MC74HC251A: 8-Input Multiplexer (3-state)

Description: The MC54/74HC251 is identical in pinout to the LS2...
  • The MC54/74HC251 is identical in pinout to the LS251. The deviceinputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LSTTL outputs.This device selects one of the eight binary Data Inputs, as determined by the Address Inputs. The Output Enable pin must be a low level for the selected data to appear at the outputs. If Output Enable is high, both the Y and the Y outputs are in the high impedance state. This 3 state feature allows the HC251 to be used in bus oriented systems. The HC251 is similar in function to the HC251 which does not have 3 state outputs.
  • Features
  • Output Drive Capability: 10 LSTTL Loads
  • Outputs Directly Interface to CMOS, NMOS, and TTL
  • Operating Voltage Range: 2 to 6 V
  • Low Input Current: 1 A
  • High Noise Immunity Characteristic of CMOS Devices
  • These are PbFree Devices
  • Applications
  • Desktop
  • Technical Documentation & Design Resources
    Product Change Notification
    Availability and Samples
    MC74HC251ADG
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: 8-Input Multiplexer (3-state)
  • Package Type: SOIC-16
  • Package Case Outline: 751B-05
  • MSL: 1
  • Container Type: TUBE
  • Container Qty: 48
  • Inventory

  • Market Leadtime (weeks):17 to 20
  • Arrow:0
  • Avnet:<1K
  • Digikey:>1K
  • Mouser:>1K
  • ON Semiconductor:48,816
  • MC74HC251ADR2G
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: 8-Input Multiplexer (3-state)
  • 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
  • Mouser:>1K
  • ON Semiconductor:17,500
  • MC74HC251ADTG
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: 8-Input Multiplexer (3-state)
  • Package Type: TSSOP-16
  • Package Case Outline: 948F-01
  • MSL: 1
  • Container Type: TUBE
  • Container Qty: 96
  • MC74HC251ADTR2G
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: 8-Input Multiplexer (3-state)
  • Package Type: TSSOP-16
  • Package Case Outline: 948F-01
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 2500
  • NLV74HC251ADR2G
  • Status: Active
  • Compliance: AEC Qualified PPAP Capable Pb-free Halide free 
  • Description: 8-Input Multiplexer (3-state) , 8-Channel Multiplexer (3-state)
  • Package Type: SOIC-16
  • Package Case Outline: 751B-05
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 2500
  • Specifications
  • Channels:
  • VCC Min (V):
  • VCC Max (V):
  • tpd Max (ns): 48 
  • IO Max (mA): null 
  • Package Type: SOIC-16  TSSOP-16 
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