• Part: 74HC191
  • Description: 4-BIT SYNCHRONOUS UP/DOWN BINARY COUNTERS
  • Manufacturer: Texas Instruments
  • Size: 1.20 MB
74HC191 Datasheet (PDF) Download
Texas Instruments
74HC191

Key Features

  • a fully independent clock circuit
  • The function of the counter is dictated solely by the condition meeting the stable setup and hold times
  • The output changes to agree with the data inputs independently of the level of CLK
  • This feature allows the counters to be used as modulo-N dividers simply by modifying the count length with the preset inputs
  • Two outputs are available to perform the cascading function: ripple clock (RCO) and maximum/minimum (MAX/MIN) count
  • MAX/MIN produces a high-level output pulse with a d