PI5C3125C Datasheet, PDF (1/6 Pages) Pericom Semiconductor Corporation – 4-Bit BusSwitch with -2V Undershoot Protection

PI5C3125C
PI5C3126C
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4-Bit BusSwitch with
–2V Undershoot Protection
Product Features
• R_ON 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