MC74AC257: Quad 2-Input Multiplexer 3-State Output

Description: The MC74AC257/74ACT257 is a quad 2-input multiplex...
  • The MC74AC257/74ACT257 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 (noninverted) 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.
  • Features
  • Multiplexer Expansion by Tying Outputs Together
  • Noninverting 3-State Outputs
  • Outputs Source/Sink 24 mA
  • ACT257 Has TTL Compatible Inputs
  • These devices are available in Pb-free package(s). Specifications herein apply to both standard and Pb-free devices. Please see our website at www.onsemi.com for specific Pb-free orderable part numbers, or contact your local ON Semiconductor sales office or representative.
  • Technical Documentation & Design Resources
    Product Change Notification
    Availability and Samples
    MC74AC257DR2G
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: Quad 2-Input Multiplexer 3-State Output
  • Package Type: SOIC-16
  • Package Case Outline: 751B-05
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 2500
  • Inventory

  • Market Leadtime (weeks):17 to 20
  • Arrow:0
  • Digikey:>1K
  • Specifications
  • Channels:
  • VCC Min (V):
  • VCC Max (V):
  • tpd Max (ns): 7.5 
  • IO Max (mA): 24 
  • Package Type: SOIC-16 
  • ON Semiconductor Full Web Site