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54F191

54F191 Description

Up/Down Binary Counter with Preset and Ripple Clock

54F191 Categories

Counters

54F191 Manufacturer

National Semiconductor

54F191 Datasheet (PDF)

54F191 Datasheet
54F191 Datasheet

54F191 Price & Availability


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54F191 Features

  • High-Speed-125 MHz typical count frequency
  • Synchronous counting
  • Asynchronous parallel load
  • Cascadable

54F191 Description

    The 'F191 is a reversible modulo-16 binary counter featuring synchronous counting and asynchronous presetting. The preset feature allows the 'F191 to be used in programmable dividers. The Count Enable input, the Terminal Count output and Ripple Clock output make possible a variety of methods of implementing multistage counters. In the counting modes, state changes are initiated by the rising edge of the clock.

    54F191 Parameters

    Temperature Min (deg C)-55
    Temperature Max (deg C)125
    Select parameters and click to see components with these parameters.

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    54F191FMQB, 54F191LMQB, 5962-9058201EA(54F191DMQB)

     
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    Keywords
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