74ACT11521 Datasheet, PDF (1/5 Pages) Texas Instruments – 8-BIT IDENTITY COMPARATORS

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• Compares Two 8-Bit Words
• Inputs Are TTL-Voltage Compatible
• Flow-Through Architecture Optimizes
PCB Layout
• Center-Pin V_CC and GND Configurations
Minimize High-Speed Switching Noise
• EPICt (Enhanced-Performance Implanted
CMOS) 1-mm Process
• 500-mA Typical Latch-Up Immunity
at 125°C
• Package Options Include Plastic Small-
Outline Packages, Plastic Shrink
Small-Outline Packages, Ceramic Chip
Carriers, and Standard Plastic and Ceramic
300-mil DIPs
description
These identity comparators perform comparisons
on two 8-bit binary or BCD words. Also included
is a P = Q totem-pole output.
The 54ACT11521 is characterized for operation
over the full military temperature range of − 55°C
to 125°C. The 74ACT11521 is characterized for
operation from − 40°C to 85°C.
FUNCTION TABLE
INPUTS
DATA
P, Q
ENABLE
G
P=Q
L
OUTPUT
P=Q
L
P>Q
L
H
P<Q
L
H
X
H
H
54ACT11521, 74ACT11521
8ĆBIT IDENTITY COMPARATORS
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SCAS023A − D2957, JULY 1978 − REVISED APRIL 1993
54ACT11521 . . . J PACKAGE
74ACT11521 . . . DB, DW OR N PACKAGE
(TOP VIEW)
Q1 ₁
P1 ₂
Q0 3
P0 4
GND 5
P=Q 6
G7 7
P7 8
Q6 9
P6 10
20 ^G
19 ^P2
18 Q2
17 P3
16 G3
15 V_CC
14 P4
13 Q4
12 P5
11 Q5
54ACT11521 . . . FK PACKAGE
(TOP VIEW)
P2
3 2 1 20 19
4
18
Q4
G₅
17 ^P5
Q1 6
16 Q5
P1 7
15 P6
Q0 8
14 Q6
9 10 11 12 13
EPIC is a trademark of Texas Instruments Incorporated.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
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Copyright  1993, Texas Instruments Incorporated
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