HD74HCT688FPEL Renesas Electronics Corporation., HD74HCT688FPEL Datasheet

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HD74HCT688FPEL

Manufacturer Part Number
HD74HCT688FPEL
Description
Manufacturer
Renesas Electronics Corporation.
Datasheet
HD74HCT688
8-bit Magnitude Comparator
Description
The HD74HCT688 compares bit for bit two 8-bit words and indicates whether or not they are equal. The P=Q output
indicates equality when it is low.
A single active low enable is provided to facilitate cascading of several packages and enable comparison of words
greater than 8-bits.
This device is useful in memory block decoding applications, where memory block enable signals must be generated
from computer address information.
Features
Function Table
H :
L :
X :
Rev.2.00, Mar 30, 2006 page 1 of 7
HD74HCT688P
HD74HCT688FPEL
HD74HCT688RPEL
LSTTL Output Logic Level Compatibility as well as CMOS Output Compatibility
High Speed Operation: t
High Output Current: Fanout of 10 LSTTL Loads
Wide Operating Voltage: V
Low Input Current: 1 µA max
Low Quiescent Supply Current: I
Ordering Information
Part Name
high level
low level
irrelevant
Data P, Q
P=Q
P>Q
P<Q
X
DILP-20 pin (JEDEC)
SOP-20 pin (JEITA)
SOP-20 pin (JEDEC)
pd
Package Type
(Data to P=Q) = 18 ns typ (C
CC
= 4.5 to 5.5 V
Input
CC
(static) = 4 µA max (Ta = 25°C)
PRDP0020AC-B
(DP-20NEV)
PRSP0020DD-B
(FP-20DAV)
PRSP0020DC-A
(FP-20DBV)
(Previous Code)
Package Code
Enable G
H
L
L
L
L
= 50 pF)
P
FP
RP
Abbreviation
Package
(Previous ADE-205-563)
EL (2,000 pcs/reel)
EL (1,000 pcs/reel)
Output P=Q
Taping Abbreviation
REJ03D0673–0200
H
H
H
L
(Quantity)
Mar 30, 2006
Rev.2.00

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HD74HCT688FPEL Summary of contents

Page 1

... High Output Current: Fanout of 10 LSTTL Loads Wide Operating Voltage 4 Low Input Current: 1 µA max Low Quiescent Supply Current: I Ordering Information Part Name Package Type HD74HCT688P DILP-20 pin (JEDEC) HD74HCT688FPEL SOP-20 pin (JEITA) HD74HCT688RPEL SOP-20 pin (JEDEC) Function Table Data P, Q P=Q P>Q P< ...

Page 2

HD74HCT688 Pin Arrangement Rev.2.00, Mar 30, 2006 page ...

Page 3

HD74HCT688 Logic Diagram Absolute Maximum Ratings Item ...

Page 4

HD74HCT688 Recommended Operating Conditions Item Supply voltage Input / Output voltage Operating temperature *1 Input rise / fall time Notes: 1. This item guarantees maximum limit when one input switches. Waveform: Refer to test circuit of switching characteristics. Electrical Characteristics ...

Page 5

HD74HCT688 Waveforms • Waveform – P=Q • Waveform – P=Q Notes : 1. Input waveform : PRR ≤ 1 MHz, duty cycle 50%, t Rev.2.00, Mar 30, 2006 page ...

Page 6

HD74HCT688 Package Dimensions JEITA Package Code RENESAS Code P-DIP20-6.3x24.5-2.54 PRDP0020AC 0. JEITA Package Code RENESAS Code P-SOP20-7.5x12.8-1.27 PRSP0020DC Index mark Rev.2.00, Mar 30, 2006 page Previous Code ...

Page 7

HD74HCT688 JEITA Package Code RENESAS Code P-SOP20-5.5x12.6-1.27 PRSP0020DD Index mark Rev.2.00, Mar 30, 2006 page Previous Code MASS[Typ.] FP-20DAV 0.31g NOTE) 1. ...

Page 8

Keep safety first in your circuit designs! 1. Renesas Technology Corp. puts the maximum effort into making semiconductor products better and more reliable, but there is always the possibility that trouble may occur with them. Trouble with semiconductors may lead ...

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