AT45DQ161-SSHD2B-T

Memory IC Overview

The AT45DQ161-SSHD2B-T is a 16 Mbit DataFlash memory device manufactured by Renesas Electronics Corporation. It utilizes an SPI interface with support for Single, Dual, and Quad I/O modes to achieve high-speed data transfer rates up to 85 MHz. The component features a non-volatile flash memory architecture organized into pages of 528 bytes each, totaling 4096 pages. It operates within a supply voltage range of 2.3 V to 3.6 V and is rated for an industrial temperature range of -40°C to +85°C. The device is housed in an 8-SOIC package with a narrow body width of 3.90 mm.

Memory IC Feature Summary

• Dual SRAM buffer architecture designed to optimize data logging efficiency and reduce processor overhead.
• Supports Single, Dual, and Quad SPI interfaces for flexible system integration and high-speed read operations.
• Advanced power management capabilities including deep power down mode to minimize energy consumption.

Memory IC Applications

• Data logging systems requiring efficient storage of sensor readings or event records.
• Embedded applications needing reliable code storage for microcontrollers.
• Industrial control units utilizing SPI-based communication protocols.

Memory IC Procurement Notes

Verify the specific suffix 'SSHD2B' against official Renesas documentation to confirm package dimensions and tape/reel specifications. Ensure compatibility with existing PCB footprints for the 8-SOIC narrow variant. Confirm that the required operating voltage and temperature ranges align with the target application environment before finalizing procurement decisions.

Memory IC Selection Notes

Select this component when dual SPI interface support (Single/Dual/Quad) is required alongside the specific 528-byte page size architecture. It is suitable for designs prioritizing data logging efficiency through its dual buffer system. Compare against the AT45DB161E series if only single SPI interface is sufficient, as the DQ variant offers enhanced throughput options via quad I/O.

Memory IC Part Context

This part belongs to the AT45DQ161 family of DataFlash memories, which are engineered for system-enhancing code and data storage. The family is characterized by its advanced dual SRAM buffer design, which facilitates seamless data transfers between the flash array and the host processor. This architecture distinguishes it from standard serial flash devices by simplifying software development and improving overall system performance during write-intensive operations.

Memory IC Replacement Considerations

AT45DQ161-SSHF-T