The document describes the features and characteristics of the Harris Semiconductor SCHS132C, including buffered inputs, propagation delay, fanout, operating temperature range, power reduction, and compatibility with different logic families.
The CD54HC27, CD74HC27, CD54HCT27 and CD74HCT27 are high‑speed CMOS triple 3‑input NOR gate logic devices. They combine the operating speed of LSTTL gates with the low power consumption of standard CMOS, and can drive up to 10 LSTTL loads. The family operates over a wide temperature range of –55 °C to 125 °C and is available in HC (2 V‑6 V) and HCT (4.5 V‑5.5 V) supply voltage versions.
The document provides detailed pinouts for CERDIP, PDIP and SOIC packages, absolute maximum ratings, DC electrical specifications, switching performance (propagation delay, transition times), and packaging options including tape‑and‑reel data. It also includes mechanical drawings, ordering information, and TI’s product status notices.
| 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 about 7 ns at VCC = 5 V, CL = 15 pF, and a temperature of 25 °C.
They are rated for operation from –55 °C up to 125 °C.