74F649 Datasheet (Philips) - Octal transceiver/register

74F649, Octal transceiver/register

The 74F647 and 74F649 Transceivers/Registers consist of bus transceiver circuits with open-collector outputs, D-type flip-flops, and control circuitry arranged for multiplexed transmission of data directly from the input bus or from the internal registers.

Data on the A or B bus will be clocked into

74F649 Features

* 74F647/74F649

* High impedance NPN base inputs for reduced loading (20µA in High and Low states)

* Independent registers for A and B buses

* Multiplexed real-time and stored data

* Choice of non-inverting and inverting data paths

* Open Collector outputs