AT45DB081D-SU-SL383-AD

Memory IC Overview

The AT45DB081D-SU-SL383-AD is an 8 Mbit serial Flash memory device manufactured by Renesas Electronics Corporation. It utilizes a RapidS serial interface compatible with SPI modes 0 and 3, supporting clock frequencies up to 66 MHz. The memory array consists of 4,096 pages, each organized as either 256 bytes or 264 bytes, with user-configurable page sizes. The device operates on a single supply voltage ranging from 2.5 V to 3.6 V (or 2.7 V to 3.6 V) and includes two SRAM data buffers for efficient read-modify-write operations. It features hardware and software data protection mechanisms, including sector lockdown and a security register.

Memory IC Feature Summary

• Supports RapidS serial interface with SPI compatibility for high-speed sequential access
• Includes two SRAM data buffers to enable continuous data streaming and EEPROM emulation
• Offers flexible erase options at the page, block, sector, and chip levels
• Provides hardware and software data protection with individual sector lockdown capabilities

Memory IC Applications

• Digital voice storage applications
• Image data storage systems
• Program code shadowing and execution
• General-purpose data storage in industrial environments

Memory IC Procurement Notes

Verify component authenticity through official manufacturer channels or authorized distributors. Confirm that the specific ordering suffix matches the required package type and voltage specifications. Ensure compliance with environmental regulations such as RoHS and lead-free requirements. Check for obsolescence notices or last-time buy notifications prior to finalizing procurement plans.

Memory IC Selection Notes

Select this component when a low-pin-count, serial-access non-volatile memory solution is required. It is suitable for designs needing EEPROM-like byte-level alterability without complex parallel interfaces. Consider the available page size configurations and the need for sector protection features during system architecture planning.

Memory IC Part Context

This part belongs to the AT45DB081D DataFlash series, designed for high-density, low-power storage. Originally developed by Adesto Technologies, the product line was acquired by Microchip Technology and later integrated into Renesas Electronics. The series is optimized for commercial and industrial applications requiring reliable data retention and simplified hardware layouts.

Memory IC Replacement Considerations

Public confirmed substitute part numbers: AT45DB081E-MHN-T, AT45DB081E-SSHN-T.