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PI5C34X383/PI5C34X2383
Product Features:
聲 Near-zero propagation delay
聲 Low noise, 25ohm version (PI5C32383)
聲 5ohm switches connect inputs to outputs (PI5C3383)
聲 Direct bus connection when switches are ON
聲 Ultra-low quiescent power (0.2 碌A(chǔ) typical) 聳 Ideally
suited for notebook applications
聲 Packages available:
聳 80-pin 150-mil wide plastic BQSOP (B)
32-Bit BusSwitch/Exchange
Product Description:
Pericom Semiconductor聮s PI5C series of logic circuits are pro-duced
in the Company聮s advanced submicron 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 25ohm resistor reducing
noise reflection in high-speed applications.
Logic Block Diagram
A
4
C
4
A
0
C
0
B
0
D
0
B
4
D
4
Applications:
16-wide 2:1 MUX, Byte Swapping, and Hot Insertion.
A
3
C
3
A
7
C
7
Truth Table
(1)
Function
Disconnect
Connect
Exchange
BE
N
H
L
L
BXn
X
L
H
A
0-A15
Hi-Z
C
0-
C
15
D
0-
D
15
B
0-B15
Hi-Z
D
0-
D
15
C
0-
C
15
B
3
D
3
B
7
D
7
BX1
BE1
BX2
BE2
Note:
1. H = High Voltage Level, X = Don聮t Care,
L = Low Voltage Level, Hi-Z = High Impedance
A
8
C
8
A
12
C
12
B
8
D
8
B
12
D
12
A
11
C
11
A
15
C
15
B
11
D
11
B
15
D
15
BX1
BE1
BX2
BE2
1
PS8120
01/19/01
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2
3
4
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