This document describes the features and characteristics of two octal bus transceivers, 74F620 and 74F623. They both have high-impedance NPN base inputs for reduced loading, making them ideal for applications that require high output drive and minimal bus loading. Additionally, they have 3-State buffer outputs with a sinking capability of 64mA and a sourcing capability of 15mA.
This document is a product specification datasheet for the Philips 74F620 and 74F623 integrated circuits. The 74F620 is an octal bus transceiver featuring inverting 3-State bus-compatible outputs, while the 74F623 is the non-inverting version of the 74F620. Both devices are designed for asynchronous two-way communication between data buses.
| Supply Voltage | 4.5V to 5.5V |
|---|---|
| Operating Temperature | 0°C to +70°C |
| Output Sink Current | 64mA |
| Output Source Current | 15mA |
| Package Type | 20-pin plastic DIP |
The 74F620 is an inverting octal bus transceiver, while the 74F623 is the non-inverting version.
Yes, the Enable inputs (OEBA and OEAB) can be used to disable the device so that the buses are effectively isolated.
The absolute maximum supply voltage rating is +7.0V.