PI3B32X384_06 Datasheet, PDF (1/4 Pages) Pericom Semiconductor Corporation – 3.3V, 20-Bit, 2-Port NanoSwitch

Features
• Near-Zero propagation delay
• 5-ohm switches connect inputs to outputs
• Direct bus connection when switches are ON
• Ultra-low quiescent power (0.1µA typical)
– Ideally suited for notebook applications
• Fast Switching Speed: 4.5ns max.
• TTL-compatible control of input levels
• Packaging (pb-free & Green available):
– 48-pin 150-mil wide plastic BQSOP (B)
PI3B32X384
3.3V, 20-Bit, 2-Port NanoSwitch™
Description
Pericom Semiconductor’s PI3B32X384 is a 3.3V, 20-bit bus
switch 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. Four bus enable
signals are provided, one for each of the upper and lower five bits
of the two 10-bit buses.
Block Diagram
Pin Configuration
A0
A4
A15
A19
BEA
BEB
BEC
BED
SW
B0
A5
SW
B4
A9
SW
B15
A10
SW
B19
A14
SW
B5
SW
SW
SW
B9
B10
SW
A
B14
B
OE
Truth Table⁽¹⁾
Function BEA
BEB B4-B0 B19-B15
BEA 1
B0 2
A0 3
A1 4
B1 5
B2 6
A2 7
A3 8
B3 9
B4 10
A4 11
GND 12
BEC 13
B5 14
A5 15
A6 16
B6 17
B7 18
A7 19
A8 20
B8 21
B9 22
A9 23
GND 24
48 VCC
47 B19
46 A19
45 A18
44 B18
43 B17
42 A17
41 A16
40 B16
39 B15
38 A15
37 BEB
36 VCC
35 B14
34 A14
33 A13
32 B13
31 B12
30 A12
29 A11
28 B11
27 B10
26 A10
25 BED
Disconnect
H
H
Hi-Z
Hi-Z
Connect
Connect
Connect
Function
Disconnect
Connect
Connect
Connect
L
H
L
BEC
H
L
H
L
H
L
L
BED
H
H
L
L
A4-A0
Hi-Z
A4-A0
B9-B5
Hi-Z
A9-A5
Hi-Z
A9-A5
Hi-Z
A19-A15
A19-A15
B14-B10
Hi-Z
Hi-Z
A14-A10
A14-A10
Pin Description
Pin Name
BEx
A19-A0
B19-B0
GND
Vcc
Description
Bus Enable Inputs (Active LOW)
Bus A
Bus B
Ground
Power
Note: 1. H = High Voltage Level L = Low Voltage level
Hi-Z = High Impedance
06-0312
1
PS8336F
12/04/06