1. 74LS163A Synchronous 4-Bit Binary Counter|
Synchronous, presettable counters feature an internal carry look-ahead for application in high-speed counting designs. 10 pages.
2. 74LS393 Dual 4-Bit Binary Counter|
Each of these monolithic circuits contains eight masterslave flip-flops and additional gating to implement two individual four-bit counters in a single package. The DM74LS393 comprises two independent four-bit binary counters each having a clear and a clock input. 6 pages.
3. 4017 — Fairchild|
A five-stage divide-by-10 Johnson counter with 10 decoded outputs and a carry out bit. 8 pages.
4. 4017 — Motorola|
TA five-stage Johnson decade counter with built-in code converter. High-speed operation and spike-free outputs are obtained by use of Johnson decade counter design. 5 pages.