The 74HC/HCT27 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard no. 7A. The 74HC/HCT27 provide the 3-input NOR function.
The Philips 74HC/HCT27 is a high-speed Si-gate CMOS device that provides the 3-input NOR function. It is pin compatible with low power Schottky TTL (LSTTL) and is specified in compliance with JEDEC standard no. 7A.
The document details the electrical characteristics, including propagation delay and input capacitance, for both the 74HC and 74HCT variants under various temperature conditions. It also includes pin descriptions, logic symbols, functional diagrams, and ordering information.
| Function | Triple 3-input NOR gate |
|---|---|
| Technology | High-speed Si-gate CMOS |
| Input Capacitance | 3.5 pF |
| Power Dissipation Capacitance | 24 pF |
| Icc Category | SSI |
The 74HC/HCT27 provide the 3-input NOR function.
Yes, it is pin compatible with low power Schottky TTL (LSTTL).