M74HCT688M1R STMicroelectronics, M74HCT688M1R Datasheet

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M74HCT688M1R

Manufacturer Part Number
M74HCT688M1R
Description
Manufacturer
STMicroelectronics
Type
Identity Comparatorr
Datasheet

Specifications of M74HCT688M1R

Logic Family
HCT
Technology
CMOS
High Level Output Current
-4mA
Low Level Output Current
4mA
Output Function
A=B
Package Type
SOP
Quiescent Current
4uA
Mounting
Surface Mount
Pin Count
20
Polarity
Inverting
Operating Supply Voltage (typ)
5V
Operating Supply Voltage (max)
5.5V
Operating Supply Voltage (min)
4.5V
Operating Temperature (max)
125C
Operating Temperature (min)
-55
Operating Temperature Classification
Military
Number Of Bits
8
Lead Free Status / RoHS Status
Not Compliant

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Part Number:
M74HCT688M1R
Manufacturer:
ST
0
DESCRIPTION
The M74HCT688 is an high speed CMOS 8 BIT
EQUALITY COMPARATOR fabricated with silicon
gate C
The M74HCT688 compares bit for bit two 8-bit
words applied on inputs P0 - P7 and inputs Q0 -
Q7 and indicates whether or not they are equal. A
single active low enable is provided to facilitate
PIN CONNECTION AND IEC LOGIC SYMBOLS
September 2001
HIGH SPEED:
t
LOW POWER DISSIPATION:
I
COMPATIBLE WITH TTL OUTPUTS :
V
SYMMETRICAL OUTPUT IMPEDANCE:
|I
BALANCED PROPAGATION DELAYS:
t
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 688
PD
CC
PLH
OH
IH
= 21ns (TYP.) at V
= 4 A(MAX.) at T
= 2V (MIN.) V
| = I
2
MOS technology.
t
PHL
OL
= 4mA (MIN)
IL
= 0.8V (MAX)
A
CC
=25°C
= 4.5V
8 BIT EQUALITY COMPARATOR
ORDER CODES
cascading
comparison of words greater than 8 bits.
All inputs are equipped with protection circuits
against static discharge and transient excess
voltage.
PACKAGE
TSSOP
SOP
DIP
DIP
M74HCT688M1R M74HCT688RM13TR
M74HCT688B1R
several
TUBE
M74HCT688
packages
SOP
M74HCT688TTR
T & R
to
TSSOP
enable
1/9

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M74HCT688M1R Summary of contents

Page 1

... September 2001 M74HCT688 8 BIT EQUALITY COMPARATOR DIP SOP ORDER CODES PACKAGE TUBE DIP M74HCT688B1R SOP M74HCT688M1R M74HCT688RM13TR TSSOP cascading several packages comparison of words greater than 8 bits. All inputs are equipped with protection circuits against static discharge and transient excess voltage. TSSOP T & R ...

Page 2

M74HCT688 INPUT AND OUTPUT EQUIVALENT CIRCUIT TRUTH TABLE <> Don’t Care LOGIC DIAGRAM This logic diagram has not be used to estimate propagation delays 2/9 PIN DESCRIPTION PIN ...

Page 3

ABSOLUTE MAXIMUM RATINGS Symbol V Supply Voltage Input Voltage Output Voltage Input Diode Current Output Diode Current Output Current ...

Page 4

M74HCT688 AC ELECTRICAL CHARACTERISTICS (C Symbol Parameter V ( Output Transition TLH THL 4.5 Time t t Propagation Delay PLH PHL Time 4.5 (Pn P= Propagation Delay PLH PHL Time 4 P=Q) ...

Page 5

WAVEFORM : PROPAGATION DELAY TIME (f=1MHz; 50% duty cycle) M74HCT688 5/9 ...

Page 6

M74HCT688 DIM. MIN. a1 0.254 B 1. 6/9 Plastic DIP-20 (0.25) MECHANICAL DATA mm. TYP MAX. 1.65 0.45 0.25 25.4 8.5 2.54 22.86 7.1 3.93 3.3 1.34 inch MIN. TYP. ...

Page 7

SO-20 MECHANICAL DATA mm. DIM. MIN. TYP 0.35 b1 0. 12.60 E 10.00 e 1.27 e3 11.43 F 7. inch MAX. MIN. TYP. 2.65 0.2 0.004 2.45 ...

Page 8

M74HCT688 DIM. MIN 0.05 A2 0.8 b 0.19 c 0.09 D 6.4 E 6 0° PIN 1 IDENTIFICATION 1 8/9 TSSOP20 MECHANICAL DATA mm. TYP MAX. 1.2 0.15 ...

Page 9

... No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied ...

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