4-STAGE PRESETTABLE RIPPLE COUNTERS
●The SN54/74LS196 decade counter is partitioned into divide-by-two and divide-by-five sections which can be combined to count either in BCD (8, 4, 2, 1) sequence or in a bi-quinary mode producing a 50% duty cycle output. The SN54/74LS197 contains divide-by-two and divide-by-eight sections which can be combined to form a modulo-16 binary counter. Low Power Schottky technology is used to achieve typical count rates of 70 MHz and power dissipation of only 80 mW.
●• Low Power Consumption — Typically 80 mW
●• High Counting Rates — Typically 70 MHz
●• Choice of Counting Modes — BCD, Bi-Quinary, Binary
●• Asynchronous Presettable
●• Asynchronous Master Reset
●• Easy Multistage Cascading
●• Input Clamp Diodes Limit High Speed Termination Effects
