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PRODUCT INFO
MM74HC251N by FAIRCHILD
Image is representational - see manufacturer’s specifications
FAIRCHILD

MM74HC251N

Fairchild

Multiplexer 1-Element CMOS 3-ST 8-IN 16-Pin PDIP W Rail

PRICING per each  AVAILABILITY real time   
1-24 :$0.570
25-99 :$0.495
100-249 :$0.465
250-499 :$0.436
500-999 :$0.406
1,000 + :$0.376
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Ships From: Phoenix, AZ
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RESOURCES
SPECS
Supplier: Fairchild
Part No: MM74HC251N
RoHS: Yes
Supplier Standard Pack: This information is provided for customers who prefer to buy in multiples of the Manufacturer’s Standard Package quantity. <b>Minimum Order Quantities</b> and <b>Required Order Multiples</b> are presented with our price and availability information. 500
Logic Function: Multiplexer
Minimum Operating Supply Voltage: 2 V
Family: MM74HC251
Supplier_Package: PDIP W
Packaging: Rail
Configuration: 1 x 8:1
Number of Inputs per Chip: 8
Pin_Count: 16
Mounting: Through Hole
Maximum Operating Supply Voltage: 6 V
Operating Temperature: -40 to 85 °C
Dimension: 19.68(Max) x 6.6(Max) x 3.42(Max) mm
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DESCRIPTION
The MM74HC251 8-channel digital multiplexer with 3-STATE outputs utilizes advanced silicon-gate CMOS technology. Along with the high noise immunity and low power consumption of standard CMOS integrated circuits, it possesses the ability to drive 10 LS-TTL loads. The large output drive capability and 3-STATE feature make this part ideally suited for interfacing with bus lines in a bus oriented system.

This multiplexer features both true (Y) and complement (W) outputs as well as a STROBE input. The STROBE must be at a low logic level to enable this device. When the STROBE input is HIGH, both outputs are in the high impedance state. When enabled, address information on the data select inputs determines which data input is routed to the Y and W outputs. The 74HC logic family is speed, function, as well as pinout compatible with the standard 74LS logic family

Product Highlights
  • Typical propagation delay

    Data select to Y: 26 ns

  • Wide supply range: 2-6V
  • Low power supply quiescent current: 80 µA maximum (74HC)
  • 3-STATE outputs for interface to bus oriented

    systems

COMMUNITY FORUM
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PART CLASSIFICATION DATA
HTS: 8542390000
ECCN: EAR99
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