SN54ABT16543, SN74ABT16543 16-BIT REGISTERED TRANSCEIVERS WITH 3-STATE OUTPUTS

SCBS087C - FEBRUARY 1991 - REVISED JANUARY 1997

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features

Members of the Texas Instruments Widebus^TM Family
State-of-the-Art EPIC-IIB^TM BiCMOS Design Significantly Reduces Power Dissipation
Latch-Up Performance Exceeds 500 mA Per JEDEC Standard JESD-17
Typical V_OLP (Output Ground Bounce) < 1 V at V_CC = 5 V, T_A = 25°C
Distributed V_CC and GND Pin Configuration Minimizes High-Speed Switching Noise
Flow-Through Architecture Optimizes PCB Layout
High-Drive Outputs (-32-mA I_OH, 64-mA I_OL)
Package Options Include Plastic 300-mil Shrink Small-Outline (DL) and Thin Shrink Small-Outline (DGG) Packages and 380-mil Fine-Pitch Ceramic Flat (WD) Package Using 25-mil Center-to-Center Spacings

Widebus and EPIC-IIB are trademarks of Texas Instruments

description

The 'ABT16543 16-bit registered transceivers contain two sets ofD-type latches for temporary storage of data flowing in eitherdirection. The 'ABT16543 can be used as two 8-bit transceivers or one16-bit transceiver. Separate latch-enable ( or) and output-enable ( or ) inputs areprovided for each register to permit independent control in eitherdirection of data flow.

The A-to-B enable ()input must be low to enter data from A or to output data from B. Ifis low and is low, the A-to-B latches aretransparent; a subsequent low-to-high transition of puts the A latches in the storagemode. With and both low, the 3-state B outputs areactive and reflect the data present at the output of the A latches.Data flow from B to A is similar but requires using the,, and inputs.

To ensure the high-impedance state during power up or power down,should be tiedto V_CC through a pullup resistor; the minimum value of theresistor is determined by the current-sinking capability of thedriver.

The SN54ABT16543 is characterized for operation over the fullmilitary temperature range of -55°C to 125°C. TheSN74ABT16543 is characterized for operation from -40°C to85°C.

Title: 16-BIT REGISTERED TRANSCEIVERS WITH 3-STATE OUTPUTS
Product Family: UNIVERSAL BUS TRANSCEIVERS (UBTS)
Device Functionality: 16-BIT BUS TRANSCEIVER
Orderable Devices: SNJ54ABT16543WD, SN74ABT16543DGGR, SN74ABT16543DL, SN74ABT16543DLR

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View more information about generic part numbers:SN54ABT16543, SN74ABT16543

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