74LVC543AD,112

Overview

The 74LVC543AD,112 is an octal D-type registered transceiver manufactured by NXP USA Inc. It operates within a supply voltage range of 1.2 V to 3.6 V and features 5 V tolerant inputs and outputs for interfacing with 5 V logic systems. The device includes back-to-back registers for data storage in either direction, controlled by separate latch enable (LEAB, LEBA) and output enable (OEAB, OEBA) inputs. It provides 3-state non-inverting outputs suitable for bus-oriented applications and maintains high-impedance states when VCC is 0 V. The component is housed in a 24-pin SOIC package.

Feature Summary

• Octal D-type registered transceiver with back-to-back registers for temporary data storage
• Separate controls for independent data flow direction and latching operations
• 5 V tolerant inputs and outputs compatible with 5 V logic interfaces
• High-impedance state maintained during power-off conditions

Applications

• Bus-oriented applications requiring bidirectional data transfer
• Interfacing low-voltage logic with 5 V logic systems
• Temporary storage of data flow in digital circuits

Procurement Notes

Verify the specific ordering suffix '112' against current manufacturer documentation to confirm package type and temperature range specifications. Confirm RoHS compliance status as indicated in the datasheet. Ensure that the procurement source provides valid traceability for the NXP Semiconductors product line. Check for any recent Customer Product/Process Change Notifications regarding this part number.

Selection Notes

Select this component for designs requiring octal width data transmission with internal registration capabilities. The LVC series offers low-power consumption and direct interface with TTL levels. Consider the operating temperature range of -40 °C to +125 °C for industrial environments. Verify that the required propagation delay and drive strength meet the system timing constraints at the target supply voltage.

Part Context

This device belongs to the 74LVC543A family of octal registered transceivers. It is designed as a high-performance, low-power, low-voltage Si-gate CMOS device. The family is superior to most advanced CMOS compatible TTL families. The specific AD variant denotes the SOIC-24 plastic package configuration.

Replacement Considerations

The 74LVC543ADB is available in an SSOP24 package. The 74LVC543APW is offered in a TSSOP24 package. The 74LVC543ABQ is provided in a DHVQFN24 package. All variants share identical electrical characteristics and functionality.