74VHCT257A Datasheet (STMicroelectronics) - Quad 2-channel multiplexer

74VHCT257A, Quad 2-channel multiplexer

t(s The 74VHCT257A is an advanced high-speed c CMOS quad 2 channel multiplexer (3-state) du fabricated with sub-micron silicon gate and ro double-layer metal wiring C2MOS technology.

P It is composed of four independent 2 channel te multiplexers with common select and enable input (OE).

The VHCT257A

74VHCT257A Features

* High speed: tPD = 4.8 ns (typ.) at VCC = 5 V

* Low power dissipation ICC = 4 μA (max.) at TA = 25 °C )

* Compatible with TTL outputs t(s VIH = 2 V (min.), VIL = 0.8 V (max.) c

* Power-down protection on inputs and outputs du

* Symmetrical output impedance ro |IOH| = IOL = 8