Overview
The AT45DB041D-SU-SL954 is a 4-megabit serial-interface Flash memory device manufactured by Adesto Technologies. This device is ideally suited for a wide variety of digital voice, image, program code, and data-storage applications. It operates at voltages ranging from 2.5V to 3.6V and supports the RapidS serial interface, which is SPI compatible for frequencies up to 66 MHz. The device features a robust memory architecture with 2,048 pages, each configurable to either 256 or 264 bytes, and includes two SRAM buffers for efficient data handling.
Key Specifications
| Parameter | Value |
|---|---|
| Memory Size | 4 Mbit (2,048 pages x 256/264 bytes) |
| Supply Voltage | 2.5V to 3.6V |
| Clock Frequency | Up to 66 MHz |
| Interface | Serial (RapidS, SPI compatible) |
| Package Type | 8-SOIC (0.209", 5.30mm Width) |
| Number of Pins | 8 |
| Program/Erase Cycles | 100,000 cycles per page minimum |
| Data Retention | 20 years |
| Temperature Range | -40°C to +85°C (Industrial) |
| Compliance | RoHS Compliant, Pb/Halide-free |
Key Features
- High-Speed Interface: Supports RapidS serial interface, which is SPI compatible for frequencies up to 66 MHz.
- SRAM Buffers: Includes two SRAM buffers of 256/264 bytes each, allowing for continuous data stream writing and reading while a page in the main memory is being reprogrammed.
- Security Features: Sector lockdown for secure code and data storage, 128-byte security register with 64-byte user-programmable space, and a unique 64-byte device identifier.
- Self-Timed Operations: All programming and erase cycles are self-timed.
- Flexible Memory Architecture: Memory array divided into sectors, blocks, and pages, allowing for chip, sector, block, or page-level erase operations.
Applications
The AT45DB041D-SU-SL954 is suitable for a variety of applications, including:
- Digital voice storage
- Image storage
- Program code storage
- Data storage in industrial and consumer electronics
- Secure code and data storage due to its sector lockdown and security register features
Q & A
- What is the memory size of the AT45DB041D-SU-SL954?
The memory size is 4 Mbit, organized as 2,048 pages of 256 or 264 bytes each.
- What is the operating voltage range of the AT45DB041D-SU-SL954?
The device operates from 2.5V to 3.6V.
- What type of interface does the AT45DB041D-SU-SL954 support?
The device supports the RapidS serial interface, which is SPI compatible up to 66 MHz.
- How many program/erase cycles can the AT45DB041D-SU-SL954 handle per page?
The device can handle a minimum of 100,000 program/erase cycles per page.
- What is the data retention period of the AT45DB041D-SU-SL954?
The data retention period is 20 years.
- What is the temperature range for the AT45DB041D-SU-SL954?
The device operates in the industrial temperature range of -40°C to +85°C.
- Is the AT45DB041D-SU-SL954 RoHS compliant?
Yes, the device is RoHS compliant and Pb/Halide-free.
- What are the key security features of the AT45DB041D-SU-SL954?
The device features sector lockdown, a 128-byte security register with 64-byte user-programmable space, and a unique 64-byte device identifier.
- How does the AT45DB041D-SU-SL954 handle programming and erase cycles?
All programming and erase cycles are self-timed.
- What types of erase operations are supported by the AT45DB041D-SU-SL954?
The device supports chip, sector, block, or page-level erase operations.
- What is the purpose of the SRAM buffers in the AT45DB041D-SU-SL954?
The SRAM buffers allow for the receiving of data while a page in the main memory is being reprogrammed and enable continuous data stream writing.
