Product Description
Pericom Semiconductors PI5C series of logic circuits are produced using the Companys 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.

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