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