ATECC608A Summary Datasheet by MikroElektronika

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G MICROCHIP
ATECC608A
CryptoAuthentication™ Device Summary Datasheet
Features
Cryptographic Co-Processor with Secure Hardware-Based Key Storage:
Protected storage for up to 16 keys, certificates or data
Hardware Support for Asymmetric Sign, Verify, Key Agreement:
ECDSA: FIPS186-3 Elliptic Curve Digital Signature
ECDH: FIPS SP800-56A Elliptic Curve Diffie-Hellman
NIST Standard P256 Elliptic Curve Support
Hardware Support for Symmetric Algorithms:
SHA-256 & HMAC Hash including off-chip context save/restore
AES-128: Encrypt/Decrypt, Galois Field Multiply for GCM
Networking Key Management Support:
Turnkey PRF/HKDF calculation for TLS 1.2 & 1.3
Ephemeral key generation and key agreement in SRAM
Small message encryption with keys entirely protected
Secure Boot Support:
Full ECDSA code signature validation, optional stored digest/signature
Optional communication key disablement prior to secure boot
Encryption/Authentication for messages to prevent on-board attacks
Internal High-Quality NIST SP 800-90A/B/C Random Number Generator (RNG)
Two High-Endurance Monotonic Counters
Unique 72-Bit Serial Number
Two Interface Options Available:
High-speed Single Pin Interface with One GPIO Pin
1 MHz Standard I2C Interface
1.8V to 5.5V IO Levels, 2.0V to 5.5V Supply Voltage
<150 nA Sleep Current
8-pad UDFN and 8-lead SOIC
Die-on-Tape and Reel for Qualified Customers (Contact Microchip Sales)
Applications
IoT network endpoint key management & exchange
Encryption for small messages and PII data
Secure Boot and Protected Download
Ecosystem Control, Anti-cloning
This is a summary document. A
complete document is available under
NDA. For more information, please
contact your local Microchip sales
office.
© 2018 Microchip Technology Inc. Datasheet Summary DS40001977B-page 1
Srlead SO‘C HHHH HHHH 8rpad UDFN
Pin Configuration and Pinouts
Table 1. Pin Configuration
Pin Function
NC No Connect
GND Ground
SDA Serial Data
SCL Serial Clock Input
VCC Power Supply
Figure 1. Pinouts
1
2
3
4
NC
NC
NC
GND
8
7
6
5
VCC
NC
SCL
SDA
8-pad UDFN
(Top View)
1
2
3
4
NC
NC
NC
GND
8
7
6
5
VCC
NC
SCL
SDA
8-lead SOIC
(Top View)
3-lead Contact
(Top View)
1
2
3
SDA
GND
VCC
ATECC608A
© 2018 Microchip Technology Inc. Datasheet Summary DS40001977B-page 2
Table of Contents
Features.......................................................................................................................... 1
Applications..................................................................................................................... 1
Pin Configuration and Pinouts.........................................................................................2
1. Introduction................................................................................................................4
1.1. Applications..................................................................................................................................4
1.2. Device Features........................................................................................................................... 4
1.3. Cryptographic Operation.............................................................................................................. 5
2. Electrical Characteristics........................................................................................... 6
2.1. Absolute Maximum Ratings..........................................................................................................6
2.2. Reliability......................................................................................................................................6
2.3. AC Parameters: All I/O Interfaces................................................................................................ 6
2.4. DC Parameters: All I/O Interfaces.............................................................................................. 10
3. Compatibility............................................................................................................ 14
3.1. Microchip ATECC508A...............................................................................................................14
3.2. Microchip ATSHA204A, ATECC108A.........................................................................................15
4. Package Marking Information..................................................................................16
5. Package Drawings...................................................................................................17
5.1. 8-lead SOIC................................................................................................................................17
5.2. 8-pad UDFN............................................................................................................................... 20
6. Revision History.......................................................................................................23
The Microchip Web Site................................................................................................ 24
Customer Change Notification Service..........................................................................24
Customer Support......................................................................................................... 24
Product Identification System........................................................................................25
Microchip Devices Code Protection Feature................................................................. 26
Legal Notice...................................................................................................................26
Trademarks................................................................................................................... 26
Quality Management System Certified by DNV.............................................................27
Worldwide Sales and Service........................................................................................28
© 2018 Microchip Technology Inc. Datasheet Summary DS40001977B-page 3
1. Introduction
1.1 Applications
The ATECC608A is a member of the Microchip CryptoAuthentication family of high-security
cryptographic devices which combine world-class hardware-based key storage with hardware
cryptographic accelerators to implement various authentication and encryption protocols.
The ATECC608A has a flexible command set that allows use in many applications, including the
following:
Network/IoT Node Endpoint Security
Manage node identity authentication and session key creation & management. Supports the entire
ephemeral session key generation flow for multiple protocols including TLS 1.2 (and earlier) and
TLS 1.3
Secure Boot
Support the MCU host by validating code digests and optionally enabling communication keys on
success. Various configurations to offer enhanced performance are available.
Small Message Encryption
Hardware AES engine to encrypt and/or decrypt small messages or data such as PII information.
Supports AES-ECB mode directly. Other modes can be implemented with the help of the host
microcontroller. Additional GFM calculation function to support AES-GCM.
Key Generation for Software Download
Supports local protected key generation for downloaded images. Both broadcast of one image to
many systems, each with the same decryption key, or point-to-point download of unique images per
system are supported.
Ecosystem control and Anti-Counterfeiting
Validates that a system or component is authentic and came from the OEM shown on the
nameplate.
The ATECC608A is generally compatible with the ATECC508A when properly configured. See Section
3.1 Microchip ATECC508A for more details.
1.2 Device Features
The ATECC608A includes an EEPROM array which can be used for storage of up to 16 keys, certificates,
miscellaneous read/write, read-only or secret data, consumption logging, and security configurations.
Access to the various sections of memory can be restricted in a variety of ways and then the
configuration can be locked to prevent changes.
Access to the device is made through a standard I2C Interface at speeds of up to 1 Mb/s. The interface is
compatible with standard Serial EEPROM I2C interface specifications. The device also supports a Single-
Wire Interface (SWI), which can reduce the number of GPIOs required on the system processor, and/or
reduce the number of pins on connectors. If the Single-Wire Interface is enabled, the remaining pin is
available for use as a GPIO, an authenticated output or tamper input.
Each ATECC608A ships with a guaranteed unique 72-bit serial number. Using the cryptographic
protocols supported by the device, a host system or remote server can verify a signature of the serial
number to prove that the serial number is authentic and not a copy. Serial numbers are often stored in a
ATECC608A
Introduction
© 2018 Microchip Technology Inc. Datasheet Summary DS40001977B-page 4
standard Serial EEPROM; however, these can be easily copied with no way for the host to know if the
serial number is authentic or if it is a clone.
The ATECC608A features a wide array of defense mechanisms specifically designed to prevent physical
attacks on the device itself, or logical attacks on the data transmitted between the device and the system.
Hardware restrictions on the ways in which keys are used or generated provide further defense against
certain styles of attack.
1.3 Cryptographic Operation
The ATECC608A implements a complete asymmetric (public/private) key cryptographic signature solution
based upon Elliptic Curve Cryptography and the ECDSA signature protocol. The device features
hardware acceleration for the NIST standard P256 prime curve and supports the complete key life cycle
from high quality private key generation, to ECDSA signature generation, ECDH key agreement, and
ECDSA public key signature verification.
The hardware accelerator can implement such asymmetric cryptographic operations from ten to one-
thousand times faster than software running on standard microprocessors, without the usual high risk of
key exposure that is endemic to standard microprocessors.
The ATECC608A also implements AES-128, SHA256 and multiple SHA derivatives such as HMAC(SHA),
PRF (the key derivation function in TLS) and HKDF in hardware. Support is included for the Galois Field
Multiply (aka Ghash) to facilitate GCM encryption/decryption/authentication.
The device is designed to securely store multiple private keys along with their associated public keys and
certificates. The signature verification command can use any stored or an external ECC public key. Public
keys stored within the device can be configured to require validation via a certificate chain to speed-up
subsequent device authentications.
Random private key generation is supported internally within the device to ensure that the private key can
never be known outside of the device. The public key corresponding to a stored private key is always
returned when the key is generated and it may optionally be computed at a later time.
The ATECC608A can generate high-quality random numbers using its internal random number generator.
This sophisticated function includes runtime health testing designed to ensure that the values generated
from the internal noise source contain sufficient entropy at the time of use. The random number generator
is designed to meet the requirements documented in the NIST 800-90A, 800-90B and 800-90C
documents.
These random numbers can be employed for any purpose, including usage as part of the device’s
cryptographic protocols. Because each random number is assured to be essentially unique from all
numbers ever generated on this or any other device, their inclusion in the protocol calculation ensures
that replay attacks (i.e. re-transmitting a previously successful transaction) will always fail.
The ATECC608A also supports a standard hash-based challenge-response protocol in order to allow its
use across a wide variety of additional applications. In its most basic instantiation, the system sends a
challenge to the device, which combines that challenge with a secret key via the MAC command and then
sends the response back to the system. The device uses a SHA-256 cryptographic hash algorithm to
make that combination so that an observer on the bus cannot derive the value of the secret key. At the
same time the recipient can verify that the response is correct by performing the same calculation with a
stored copy of the secret on the recipient’s system. There are a wide variety of variations possible on this
symmetric challenge/response theme.
ATECC608A
Introduction
© 2018 Microchip Technology Inc. Datasheet Summary DS40001977B-page 5
2. Electrical Characteristics
2.1 Absolute Maximum Ratings
Operating Temperature -40°C to +85°C
Storage Temperature -65°C to +150°C
Maximum Operating Voltage 6.0V
DC Output Current 5.0 mA
Voltage on any pin -0.5V to (VCC + 0.5V) -0.5V to (VCC + 0.5V)
ESD Ratings:
Human Body Model(HBM) ESD >4kV
Charge Device Model(CDM) ESD >1kV
Note:  Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage
to the device. This is a stress rating only and functional operation of the device at these or any other
conditions beyond those indicated in the operational sections of this specification are not implied.
Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
2.2 Reliability
The ATECC608A is fabricated with Microchip’s high reliability CMOS EEPROM manufacturing
technology.
Table 2-1. EEPROM Reliability
Parameter Min Typical Max Units
Write Endurance at +85°C (Each Byte) 400,000 Write Cycles
Data Retention at +55°C 10 Years
Data Retention at +35°C 30 50 Years
Read Endurance Unlimited Read Cycles
2.3 AC Parameters: All I/O Interfaces
Figure 2-1. AC Timing Diagram: All Interfaces
Data Comm
Wake
tLIGNORE tHIGNORE
Noise
Suppresion
tWLO tWHI
ATECC608A
Electrical Characteristics
© 2018 Microchip Technology Inc. Datasheet Summary DS40001977B-page 6
Table 2-2. AC Parameters: All I/O Interfaces
Parameter Symbol Direction Min Typ Max Unit Conditions
Power-Up
Delay(2)
tPU To Crypto
Authentication
100 µs Minimum time between VCC > VCC
min prior to start of tWLO.
Wake Low
Duration
tWLO To Crypto
Authentication
60 — — µs
Wake High
Delay to Data
Comm
tWHI To Crypto
Authentication
1500 µs SDA should be stable high for this
entire duration unless polling is
implemented. SelfTest is not enabled
at power-up.
Wake High
Delay when
SelfTest is
Enabled
tWHIST To Crypto
Authentication
20 ms SDA should be stable high for this
entire duration unless polling is
implemented.
High Side
Glitch Filter at
Active
tHIGNORE_A To Crypto
Authentication
45(1) ns Pulses shorter than this in width will
be ignored by the device, regardless
of its state when active.
Low Side
Glitch Filter at
Active
tLIGNORE_A To Crypto
Authentication
45(1) ns Pulses shorter than this in width will
be ignored by the device, regardless
of its state when active.
Low Side
Glitch Filter at
Sleep
tLIGNORE_S To Crypto
Authentication
15(1) µs Pulses shorter than this in width will
be ignored by the device when in
Sleep mode.
Watchdog
Timeout
tWATCHDOG To Crypto
Authentication
0.7 1.3 1.7 s Time from wake until device is forced
into Sleep mode if Config.ChipMode.
<2> is 0.
7.6 13 17 s Watchdog time : Config.ChipMode.
<2> is 0.
Note: 
1. These parameters are characterized, but not production tested.
2. The power-up delay will be significantly longer if Power-On self test is enabled in the configuration
zone.
ATECC608A
Electrical Characteristics
© 2018 Microchip Technology Inc. Datasheet Summary DS40001977B-page 7
2.3.1 AC Parameters: Single-Wire Interface
Figure 2-2. AC Timing Diagram: Single-Wire Interface
tSTART tZHI tZLO
Logic Ø
tSTART
tBIT
Logic 1
tSTART
tTURNAROUND
tSTART
SDA
Table 2-3. AC Parameters: Single-Wire Interface
Unless otherwise specified, applicable from TA = -40°C to +85°C, VCC = +2.0V to +5.5V, CL = 100 pF.
Parameter Symbol Direction Min. Typ. Max. Unit Conditions
Start Pulse
Duration
tSTART To Crypto
Authentication
4.10 4.34 4.56 µs
From Crypto
Authentication
4.60 6 8.60 µs
Zero
Transmission
High Pulse
tZHI To Crypto
Authentication
4.10 4.34 4.56 µs
From Crypto
Authentication
4.60 6 8.60 µs
Zero
Transmission
Low Pulse
tZLO To Crypto
Authentication
4.10 4.34 4.56 µs
From Crypto
Authentication
4.60 6 8.60 µs
Bit Time(note) tBIT To Crypto
Authentication
37 39 µs If the bit time exceeds tTIMEOUT
then ATECC608A may enter the
Sleep mode.
From Crypto
Authentication
41 54 78 µs
ATECC608A
Electrical Characteristics
© 2018 Microchip Technology Inc. Datasheet Summary DS40001977B-page 8
4% T U
...........continued
Parameter Symbol Direction Min. Typ. Max. Unit Conditions
Turn Around
Delay
tTURNAROUND From Crypto
Authentication
64 96 131 µs ATECC608A will initiate the first
low going transition after this time
interval following the initial falling
edge of the start pulse of the last
bit of the transmit flag.
To Crypto
Authentication
93 µs After ATECC608A transmits the
last bit of a group, system must
wait this interval before sending the
first bit of a flag. It is measured
from the falling edge of the start
pulse of the last bit transmitted by
ATECC608A.
IO Timeout tTIMEOUT To Crypto
Authentication
45 65 85 ms ATECC608A may transition to the
Sleep mode if the bus is inactive
longer than this duration.
Note:  START, ZLO, ZHI, and BIT are designed to be compatible with a standard UART running at
230.4 kBaud for both transmit and receive. The UART should be set to seven data bits, no parity and one
Stop bit.
2.3.2 AC Parameters: I2C Interface
Figure 2-3. I2C Synchronous Data Timing
SCL
SDA IN
SDA OUT
tF
tHIGH
tLOW tLOW
tR
tAA tDH tBUF
tSU.STO
tSU.DAT
tHD.DAT
tHD.STA
tSU.STA
Table 2-4. AC Characteristics of I2C Interface
Unless otherwise specified, applicable over recommended operating range from TA = -40°C to + 85°C, VCC = +2.0V
to +5.5V, CL = 1 TTL Gate and 100 pF
Parameter Symbol Min. Max. Units
SCK Clock Frequency fSCK 0 1 MHz
SCK High Time tHIGH 400 — ns
SCK Low Time tLOW 400 — ns
Start Setup Time tSU.STA 250 — ns
Start Hold Time tHD.STA 250 — ns
ATECC608A
Electrical Characteristics
© 2018 Microchip Technology Inc. Datasheet Summary DS40001977B-page 9
...........continued
Parameter Symbol Min. Max. Units
Stop Setup Time tSU.STO 250 — ns
Data In Setup Time tSU.DAT 100 — ns
Data In Hold Time tHD.DAT 0 — ns
Input Rise Time (1) tR— 300 ns
Input Fall Time (1) tF— 100 ns
Clock Low to Data Out Valid tAA 50 550 ns
Data Out Hold Time tDH 50 — ns
SMBus Timeout Delay tTIMEOUT 25 75 ms
Time bus must be free before a new transmission can start (1) tBUF 500 — ns
Note: 
1. Values are based on characterization and are not tested.
2. AC measurement conditions:
– RL (connects between SDA and VCC): 1.2 kΩ (for VCC = +2.0V to +5.0V)
Input pulse voltages: 0.3VCC to 0.7VCC
Input rise and fall times: ≤ 50 ns
Input and output timing reference voltage: 0.5VCC
2.4 DC Parameters: All I/O Interfaces
Table 2-5. DC Parameters on All I/O Interfaces
Parameter Symbol Min. Typ. Max. Unit Conditions
Ambient Operating
Temperature
TA-40 — +85 °C
Power Supply
Voltage
VCC 2.0 — 5.5 V
Active Power
Supply Current
ICC 2 3 mA Waiting for I/O during I/O transfers or execution of non-
ECC commands. Independent of Clock Divider value.
14 mA During ECC command execution. Clock divider = 0x0
6 mA During ECC command execution. Clock divider = 0x5
3 mA During ECC command execution. Clock divider = 0xD
Idle Power Supply
Current
IIDLE 800 µA When device is in idle mode,
VSDA and VSCL < 0.4V or > VCC – 0.4
Sleep Current ISLEEP 30 150 nA When device is in sleep mode, VCC ≤ 3.6V,
VSDA and VSCL < 0.4V or > VCC – 0.4, TA ≤ 55°C
2 µA When device is in sleep mode.
Over full VCC and temperature range.
ATECC608A
Electrical Characteristics
© 2018 Microchip Technology Inc. Datasheet Summary DS40001977B-page 10
...........continued
Parameter Symbol Min. Typ. Max. Unit Conditions
Output Low
Voltage
VOL 0.4 V When device is in active mode,
VCC = 2.5 to 5.5V
Output Low
Current
IOL 4 mA When device is in active mode,
VCC = 2.5 to 5.5V, VOL = 0.4V
Theta JA ƟJA 166 °C/W SOIC (SSH)
173 °C/W UDFN (MAH)
146 °C/W RBH
2.4.1 VIH and VIL Specifications
The input levels of the device will vary dependent on the mode and voltage of the device. The input
voltage thresholds when in Sleep or Idle mode are dependent on the VCC level as shown in Figure 2-4.
When in sleep or idle mode the TTLenable bit has no effect.
When the device is active (i.e., not in Sleep or Idle mode), the input voltage thresholds are different
depending upon the state of TTLenable (bit 1) within the ChipMode byte in the Configuration zone of the
EEPROM. If the voltage supplied to the VCC pin of the ATECC608A is higher than the system voltage to
which the input pull-up resistor is connected, then the system designer may choose to set TTLenable to
zero. This enables a fixed input threshold shown by Table 2-6.
Table 2-6. VIL, VIH on All I/O Interfaces (TTLenable = 0)
Parameter Symbol Min. Typ. Max. Unit Conditions
Input Low Voltage VIL -0.5 0.5 V When device is active and TTLenable bit in
configuration memory is zero; otherwise, see
above.
Input High Voltage VIH 1.5 — VCC + 0.5 V When device is active and TTLenable bit in
configuration memory is zero; otherwise, see
above.
ATECC608A
Electrical Characteristics
© 2018 Microchip Technology Inc. Datasheet Summary DS40001977B-page 11
1.6 1.4 0.4 0.2 0.0 2.5 3.5 Vt: (V) VlHisleEp — V|L_Sleep 5 5.5
Figure 2-4. VIH and VIL in Sleep and Idle Mode
When a common voltage is used for the ATECC608A VCC pin and the input pull-up resistor, then the
TTLenable bit should be set to a one, which permits the input thresholds to track the supply as shown in
Figure 2-5.
ATECC608A
Electrical Characteristics
© 2018 Microchip Technology Inc. Datasheet Summary DS40001977B-page 12
Figure 2-5. VIH and VIL When Active and TTLenable = 1 on All I/O Interfaces
0.4
0.9
1.4
1.9
2.4
2.9
2 2.5 3 3.5 4 4.5 5 5.5
VIN (V)
VCC (V)
VIH_Act
VIL_Act
ATECC608A
Electrical Characteristics
© 2018 Microchip Technology Inc. Datasheet Summary DS40001977B-page 13
3. Compatibility
3.1 Microchip ATECC508A
The ATECC608A is designed to be fully compatible with the ATECC508A devices with the limited
exception of the functions listed below. If the ATECC608A is properly configured, software written for the
ATECC508A should work with the ATECC608A without any required changes, again with the exception of
the functions listed below.
Note:  Most elements of the configuration zone in the ATECC608A are identical in both location and
value with the ATECC508A. However, the initial values that had been stored in the LastKeyUse field may
need to be changed to conform to the new definition of those bytes which can be found in this document.
That field contained the initial count for the Slot 15 limited use function which is supported in the
ATECC608A via the monotonic counters.
3.1.1 New Features in ATECC608A vs. ATECC508A
Secure boot function, with IO encryption and authentication
KDF command, supporting PRF, HKDF, AES
AES command, including encrypt/decrypt
GFM calculation function for GCM AEAD mode of AES
Updated NIST SP800-90 A/B/C Random Number Generator
Flexible SHA/HMAC command with context save/restore
SHA command execution time significantly reduced
Volatile Key Permitting to prevent device transfer
Transport Key Locking to protect programmed devices during delivery
Counter Limit Match function
Ephemeral key generation in SRAM, also supported with ECDH and KDF
Verify command output can be validated with a MAC
Encrypted output for ECDH
Added self test command, optional automatic power-on self test
Unaligned public key for built-in X.509 cert key validation
Optional power reduction at increased execution time
Programmable I2C address after data (secret) zone lock
3.1.2 Features Eliminated in ATECC608A vs. ATECC508A
HMAC command removed, replaced via new more powerful SHA command
OTP consumption mode eliminated, now read only
Pause command eliminated along with related Selector function in UpdateExtra
Slot 15 special limited use eliminated, replaced with standard monotonic counter limited use
SHA command no longer uses TempKey during the digest calculation and the result in TempKey is
unchanged throughout the SHA operation. TempKey can however still be used to initialize the SHA
for the HMAC_Start or to store the final digest.
ATECC608A
Compatibility
© 2018 Microchip Technology Inc. Datasheet Summary DS40001977B-page 14
3.2 Microchip ATSHA204A, ATECC108A
The ATECC608A is generally compatible with all ATSHA204/A and ATECC108/A devices. If properly
configured, it can be used in most situations where these devices are currently employed. For
ATSHA204A and ATECC108A compatibility restrictions, see the ATECC508A data sheet.
ATECC608A
Compatibility
© 2018 Microchip Technology Inc. Datasheet Summary DS40001977B-page 15
4. Package Marking Information
As part of Microchip’s overall security features, the part mark for all crypto devices is intentionally vague.
The marking on the top of the package does not provide any information as to the actual device type or
the manufacturer of the device. The alphanumeric code on the package provides manufacturing
information and will vary with assembly lot. The packaging mark should not be used as part of any
incoming inspection procedure.
ATECC608A
Package Marking Information
© 2018 Microchip Technology Inc. Datasheet Summary DS40001977B-page 16
E
5. Package Drawings
5.1 8-lead SOIC
ATECC608A
Package Drawings
© 2018 Microchip Technology Inc. Datasheet Summary DS40001977B-page 17
um: M‘LLIMETERS Dwanaon lens MIN | NOM | MAX Numberoles N a mm s 1 27 asc OveraH Hem A , , 1 75 Molded Package Tmckness A2 1 25 , , S'andofl A1 a 1n , u 25 OveraH wmm E 5 no asc Mulder! Package wmm E1 3 an asc OveraH Lengm D 4 an asc Charmer (Opuuna‘) n u 25 , a 5n Fem Lengm L u AB , 127 Fem Angle «2 m , 5° Lead Tmckness c u 17 , u 25 Lead wmm 5 u 31 , u 51 Mom Dvafl Ang‘e Tap a 5~ , 15~ 3 5“ , 15“
ATECC608A
Package Drawings
© 2018 Microchip Technology Inc. Datasheet Summary DS40001977B-page 18
JUN EL
ATECC608A
Package Drawings
© 2018 Microchip Technology Inc. Datasheet Summary DS40001977B-page 19
5.2 8-pad UDFN
ATECC608A
Package Drawings
© 2018 Microchip Technology Inc. Datasheet Summary DS40001977B-page 20
ATECC608A
Package Drawings
© 2018 Microchip Technology Inc. Datasheet Summary DS40001977B-page 21
ATECC608A
Package Drawings
© 2018 Microchip Technology Inc. Datasheet Summary DS40001977B-page 22
6. Revision History
Revision B (October 2018)
1. Updated Section Features by adding the Die-on-Tape package option.
2. Updated 2.3 AC Parameters: All I/O Interfaces and 2.3.1 AC Parameters: Single-Wire Interface in
Section 2.3 AC Parameters: All I/O Interfaces.
3. Updated Section Product Identification System.
Revision A (November 2017)
Original release of the document.
ATECC608A
Revision History
© 2018 Microchip Technology Inc. Datasheet Summary DS40001977B-page 23
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ATECC608A
© 2018 Microchip Technology Inc. Datasheet Summary DS40001977B-page 24
PART NO. VXXX XX 7X Device Patkage l/O Type Tape and Reel
Product Identification System
To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office.
Device: ATECC608A: Cryptographic Co-processor with Secure Hardware-based Key
Storage
Package Options SSH 8-Lead (0.150” Wide Body), Plastic Gull Wing Small Outline (JEDEC
SOIC)
MAH 8-Pad 2 x 3 x 0.6 mm Body, Thermally Enhanced Plastic Ultra Thin
Dual Flat NoLead Package (UDFN)
W07(3) Die-on-Tape and Reel. Available to qualified customers only. Please
contact your local Microchip Sales Office for more details on this
packaging option.
I/O Type CZ Single Wire Interface
DA I2C Interface
Tape and Reel Options B Tube
T Large Reel (Size varies by package type)
S Small Reel (Only available for MAH)
Examples:
ATECC608A-SSHCZ-T: 8-Lead (0.150” Wide Body), Plastic Gull Wing Small Outline (JEDEC
SOIC), Single-Wire, Tape and Reel, 4,000 per Reel
ATECC608A-SSHCZ-B: 8-Lead (0.150” Wide Body), Plastic Gull Wing Small Outline (JEDEC
SOIC), Single-Wire, Tube, 100 per Tube
ATECC608A-SSHDA-T: 8-Lead (0.150” Wide Body), Plastic Gull Wing Small Outline (JEDEC
SOIC), I2C, Tape and Reel, 4,000 per Reel
ATECC608A-SSHDA-B: 8-Lead (0.150” Wide Body), Plastic Gull Wing Small Outline (JEDEC
SOIC), I2C, Tube, 100 per Tube
ATECC608A-MAHCZ-T: 8-Pad 2 x 3 x 0.6 mm Body, Thermally Enhanced Plastic Ultra Thin Dual
Flat NoLead Package (UDFN), Single-Wire, Tape and Reel, 15,000 per Reel
ATECC608A-MAHDA-T: 8-Pad 2 x 3 x 0.6 mm Body, Thermally Enhanced Plastic Ultra Thin Dual
Flat NoLead Package (UDFN), I2C, Tape and Reel, 15,000 per Reel
ATECC608A-MAHCZ-S: 8-Pad 2 x 3 x 0.6 mm Body, Thermally Enhanced Plastic Ultra Thin Dual
Flat NoLead Package (UDFN), Single-Wire, Tape and Reel, 3,000 per Reel
ATECC608A-MAHDA-S: 8-Pad 2 x 3 x 0.6 mm Body, Thermally Enhanced Plastic Ultra Thin Dual
Flat NoLead Package (UDFN), I2C, Tape and Reel, 3,000 per Reel
ATECC608A
© 2018 Microchip Technology Inc. Datasheet Summary DS40001977B-page 25
Note: 
1. Tape and Reel identifier only appears in the catalog part number description. This identifier is used
for ordering purposes and is not printed on the device package. Check with your Microchip Sales
Office for package availability with the Tape and Reel option.
2. Small form-factor packaging options may be available. Please check http://www.microchip.com/
packaging for small-form factor package availability, or contact your local Sales Office.
3. Die-on-Tape and Reel devices are available both in the I2C and SWI I/O options. Reel size is a
minimum of 10K Units and must be custom ordered.
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices:
Microchip products meet the specification contained in their particular Microchip Data Sheet.
Microchip believes that its family of products is one of the most secure families of its kind on the
market today, when used in the intended manner and under normal conditions.
There are dishonest and possibly illegal methods used to breach the code protection feature. All of
these methods, to our knowledge, require using the Microchip products in a manner outside the
operating specifications contained in Microchip’s Data Sheets. Most likely, the person doing so is
engaged in theft of intellectual property.
Microchip is willing to work with the customer who is concerned about the integrity of their code.
Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code. Code protection does not mean that we are guaranteeing the product as “unbreakable.”
Code protection is constantly evolving. We at Microchip are committed to continuously improving the
code protection features of our products. Attempts to break Microchip’s code protection feature may be a
violation of the Digital Millennium Copyright Act. If such acts allow unauthorized access to your software
or other copyrighted work, you may have a right to sue for relief under that Act.
Legal Notice
Information contained in this publication regarding device applications and the like is provided only for
your convenience and may be superseded by updates. It is your responsibility to ensure that your
application meets with your specifications. MICROCHIP MAKES NO REPRESENTATIONS OR
WARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED, WRITTEN OR ORAL, STATUTORY
OR OTHERWISE, RELATED TO THE INFORMATION, INCLUDING BUT NOT LIMITED TO ITS
CONDITION, QUALITY, PERFORMANCE, MERCHANTABILITY OR FITNESS FOR PURPOSE.
Microchip disclaims all liability arising from this information and its use. Use of Microchip devices in life
support and/or safety applications is entirely at the buyer’s risk, and the buyer agrees to defend,
indemnify and hold harmless Microchip from any and all damages, claims, suits, or expenses resulting
from such use. No licenses are conveyed, implicitly or otherwise, under any Microchip intellectual
property rights unless otherwise stated.
Trademarks
The Microchip name and logo, the Microchip logo, AnyRate, AVR, AVR logo, AVR Freaks, BitCloud,
chipKIT, chipKIT logo, CryptoMemory, CryptoRF, dsPIC, FlashFlex, flexPWR, Heldo, JukeBlox, KeeLoq,
Kleer, LANCheck, LINK MD, maXStylus, maXTouch, MediaLB, megaAVR, MOST, MOST logo, MPLAB,
OptoLyzer, PIC, picoPower, PICSTART, PIC32 logo, Prochip Designer, QTouch, SAM-BA, SpyNIC, SST,
ATECC608A
© 2018 Microchip Technology Inc. Datasheet Summary DS40001977B-page 26
SST Logo, SuperFlash, tinyAVR, UNI/O, and XMEGA are registered trademarks of Microchip Technology
Incorporated in the U.S.A. and other countries.
ClockWorks, The Embedded Control Solutions Company, EtherSynch, Hyper Speed Control, HyperLight
Load, IntelliMOS, mTouch, Precision Edge, and Quiet-Wire are registered trademarks of Microchip
Technology Incorporated in the U.S.A.
Adjacent Key Suppression, AKS, Analog-for-the-Digital Age, Any Capacitor, AnyIn, AnyOut, BodyCom,
CodeGuard, CryptoAuthentication, CryptoAutomotive, CryptoCompanion, CryptoController, dsPICDEM,
dsPICDEM.net, Dynamic Average Matching, DAM, ECAN, EtherGREEN, In-Circuit Serial Programming,
ICSP, INICnet, Inter-Chip Connectivity, JitterBlocker, KleerNet, KleerNet logo, memBrain, Mindi, MiWi,
motorBench, MPASM, MPF, MPLAB Certified logo, MPLIB, MPLINK, MultiTRAK, NetDetach, Omniscient
Code Generation, PICDEM, PICDEM.net, PICkit, PICtail, PowerSmart, PureSilicon, QMatrix, REAL ICE,
Ripple Blocker, SAM-ICE, Serial Quad I/O, SMART-I.S., SQI, SuperSwitcher, SuperSwitcher II, Total
Endurance, TSHARC, USBCheck, VariSense, ViewSpan, WiperLock, Wireless DNA, and ZENA are
trademarks of Microchip Technology Incorporated in the U.S.A. and other countries.
SQTP is a service mark of Microchip Technology Incorporated in the U.S.A.
Silicon Storage Technology is a registered trademark of Microchip Technology Inc. in other countries.
GestIC is a registered trademark of Microchip Technology Germany II GmbH & Co. KG, a subsidiary of
Microchip Technology Inc., in other countries.
All other trademarks mentioned herein are property of their respective companies.
© 2018, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved.
ISBN: 978-1-5224-3616-4
Quality Management System Certified by DNV
ISO/TS 16949
Microchip received ISO/TS-16949:2009 certification for its worldwide headquarters, design and wafer
fabrication facilities in Chandler and Tempe, Arizona; Gresham, Oregon and design centers in California
and India. The Company’s quality system processes and procedures are for its PIC® MCUs and dsPIC®
DSCs, KEELOQ® code hopping devices, Serial EEPROMs, microperipherals, nonvolatile memory and
analog products. In addition, Microchip’s quality system for the design and manufacture of development
systems is ISO 9001:2000 certified.
ATECC608A
© 2018 Microchip Technology Inc. Datasheet Summary DS40001977B-page 27
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© 2018 Microchip Technology Inc. Datasheet Summary DS40001977B-page 28

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