PI5C34X383 Datasheet, PDF (1/5 Pages) Pericom Semiconductor Corporation – 32-Bit BusSwitch/Exchange

PI5C34X383/PI5C34X2383
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Product Features:
• Near-zero propagation delay
• Low noise, 25Ω version (PI5C32383)
• 5Ω switches connect inputs to outputs (PI5C3383)
• Direct bus connection when switches are ON
• Ultra-low quiescent power (0.2 µA typical) – Ideally
suited for notebook applications
• Packages available:
– 80-pin 150-mil wide plastic QSOP (B)
Logic Block Diagram
A0
C0 A4
C4
32-Bit BusSwitch/Exchange
Product Description:
Pericom Semiconductor’s PI5C series of logic circuits are pro-
duced in the Company’s advanced 0.8 micron CMOS technology,
achieving industry leading performance.
The PI5C34X383 and PI5C34X2383 are 32-bit bus switches with
exchange designed with a low ON resistance 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 (BE) input signal, and the Bus
Exchange (BX) input signal offers nibble swapping of the AB and
CD pairs of signals. This exchange configuration allows byte
swapping of buses in systems. It can also be used as a quad
2-to-1 multiplexer and to create low delay barrel shifters, etc. The
PI5C34X2383 is designed with an internal 25Ω resistor reducing
noise reflection in high-speed applications.
B0
D0 B4
D4
Applications:
16-wide 2:1 MUX, Byte Swapping, and Hot Insertion.
A3
C3 A7
C7
Truth Table⁽¹⁾
Function
BEN BXn A0-A15 B0-B15
B3
D3 B7
D7
Disconnect
HX
Hi-Z
Hi-Z
Connect
L
L
C0-C15 D0-D15
Exchange
L
H
D0-D15 C0-C15
BX1
Note: 1. H = High Voltage Level, X = Don’t Care,
L = Low Voltage Level, Hi-Z = High Impedance
BE1
BX2
BE2
A8
C8 A12
C12
B8
D8 B12
D12
A11
C11 A15
C15
B11
D11 B15
D15
BX1
BE1
BX2
BE2
203
PS8120 08/6/97