Specifications
| Attribute | Value |
| Package | Tray |
| ProductStatus | Obsolete |
| MemoryType | Non-Volatile |
| MemoryFormat | FLASH |
| Technology | FLASH |
| MemorySize | 32Mb (528 Bytes x 8192 pages) |
| MemoryInterface | SPI |
| ClockFrequency | 66 MHz |
| WriteCycleTime-WordPage | 6ms |
| Voltage-Supply | 2.7V ~ 3.6V |
| OperatingTemperature | -40°C ~ 85°C (TC) |
| MountingType | Surface Mount |
| Package/Case | 28-TSSOP (0.465, 11.80mm Width) |
Overview
Description
The AT45DB321D-TU is a 32-megabit, 2.7-volt, serial-interface data Flash memory chip developed by Microchip Technology. This chip is part of the DataFlash family, known for its low-power consumption and high-speed operation. It utilizes a serial peripheral interface (SPI), making it ideal for applications requiring efficient data storage and retrieval.
Key features include a page size of 528 bytes and a total of 8,192 pages, enabling fast page or byte-level read/write operations. It supports both single and dual I/O SPI modes, enhancing data transfer rates. The device offers flexible erase options, including page, block, and sector erase, facilitating efficient memory management.
The AT45DB321D-TU is designed for reliability with features like hardware and software data protection, ensuring data integrity. It also supports deep power-down modes for energy savings. Its compact 8-pin package and wide operating temperature range make it suitable for various applications, from consumer electronics to industrial devices.
Key features include a page size of 528 bytes and a total of 8,192 pages, enabling fast page or byte-level read/write operations. It supports both single and dual I/O SPI modes, enhancing data transfer rates. The device offers flexible erase options, including page, block, and sector erase, facilitating efficient memory management.
The AT45DB321D-TU is designed for reliability with features like hardware and software data protection, ensuring data integrity. It also supports deep power-down modes for energy savings. Its compact 8-pin package and wide operating temperature range make it suitable for various applications, from consumer electronics to industrial devices.
Equivalent
Equivalent products to the AT45DB321D-TU, a 32Mb DataFlash memory chip, include the following:
1. Winbond: W25Q32 series
2. Micron: M25P32 or N25Q32 series
3. Cypress: S25FL032P or S25FL032A series
4. Adesto: AT25DF321A
These alternatives offer similar non-volatile storage capacities and interfaces, but always verify specifications to ensure compatibility with your application.
1. Winbond: W25Q32 series
2. Micron: M25P32 or N25Q32 series
3. Cypress: S25FL032P or S25FL032A series
4. Adesto: AT25DF321A
These alternatives offer similar non-volatile storage capacities and interfaces, but always verify specifications to ensure compatibility with your application.
Features
The AT45DB321D-TU is a 32-megabit DataFlash memory chip designed by Microchip Technology. Key features include:
1. Density and Structure: It offers 32-Mbit of memory organized in 8,192 pages of 528 bytes each, providing a balance of storage capacity and performance.
2. Interface: It supports SPI (Serial Peripheral Interface) for high-speed data transfer, making it compatible with various microcontrollers.
3. Dual-Voltage Operation: It operates at both 2.7V to 3.6V and 1.65V to 1.95V, providing flexibility for different applications.
4. Page and Block Architecture: The device allows for page-level and block-level erase functions, improving data management efficiency.
5. Advanced Programming: Features include continuous read capability through wrap-around mode and built-in error correction for data integrity.
6. Deep Power-Down Mode: This feature reduces power consumption, which is beneficial for battery-operated devices.
7. Security Features: Includes hardware-controlled locking and individual sector protection to safeguard data.
8. Temperature Range: It operates within an industrial temperature range, ensuring reliability in various environments.
Overall, the AT45DB321D-TU is ideal for applications requiring reliable, high-speed data storage with flexibility in power supply and robust security.
1. Density and Structure: It offers 32-Mbit of memory organized in 8,192 pages of 528 bytes each, providing a balance of storage capacity and performance.
2. Interface: It supports SPI (Serial Peripheral Interface) for high-speed data transfer, making it compatible with various microcontrollers.
3. Dual-Voltage Operation: It operates at both 2.7V to 3.6V and 1.65V to 1.95V, providing flexibility for different applications.
4. Page and Block Architecture: The device allows for page-level and block-level erase functions, improving data management efficiency.
5. Advanced Programming: Features include continuous read capability through wrap-around mode and built-in error correction for data integrity.
6. Deep Power-Down Mode: This feature reduces power consumption, which is beneficial for battery-operated devices.
7. Security Features: Includes hardware-controlled locking and individual sector protection to safeguard data.
8. Temperature Range: It operates within an industrial temperature range, ensuring reliability in various environments.
Overall, the AT45DB321D-TU is ideal for applications requiring reliable, high-speed data storage with flexibility in power supply and robust security.
Pinout
The AT45DB321D-TU is a 32-megabit DataFlash memory device. It is typically housed in an 8-pin SOIC package. The pin functions are as follows:
1. CS (Chip Select): Activates the device when low.
2. SCK (Serial Clock): Synchronizes data transfer between the device and the controller.
3. SI (Serial Input): Used to input data and commands.
4. SO (Serial Output): Used to output data.
5. WP (Write Protect): Used to protect the memory from write operations.
6. RESET: Resets the device when pulled low.
7. VCC: Power supply pin.
8. GND: Ground pin.
The device uses a Serial Peripheral Interface (SPI) for communication and supports rapid read and write operations, which is useful in applications requiring high-speed data storage and retrieval.
1. CS (Chip Select): Activates the device when low.
2. SCK (Serial Clock): Synchronizes data transfer between the device and the controller.
3. SI (Serial Input): Used to input data and commands.
4. SO (Serial Output): Used to output data.
5. WP (Write Protect): Used to protect the memory from write operations.
6. RESET: Resets the device when pulled low.
7. VCC: Power supply pin.
8. GND: Ground pin.
The device uses a Serial Peripheral Interface (SPI) for communication and supports rapid read and write operations, which is useful in applications requiring high-speed data storage and retrieval.
Manufacturer
The AT45DB321D-TU is a flash memory chip manufactured by Microchip Technology Inc. Microchip Technology is a leading semiconductor company that designs and produces a wide range of microcontrollers, mixed-signal, analog, and Flash-IP solutions. The company serves various industries, including automotive, industrial, consumer, aerospace, and defense, providing solutions that help design engineers create optimal systems with high performance and reliability.
Application
The AT45DB321D-TU is a 32-megabit DataFlash memory device commonly used in applications requiring reliable, high-density storage and quick data access. Typical application areas include:
1. Embedded Systems: For program code and data storage.
2. Consumer Electronics: In devices like digital cameras, MP3 players, and gaming consoles for storing firmware and multimedia data.
3. Industrial Automation: For logging data and storing configurations in PLCs and other industrial equipment.
4. Networking Equipment: Used in routers and switches for firmware storage.
5. Automotive: For infotainment systems and on-board diagnostics.
6. Medical Devices: For logging patient data and storing device firmware.
Its architecture supports efficient read/write operations, making it suitable for applications demanding frequent data updates.
1. Embedded Systems: For program code and data storage.
2. Consumer Electronics: In devices like digital cameras, MP3 players, and gaming consoles for storing firmware and multimedia data.
3. Industrial Automation: For logging data and storing configurations in PLCs and other industrial equipment.
4. Networking Equipment: Used in routers and switches for firmware storage.
5. Automotive: For infotainment systems and on-board diagnostics.
6. Medical Devices: For logging patient data and storing device firmware.
Its architecture supports efficient read/write operations, making it suitable for applications demanding frequent data updates.
Package
The AT45DB321D-TU is a 32-megabit DataFlash memory chip from Adesto Technologies (formerly Atmel). It comes in a thin small-outline package (TSOP) type. This specific package type is suited for applications requiring a compact form factor and is commonly used in embedded systems for data storage due to its non-volatile nature and SPI interface.
