Catalog > Semiconductors > Integrated Circuits Counter Counter 7493 4-Bit Binary Counter (Separate Divide-By-2 and Divide-By-8 Sections) 13.62 ZAR inc for 1 Each 9 in Stock Add Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE Features 4-stage ripple counter (binary) Counts 0 → 15 (mod‑16) in binary Asynchronous master reset (MR) clears all outputs Can be cascaded for higher-bit counters Two sections: Divide-by-2 (first flip-flop, Q0) Divide-by-8 (remaining flip-flops, Q1–Q3) Parallel outputs Q0–Q3 Applications Frequency division / prescalers Digital clocks and timers Event counters Sequential logic circuits Pulse and waveform generation Specifications Supply voltage (VCC):75 V – 5.25 V (typical 5 V) Input logic high (VIH): ≥ 2 V Input logic low (VIL): ≤ 0.8 V Output logic high (VOH): ≥ 2.4 V Output logic low (VOL): ≤ 0.4 V Output current: High: −0.4 mA Low: 8 mA Power dissipation: ~50 mW typical Operating temperature: 0 °C – 70 °C Timing Characteristics Maximum clock frequency (fmax): ~25 MHz (typical TTL) Propagation delay: ~15–35 ns per flip-flop