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MC74LCX257 - Low-Voltage CMOS Quad 2-Input Multiplexer

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 Compatible.
  • LVCMOS Compatible.
  • 24 mA Balanced Output Sink and Source Capability.
  • Near Zero Static Supply Current in All Three Logic States (10 mA) Substantially Reduces System Power Requirements.
  • Latchu.

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Datasheet Details

Part number MC74LCX257
Manufacturer onsemi
File Size 126.24 KB
Description Low-Voltage CMOS Quad 2-Input Multiplexer
Datasheet download datasheet MC74LCX257 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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MC74LCX257 Low-Voltage CMOS Quad 2-Input Multiplexer With 5.0 V−Tolerant Inputs and Outputs (3−State, Non−Inverting) The MC74LCX257 is a high performance, quad 2−input multiplexer with 3−state outputs operating from a 2.3 to 3.6 V supply. High impedance TTL compatible inputs significantly reduce current loading to input drivers while TTL compatible 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. The four outputs present the selected data in the true (non−inverted) form. The outputs may be switched to a high impedance state by placing a logic HIGH on the Output Enable (OE) input.
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