74VHCT257A - STMicroelectronics

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 is a non-inverting le multiplexer. SO-16 Table 1. Order c.

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 mA (min.) P
■ Balanced propagation delays: tPLH ≅ tPHL te
■ Operating voltage range: VCC(opr) = 4.5 to 5.5 V le
■ Pin and function compatible with 74 series 257 so
■ Improved latch-up immunity b
■ Low noise: VOLP = 0.8 V (max.) ) - O Description t(s The 74VHCT257A is an advanced high-speed c CMOS quad 2 channel multipl.