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DM74AS640 Datasheet 3-state Octal Bus Transceiver

Manufacturer: Fairchild (now onsemi)

Overview: DM74AS640 3-STATE Octal Bus Transceiver October 1986 Revised March 2000 DM74AS640 3-STATE Octal Bus.

General Description

This advanced Schottky device contains 8 pairs of 3STATE logic elements configured as octal bus transceiver.

This circuit is designed for use in memory, microprocessor systems and in asynchronous bidirectional data buses.

This device transmits data from the A bus to the B bus, or vice versa, depending upon the logic level of the direction control input (DIR).

Key Features

  • s Switching specifications at 50 pF s Switching specifications guaranteed over full temperature and VCC range s Advanced oxide-isolated, ion-implanted Schottky TTL process s Functionally and pin for pin compatible with Schottky, low power Schottky, and advanced low power Schottky TTL counterpart s Improved AC performance over Schottky, low power Schottky, and advanced low power Schottky counterparts s 3-STATE outputs independently controlled on A and B buses s Low output impedance drive to drive.

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DM74AS640 Distributor