SN54AHCT02 and SN74AHCT02 are four independent 2-input positive-NOR gates that perform the Boolean function Y = A-B or Y = A+B in positive logic.
The SN54AHCT02 and SN74AHCT02 are quadruple 2‑input positive‑NOR gate devices that implement the Boolean function Y = A·B (positive logic). The datasheet lists the available package options such as PDIP, SOIC, SSOP, TSSOP, and QFN, together with ordering part numbers and marking details.
Electrical characteristics include supply voltage ranges, input and output voltage thresholds, current limits, and thermal impedance for each package. Recommended operating temperature ranges, absolute maximum ratings, and noise specifications are also provided, along with mechanical drawing dimensions for the plastic dual‑in‑line package.
| Supply voltage range (VCC) | 4.5 V to 5.5 V |
|---|---|
| High‑level input voltage (VIH) | 2 V |
| Low‑level input voltage (VIL) | 0.8 V |
| Package thermal impedance – D package | 86 °C/W |
It contains four independent 2‑input NOR gates that perform the Boolean function Y = A·B in positive logic.
SN54AHCT02: –55 °C to 125 °C; SN74AHCT02: –40 °C to 85 °C.