Pericom Semiconductor’s PI5C3253QEX is a Dual 4:1 Multiplexer/demultiplexer with three-state outputs that is pinout compatible with the PI74FCT253T, 74F253, and 74ALS/AS/LS 253. Inputs can be connected to outputs with low on resistance (5Ω) with no additional ground bounce noise or propagation delay.
Feature
Near-Zero propagation delay
5Ω switches connect inputs to outputs
Direct bus connection when switches are ON
ESD Protection up to 2kV HB
Ultra Low Quiescent Power (0.2μA typical)
Pin compatible with 74 series 253 logic devices
Packaging (Pb-free & Green available):
16-pin 150-mil wide plastic QSOP (Q)
16-pin 173-mil wide plastic TSSOP (L)
16-pin 150-mil wide plastic SOIC (W)
Catalogue
FPGA / CPLD
Memory
MOS 
MCU 
DSP
OCEP
Secondary 
Other 
