SN74ABT543A OCTAL REGISTERED TRANSCEIVER WITH 3-STATE OUTPUTS

SCBS464A - JUNE 1992 - REVISED JUNE 1994

features

State-of-the-Art EPIC-IIB ^TM BiCMOS Design Significantly Reduces Power Dissipation
ESD Protection Exceeds 2000 V Per MIL-STD-883C, Method 3015; Exceeds 200 V Using Machine Model (C = 200 pF, R = 0)
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
High-Drive Outputs (-32-mA I_OH, 64-mA I_OL)
Package Options Include Plastic Small-Outline (DW) and Shrink Small-Outline (DB) Packages, and Standard Plastic 300-mil DIPs (JT)

EPIC-IIB is a trademark of Texas Instruments

description

The SN74ABT543A octal transceiver contains two sets of D-typelatches for temporary storage of data flowing in either direction.Separate latch-enable ( or) andoutput-enable ( or ) inputs are provided for eachregister to permit independent control in either direction of dataflow.

The A-to-B enable ()input must be low in order to enter data from A or to output datafrom B. If is low and is low, theA-to-B latches are transparent; a subsequent low-to-high transitionof puts the Alatches in the storage mode. With and both low, the3-state B outputs are active and reflect the data present at theoutput of the A latches. Data flow from B to A is similar butrequires 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 SN74ABT543A is packaged in TI's shrink small-outline package(DB), which provides the same I/O pin count and functionality ofstandard small-outline packages in less than half theprinted-circuit-board area.

The SN74ABT543A is characterized for operation from -40°C to85°C.

Title: OCTAL REGISTERED TRANSCEIVER WITH 3-STATE OUTPUTS
Product Family: LATCHED TRANSCEIVERS
Device Functionality: OCTAL REGISTERED BUS TRANSCEIVER
Orderable Devices: SN74ABT543ADBLE, SN74ABT543ADW, SN74ABT543ADWR, SN74ABT543ANT, SN74ABT543APWLE

View the complete PDF datasheet: scbs464a.pdf (102 K Bytes) (Requires Acrobat Reader 3.x)

View more information about generic part numbers:SN74ABT543A

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