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16-Bit Registered Transceivers With 3-State Outputs


Package | PIN: DL | 56
Temp: I (-40 to 85)
Carrier: Cut Tape
Qty Price
1-9 $2.19
10-24 $1.96
25-99 $1.82
100-249 $1.59
250-499 $1.47
500-749 $1.23
750-999 $1.01
1000+ $0.93


  • Members of the Texas Instruments WidebusTM Family
  • Inputs Are TTL-Voltage Compatible
  • 3-State True Outputs
  • Flow-Through Architecture Optimizes PCB Layout
  • Distributed VCC and GND Pin Configurations Minimize High-Speed Switching Noise
  • EPICTM (Enhanced-Performance Implanted CMOS) 1-m Process
  • 500-mA Typical Latch-Up Immunity at 125°C
  • Package Options Include Plastic Thin Shrink Small-Outline (DGG) and 300-mil Shrink Small-Outline (DL) Packages Using 25-mil Center-to-Center Pin Spacings, and 380-mil Fine-Pitch Ceramic Flat (WD) Packages Using 25-mil Center-to-Center Pin Spacings


EPIC and Widebus are trademarks of Texas Instruments Incorporated.

Texas Instruments  74ACT16543DLR

The 'ACT16543 are 16-bit registered transceivers that contain two sets of D-type latches for temporary storage of data flowing in either direction. The 'ACT16543 can be used as two 8-bit transceivers or one 16-bit transceiver. Separate latch enable ( or ) and output-enable ( or ) inputs are provided for each register to permit independent control in either direction of data flow.

The A-to-B enable () and inputs must be low to enter data from A or to output data to B. Having CEAB\ low and LEAB\ low makes the A-to-B latches transparent; a subsequent low-to-high transition at puts the A latches in the storage mode. Data flow from B to A is similar, but requires using the , , and inputs.

The 74ACT16543 is packaged in TI's shrink small-outline package, which provides twice the functionality of standard small-outline packages in the same printed-circuit-board area.

The 54ACT16543 is characterized for operation over the full military temperature range of -55°C to 125°C. The 74ACT16543 is characterized for operation from -40°C to 85°C.