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  • 74190 Synchronous UP/DOWN BCD Decade Counter

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74190 Synchronous UP/DOWN BCD Decade Counter

  • Product Code: 0727
  • Availability: 5
  • Price :

    Rs.44.84 (inc GST)

    Qty :

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74190 Synchronous UP/DOWN BCD Decade Counter


The SN54/74LS190 is a synchronous UP/DOWN BCD Decade (8421) Counter and the SN54/74LS191  is a synchronous UP /DOWN Modulo-16 Binary Counter. State changes of the counters are synchronous with the LOW-to-HIGH transition of the Clock Pulse input. An asynchronous Parallel Load (PL) input overrides counting and loads the data present on the Pn inputs into the flip-flops, which makes it possible to use the circuits as programmable counters.

A Count Enable (CE) input serves as the carry /borrow input in multi-stage counters. An Up /Down Count Control (U/D) input determines whether a circuit counts up or down. A Terminal Count (TC) output and a Ripple Clock (RC) output provide overflow/underflow indication and make possible a variety of methods for generating carry/borrow signals in multistage counter applications.

Features of 74190

  • Low Power 90 mW Typical Dissipation

  • High Speed 25 MHz Typical Count Frequency

  • Synchronous Counting

  • Asynchronous Parallel Load

  • Individual Preset Inputs

  • Count Enable and Up/Down Control Inputs

  • Cascadable

  • Input Clamp Diodes Limit High Speed Termination Effects

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Tags: 74 Series