I ’l megugmented m 8016 SO16L Q TSSOP16
January 2016
DocID7454 Rev 12
1/18
This is information on a product in full production.
www.st.com
ST3232B, ST3232C
3 to 5.5 V, low-power, up to 400 kbs RS-232 drivers and
receivers
Datasheet - production data
Features
300 µA supply current
300 kbps minimum guaranteed data rate
6 V/µs minimum guaranteed slew rate
Meets EIA/TIA-232 specifications down
to 3 V
Available in SO16, SO16L, and TSSOP16
packages
Description
The ST3232B and ST3232C devices are 3 V
powered EIA/TIA-232 and V.28/V.24
communication interfaces with low power
requirements and high data-rate capabilities.
These devices have a proprietary low dropout
transmitter output stage providing true RS-232
performance from 3 to 5.5 V supplies. The
devices require only four small 0.1 mF standard
external capacitors for operation from a 3 V
supply.
The ST3232B and ST3232C have two receivers
and two drivers.
The devices are guaranteed to run at data rates
of 250 kbps while maintaining RS-232 output
levels. Typical applications are notebooks,
subnotebooks and palmtop computers, battery-
powered equipment, hand-held equipment,
peripherals, and printers.
Table 1: Device summary
Order code
Package
Packaging
ST3232CDR
0 to 70 °C
SO16
(tape and
reel)
2500 parts
per reel
ST3232BDR
-40 to 85 °C
ST3232CWR
0 to 70 °C
SO16L
(tape and
reel)
1000 parts
per reel
ST3232BWR
-40 to 85 °C
ST3232CTR
0 to 70 °C
TSSOP16
(tape and
reel)
2500 parts
per reel
ST3232BTR
-40 to 85 °C
Contents
ST3232B, ST3232C
2/18
DocID7454 Rev 12
Contents
1 Pin configuration ............................................................................. 3
2 Absolute maximum ratings ............................................................. 4
3 Electrical characteristics ................................................................ 5
4 Application information .................................................................. 7
5 Typical performance characteristics ............................................. 8
6 Package information ..................................................................... 10
6.1 SO16 package information .............................................................. 11
6.2 SO16L package information ............................................................ 12
6.3 TSSOP16 package information ....................................................... 13
6.4 SO16 tape and reel package information ........................................ 14
6.5 SO16L tape and reel package information ...................................... 15
6.6 TSSOP16 tape and reel package information ................................. 16
7 Revision history ............................................................................ 17
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ST3232B, ST3232C
Pin configuration
DocID7454 Rev 12
3/18
1 Pin configuration
Figure 1: Pin connections
Table 2: Pin description
Pin n°
Symbol
Name and function
1
C1+
Positive terminal for the first charge pump capacitor
2
V+
Doubled voltage terminal
3
C1-
Negative terminal for the first charge pump capacitor
4
C2+
Positive terminal for the second charge pump capacitor
5
C2-
Negative terminal for the second charge pump capacitor
6
V-
Inverted voltage terminal
7
T2OUT
Second transmitter output voltage
8
R2IN
Second receiver input voltage
9
R2OUT
Second receiver output voltage
10
T2IN
Second transmitter input voltage
11
T1IN
First transmitter input voltage
12
R1OUT
First receiver output voltage
13
R1IN
First receiver input voltage
14
T1OUT
First transmitter output voltage
15
GND
Ground
16
VCC
Supply voltage
Absolute maximum ratings
ST3232B, ST3232C
4/18
DocID7454 Rev 12
2 Absolute maximum ratings
Table 3: Absolute maximum ratings
Symbol
Parameter
Value
Unit
VCC
Supply voltage
-0.3 to 6
V
V+
Doubled voltage terminal
(VCC - 0.3) to 7
V-
Inverted voltage terminal
0.3 to -7
V+ + |V-|
13
TIN
Transmitter input voltage range
-0.3 to 6
RIN
Receiver input voltage range
±25
TOUT
Transmitter output voltage range
±13.2
ROUT
Receiver output voltage range
-0.3 to (VCC + 0.3)
tSHORT
Transmitter output short to gnd time
Continuous
Tstg
Storage temperature
-65 to 150
°C
Absolute maximum ratings are those values beyond which damage to the device
may occur. Functional operation under these condition is not implied.
Externally applied V+ and V- can have a maximum magnitude of +7 V, but their
absolute addition can not exceed 13 V.
Running on internal charge pump, intrinsic self limitation allows exceeding those
values without any damage.
Startup voltage sequence (VCC, then V+, then V-) is critical, therefore it is not
recommended to use this device using externally applied voltage to V+ and V-.
ST3232B, ST3232C
Electrical characteristics
DocID7454 Rev 12
5/18
3 Electrical characteristics
Table 4: Electrical characteristics (C1 - C4 = 0.1 µF, VCC = 3 V to 5.5 V, TA = -40 to 85 °C,
unless otherwise specified. Typical values are referred to TA = 25 °C)
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
ISUPPLY
VCC power supply current
No load, VCC = 3 V ± 10 %, TA = 25 °C
0.3
1
mA
No load, VCC = 5 V ± 10 %, TA = 25 °C
1
2
Table 5: Logic input (C1 - C4 = 0.1 µF, VCC = 3 V to 5.5 V, TA = -40 to 85 °C, unless otherwise
specified. Typical values are referred to TA = 25 °C)
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VTIL
Input logic threshold low
T-IN (1)
0.8
V
VTIH
Input logic threshold high
VCC = 3.3 V
2
VCC = 5 V
2.4
IIL
Input leakage current
T-IN
±0.01
±1
µA
Notes:
(1)Transmitter input hysteresis is typically 250 mV.
Table 6: Transmitter (C1 - C4 = 0.1 µF tested at 3.3 V ±10 %, VCC = 3 V to 5.5 V,
TA = -40 to 85 °C, unless otherwise specified. Typical values are referred to TA = 25 °C)
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VTOUT
Output voltage swing
All transmitter outputs are loaded with 3 kΩ
to GND
±5
±5.4
V
RTOUT
Transmitter output
resistance
VCC = V+ = V- = 0 V, VOUT = ±2 V
300
10
M
Ω
ITSC
Output short circuit current
VCC = 3 V or 5 V, VOUT = ±12
± 60
mA
Table 7: Receiver (C1 - C4 = 0.1 µF tested at 3.3 V ±10 %, VCC = 3 V to 5.5 V, TA = -40 to 85 °C,
unless otherwise specified. Typical values are referred to TA = 25 °C)
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VRIN
Receiver input voltage operating range
-25
25
V
VRIL
RS-232 Input threshold low
TA = 25 °C, VCC = 3.3 V
0.6
1.1
TA = 25 °C, VCC = 5 V
0.8
1.5
VRIH
RS-232 Input threshold high
TA = 25 °C, VCC = 3.3 V
1.5
2.4
TA = 25 °C, VCC = 5 V
1.8
2.4
VRIHYS
Input hysteresis
0.3
RRIN
Input resistance
TA = 25 °C
3
5
7
VROL
TTL/CMOS output voltage low
IOUT = 1.6 mA
0.4
V
VROH
TTL/CMOS output voltage high
IOUT = -1 mA
VCC - 0.6
VCC - 0.1
Electrical characteristics
ST3232B, ST3232C
6/18
DocID7454 Rev 12
Table 8: Timing characteristics (C1 - C4 = 0.1 µF tested at 3.3 V ±10 %, VCC = 3 V to 5.5 V,
TA = -40 to 85 °C, unless otherwise specified. Typical values are referred to TA = 25 °C)
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
DR
Data transfer rate
RL = 3 kΩ, CL2 = 1000 pF one transmitter
switching
300
400
kbps
tPHLR,
tPLHR
Propagation delay input
to output
RXIN = RXOUT, CL = 150 pF
0.2
µs
|tPHLT -
tTHL|
Transmitter propagation
delay difference
See (1)
100
ns
|tPHLR -
tTHR|
Receiver propagation
delay difference
50
SRT
Transition slew rate
TA = 25 °C, RL = 3 kΩ to 7 kΩ, VCC = 3.3 V
measured from 3 V to -3 V or -3 V to 3 V,
CL = 150 pF to 1000 pF
6
30
V/µs
TA = 25 °C, RL = 3 kΩ to 7 kΩ, VCC = 3.3 V
measured from 3 V to -3 V or -3 V to 3 V,
CL = 150 pF to 2500 pF
4
30
Notes:
(1)Transmitter skew is measured at the transmitter zero cross points
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ST3232B, ST3232C
Application information
DocID7454 Rev 12
7/18
4 Application information
Figure 2: Application circuits
Table 9: Capacitance value (µF)
VCC
C1
C2
C3
C4
Cbypass
3.0 to 3.6
0.1
0.1
0.1
0.1
0.1
4.5 to 5.5
0.047
0.33
0.33
0.33
0.33
Vow) 5.0 2.5 72.5 75.0 WW) 2.25 v. (v) |oL(mA) 25 20 15 v0 luL(mA) 5
Typical performance characteristics
ST3232B, ST3232C
8/18
DocID7454 Rev 12
5 Typical performance characteristics
Unless otherwise specified TJ = 25 °C
Figure 3: Driver voltage transfer characteristics for
transmitter inputs
Figure 4: Driver voltage transfer characteristics for
receiver inputs
Figure 5: Output current vs output low voltage
at VCC = 5.5 V
Figure 6: Output current vs output low voltage
at VCC = 3 V
loKmA) 72.5 -7.5 710.0 -I2.5 450 717.5 ,5 75 4 73 72 iuwfimm 3 72.5 72 4.5 7‘ 70.5vcc7an(v) Vo( mv) 7m 75 o 5 ‘0 v.(v) E]
ST3232B, ST3232C
Typical performance characteristics
DocID7454 Rev 12
9/18
Figure 7: Output current vs output high voltage
at VCC = 5.5 V
Figure 8: Output current vs output high voltage
at VCC = 3 V
Figure 9: Receiver input resistance
Package information
ST3232B, ST3232C
10/18
DocID7454 Rev 12
6 Package information
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK® packages, depending on their level of environmental compliance. ECOPACK®
specifications, grade definitions and product status are available at: www.st.com.
ECOPACK® is an ST trademark.
ST3232B, ST3232C
Package information
DocID7454 Rev 12
11/18
6.1 SO16 package information
Figure 10: SO16 package outline
Table 10: SO16 mechanical data
Ref
Dimensions
Millimeters
Inches
Min.
Typ.
Max
Min.
Typ.
Max.
A
1.75
0.068
a1
0.1
0.25
0.004
0.010
a2
1.64
0.063
b
0.35
0.46
0.013
0.018
b1
0.19
0.25
0.007
0.010
C
0.5
0.019
c1
45 °
45 °
D
9.8
10
0.385
0.393
E
5.8
6.2
0.228
0.244
e
1.27
0.050
e3
8.89
0.350
F
3.8
4.0
0.149
0.157
G
4.6
5.3
0.181
0.208
L
0.5
1.27
0.019
0.050
M
0.62
0.024
S
8 °
8 °
Package information
ST3232B, ST3232C
12/18
DocID7454 Rev 12
6.2 SO16L package information
Figure 11: SO16L package outline
Table 11: SO16L mechanical data
Ref
Dimensions
Millimeters
Inches
Min.
Typ.
Max
Min.
Typ.
Max.
A
2.35
2.65
0.093
0.104
A1
0.1
0.3
0.004
0.012
B
0.33
0.51
0.013
0.02
C
0.23
0.32
0.009
0.013
D
10.1
10.5
0.398
0.413
E
7.4
7.6
0.291
0.299
e
1.27
0.05
H
10
10.65
0.394
0.419
h
0.25
0.75
0.01
0.03
L
0.4
1.27
0.016
0.05
k
0 °
8 °
0 °
8 °
ddd
0.1
0.004
a Pm I mmnnum
ST3232B, ST3232C
Package information
DocID7454 Rev 12
13/18
6.3 TSSOP16 package information
Figure 12: TSSOP16 package outline
Table 12: TSSOP16 mechanical data
Ref
Dimensions
Millimeters
Inches
Min
Typ
Max
Min
Typ
Max
A
1.20
0.047
A1
0.05
0.15
0.002
0.006
A2
0.80
1.00
1.05
0.031
0.039
0.041
b
0.19
0.30
0.007
0.012
c
0.09
0.20
0.004
0.008
D
4.90
5.00
5.10
0.193
0.197
0.201
E
6.20
6.40
6.60
0.244
0.252
0.260
E1
4.30
4.40
4.50
0.169
0.173
0.177
e
0.65
0.026
k
L
0.45
0.60
0.75
0.018
0.024
0.030
L1
1.00
0.039
aaa
0.10
0.004
AW! P ] :1, ] E i A0 \ Z, K0
Package information
ST3232B, ST3232C
14/18
DocID7454 Rev 12
6.4 SO16 tape and reel package information
Figure 13: SO16 tape and reel package outline
1. Drawing not to scale
Table 13: SO16 tape and reel mechanical data
Ref
Dimensions
Millimeters
Inches
Min.
Typ.
Max
Min.
Typ.
Max.
A
330
12.992
C
12.8
13.2
0.504
0.519
D
20.2
0.795
N
60
2.362
T
22.4
0.882
Ao
6.45
6.65
0.254
0.262
Bo
10.3
10.5
0.406
0.414
Ko
2.1
2.3
0.082
0.090
Po
3.9
4.1
0.153
0.161
P
7.9
8.1
0.311
0.319
’3 O ‘, d minim
ST3232B, ST3232C
Package information
DocID7454 Rev 12
15/18
6.5 SO16L tape and reel package information
Figure 14: SO16L tape and reel package outline
1. Drawing not to scale
Table 14: SO16L tape and reel mechanical data
Ref
Dimensions
Millimeters
Inches
Min.
Typ.
Max
Min.
Typ.
Max.
A
330
12.992
C
12.8
13.2
0.504
0.519
D
20.2
0.795
N
60
2.362
T
22.4
0.882
Ao
10.8
11.0
0.425
0.433
Bo
10.7
10.9
0.421
0.429
Ko
2.9
3.1
0.114
0.122
Po
3.9
4.1
0.153
0.161
P
11.9
12.1
0.468
0.476
Po Ao \ ,oq E E] El jO K0
Package information
ST3232B, ST3232C
16/18
DocID7454 Rev 12
6.6 TSSOP16 tape and reel package information
Figure 15: TSSOP16 tape and reel package outline
1. Drawing not to scale
Table 15: TSSOP16 tape and reel mechanical data
Ref
Dimensions
Millimeters
Inches
Min.
Typ.
Max
Min.
Typ.
Max.
A
330
12.992
C
12.8
13.2
0.504
0.519
D
20.2
0.795
N
60
2.362
T
22.4
0.882
Ao
6.7
6.9
0.264
0.272
Bo
5.3
5.5
0.209
0.217
Ko
1.6
1.8
0.063
0.071
Po
3.9
4.1
0.153
0.161
P
7.9
8.1
0.311
0.319
ST3232B, ST3232C
Revision history
DocID7454 Rev 12
17/18
7 Revision history
Table 16: Document revision history
Date
Revision
Changes
06-Sep-2006
8
Order codes has been updated and new template.
25-Oct-2006
9
Order codes has been updated.
21-Jan-2008
10
Added note on Table 3.
08-Feb-2008
11
Modified: Table 1 on page 1.
25-Jan-2016
12
Updated document layout
Table 3: "Absolute maximum ratings": added Tstg
Updated titles of Figure 5, Figure 6, Figure 7, and Figure 8
Section 6.2: replaced SO16L package outline and mechanical data
Section 6.3: removed A1 (typ: inches), updated E1 (max: mm and
inches), added L1 and aaa.
ST3232B, ST3232C
18/18
DocID7454 Rev 12
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