PI5C3400 Datasheet, PDF (1/3 Pages) Pericom Semiconductor Corporation – 4-Bit, 4-Port Bus Exchange Switch

PI5C3400
4-BIT, 4-PORT BUS
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4-Bit, 4-Port Bus Exchange Switch
Product Features:
• Zero propagation delay
• Zero ground bounce in flow-through mode
• 5Ω switches connect inputs to outputs
• Direct bus connection when switches are ON
• Ultra Low Quiescent Power (0.2 µA Typical)
– Ideally suited for notebook applications
• Packages available:
– 24-pin 300 mil wide plastic PDIP (P)
– 24-pin 150 mil wide plastic QSOP (Q)
– 24-pin 300 mil wide plastic SOIC (S)
Logic Block Diagram
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 speed grades.
The PI5C3400 is a 4-bit, 4-port bus switch with individual exchanges
designed with a low ON resistance (5Ω) allowing inputs to be
connected directly to outputs. The bus switch creates no additional
propagational delay or ground bounce noise. The switches are
turned ON by the Bus Enable (BE) input signal, and the Bus
Exchange (BX0–BX3) input signals offer individual bit swapping
of the AB and CD signal pairs. This exchange configuration allows
bit swapping of buses in systems.
Product Pin Configuration
A0
C0
BE 1
24
Vcc
B0
D0
C0 2
23
D3
A0 3
22
B3
B0 4
21
A3
A1
B1
C1
D1
D0
5
24-PIN
P
20
C3
C1
6 Q 19
D2
A1
7
S
18
B2
A2
C2
B1 8
17
A2
B2
D2
D1 9
16
C2
BX0 10
15
NC
A3
C3
BX1 11
14
BX3
B3
D3
GND 12
13
BX2
BX0
BX1
BX2
BX3
BE
Truth Table⁽¹⁾
Function
BE
Disconnect
H
Connect
L
Exchange
L
BX0 BX1 BX2 BX3 A0–3 B0–3
X
X
X
X Hi-Z Hi-Z
BXi = L
C0–3 D0–3
BXi = H
D0–3 C0–3
Note:
1. H = High Voltage Level
X = Don’t Care
L = Low Voltage Level
Hi-Z = High Impedance
i = 0, 1, 2, or 3
191
PS8191 05/07/98