Truth Table
(1)
Function
Disconnect
Connect
Note:
N
BE
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI5C34X461
40-Bit, 2-Port Bus Switch
Product Features
聲 Near zero propagation delay
聲 5ohm switches connect inputs to outputs
聲
聲
Direct bus connection when switches are ON
Ultra Low Quiescent Power (0.2 碌A(chǔ) Typical) 聳 Ideally
suited for notebook applications
Product Description
Pericom Semiconductor聮s PI5C series of logic circuits are produced
using the Company聮s advanced submicron CMOS technology,
achieving industry leading performance.
The PI5C34X461 is a 40-bit, 2-port bus switch designed with a low
ON resistance (5ohm) 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.
聲 Packages available:
聳 96-pin Low Profile Fine Pitch Ball Grid Array (NB96)
Logic Block Diagram
1
A
0
1
B
0
2
A
0
2
B
0
Product Pin Description
Pin Name
N
A
0
N
B
0
De s cription
Bus A
Bus B
Bus Enable Pins (Active LOW)
Ground
Power
-
N
A
9
-
N
B
9
1
A
9
1
B
9
2
A
9
2
B
9
N
BE
1
BE
2
BE
N
GN D
N
V
CC
3
A
0
3
B
0
4
A
0
4
B
0
Note:
N = 1 through 4 for each set of 10 bit buses
3
A
9
3
B
9
4
A
9
4
B
9
3
BE
4
BE
H
L
A0聳9
Hi-Z
B0聳9
1. H = High Voltage Level
L = Low Voltage Level
Hi-Z = High Impedance
1
PS8408A
01/25/00