AT25DF021A-UUNHR-T

Memory IC Overview

The AT25DF021A-UUNHR-T is a 2-Mbit SPI Serial NOR Flash memory device manufactured by Renesas Electronics. It features a storage organization of 256K x 8 bits and supports a maximum clock frequency of 104 MHz. The component operates within a supply voltage range of 1.65 V to 3.6 V. It is housed in an 8-UFDFN (2x3) package with exposed pad. The device is designed for high-temperature applications, supporting an extended operating temperature range up to 125°C.

Memory IC Feature Summary

• Supports Dual-I/O and Multi-I/O modes for enhanced data throughput
• Capable of high-speed serial read operations via SPI interface
• Designed for robust performance in high-temperature environments

Memory IC Applications

• High-temperature embedded systems requiring non-volatile code storage
• Industrial control units with extended thermal requirements
• Automotive electronics components subject to elevated temperatures

Memory IC Procurement Notes

Verify the specific suffix UUNHR-T against official Renesas documentation to confirm the 104 MHz speed grade and high-temperature rating. Ensure the 8-UDFN package dimensions match the target PCB footprint. Confirm RoHS compliance status through current manufacturer declarations prior to integration.

Memory IC Selection Notes

Select this part when dual or multi-I/O support is required alongside high-speed access. The 104 MHz capability distinguishes it from lower-speed variants in the AT25DF021A family. Consider the 8-UDFN package constraints for board space. Validate that the 1.65 V minimum voltage meets system power rail specifications.

Memory IC Part Context

This component belongs to the AT25DF021A series of 2-Mbit SPI Flash memories. The series offers various package options including SOIC, TSSOP, and DFN. The UUNHR-T variant specifically denotes the high-temperature grade and 104 MHz performance level within the broader product line managed by Renesas Electronics.

Memory IC Replacement Considerations

Cross-reference with AT25DF021A-MAHNHR-T for similar DFN packaging but verify if the 85 MHz speed grade suffices. Check AT25DF021A-SSHNHR-T for SOIC alternatives. Ensure functional compatibility regarding command sets and voltage levels before substitution.