74HC688 Datasheet by Nexperia USA Inc.

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Table 1. Ordering information nexpefla
74HC688
8-bit magnitude comparator
Rev. 3 — 4 July 2018 Product data sheet
1 General description
The 74HC688 is an 8-bit magnitude comparator. It performs comparisons of two 8-bit
binary or BCD words. Inputs include clamp diodes. This enables the use of current
limiting resistors to interface inputs to voltages in excess of VCC.
2 Features and benefits
Compare two 8-bit words
Wide supply voltage range from 2.0 to 6.0 V
CMOS input levels
Complies with JEDEC standard: no. 7A
ESD protection:
HBM JESD22-A114-F exceeds 2000 V
MM JESD22-A115-A exceeds 200 V
Multiple package options
Specified from -40 °C to +85 °C and from -40 °C to +125 °C
3 Ordering information
Table 1.Ordering information
PackageType number
Temperature range Name Description Version
74HC688D −40 °C to +125 °C SO20 plastic small outline package; 20 leads;
body width 7.5 mm
SOT163-1
74HC688DB −40 °C to +125 °C SSOP20 plastic shrink small outline package; 20 leads;
body width 5.3 mm
SOT339-1
74HC688PW −40 °C to +125 °C TSSOP20 plastic thin shrink small outline package; 20 leads;
body width 4.4 mm
SOT360-1
74H0688 ass-029700 HHHHL ass-025701 rm “3.025702
Nexperia 74HC688
8-bit magnitude comparator
4 Functional diagram
19P=Q
P0
P1
P2
P3
P4
P5
P6
P7
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
2
4
6
8
11
13
15
17
3
5
7
9
12
14
16
18
aaa-028700
1
E
Figure 1. Logic symbol
19(P=Q) 1
0
G1
7
Q
0
7
2
4
6
8
11
13
15
17
3
5
7
9
12
14
16
18
aaa-028701
P
COMP
1
Figure 3. IEC logic symbol
aaa-028702
P7
Q7
P6
Q6
P5
Q5
P4
Q4
P3
P=Q
Q3
P2
Q2
P1
Q1
P0
Q0
E
Figure 2. Logic diagram
74HC688 All information provided in this document is subject to legal disclaimers. © Nexperia B.V. 2018. All rights reserved.
Product data sheet Rev. 3 — 4 July 2018
2 / 16
74HCB88 74H0683 74H0688 C) rm flflflflflflflflflfl \ flflflflflflflflflfl \ v u o 1 u o UUUUUUUUUU UUUUUUUUUU mmms nae-1723704 Table 2. Pin description E
Nexperia 74HC688
8-bit magnitude comparator
5 Pinning information
5.1 Pinning
74HC688
E VCC
P0 P=Q
Q0 Q7
P1 P7
Q1 Q6
P2 P6
Q2 Q5
P3 P5
Q3 Q4
GND P4
aaa-028703
1
2
3
4
5
6
7
8
9
10
12
11
14
13
16
15
18
17
20
19
Figure 4. Pin configuration SOT163-1 (SO20)
74HC688
aaa-028704
1
2
3
4
5
6
7
8
9
10
12
11
14
13
16
15
18
17
20
19
VCC
P=Q
Q7
P7
Q6
P6
Q5
P5
Q4
P4
E
P0
Q0
P1
Q1
P2
Q2
P3
Q3
GND
Figure 5. Pin configuration SOT339-1 (SSOP20)
and SOT360-1 (TSSOP20)
5.2 Pin description
Table 2.Pin description
Symbol Pin Description
E 1 enable input (active LOW)
P0, P1, P2, P3, P4, P5, P6, P7 2, 4, 6, 8, 11, 13, 15, 17 word P inputs
Q0, Q1, Q2, Q3, Q4, Q5, Q6, Q7 3, 5, 7, 9, 12, 14, 16, 18 word Q inputs
GND 10 ground (0 V)
P=Q 19 equal to output
VCC 20 supply voltage
6 Functional description
Table 3. Function table
H = HIGH voltage level; L = LOW voltage level; X = don’t care.
inputs output
data Pn, Qn E P=Q
P=Q L L
P>Q L H
P<Q L H
X H H
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Product data sheet Rev. 3 — 4 July 2018
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74H0688
Nexperia 74HC688
8-bit magnitude comparator
7 Limiting values
Table 4. Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V)
Symbol Parameter Conditions Min Max Unit
VCC supply voltage -0.5 +7 V
IIK input clamping current VI < -0.5 V or VI > VCC + 0.5 V [1] - ±20 mA
IOK output clamping current VO < -0.5 V or VO > VCC + 0.5 V [1] - ±20 mA
IOoutput current -0.5 V < VO < VCC + 0.5 V - ±25 mA
ICC supply current - 50 mA
IGND ground current -50 - mA
Tstg storage temperature -65 +150 °C
Ptot total power dissipation Tamb = -40 °C to +125 °C [2] - 500 mW
[1] The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
[2] For SO20 Packages: Ptot derates linearly with 8 mW/K above 70 °C.
For (T)SSOP20 Packages: Ptot derates linearly with 5.5 mW/K above 60 °C.
8 Recommended operating conditions
Table 5. Recommended operating conditions
Voltages are referenced to GND (ground = 0 V)
Symbol Parameter Conditions Min Typ Max Unit
VCC supply voltage 2.0 5.0 6.0 V
VIinput voltage 0 - VCC V
VOoutput voltage 0 - VCC V
Tamb ambient temperature -40 - +125 °C
VCC = 2.0 V - - 625 ns/V
VCC = 4.5 V - 1.67 139 ns/V
Δt/ΔV input transition rise and fall rate
VCC = 6.0 V - - 83 ns/V
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Product data sheet Rev. 3 — 4 July 2018
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74H0688
Nexperia 74HC688
8-bit magnitude comparator
9 Static characteristics
Table 6. Static characteristics
At recommended operating conditions; voltages are referenced to GND (ground = 0 V).
25 °C -40 °C to
+85 °C
-40 °C to
+125 °C
Symbol Parameter Conditions
Min Typ Max Min Max Min Max
Unit
VCC = 2.0 V 1.5 1.2 - 1.5 - 1.5 - V
VCC = 4.5 V 3.15 2.4 - 3.15 - 3.15 - V
VIH HIGH-level input
voltage
VCC = 6.0 V 4.2 3.2 - 4.2 - 4.2 - V
VCC = 2.0 V - 0.8 0.5 - 0.5 - 0.5 V
VCC = 4.5 V - 2.1 1.35 - 1.35 - 1.35 V
VIL LOW-level input
voltage
VCC = 6.0 V - 2.8 1.8 - 1.8 - 1.8 V
VI = VIH or VIL
IO = -20 μA; VCC = 2.0 V 1.9 2.0 - 1.9 - 1.9 - V
IO = -20 μA; VCC = 4.5 V 4.4 4.5 - 4.4 - 4.4 - V
IO = -20 μA; VCC = 6.0 V 5.9 6.0 - 5.9 - 5.9 - V
IO = -4.0 mA; VCC = 4.5 V 3.98 4.32 - 3.84 - 3.7 - V
VOH HIGH-level
output voltage
IO = -5.2 mA; VCC = 6.0 V 5.48 5.81 - 5.34 - 5.2 - V
VI = VIH or VIL
IO = 20 μA; VCC = 2.0 V - 0 0.1 - 0.1 - 0.1 V
IO = 20 μA; VCC = 4.5 V - 0 0.1 - 0.1 - 0.1 V
IO = 20 μA; VCC = 6.0 V - 0 0.1 - 0.1 - 0.1 V
IO = 4.0 mA; VCC = 4.5 V - 0.15 0.26 - 0.33 - 0.4 V
VOL LOW-level
output voltage
IO = 5.2 mA; VCC = 6.0 V - 0.16 0.26 - 0.33 - 0.4 V
IIinput leakage
current
VI = VCC or GND; VCC = 6.0 V - - ±0.1 - ±1 - ±1 μA
ICC supply current VI = VCC or GND; IO = 0 A;
VCC = 6.0 V
- - 8.0 - 80 - 160 μA
CIinput
capacitance
- 3.5 - - - - - pF
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Product data sheet Rev. 3 — 4 July 2018
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74H0688 enced to G Figure 3 Elieflqm E PE Figure 7 Figure 7
Nexperia 74HC688
8-bit magnitude comparator
10 Dynamic characteristics
Table 7. Dynamic characteristics
At recommended operating conditions; voltages are referenced to GND (ground = 0 V);
CL = 50 pF unless otherwise specified; for test circuit, see Figure 8
25 °C -40 °C to
+85 °C
-40 °C to
+125 °C
Symbol Parameter Conditions
Min Typ Max Min Max Min Max
Unit
Pn, Qn to P=Q; see Figure 6 [1]
VCC = 2.0 V - 55 170 - 215 - 255 ns
VCC = 4.5 V - 20 34 - 43 - 51 ns
VCC = 5.0 V; CL = 15 pF - 17 - - - - - ns
VCC = 6.0 V - 16 29 - 37 - 43 ns
E to P=Q; see Figure 7
VCC = 2.0 V - 28 120 - 150 - 180 ns
VCC = 4.5 V - 10 24 - 30 - 36 ns
VCC = 5.0 V; CL = 15 pF - 8 - - - - - ns
tpd propagation
delay
VCC = 6.0 V - 8 20 - 26 - 31 ns
see Figure 7 [2]
VCC = 2.0 V - 19 75 - 95 - 110 ns
VCC = 4.5 V - 7 15 - 19 - 22 ns
tttransition time
VCC = 6.0 V - 6 13 - 16 - 19 ns
CPD power
dissipation
capacitance
per package; VI = GND to VCC
[3] - 30 - - - - - pF
[1] tpd is the same as tPHL and tPLH.
[2] tt is the same as tTHL and tTLH.
[3] CPD is used to determine the dynamic power dissipation (PD in μW).
PD = CPD × VCC
2 × fi + Σ (CL × VCC
2 × fo) where:
fi = input frequency in MHz;
fo = output frequency in MHz;
Σ (CL × VCC
2 × fo) = sum of outputs;
CL = output load capacitance in pF;
VCC = supply voltage in V.
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Product data sheet Rev. 3 — 4 July 2018
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74HC688 v v v Fa mmmas Table 8 (PE v E v v P?) ass-0287M Table 8 (E 15:15 Table 8. Measurement points
Nexperia 74HC688
8-bit magnitude comparator
10.1 Waveforms and test circuit
aaa-028706
P=Q output
VOH
VOL
tPLH
tTHL tTLH
VX
VYVY
VX
tPHL
VMVM
Pn, Qn input
VI
GND
VMVM
Measurement points are given in Table 8.
VOL and VOH are typical voltage output levels that occur with the output load.
Figure 6. Waveforms showing the word inputs (Pn, Qn) to the equal to output (P=Q) propagation delays and the
output transition times.
aaa-028705
E input
VI
GND
P=Q output
VOH
VOL
tPLH
tTHL tTLH
VX
VYVY
VX
tPHL
VMVM
VMVM
Measurement points are given in Table 8.
VOL and VOH are typical voltage output levels that occur with the output load.
Figure 7. Waveforms showing the enable input (E) to the equal to output (P=Q) propagation delays and the output
transition times.
Table 8.Measurement points
Input Output
VIVMVMVXVY
GND to VCC 0.5VCC 0.5VCC 0.1VCC 0.9VCC
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Product data sheet Rev. 3 — 4 July 2018
7 / 16
74HC688 Table 9. Test data
Nexperia 74HC688
8-bit magnitude comparator
Test data is given in Table 9.
Definitions test circuit:
RT = Termination resistance should be equal to output impedance Zo of the pulse generator.
CL = Load capacitance including jig and probe capacitance.
Figure 8. Test circuit for measuring switching times
Table 9.Test data
Input Load
VItr, tfCL
Test
GND to VCC 6.0 ns 15 pF, 50 pF tPLH, tPHL
74HC688 All information provided in this document is subject to legal disclaimers. © Nexperia B.V. 2018. All rights reserved.
Product data sheet Rev. 3 — 4 July 2018
8 / 16
74H0688 cascaded i ure 9 'n “I—o LHHHHHHHH rm
Nexperia 74HC688
8-bit magnitude comparator
11 Application information
Two or more 74HC688 8-bit magnitude comparators may be cascaded to compare binary
or BCD numbers of more than 8 bits. An example is shown in Figure 9.
outputP=Q
74HC688
P0
Q0
aaa-028707
E
8 LSB
P=Q
74HC688
Pn-1
Qn-1
E
P=Q
74HC688
Pn
Qn
E
8 MSB
Figure 9. Binary or BCD comparator
74HC688 All information provided in this document is subject to legal disclaimers. © Nexperia B.V. 2018. All rights reserved.
Product data sheet Rev. 3 — 4 July 2018
9 / 16
74HC688 $020: plastic small outline package; 20 leads; body width 7.5 mm SOT163-1 ’ MM l,:J%%giy fiwmflflflflf 'H H WW H W S
Nexperia 74HC688
8-bit magnitude comparator
12 Package outline
UNIT A
max. A
1 A
2 A
3 b
p c D
(1) E
(1) (1)
e H
E L L
p Q Z
y w v θ
REFERENCES
OUTLINE
VERSION
EUROPEAN
PROJECTION ISSUE DATE
IEC JEDEC JEITA
mm
inches
2.65 0.3
0.1
2.45
2.25
0.49
0.36
0.32
0.23
13.0
12.6
7.6
7.4 1.27 10.65
10.00
1.1
1.0
0.9
0.4 8
0
o
o
0.25 0.1
DIMENSIONS (inch dimensions are derived from the original mm dimensions)
Note
1. Plastic or metal protrusions of 0.15 mm (0.006 inch) maximum per side are not included.
1.1
0.4
SOT163-1
10
20
w M
b
p
detail X
Z
e
11
1
D
y
0.25
075E04 MS-013
pin 1 index
0.1 0.012
0.004
0.096
0.089
0.019
0.014
0.013
0.009
0.51
0.49
0.30
0.29 0.05
1.4
0.055
0.419
0.394
0.043
0.039
0.035
0.016
0.01
0.25
0.01 0.004
0.043
0.016
0.01
0 5 10 mm
scale
X
θ
A
A
1
A
2
H
E
L
p
Q
E
c
L
v M A
(A )
3
A
SO20: plastic small outline package; 20 leads; body width 7.5 mm SOT163-1
99-12-27
03-02-19
Figure 10. Package outline SOT163-1 (SO20)
74HC688 All information provided in this document is subject to legal disclaimers. © Nexperia B.V. 2018. All rights reserved.
Product data sheet Rev. 3 — 4 July 2018
10 / 16
74HC688 SSOPZO: plastic shrink small outline package; 20 leads; body width 53 mm SOT339-1
Nexperia 74HC688
8-bit magnitude comparator
UNIT A
1 A
2 A
3 b
p c D
(1) E
(1) e H
E L L
p Q (1)
Z y w v θ
REFERENCES
OUTLINE
VERSION
EUROPEAN
PROJECTION ISSUE DATE
IEC JEDEC JEITA
mm 0.21
0.05
1.80
1.65
0.38
0.25
0.20
0.09
7.4
7.0
5.4
5.2 0.65 7.9
7.6
0.9
0.7
0.9
0.5
8
0
o
o
0.13 1.25 0.2 0.1
DIMENSIONS (mm are the original dimensions)
Note
1. Plastic or metal protrusions of 0.2 mm maximum per side are not included.
1.03
0.63
SOT339-1 MO-150 99-12-27
03-02-19
X
w M
θ
A
A
1
A
2
b
p
D
H
E
L
p
Q
detail X
E
Z
e
c
L
v M A
(A )
3
A
1 10
20 11
y
0.25
pin 1 index
0 2.5 5 mm
scale
SSOP20: plastic shrink small outline package; 20 leads; body width 5.3 mm SOT339-1
A
max.
2
Figure 11. Package outline SOT339-1 (SSOP20)
74HC688 All information provided in this document is subject to legal disclaimers. © Nexperia B.V. 2018. All rights reserved.
Product data sheet Rev. 3 — 4 July 2018
11 / 16
74HC688 TSSOPZO: plastic lhin shrink small outline package; 20 leads; body width 44 mm SOT360-1
Nexperia 74HC688
8-bit magnitude comparator
UNIT A
1 A
2 A
3 b
p c D
(1) E (2) (1)
e H
E L L
p Q Z y w v θ
REFERENCES
OUTLINE
VERSION
EUROPEAN
PROJECTION ISSUE DATE
IEC JEDEC JEITA
mm 0.15
0.05
0.95
0.80
0.30
0.19
0.2
0.1
6.6
6.4
4.5
4.3 0.65 6.6
6.2
0.4
0.3
0.5
0.2
8
0
o
o
0.13 0.1 0.2 1
DIMENSIONS (mm are the original dimensions)
Notes
1. Plastic or metal protrusions of 0.15 mm maximum per side are not included.
2. Plastic interlead protrusions of 0.25 mm maximum per side are not included.
0.75
0.50
SOT360-1 MO-153 99-12-27
03-02-19
w M
b
p
D
Z
e
0.25
1 10
20 11
pin 1 index
θ
A
A
1
A
2
L
p
Q
detail X
L
(A )
3
H
E
E
c
v M A
X
A
y
0 2.5 5 mm
scale
TSSOP20: plastic thin shrink small outline package; 20 leads; body width 4.4 mm SOT360-1
A
max.
1.1
Figure 12. Package outline SOT360-1 (TSSOP20)
74HC688 All information provided in this document is subject to legal disclaimers. © Nexperia B.V. 2018. All rights reserved.
Product data sheet Rev. 3 — 4 July 2018
12 / 16
74HC688 Table 10. Abbreviations Table 11. Revision history
Nexperia 74HC688
8-bit magnitude comparator
13 Abbreviations
Table 10.Abbreviations
Acronym Description
CMOS Complementary Metal-Oxide Semiconductor
DUT Device Under Test
ESD ElectroStatic Discharge
HBM Human Body Model
MM Machine Model
14 Revision history
Table 11.Revision history
Document ID Release date Data sheet status Change notice Supersedes
74HC688 v.3 20180704 Product data sheet - 74HC_HCT688 v.2
Modifications: The format of this data sheet has been redesigned to comply with the identity guidelines of
Nexperia.
Legal texts have been adapted to the new company name where appropriate.
Type numbers 74HC688N (SOT146-1), 74HCT688N (SOT146-1) and 74HCT688PW
(SOT360-1) removed.
74HC_HCT688 v.2 19901201 Product specification - 74HC_HCT688 v.1
74HC688 All information provided in this document is subject to legal disclaimers. © Nexperia B.V. 2018. All rights reserved.
Product data sheet Rev. 3 — 4 July 2018
13 / 16
74H0688 Inns 0. dacumenl was p 0am
Nexperia 74HC688
8-bit magnitude comparator
15 Legal information
15.1 Data sheet status
Document status[1][2] Product status[3] Definition
Objective [short] data sheet Development This document contains data from the objective specification for product
development.
Preliminary [short] data sheet Qualification This document contains data from the preliminary specification.
Product [short] data sheet Production This document contains the product specification.
[1] Please consult the most recently issued document before initiating or completing a design.
[2] The term 'short data sheet' is explained in section "Definitions".
[3] The product status of device(s) described in this document may have changed since this document was published and may differ in case of multiple
devices. The latest product status information is available on the Internet at URL http://www.nexperia.com.
15.2 Definitions
Draft — The document is a draft version only. The content is still under
internal review and subject to formal approval, which may result in
modifications or additions. Nexperia does not give any representations or
warranties as to the accuracy or completeness of information included herein
and shall have no liability for the consequences of use of such information.
Short data sheet — A short data sheet is an extract from a full data sheet
with the same product type number(s) and title. A short data sheet is
intended for quick reference only and should not be relied upon to contain
detailed and full information. For detailed and full information see the
relevant full data sheet, which is available on request via the local Nexperia
sales office. In case of any inconsistency or conflict with the short data sheet,
the full data sheet shall prevail.
Product specification — The information and data provided in a Product
data sheet shall define the specification of the product as agreed between
Nexperia and its customer, unless Nexperia and customer have explicitly
agreed otherwise in writing. In no event however, shall an agreement be
valid in which the Nexperia product is deemed to offer functions and qualities
beyond those described in the Product data sheet.
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Limited warranty and liability — Information in this document is believed
to be accurate and reliable. However, Nexperia does not give any
representations or warranties, expressed or implied, as to the accuracy
or completeness of such information and shall have no liability for the
consequences of use of such information. Nexperia takes no responsibility
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customer might incur for any reason whatsoever, Nexperia's aggregate and
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Right to make changes — Nexperia reserves the right to make changes
to information published in this document, including without limitation
specifications and product descriptions, at any time and without notice. This
document supersedes and replaces all information supplied prior to the
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Suitability for use — Nexperia products are not designed, authorized or
warranted to be suitable for use in life support, life-critical or safety-critical
systems or equipment, nor in applications where failure or malfunction
of an Nexperia product can reasonably be expected to result in personal
injury, death or severe property or environmental damage. Nexperia and its
suppliers accept no liability for inclusion and/or use of Nexperia products in
such equipment or applications and therefore such inclusion and/or use is at
the customer’s own risk.
Applications — Applications that are described herein for any of these
products are for illustrative purposes only. Nexperia makes no representation
or warranty that such applications will be suitable for the specified use
without further testing or modification. Customers are responsible for the
design and operation of their applications and products using Nexperia
products, and Nexperia accepts no liability for any assistance with
applications or customer product design. It is customer’s sole responsibility
to determine whether the Nexperia product is suitable and fit for the
customer’s applications and products planned, as well as for the planned
application and use of customer’s third party customer(s). Customers should
provide appropriate design and operating safeguards to minimize the risks
associated with their applications and products. Nexperia does not accept
any liability related to any default, damage, costs or problem which is based
on any weakness or default in the customer’s applications or products, or
the application or use by customer’s third party customer(s). Customer is
responsible for doing all necessary testing for the customer’s applications
and products using Nexperia products in order to avoid a default of the
applications and the products or of the application or use by customer’s third
party customer(s). Nexperia does not accept any liability in this respect.
Limiting values — Stress above one or more limiting values (as defined in
the Absolute Maximum Ratings System of IEC 60134) will cause permanent
damage to the device. Limiting values are stress ratings only and (proper)
operation of the device at these or any other conditions above those
given in the Recommended operating conditions section (if present) or the
Characteristics sections of this document is not warranted. Constant or
repeated exposure to limiting values will permanently and irreversibly affect
the quality and reliability of the device.
Terms and conditions of commercial sale — Nexperia products are
sold subject to the general terms and conditions of commercial sale, as
published at http://www.nexperia.com/profile/terms, unless otherwise agreed
in a valid written individual agreement. In case an individual agreement is
concluded only the terms and conditions of the respective agreement shall
apply. Nexperia hereby expressly objects to applying the customer’s general
terms and conditions with regard to the purchase of Nexperia products by
customer.
No offer to sell or license — Nothing in this document may be interpreted
or construed as an offer to sell products that is open for acceptance or
the grant, conveyance or implication of any license under any copyrights,
patents or other industrial or intellectual property rights.
Export control — This document as well as the item(s) described herein
may be subject to export control regulations. Export might require a prior
authorization from competent authorities.
74HC688 All information provided in this document is subject to legal disclaimers. © Nexperia B.V. 2018. All rights reserved.
Product data sheet Rev. 3 — 4 July 2018
14 / 16
74HC688
Nexperia 74HC688
8-bit magnitude comparator
Non-automotive qualified products — Unless this data sheet expressly
states that this specific Nexperia product is automotive qualified, the
product is not suitable for automotive use. It is neither qualified nor tested in
accordance with automotive testing or application requirements. Nexperia
accepts no liability for inclusion and/or use of non-automotive qualified
products in automotive equipment or applications. In the event that customer
uses the product for design-in and use in automotive applications to
automotive specifications and standards, customer (a) shall use the product
without Nexperia's warranty of the product for such automotive applications,
use and specifications, and (b) whenever customer uses the product for
automotive applications beyond Nexperia's specifications such use shall be
solely at customer’s own risk, and (c) customer fully indemnifies Nexperia
for any liability, damages or failed product claims resulting from customer
design and use of the product for automotive applications beyond Nexperia's
standard warranty and Nexperia's product specifications.
Translations — A non-English (translated) version of a document is for
reference only. The English version shall prevail in case of any discrepancy
between the translated and English versions.
15.4 Trademarks
Notice: All referenced brands, product names, service names and
trademarks are the property of their respective owners.
74HC688 All information provided in this document is subject to legal disclaimers. © Nexperia B.V. 2018. All rights reserved.
Product data sheet Rev. 3 — 4 July 2018
15 / 16
74HC688
Nexperia 74HC688
8-bit magnitude comparator
Contents
1 General description ............................................ 1
2 Features and benefits .........................................1
3 Ordering information .......................................... 1
4 Functional diagram ............................................. 2
5 Pinning information ............................................ 3
5.1 Pinning ...............................................................3
5.2 Pin description ................................................... 3
6 Functional description ........................................3
7 Limiting values ....................................................4
8 Recommended operating conditions ................ 4
9 Static characteristics .......................................... 5
10 Dynamic characteristics .....................................6
10.1 Waveforms and test circuit ................................ 7
11 Application information ......................................9
12 Package outline .................................................10
13 Abbreviations .................................................... 13
14 Revision history ................................................ 13
15 Legal information .............................................. 14
Please be aware that important notices concerning this document and the product(s)
described herein, have been included in section 'Legal information'.
© Nexperia B.V. 2018. All rights reserved.
For more information, please visit: http://www.nexperia.com
For sales office addresses, please send an email to: salesaddresses@nexperia.com
Date of release: 4 July 2018
Document identifier: 74HC688

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