SN54F521
SN54F521 is 8-Bit Identity Comparators manufactured by Texas Instruments.
description
These identity parators perform parisons on two 8-bit binary or BCD words. They provide P = Q outputs.
The SN54F521 is characterized for operation over the full military temperature range of
- 55°C to 125°C. The SN74F521 is characterized for operation from 0°C to 70°C.
FUNCTION TABLE
INPUTS P, Q OE
OUTPUT P=Q
P=Q L
P≠Q X
H logic symbol†
OE 2
P0 4
P1 6
P2 8
P3 11
P4 13
P5 15
P6 17
P7 3
Q0 5
Q1 7
Q2 9
Q3 12
Q4 14
Q5 16
Q6 18
Q7
P 0
7 1P = Q
19 P=Q
† This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
Q3 GND
P4 Q4...
