PI5C3125C 查看數據表（PDF） - Pericom Semiconductor

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PI5C3125C

4-Bit Bus Switch with Individual Enables

Pericom Semiconductor 

PI5C3125C

PI5C3126C

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4-Bit BusSwitch with

–2V Undershoot Protection

Product Features

• RON is 5ohm typical

• Undershoot protection on A port only: –2V

• Direct bus connection when switches are ON

• Industrial Operation Temperature: –40°C to +85°C

• Near zero propagation delay

• Low Channel ON Capacitance: 14pF max.

• Packages available:

– 14-pin 173 mil wide plastic TSSOP (L)

– 14-pin 150 mil wide plastic SOIC (W)

– 16-pin 150 mil wide plastic QSOP (Q)

Applications

• PCI Hot Plugging for live insertion

• Memory bank sharing

Product Description

Pericom Semiconductor’s PI5C series of logic circuits are produced

using the Company’s advanced submicron CMOS technology,

achieving industry leading performance.

The PI5C3125C and PI5C3126C are 5V, 4-bit, 2-port bus switches.

They are intended for PCI Hot-Plug applications. Industry leading

advantages include a propagation delay of 250ps, resulting from its

5-ohm channel resistance and low I/O capacitance. The A-ports

switch data to B outputs and are bidirectional. The PI5C3125C

device has active LOW enables, and the PI5C3126C has active HIGH

enables.

The A-port can handle up to –2V undershoot when the switch is

disabled.

PI5C3125C Logic Block Diagram

A0

B0

BE0

A1

B1

BE1

A2

B2

BE2

A3

B3

BE3

PI5C3126C Logic Block Diagram

A0

B0

BE0

A1

B1

BE1

A2

B2

BE2

A3

B3

BE3

1

PS8512 03/14/01

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