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PI5C3257L Datasheet(PDF) 1 Page - Pericom Semiconductor Corporation

Part # PI5C3257L
Description  Quad 2 1 Mux/DeMux BusSwitch
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Manufacturer  PERICOM [Pericom Semiconductor Corporation]
Direct Link  http://www.pericom.com
Logo PERICOM - Pericom Semiconductor Corporation

PI5C3257L Datasheet(HTML) 1 Page - Pericom Semiconductor Corporation

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1
PS7018G
11/04/06
Description
Pericom Semiconductor’s PI5C3257 is a Quad 2:1 multiplexer/
demultiplexer with three-state outputs that is pinout and function
compatiblewiththePI74FCT257T,74F257,and74ALS/AS/LS257.
Inputs can be connected to outputs with low On-Resistance (5Ω)
with no additional ground bounce noise or propagation delay.
Block Diagram
PI5C3257
Quad 2:1 Mux/DeMux BusSwitch
Features:
• Near-Zero propagation delay
• 5Ω switches connect inputs to outputs
• Direct bus connection when switches are ON
• Ultra Low Quiescent Power (0.2µA typical)
– Ideally suited for notebook applications
• Pin compatible with 74 series 257 logic devices
• Packaging (Pb-free & Green available):
– 16-pin 150-mil wide plastic QSOP (Q)
– 16-pin 300-mil wide plastic SOIC (S)
– 16-pin 150-mil wide plastic SOIC (W)
– 16-pin 173-mil wide plasticTSSOP (L)
Pin Configuration
Truth Table(1)
E
S
YA
YB
YC
YD
Function
H
X
Hi-Z Hi-Z Hi-Z Hi-Z
Disable
L
L
IA0
IB0
IC0
ID0
S = 0
L
H
IA1
IB1
IC1
ID1
S = 1
Note:
1. H = High Voltage Level, L = Low Voltage Level
E
IA0 IA1 IB0 IB1 IC0 IC1 ID0 ID1
S
YA
YB
YC
YD
VCC
S
1
E
IA0
2
ID0
IA1
3
ID1
YA
4
YD
IB0
5
16
IC0
IB1
6
15
IC1
YB
7
14
YC
8
13
12
GND
11
10
9
Pin Description
Pin Name
Description
IAn-IDn
Data Inputs
S
Select Inputs
E
Enable
YA-YD
Data Outputs
GND
Ground
VCC
Power
06-0240


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