This document describes the features and characteristics of the 74F455 and 74F456 buffers/drivers, including high impedance inputs, parity generation/checking, and 3-state outputs. They are suitable for memory address drivers, clock drivers, and bus-oriented transmitters/receivers.
This document is a product specification datasheet for the Philips 74F456 and 74F455 integrated circuits. The 74F456 is an octal buffer/driver with parity generation/checking designed as a non-inverting version, combining functions of the 74F244 and 74F280A in one package.
The datasheet provides comprehensive technical details including logic symbols, pin configurations, function tables, absolute maximum ratings, recommended operating conditions, DC and AC electrical characteristics, and test circuit diagrams. It notes that this part is discontinued.
| Supply Voltage (Voc) | 0.5 to +7.0 V |
|---|---|
| Operating Temperature Range | 0 to +70 °C |
| Output Sink Current | 64mA |
| Package Type | 24-pin plastic Slim DIP (300 mil) |
| Propagation Delay (Typical) | 7.5ns |
No, this is a discontinued part.
It acts as an octal buffer/driver with parity generation/checking.
No, it is a non-inverting buffer.