Download MC74LCX257 Datasheet PDF
MC74LCX257 page 2
Page 2
MC74LCX257 page 3
Page 3

MC74LCX257 Description

High impedance TTL patible inputs significantly reduce current loading to input drivers while TTL patible outputs offer improved switching noise performance. A VI specification of 5.5 V allows MC74LCX257 inputs to be safely driven from 5.0 V devices. Four bits of data from two sources can be selected using the Select input.

MC74LCX257 Key Features

  • Designed for 2.3 to 3.6 V VCC Operation
  • 5.0 V Tolerant
  • Interface Capability with 5.0 V TTL Logic
  • Supports Live Insertion and Withdrawal
  • IOFF Specification Guarantees High Impedance When VCC = 0 V
  • LVTTL patible
  • LVCMOS patible
  • 24 mA Balanced Output Sink and Source Capability
  • Near Zero Static Supply Current in All Three Logic States (10 mA)
  • Latchup Performance Exceeds 500 mA