SN74HC163 is a 4-bit synchronous, presettable counter featuring an internal carry look-ahead for application in high-speed counting designs.
The SN54HC163 and SN74HC163 are 4‑bit synchronous binary counters with internal carry look‑ahead, programmable preset, and synchronous clear functions. The document describes their operation, pin functions, and how to cascade multiple devices for n‑bit counting.
Technical data include supply voltage ranges, input and output current limits, timing parameters, package dimensions, and mechanical drawings. The datasheet also contains ordering information, absolute maximum ratings, recommended operating conditions, and legal notices from Texas Instruments.
| Maximum output drive current at 5 V | 4 mA |
|---|---|
| Package pin count (PW – R‑PDSO‑G) | 14 pins |
It can drive up to 4 mA of output current at a 5 V supply.
The PW (R‑PDSO‑G) package has 14 pins.