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參數資料
| 型號： | SN54F521J |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 算術邏輯單元 |
| 英文描述： | F/FAST SERIES, 8-BIT IDENTITY COMPARATOR, INVERTED OUTPUT, CDIP20 |
| 封裝： | 0.300 INCH, CERAMIC, DIP-20 |
| 文件頁數： | 1/16頁 |
| 文件大?。?/td> | 669K |
| 代理商： | SN54F521J |
SN54F521, SN74F521
8BIT IDENTITY COMPARATORS
SDFS091 MARCH 1987 REVISED OCTOBER 1993
Copyright
1993, Texas Instruments Incorporated
21
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 772511443
Compares Two 8-Bit Words
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 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
OUTPUT
P, Q
OE
OUTPUT
P = Q
P = Q
L
P
≠ Q
XH
X
H
logic symbol
COMP
0
2
P0
4
P1
6
P2
8
P3
1
19
1P = Q
11
P4
13
P5
15
P6
7
17
P7
0
3
Q0
5
Q1
7
Q2
9
Q3
12
Q4
14
Q5
16
Q6
7
18
Q7
P
Q
OE
P = Q
This symbol is in accordance with ANSI/IEEE Std 91-1984 and
IEC Publication 617-12.
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
OE
P0
Q0
P1
Q1
P2
Q2
P3
Q3
GND
VCC
P = Q
Q7
P7
Q6
P6
Q5
P5
Q4
P4
SN54F521 ...J PACKAGE
SN74F521 . . . DW OR N PACKAGE
(TOP VIEW)
3
2
1 20 19
9 10 11 12 13
4
5
6
7
8
18
17
16
15
14
Q7
P7
Q6
P6
Q5
P1
Q1
P2
Q2
P3
SN54F521 . . . FK PACKAGE
(TOP VIEW)
Q0
P0
OE
Q4
P5
P
=
Q
Q3
G
ND
P4
V
CC
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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