General Description

The VS3V253 is a high-speed LVTTL–compatible dual 4:1 multiplexer/demultiplexer. The VS3V2253 contains two mux/demux channels with common path control (S0 & S1) and individual active LOW enables /EA and /EB. The low ON resistance of VS3V253 allows inputs to be connected to outputs without adding propagation delay and without generating additional signal noise. The VS3V2253 has 25? resistors in series with the switches to reduce ground-bounce noise and signal reflections.

Features

? Enhanced N-FET with no DC path to VCC

or GND in normal operating signal voltage

range.

? Low impedance switches connect inputs to

outputs with near-zero propagation delay:

5? (VS3V253) and 25? (VS3V2253)

? Pin-compatible with 74LVC253 or

equivalent logic devices

? Zero added ground bounce or signal noise

? Break-before-make feature

? Undershoot clamp diodes on all switch and

control pins

? ESD rating >2000V (Human Body Model)

or >200V (Machine Model)

? Latch-up current >100mA

? Available in 150-mil wide QSOP package

Applications

? 3.3V to 2.5V translation

? 2.5V to 1.8V translation

? Hot-Swapping

? Logic replacement

? Memory bank, video, and audio

switching