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PDF PI5C3251 Datasheet ( Hoja de datos )

Número de pieza PI5C3251
Descripción 8:1 Mux/DeMux BusSwitch
Fabricantes Pericom Semiconductor 
Logotipo Pericom Semiconductor Logotipo

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PI5C3251 Hoja de datos, Descripción, Manual
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 251 logic devices
• Packaging (Pb-free & Green available):
– 16-pin 150-mil wide plastic QSOP (Q)
PI5C3251
8:1 Mux/DeMux BusSwitch 1
Description:
Pericom Semiconductor’s PI5C3251 is a Dual 8:1 Multiplexer/
Demultiplexer with three-state outputs that is pinout compatible
with the PI74FCT251T, 74F251, and 74ALS/AS/LS 251. Inputs
can be connected to outputs with low on resistance (5Ω) with no
additional ground bounce noise or propagation delay.
2
3
4
5
Block Diagram
Pin Configuration
I0 I1 I2 I3 I4 I5 I6 I7
E
S0
S1
S2
Y
I3
I2
I1
I0
Y
NC
E
GND
1
2
3
4
5
6
7
8
16 VCC
15 I4
14 I5
13 I6
12 I7
11 S0
10 S1
9 S2
Truth Table(1)
Select
E S2 S1 S0 Y
Function
H X X X Hi-Z
Disable
L L L L I0
S2-0 = 0
L L L H I1
S2-0 = 1
L L H L I2
S2-0 = 2
L L H H I3
S2-0 = 3
L H L L I4
S2-0 = 4
L H L H I5
S2-0 = 5
L H H L I6
S2-0 = 6
L H H H I7
S2-0 = 7
Note:
1. H = High Voltage Level, L = Low Voltage Level
11-0009
Pin Description
Pin Name
Description
I07 Data Inputs
S02
Select Inputs
E Enable
Y Data Outputs
GND
Ground
VCC Power
1
6
7
8
9
10
11
12
13
14
15
01/11/10

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