PI3B3257LE
数据手册.pdfMultiplexer/Demultiplexer Bus Switch 1Element CMOS 8IN 16Pin TSSOP Tube
Description
Pericom Semiconductor’s PI3B3257 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.
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 avaliable:
– 16-pin 150 mil wide plastic QSOP Q
– 16-pin 150 mil wide plastic SOIC W
– 16-pin 173 mil wide plastic TSSOP L
