參數(shù)資料
型號: PI74FCT2257T
廠商: Pericom Semiconductor Corp.
英文描述: Fast CMOS Quad 2-Input Multiplexer
中文描述: 快速CMOS四路2輸入多路復(fù)用器
文件頁數(shù): 2/5頁
文件大?。?/td> 50K
代理商: PI74FCT2257T
2
PS2010A 03/09/96
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PI74FCT157T/257T
(25
Series)PI74FCT2157T/2257T
QUAD 2-INPUT MULTIPLEXER
PI74FCT157/2157T Product Pin Configuration
PI74FCT257/2257T Product Pin Configuration
Inputs
Outputs Z
N
157/2157 257/2257
L
L
H
L
H
E/OE
H
L
L
L
L
S
X
H
H
L
L
I
0
X
X
X
L
H
I
1
X
L
H
X
X
Z
L
H
L
H
Truth Table
(1)
NOTE:
1.
H = High Voltage Level
X = Don't Care
L = Low Voltage Level
Z = High Impedance
Product Pin Description
Pin Name
I
0
A-I
0
D
I
1
A-I
1
D
E
OE
S
Z
A
-Z
D
GND
V
CC
Description
Source 0 Data Inputs
Source 1 Data Inputs
Enable Input (Active LOW) FCT157/2157
Output Enable (Active LOW) FCT257/2257
Select Input
Outputs
Ground
Power
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
S
I
0
A
I
1
A
Z
A
I
0
B
I
1
B
Z
B
GND
Vcc
E
I
0
C
I
1
C
Z
C
I
0
D
I
1
D
Z
D
16-PIN
Q16
S16
W16
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
S
I
0
A
I
1
A
Z
A
I
0
B
I
1
B
Z
B
GND
Vcc
OE
I
0
C
I
1
C
Z
C
I
0
D
I
1
D
Z
D
16-PIN
Q16
S16
W16
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