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參數(shù)資料
| 型號： | 933653910602 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 算術(shù)邏輯單元 |
| 英文描述： | F/FAST SERIES, 8-BIT IDENTITY COMPARATOR, INVERTED OUTPUT, PDIP20 |
| 封裝： | 0.300 INCH, PLASTIC, SOT-146-1, DIP-20 |
| 文件頁數(shù)： | 3/8頁 |
| 文件大?。?/td> | 89K |
| 代理商： | 933653910602 |
Philips Semiconductors
Product specification
74F521
8-bit identity comparator
May 15, 1990
3
LOGIC DIAGRAM
VCC = Pin 20
GND = Pin 10
SF00276
19
QA=B
2
3
4
5
6
7
8
9
11
12
13
14
15
16
17
18
1
A0
B0
A1
B1
A2
B2
A3
B3
A4
B4
A5
B5
A6
B6
A7
B7
IA=B
FUNCTION TABLE
INPUTS
OUTPUT
IA=B
A, B
QA=B
L
A=B*
L
A
≠B
H
A=B*
H
A
≠B
H
H = High voltage level
L = Low voltage level
X = Don’t care
*
A0=B0, A1=B1, A2=B2, etc.
APPLICATIONS
IA=B
SF00277
A16
B16
A23
B23
QA=B
IA=B
A8
B8
A15
B15
QA=B
IA=B
A0
B0
A7
B7
QA=B
PARALLEL EXPANSION
IA=B
A16
B16
A23
B23
QA=B
IA=B
A8
B8
A15
B15
QA=B
IA=B
A0
B0
A7
B7
QA=B
ENABLE
LOW
ENABLE
LOW
RIPPLE EXPANSION
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