PI5C162862C Datasheet, PDF (1/3 Pages) Pericom Semiconductor Corporation – 20-Bit, 2-Port Bus Switch with Undershoot Protection

PI5C16862C
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20-Bit, 2-Port Bus Switch
with Undershoot Protection
Product Features
• Near-zero propagation delay
• 5Ω switches connect inputs to outputs
• Undershoot Protection up to –1V
• Direct bus connection when switches are ON
• 32X384 function with flow through pinout make board
layout easier
• Ultra-low quiescent power (120µA typical)
— ideally suited for notebook applications
• Industrial operating temperature: –40°C to +85°C
• Packages available:
— 48-pin 240-mil wide plastic TSSOP (A)
— 48-pin 150-mil wide plastic BQSOP (B)
Product Description
Pericom Semiconductor’s PI5C series of Bus Switch circuits are
produced using the Company’s advanced submicron CMOS
technology, achieving industry leading speed.
The PI5C16862C is configured as a 20-bit, 2-port bus switch
designed with a low ON resistance (5Ω) allowing inputs to be
connected directly to outputs. The bus switch creates no additional
propagational delay or additional ground bounce noise. The
switches are turned ON by the Bus Enable (BEx) input signal.
The PI5C16862C can withstand undershoot of up to –1V.
Logic Block Diagram
Product Pin Configuration
48-Pin
A,B
Truth Table⁽¹⁾
Function
Disconnect
Connect
BEX A19-A0
H Hi-Z
L B19-B0
Note:
1. H = High Voltage Level
L = Low Voltage Level
Hi-Z = High Impedance
Product Pin Description
Pin Name
Description
BEx
A19-A0
B19-B0
Bus Enable Inputs (Active LOW)
Bus A
Bus B
1
PS8391A
06/10/99