PI3B3245 Datasheet, PDF (1/5 Pages) Pericom Semiconductor Corporation – 3.3V, Hot Insertion 8-Bit, 2-Port, NanoSwitch

PI3B3245
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3.3V, Hot Insertion
8-Bit, 2-Port, NanoSwitch™
Features
• Near-Zero propagation delay
• 5-ohm switches connect inputs to outputs
• Fast Switching Speed - 4.5ns max.
• Ultra Low Quiescent Power (0.2µA Typical)
– Ideally suited for notebook applications
• TTL-compatible control of inputs levels
• Packaging (Pb-free & Green available):
– 20-pin QSOP (Q)
– 20-pin TSSOP (L)
– 20-pin SOIC (S)
Description
Pericom Semiconductor’s PI3B3245 is a 3.3V 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.
Block Diagram
Pin Configuration
A0
SW
B0
A7
SW
B7
SW
BE
A
B
BE
NC 1
A0 2
A1 3
A2 4
A3 5
A4 6
A5 7
A6 8
A7 9
GND 10
20 VCC
19 BE
18 B0
17 B1
16 B2
15 B3
14 B4
13 B5
12 B6
11 B7
Truth Table⁽¹⁾
Function
BE
Disconnect
H
Connect
L
Notes:
H = High Voltage Level
L = Low Voltage Level
Hi-Z = High Impedance
A0–7
Hi-Z
B0–7
Pin Description
Pin Name
BE
A0–7
B0–7
GND
V_CC
Description
Bus Enable Input (Active LOW)
Bus A
Bus B
Ground
Power
1
PS8162F 09/23/04