SN54F520_08 Datasheet, PDF (1/5 Pages) Texas Instruments – 8-BIT IDENTITY COMPARATORS

• Compares Two 8-Bit Words
• 20-kΩ Pullup Resistors on Q Inputs
• Package Options Include Plastic
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. They provide
P = Q outputs. The ′F520 features 20-kΩ pullup
termination resistors on the Q inputs for analog or
switch data.
The SN54F520 is characterized for operation over
the full military temperature range of − 55°C to
125°C. The SN74F520 is characterized for
operation from 0°C to 70°C.
FUNCTION TABLE
INPUTS
P, Q OE
OUTPUT
P=Q
P=Q L
L
P≠Q X
H
X
H
H
logic symbol^†
1
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
COMP
0
P
7
1P = Q
0
Q
7
SN54F520, SN74F520
8ĆBIT IDENTITY COMPARATORS
ą
SDFS081A − MARCH 1987 − REVISED OCTOBER 1993
SN54F520 . . . J PACKAGE
SN74F520 . . . DW OR N PACKAGE
(TOP VIEW)
OE ₁
P0 ₂
Q0 3
P1 4
Q1 5
P2 6
Q2 7
P3 8
Q3 9
GND 10
20 ^V_CC
19 ^{P = Q}
18 Q7
17 P7
16 Q6
15 P6
14 Q5
13 P5
12 Q4
11 P4
SN54F520 . . . FK PACKAGE
(TOP VIEW)
P1
3 2 1 20 19
4
18
Q7
Q1 ₅
17 ^P7
P2 6
16 Q6
Q2 7
15 P6
P3 8
14 Q5
9 10 11 12 13
19
P=Q
† _{This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.}
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.
Copyright  1993, Texas Instruments Incorporated
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