Product Description:
Pericom Semiconductor’s PI5C series of logic circuits are produced in the Company’s advanced 0.8 micron CMOS technology, achieving industry leading performance.
The PI5C3257 is a Quad 2:1 multiplexer/demultiplexer with threestate 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.

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 257 logic devices
• Packages available:
    – 16-pin 150 mil wide plastic QSOP (Q)
    – 16-pin 300 mil wide plastic SOIC (S)
    – 16-pin 150 mil wide plastic SOIC (W)
    – 20-pin 150 mil wide plastic TSSOP (R)