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SN74ALS1640A - OCTAL BUS TRANSCEIVERS

Description

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

Features

  • inverting logic, while the SN74ALS1645A features noninverting logic. The SN74ALS1640A and SN74ALS1645A are characterized for operation from 0°C to 70°C. INPUTS OE DIR L L L H H X.

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Full PDF Text Transcription

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SN74ALS1640A, SN74ALS1645A OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS SDAS246B – DECEMBER 1982 – REVISED FEBRUARY 1997 D Bidirectional Bus Transceivers in High-Density 20-Pin Packages D Lower-Power Versions of SN74ALS640B and SN74ALS645A D Package Options Include Plastic Small-Outline (DW) Packages and Standard Plastic (N) 300-mil DIPs DW OR N PACKAGE (TOP VIEW) DIR 1 A1 2 A2 3 A3 4 A4 5 20 VCC 19 OE 18 B1 17 B2 16 B3 description A5 6 A6 7 15 B4 14 B5 These octal bus transceivers are designed for asynchronous two-way communication between data buses. These devices transmit data from the A7 8 A8 9 GND 10 13 B6 12 B7 11 B8 A bus to the B bus or from the B bus to the A bus, depending on the level at the direction-control (DIR) input.
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