參數(shù)資料
型號: PI5C3244QE
廠商: Pericom Semiconductor Corp.
英文描述: 8-Bit, 2-Port Switch
中文描述: 8位,2端口交換機(jī)
文件頁數(shù): 1/5頁
文件大?。?/td> 148K
代理商: PI5C3244QE
1
PS7014C 09/2804
Description:
Pericom Semiconductor’s PI5C3244 features a set of eight bus
switches which is pinout and function compatible with the
PI74FCT244T, 74F244, and 74ALS/AS/LS 244 8-bit drivers. Two
enable signals (BEn) turn the switches on similar to the enable
signals of the 244. The bus switch creates no additional propagation
delay or ground bounce noise.
BE
1
H
L
H
L
BE
2
H
H
L
L
1A, 1B
Disconnect
1A = 1B
Disconnect
1A = 1B
2A, 2B
Disconnect
Disconnect
2A = 2B
2A = 2B
Truth Table
(1)
Block Diagram
Pin Description
Pin Name
BEn
A
0
-A
3
B
0
-B
3
GND
V
CC
Description
Bus Output Enable (Active LOW)
Bus A
Bus B
Ground
Power
Pin Configuration
PI5C3244
12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012
12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012
Features:
Near-Zero propagation delay
5-ohm switches connect inputs to outputs when enabled
Direct bus connection when switches are ON
Ultra Low Quiescent Power (0.2μA Typical)
– Ideally suited for notebook applications
Pin compatible with 74 Series 244 logic devices
Packaging (Pb-free & Green available):
– 20-pin 173-mil wide plastic TSSOP (L)
– 20-pin 150-mil wide plastic QSOP (Q)
– 20-pin 300-mil wide plastic SOIC (S)
Note:
1. H = High Voltage Level
L = Low Voltage Level
1B
0
1A
0
1B
1
1A
1
1B
2
1A
2
1B
3
1A
3
BE
1
2B
0
2A
0
2B
1
2A
1
2B
2
2A
2
2B
3
2A
3
BE
2
V
CC
BE
2
1
B
0
2
A
3
1
B
1
2
A
2
1
B
2
2
A
1
1
B
3
2
A
0
BE
1
1
A
0
2
B
3
1
A
1
2
B
2
1
A
2
2
B
1
1
A
3
2
B
0
GND
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
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PI5C3244S2 制造商:Pericom Semiconductor Corporation 功能描述:PI5C3244S2
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