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SN74ALS640B - OCTAL BUS TRANSCEIVERS

Download the SN74ALS640B datasheet PDF (SN74AS640 included). The manufacturer datasheet provides complete specifications, pinout details, electrical characteristics, and typical applications for octal bus transceivers.

Description

These octal bus transceivers are designed for asynchronous two-way communication between data buses.

These devices transmit data from the A bus to the B bus or from the B bus to the A bus, depending upon the level at the direction-control (DIR) input.

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Note: The manufacturer provides a single datasheet file (SN74AS640-etcTI.pdf) that lists specifications for multiple related part numbers.

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Full PDF Text Transcription

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SN54ALS640B, SN54AS640, SN74ALS640B, SN74AS640 OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS SDAS122A – DECEMBER 1983 – REVISED JANUARY 1995 • Bidirectional Bus Transceivers in High-Density 20-Pin Packages • Inverting Logic • Package Options Include Plastic Small-Outline (DW) Packages, Ceramic Chip Carriers (FK), and Standard Plastic (N) and Ceramic (J) 300-mil DIPs description These octal bus transceivers are designed for asynchronous two-way communication between data buses. These devices transmit data from the A bus to the B bus or from the B bus to the A bus, depending upon the level at the direction-control (DIR) input. The output-enable (OE) input can be used to disable the device so that the buses are effectively isolated. SN54ALS640B, SN54AS640 . . .
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