Datasheet4U Logo Datasheet4U.com

74LCX257 - Low-Voltage Quad 2-Input Multiplexer

General Description

The LCX257 is a quad 2-input multiplexer with 3-STATE outputs.

Four bits of data from two sources can be selected using a Common Data Select input.

The four outputs present the selected data in true (non inverted) form.

Key Features

  • s 5V tolerant inputs and outputs s 2.3V.
  • 3.6V VCC specifications provided s 6.0 ns tPD max (VCC = 3.3V, In → Zn), 10 µA ICC max s Power down high impedance inputs and outputs s Supports live insertion/withdrawal (Note 1) s Implements patented noise/EMI reduction circuitry s Latch-up performance exceeds 500 mA s ESD performance: Human body model > 2000V Machine model > 200V Note 1: To ensure the high-impedance state during power up or down, OE should be tied to VCC through a pull-up resist.

📥 Download Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
74LCX257 LOW VOLTAGE CMOS QUAD 2-CHANNEL MULTIPLEXER STMicroelectronics
74LCX257 Low Voltage Quad 2-Input Multiplexer Fairchild Semiconductor
74LCX2244 Low Voltage Buffer/Line Driver Fairchild Semiconductor
74LCX240 Low Voltage Octal Buffer/Line Driver Fairchild Semiconductor
74LCX241 Low Voltage Octal Buffer/Line Driver Fairchild Semiconductor

Other Datasheets by National Semiconductor (now Texas Instruments)

Part Number Description
74L74 Dual Positive Edge Triggered D Flip-Flop
74LS04 Hex Inverting Gates
74LS126A Quad TRI-STATE Buffer
74LS139 Decoders/Demultiplexers
74LS14 Hex Inverters

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.

View original datasheet text
74LCX257 Low Voltage Quad 2-Input Multiplexer with 5V Tolerant Inputs and Outputs May 1995 Revised September 2000 74LCX257 Low Voltage Quad 2-Input Multiplexer with 5V Tolerant Inputs and Outputs General Description The LCX257 is a quad 2-input multiplexer with 3-STATE outputs. Four bits of data from two sources can be selected using a Common Data Select input. The four outputs present the selected data in true (non inverted) form. The outputs may be switched to a high impedance state by placing a logic HIGH on the common Output Enable (OE) input, allowing the outputs to interface directly with bus-oriented systems. The 74LCX257 is fabricated with advanced CMOS technology to achieve high speed operation while maintaining CMOS low power dissipation.