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TEXAS INSTRUMENTS  SN74LS251N  LOGIC, 8-IN DATASELCT/MUX 3ST, 16DIP

TEXAS INSTRUMENTS SN74LS251N
Technical Data Sheet (10.09KB) EN See all Technical Docs

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Product Overview

The SN74LS251N is a 8-to-1 Data Selector/Multiplexer with 3-state outputs. It contains full on-chip binary decoding to select one-of-eight data sources and feature a strobe-controlled three-state output. The strobe must be at a low logic level to enable these devices. The three-state outputs permit a number of outputs to be connected to a common bus. When the strobe input is high, both outputs are in a high-impedance state in which both the upper and lower transistors of each totem-pole output are off and the output neither drives nor loads the bus significantly. When the strobe is low, the outputs are activated and operate as standard TTL totem-pole outputs. To minimize the possibility that two outputs will attempt to take a common bus to opposite logic levels, the output control circuitry is designed so that the average OD time is shorter than the average output enable time.
  • Three state outputs interface directly with system bus
  • Perform parallel-to-serial conversion
  • Permit multiplexing from N-lines to one line
  • Complementary outputs provide true and inverted data
  • Fully compatible with most TTL circuits

Product Information

Logic Type:
Data Selector / Multiplexer
No. of Channels:
1Channels
Line Configuration:
8:1
Supply Voltage Min:
4.75V
Supply Voltage Max:
5.25V
Logic Case Style:
DIP
No. of Pins:
16Pins
Operating Temperature Min:
0°C
Operating Temperature Max:
70°C
Packaging:
Each
Product Range:
-
Automotive Qualification Standard:
MSL:
-
SVHC:
No SVHC (15-Jun-2015)

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Applications

  • Industrial;
  • Communications & Networking

Legislation and Environmental

Moisture Sensitivity Level:
-
Country of Origin:
Malaysia

Country in which last significant manufacturing process was carried out

RoHS Compliant:
Yes
Tariff No:
85423990
Weight (kg):
.001633

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