2

09/16/99

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Application Brief AB-32

Figure 2. PI3B16226 Block Diagram

Pericom has recently introduced several bus switch products for

DIMM switching in computer, networking and multi-media applica-

tions with configuration up to 32 bits. It should be noted that ultra-

low quiescent power (0.2

µA typically) makes these products ide-

ally suited for notebook application. A detail of these products and

their compatibility to standard chipsets is shown in Figure 3.

Figure 3. Pericom’s DIMM Switching Bus Switch Selection Guide

12B

12B

12A

SF

1A

1B

1B

Pericom

BusSwitch

Configuration

Generic Chipset

Pin Count

Packages

PI3B16226

24:12 Mux/Demux

PC133 & RCC

40

BQSOP

PI3B16234

32:16 Mux/Demux

PC133 & RCC

56

TSSOP

PI5C16292

24:12 Mux/Demux

56

TSSOP

PI5C16225

24:12 Mux/Demux

PC133 & RCC

56

TSSOP

PI5C16226

24:12 Mux/Demux

PC133 & RCC

40

BQSOP

PI5C16234

32:16 Mux/Demux

PC133 & RCC

56

TSSOP