PI5C3257L Datasheet, PDF (1/6 Pages) Pericom Semiconductor Corporation – Quad 2 1 Mux/DeMux BusSwitch

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)
Description
Pericom Semiconductor’s PI5C3257 is a Quad 2:1 multiplexer/
demultiplexer with three-state outputs that is pinout and function
compatible with the PI74FCT257T, 74F257, and 74ALS/AS/LS257.
Inputs can be connected to outputs with low On-Resistance (5Ω)
with no additional ground bounce noise or propagation delay.
Block Diagram
Pin Configuration
IA0 IA1 IB0 IB1 IC0 IC1 ID0 ID1
E
S
YA
YB
YC
YD
S
1
IA0
2
IA1
3
YA
4
IB0
5
IB1
6
YB
7
GND
8
16
VCC
15
E
14
ID0
13
ID1
12
YD
11
IC0
10
IC1
9
YC
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
Pin Description
Pin Name
Description
IAn-IDn Data Inputs
S
Select Inputs
E
Enable
YA-YD
Data Outputs
GND
Ground
V_CC
Power
06-0240
1
PS7018G
11/04/06