74LVC544APW,118

Overview

The NXP USA Inc. 74LVC544APW,118 is an octal registered inverting transceiver featuring two sets of D-type latches for temporary data storage in either direction. It operates with a supply voltage range from 1.2 V to 3.6 V and includes separate latch enable inputs (LEAB, LEBA) and output enable inputs (OEAB, OEBA) for independent control of input and output directions. The device supports partial power-down applications by maintaining high-impedance inputs/outputs when VCC is 0V.

Feature Summary

• Octal D-type registered transceiver with back-to-back registers for bidirectional data flow storage
• Separate controls for data flow direction allowing independent input and output management
• Supports partial power-down applications with high-impedance I/O states during zero supply voltage

Applications

• Interfacing between logic families requiring different voltage levels
• Temporary storage of data flow in bidirectional communication systems
• Applications requiring independent control of data direction and output states

Procurement Notes

Verify the specific package variant required, as the 74LVC544A family includes SO24, SSOP24, and TSSOP24 options. Confirm temperature range specifications match application requirements, noting availability for -40°C to +85°C and -40°C to +125°C ranges. Ensure design accounts for the specified ESD protection levels and operating conditions defined in the product datasheet.

Selection Notes

Select this component for designs requiring octal bidirectional data transfer with registered storage capabilities. The wide supply voltage range accommodates various low-voltage logic standards. Consider the separate enable inputs for precise control over data direction and output states. Verify that the TSSOP24 package dimensions fit the PCB layout constraints.

Part Context

This part belongs to the 74LVC series of CMOS logic devices, known for low power consumption and compatibility with TTL levels. The LVC family provides robust performance across a wide voltage range, making it suitable for modern low-voltage digital systems requiring reliable signal transmission and storage.

Replacement Considerations

Check for equivalent parts within the 74LVC544A family offering different packages or temperature ranges. Verify functional compatibility regarding pinout and electrical characteristics before substitution.