AT45DB011D-SH-B

Memory IC Overview

The AT45DB011D-SH-B is a non-volatile flash memory IC manufactured by Renesas Electronics Corporation. It features a 1 Mbit storage capacity organized as 264 bytes per page across 512 pages. The device utilizes a single SPI interface with a maximum clock frequency of 66 MHz. It operates within a supply voltage range of 2.7V to 3.6V and supports surface mount installation in an 8-SOIC package. The component is rated for a commercial temperature range of -40°C to +85°C.

Memory IC Feature Summary

• Non-volatile DataFlash architecture providing reliable code and data storage
• Single SPI serial interface for simplified system integration
• Standard block architecture supporting efficient page erase operations

Memory IC Applications

• Embedded systems requiring compact non-volatile storage
• Industrial control applications with moderate data logging needs
• Consumer electronics utilizing serial flash memory

Memory IC Procurement Notes

Verify the specific suffix 'B' against official Renesas documentation, as standard listings often reference the 'T' (tape and reel) variant. Confirm current manufacturing status, as this model may be obsolete or superseded by newer series such as the AT45DB021E. Ensure compatibility with existing PCB footprints and software drivers designed for the 1Mbit density class before procurement.

Memory IC Selection Notes

Select this component when a 1Mbit capacity is sufficient for application requirements. The 66 MHz SPI speed offers adequate performance for many embedded controllers. Consider the 8-SOIC package dimensions for board space constraints. Evaluate if the 2.7V minimum voltage aligns with the system power rails, noting that lower voltage options exist in other product families.

Memory IC Part Context

This part belongs to the AT45DBxxx DataFlash family, which integrates flash memory with SRAM buffers to enhance data throughput. The 1Mbit density positions it as a cost-effective solution for smaller firmware storage tasks compared to higher-density counterparts like the 4Mbit or 16Mbit variants in the same series.

Memory IC Replacement Considerations

Public confirmed substitute: AT45DB021E-SHN-T.