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PI5C3245
8-Bit, 2-Port Bus Switch
Product Features
聲 Near zero propagation delay
聲 5鈩?switches connect inputs to outputs
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 Pin compatible with 74 series 245 logic devices
聲 Packages available:
聳 20-pin 173 mil wide plastic TSSOP (L)
聳 20-pin 300 mil wide plastic PDIP (P)
聳 20-pin 150 mil wide plastic QSOP (Q)
聳 20-pin 300 mil wide plastic SOIC (S)
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 PI5C3245 is a 8-bit, 2-port bus switch designed with a low ON
resistance (5鈩? 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. The pinout is compatible with PI74FCT245T
(Octal Bidirectional Transceiver).
Logic Block Diagram
Product Pin Configuration
A
0
B
0
A
7
B
7
NC
A
0
A
1
A
2
A
3
A
4
A
5
A
6
A
7
GND
1
2
3
4
20-Pin
L20
5
P20
6
Q20
7
S20
8
9
10
20
19
18
17
16
15
14
13
12
11
V
CC
BE
B
0
B
1
B
2
B
3
B
4
B
5
B
6
B
7
BE
Truth Table
Function
Disconnect
Connect
(1)
Product Pin Description
BE
H
L
A
0鈥?
Hi-Z
B
0鈥?
Pin Name
BE
A
0
鈥?/div>
7
B
0
鈥?/div>
7
GND
V
CC
Description
Bus Enable Input (Active LOW)
Bus A
Bus B
Ground
Power
Note:
1. H
= High Voltage Level
L
= Low Voltage Level
Hi-Z = High Impedance
1
PS7015A
06/28/99
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