SN54ALS645A, SN54AS645, SN74ALS645A, SN74AS645 OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS

SDAS278 - JANUARY 1995

features

Bidirectional Bus Transceivers in High-Density 20-Pin Packages
True Logic
3-State Outputs
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-waycommunication between data buses. These devices transmit data fromthe A bus to the B bus or from the B bus to the A bus, depending onthe level at the direction-control (DIR) input. The output-enable input can beused to disable the device so that the buses are effectivelyisolated.

The -1 version of the SN74ALS645A is identical to the standardversion, except that the recommended maximum I_OL isincreased to 48 mA. There is no -1 version of the SN54ALS645A.

The SN54ALS645A and SN54AS645 are characterized for operation overthe full military temperature range of -55°C to 125°C. TheSN74ALS645A and SN74AS645 are characterized for operation from0°C to 70°C.

Title: OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS
Product Family: UNIVERSAL BUS TRANSCEIVERS (UBTS)
Device Functionality: BUS TRANSCEIVERS
Orderable Devices: SN54ALS645AJ, SNJ54ALS645AFK, SNJ54ALS645AJ, SNJ54ALS645AW, SN54AS645J, SNJ54AS645FK, SNJ54AS645J, SNJ54AS645W, SN74ALS645A-1DW, SN74ALS645A-1DWR, SN74ALS645A-1N, SN74ALS645A-1N3, SN74ALS645ADW, SN74ALS645ADWR, SN74ALS645AN, SN74ALS645AN3, SN74ALS645A-1DW, SN74ALS645A-1DWR, SN74ALS645A-1N, SN74ALS645A-1N3, SN74AS645DW, SN74AS645DWR, SN74AS645N

View the complete PDF datasheet: sdas278.pdf (107 K Bytes) (Requires Acrobat Reader 3.x)

View more information about generic part numbers:SN54ALS645A, SN54AS645, SN74ALS645A, SN74ALS645A-1, SN74AS645

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