Overview
The AT45DB321D-SU-SL383, produced by Adesto Technologies, is a 2.5V or 2.7V serial interface, sequential access flash memory. This device is ideally suited for a wide variety of digital applications, including voice, image, program code, and data storage. It features the RapidS serial interface, which is SPI compatible and supports high-speed operations up to 66MHz. The AT45DB321D is designed for commercial and industrial applications where high density, low pin count, low voltage, and low power consumption are essential.
Key Specifications
| Parameter | Value |
|---|---|
| Voltage Supply | 2.5V - 3.6V or 2.7V - 3.6V |
| Serial Interface | RapidS, SPI compatible modes 0 and 3 |
| Maximum Clock Frequency | 66MHz |
| Page Size | User configurable: 512 bytes or 528 bytes |
| Number of Pages | 8,192 pages |
| SRAM Data Buffers | Two buffers, each 512/528 bytes |
| Erase Options | Page erase (512 bytes), Block erase (4KB), Sector erase (64KB), Chip erase (32Mb) |
| Active Read Current | 7mA typical |
| Standby Current | 25μA typical |
| Deep Power Down Current | 15μA typical |
| Data Retention | 20 years |
| Program/Erase Cycles | 100,000 cycles per page minimum |
| Temperature Range | Industrial temperature range |
| Packaging | Green (Pb/halide-free/RoHS compliant) options |
Key Features
- Single power supply for both program and read operations.
- Supports high-speed operations with RapidS serial interface up to 66MHz.
- User configurable page size: 512 bytes or 528 bytes.
- Two SRAM data buffers allowing continuous data stream writing and receiving data while reprogramming the flash array.
- Flexible erase options: page, block, sector, and chip erase.
- Low power dissipation with typical active read current of 7mA and standby current of 25μA.
- Hardware and software data protection features including individual sector lockdown and a 128-byte security register.
- Ideal for code shadowing applications.
Applications
The AT45DB321D-SU-SL383 is suitable for a variety of applications, including:
- Digital voice and image storage.
- Program code storage.
- Data storage in commercial and industrial environments.
- Code shadowing applications where continuous read capability is required.
- Systems requiring high-density, low-pin-count, low-voltage, and low-power flash memory solutions.
Q & A
- What is the voltage supply range for the AT45DB321D-SU-SL383? The device operates from a single power supply of 2.5V - 3.6V or 2.7V - 3.6V.
- What is the maximum clock frequency supported by the RapidS serial interface? The RapidS serial interface supports frequencies up to 66MHz.
- How many pages of memory does the AT45DB321D-SU-SL383 have? The device has 8,192 pages, each configurable to 512 bytes or 528 bytes.
- What are the erase options available for the AT45DB321D-SU-SL383? The device supports page erase (512 bytes), block erase (4KB), sector erase (64KB), and chip erase (32Mb).
- What is the typical active read current of the AT45DB321D-SU-SL383? The typical active read current is 7mA.
- Does the AT45DB321D-SU-SL383 support data protection features? Yes, it includes hardware and software data protection features such as individual sector lockdown and a 128-byte security register.
- What is the data retention period for the AT45DB321D-SU-SL383? The data retention period is 20 years.
- How many program/erase cycles does the AT45DB321D-SU-SL383 support per page? The device supports a minimum of 100,000 program/erase cycles per page.
- Is the AT45DB321D-SU-SL383 suitable for industrial applications? Yes, it operates within the industrial temperature range.
- What kind of packaging options are available for the AT45DB321D-SU-SL383? The device is available in green (Pb/halide-free/RoHS compliant) packaging options.
