Overview
The AT45DB321D-SU-2.5, produced by Microchip Technology, is a 2.5-volt or 2.7-volt serial-interface sequential access Flash memory. This device is ideally suited for a wide variety of digital voice-, image-, program code-, and data-storage applications. It features the RapidS serial interface, which is SPI compatible and supports frequencies up to 66 MHz, making it suitable for high-speed operations.
Key Specifications
| Parameter | Value |
|---|---|
| Memory Type | DataFLASH |
| Memory Size | 32 Mbit (8192 pages x 528 bytes) |
| Speed | 66 MHz |
| Interface | SPI RapidS |
| Voltage - Supply | 2.5 V ~ 3.6 V |
| Operating Temperature | -40°C ~ 85°C |
| Package | 8-SOIC |
| Active Read Current | 7 mA (typical) |
| Standby Current | 25 µA (typical) |
| Deep Power Down Current | 15 µA (typical) |
| Program/Erase Cycles | 100,000 cycles per page (minimum) |
| Data Retention | 20 years |
Key Features
- High-Speed Interface: Supports RapidS serial interface with SPI compatibility up to 66 MHz.
- Low Power Dissipation: Typical active read current of 7 mA, standby current of 25 µA, and deep power down current of 15 µA.
- Flexible Erase Options: Page erase (512 bytes), block erase (4KB), sector erase (64KB), and chip erase (32Mb).
- SRAM Buffers: Two SRAM data buffers of 512/528 bytes each, allowing data reception while reprogramming the flash array.
- Security Features: Individual sector lockdown, 128-byte security register, 64-byte user programmable space, and a unique 64-byte device identifier.
- Code Shadowing: Ideal for code shadowing applications due to its sequential access and high-speed interface.
- Environmental Compliance: Green (Pb/halide-free/RoHS compliant) packaging options.
Applications
The AT45DB321D-SU-2.5 is suitable for a variety of applications, including:
- Digital voice storage
- Image storage
- Program code storage
- Data storage
- Code shadowing applications
Q & A
- What is the memory size of the AT45DB321D-SU-2.5?
The memory size is 32 Mbit, organized as 8192 pages of 528 bytes each. - What is the operating voltage range of the AT45DB321D-SU-2.5?
The operating voltage range is 2.5 V ~ 3.6 V. - What is the maximum clock frequency supported by the AT45DB321D-SU-2.5?
The maximum clock frequency is 66 MHz. - What type of interface does the AT45DB321D-SU-2.5 use?
The device uses the RapidS serial interface, which is SPI compatible. - What are the typical current consumptions for active read, standby, and deep power down modes?
Typical active read current is 7 mA, standby current is 25 µA, and deep power down current is 15 µA. - How many program/erase cycles does the AT45DB321D-SU-2.5 support per page?
The device supports a minimum of 100,000 program/erase cycles per page. - What is the data retention period of the AT45DB321D-SU-2.5?
The data retention period is 20 years. - Does the AT45DB321D-SU-2.5 have any security features?
Yes, it includes individual sector lockdown, a 128-byte security register, 64-byte user programmable space, and a unique 64-byte device identifier. - What are the environmental compliance standards for the AT45DB321D-SU-2.5?
The device is green (Pb/halide-free/RoHS compliant). - What is the operating temperature range of the AT45DB321D-SU-2.5?
The operating temperature range is -40°C ~ 85°C.
