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NTE74LS257 IC-TTL Quad Multiplexer

Model:

NTE74LS257

 | Catalog #: 55051105
Price:
$4.54
$4.54
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  • Three−state version of the NTE74LS153
  • Schottky diode−clamped transistors
  • Perform parallel−to−serial conversion
  • Permit multiplexing from N−lines to one line
  • Absolute Maximum Ratings:
  • Supply voltage, VCC: 7V
  • Input voltage, VIN: 7V
  • Off−state output voltage: 5.5V
  • Operating temperature range, TA: 0°C to +70°C
  • Storage temperature range, Tstg: −65°C to +150°C
  • Unless otherwise specified, all voltages are referenced to GND

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  • 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
  • Absolute Maximum Ratings:
  • Supply voltage, VCC: 7V
  • Input voltage, VIN: 7V
  • Off−state output voltage: 5.5V
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  • Open collector outputs
  • Lamp test provision
  • Leading/trailing zero suppression
  • Absolute Maximum Ratings:
  • Supply voltage, VCC: 7V
  • Input voltage, VIN: 7V
  • Current forced into any output in the off−state: 1mA
  • Operating temperature range, TA: 0°C to +70°C
  • Storage temperature range, Tstg: −65°C to +150°C
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  • Absolute Maximum Ratings:
  • Supply voltage VCC: 7V
  • Input voltage VIN: 7V
  • Operating temperature range TA: 0°C to +70°C
  • Storage temperature range Tstg: −65°C to +150°C
  • Unless otherwise specified, all voltages are referenced to GND

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  • Lamp test provision
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  • Absolute Maximum Ratings:
  • Supply voltage, VCC: 7V
  • Input voltage, VIN: 7V
  • Peak Output Current (tw ≤ 1ms, Duty Cycle ≤ 10%): 200mA
  • Current forced into any output in the off−state: 1mA
  • Operating temperature range, TA: 0°C to +70°C
  • Storage temperature range, Tstg: −65°C to +150°C
  • Unless otherwise specified, all voltages are referenced to GND

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  • 3−State outputs drive bus lines directly
  • PNP inputs reduce DC loading on bus lines
  • Hysteresis at bus inputs improve noise margins
  • Absolute maximum ratings:
    Supply voltage, VCC: 7V
  • Input voltage, VIN: 7V
  • Off−state output voltage: 5.5V
  • Operating temperature range, TA: 0°C to +70°C
  • Temperature range, Tstg: −65°C to +150°C
  • Unless otherwise specified, all voltages are referenced to GND

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Product Summary

The NTE74LS257 is a quad 2-line to 1-line data selector/multiplexer in a 16-lead plastic DIP-type package designed to multiplex signals from four-bit data sources to four-output data lines in bus-organized systems. The 3-state outputs will not load the data lines when the output control pin (G) is at a high logic level.

Data Sheet

  • 3−state outputs interface directly with system bus
  • Provide bus interface from multiple sources in high−performance systems
  • Absolute Maximum Ratings:
  • Supply voltage, VCC: 7V
  • Input voltage, VIN: 7V
  • Off−state output voltage: 5.5V
  • Operating temperature range, TA: 0°C to +70°C
  • Storage temperature range, Tstg: −65°C to +150°C
  • Unless otherwise specified, all voltages are referenced to GND
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