PI5C3245 Datasheet, PDF (1/3 Pages) Pericom Semiconductor Corporation – 8-Bit, 2-Port Bus Switch

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8-Bit, 2-Port Bus Switch
Product Features
• Near zero propagation delay
• 5Ω 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
• Packages available:
– 20-pin 173 mil wide plastic TSSOP (L)
– 20-pin 300 mil wide plastic PDIP (P)
– 20-pin 150 mil wide plastic QSOP (Q)
– 20-pin 300 mil wide plastic SOIC (S)
Logic Block Diagram
Product Description
Pericom Semiconductor’s PI5C series of logic circuits are produced
using the Company’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 (5Ω) 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).
Product Pin Configuration
A0
B0
NC 1
20 V_CC
A0 2
19 BE
A1 3
18 B0
A2 4 ^20-Pin 17 B1
A7
B7
A3
5
L20
P20
16
B2
A4 6 Q20 15 B3
A5 7 ^S20 14 B4
A6 8
13 B5
A7 9
12 B6
GND 10
11 B7
BE
Truth Table⁽¹⁾
Function
BE A0–7
Disconnect
H Hi-Z
Connect
L B0–7
Note:
1. H =
L=
Hi-Z =
High Voltage Level
Low Voltage Level
High Impedance
Product Pin Description
Pin Name
BE
A0–7
B0–7
GND
VCC
Description
Bus Enable Input (Active LOW)
Bus A
Bus B
Ground
Power
1
PS7015A 06/28/99