This document describes the features and characteristics of Harris Semiconductor SCHS125B, including buffered inputs, propagation delay, fanout, operating temperature range, power reduction, logic compatibility, etc.
The CD54HC02, CD74HC02, CD54HCT02 and CD74HCT02 are high‑speed CMOS quad two‑input NOR gates offered by Texas Instruments. They feature buffered inputs, low propagation delay, and the ability to drive up to 10 LSTTL loads, making them suitable for a wide range of digital logic applications.
The datasheet provides full pin‑out diagrams, absolute maximum ratings, DC electrical specifications, switching characteristics, and mechanical package dimensions for the 14‑lead PDIP, SOIC and CERDIP versions. Key performance figures such as typical propagation delay, operating temperature range, and supply voltage limits are listed for both HC and HCT families.
| Typical Propagation Delay | 7 ns at Vcc = 5 V, CL = 15 pF, Ta = 25°C |
|---|---|
| Operating Temperature Range | -55°C to 125°C |
The typical propagation delay is 7 ns at Vcc = 5 V, CL = 15 pF, and a temperature of 25 °C.
The device is rated for operation from –55 °C up to 125 °C.