PI5C3245QE Datasheet, PDF (1/5 Pages) Pericom Semiconductor Corporation – 8-Bit, 2-Port Bus Switch

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8-Bit, 2-Port Bus Switch
Features
• Near-Zero propagation delay
• 5-ohm switches connect inputs to outputs
• Direct bus connection when switches are on
• Ultra Low Quiescent Power (0.2μA typical)
– Ideally suited for notebook applications
• Pin compatible with 74 series 245 logic devices
• Packaging (Pb-free & Green available):
– 20-pin 173-mil wide plastic TSSOP (L)
– 20-pin 150-mil wide plastic QSOP (Q)
– 20-pin 300-mil wide plastic SOIC (S)
Description
Pericom Semiconductor’s PI5C3245 is a 8-bit, 2-port bus switch
designed with a low On-Resistance (5-ohm) 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).
Block Diagram
Pin Configuration
NC 1
20 V_CC
A0
B0
A0 2
19 BE
A1 3
18 B0
A2 4
17 B1
A7
B7
A3 5
A4 6
16 B2
15 B3
A5 7
14 B4
A6 8
13 B5
A7 9
12 B6
BE
GND 10
11 B7
Truth Table⁽¹⁾
Function
BE A0–7
Disconnect
H Hi-Z
Connect
L B0–7
Note:
1. H = High Voltage Level
L = Low Voltage Level
Hi-Z = High Impedance
Pin Description
Pin Name
BE
A0–7
B0–7
GND
VCC
Description
Bus Enable Input (Active LOW)
Bus A
Bus B
Ground
Power
06-0239
1
PS7015D 05/11/06