AT45DQ161-SSHFHD-T

Memory IC Overview

The AT45DQ161-SSHFHD-T is a 16 Mbit NOR Flash memory device manufactured by Renesas Electronics Corporation. It operates within a voltage range of 2.3V to 3.6V and supports Single, Dual, and Quad SPI interfaces with a maximum clock frequency of 85 MHz. The device features a 528-byte binary page architecture organized as 4096 pages. It is housed in an 8-SOIC package and is rated for an extended operating temperature range from -40°C to +105°C.

Memory IC Feature Summary

• Supports Single, Dual, and Quad I/O Serial Peripheral Interface (SPI) operations
• Utilizes a 528-byte binary page mode architecture for data storage
• Operates across an extended industrial temperature range up to 105°C

Memory IC Applications

• Embedded systems requiring high-speed code execution
• Industrial control units needing wide temperature tolerance
• Consumer electronics with space-constrained surface mount designs

Memory IC Procurement Notes

Verify the specific suffix HD against official datasheets to confirm the extended temperature rating of +105°C. Ensure compatibility with existing PCB footprints for the 8-SOIC package. Cross-reference the manufacturer part number directly with Renesas documentation to avoid confusion with similar variants like the standard SHF or non-HD versions.

Memory IC Selection Notes

Select this component when an extended commercial/industrial temperature range up to 105°C is required alongside Quad SPI support. It serves as a direct upgrade to standard temperature variants where thermal resilience is critical. Ensure system power supplies remain stable between 2.3V and 3.6V to maintain reliable read/write operations at 85 MHz speeds.

Memory IC Part Context

This part belongs to the AT45DQ161 series of DataFlash memory devices. It shares architectural similarities with other models in the family but distinguishes itself through the HD suffix, which denotes the extended temperature capability. It complements lower-capacity or lower-speed variants by offering higher throughput via Quad I/O modes.

Memory IC Replacement Considerations

AT45DQ161-SSHF-T is a related variant; however, it typically supports a lower maximum operating temperature (+85°C). Verify if the thermal requirements of the application necessitate the specific HD suffix for +105°C operation before substituting.