Quad 2:1 Mux/DeMux NanoSwitch
PI3B3257A
3.3V, Quad 2:1 Mux/DeMux NanoSwitch™
Features
• Near-Zero propagation delay
• 5Ω switches connect inputs to...
Description
PI3B3257A
3.3V, Quad 2:1 Mux/DeMux NanoSwitch™
Features
Near-Zero propagation delay
5Ω switches connect inputs to outputs
Fast Switching Speed: 4.8ns max.
Ultra-Low Quiescent Power: 0.1µA typical – Ideally suited for notebook applications
Pin compatible with 74 series 257 logic devices
Packaging (Pb-free & Green): – 16-pin 150 mil wide plastic QSOP (Q)
Description
Pericom Semiconductor’s PI3B3257A is a 3.3 Volt, Quad 2:1 multiplexer/demultiplexer with three-state outputs that is pinout and function compatible with the PI74FCT257T, 74F257, and 74ALS/AS/LS257. Inputs can be connected to outputs with low On-Resistance (5Ω) with no additional ground bounce noise or propagation delay.
Block Diagram
Pin Configuration
IA0 IA1 IB0 IB1 IC0 IC1 ID0 ID1
SW
SW
E SW SW
SW
S SW SW
SW
YA YB
SW YC YD
IY
E
Truth Table(1)
E S YA YB
H X Hi-Z Hi-Z
L L IA0 IB0
L H IA1 IB1 Note: 1. H = High Voltage Level L = Low Voltage Level
YC Hi-Z IC0 IC1
YD Hi-Z ID0 ID1
Function Disable S=0 S=1
S IA0 IA1 YA IB0 IB1 YB GND
1 2 3 4 5 6 7 8
16 15 14 13 12 11 10 9
Pin Description
Pin Name IAN-IDN S E YA-YD GND VCC NC
Description Data Inputs Select Inputs Enable Data Outputs Ground Power No Connect
VCC E ID0 ID1 YD IC0 IC1 YC
11-0009
1
01/10/11
PI3B3257A
3.3V, Quad 2:1 Mux/DeMux NanoSwitch™
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.)
Storage Temperature....................................................................
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