Specifications
| Attribute | Value |
| Package | Tube |
| 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 | 8-SOIC (0.209, 5.30mm Width) |
Overview
Description
The AT45DB321D-SU is a 32-megabit DataFlash memory chip from Microchip Technology, specifically designed for a wide range of storage applications. It utilizes an advanced SPI (Serial Peripheral Interface) for efficient data transmission. This device features a small sector architecture, allowing for flexible data storage, easy management, and efficient memory utilization.
Key characteristics include its fast read and write capabilities, with a maximum clock speed of 66 MHz, enabling quick data access. It supports both page and block erase functions, offering enhanced versatility in handling data storage needs. The chip is capable of storing data even in the absence of power, thanks to its non-volatile memory design.
The AT45DB321D-SU is housed in an 8-SOIC (Small Outline Integrated Circuit) package, making it suitable for compact and space-constrained applications. Operating across a wide temperature range and supporting various power supply voltages, it’s suitable for industrial, consumer, and automotive applications. Its endurance, data retention capabilities, and reliability make it a robust option for embedded systems requiring dependable storage solutions.
Key characteristics include its fast read and write capabilities, with a maximum clock speed of 66 MHz, enabling quick data access. It supports both page and block erase functions, offering enhanced versatility in handling data storage needs. The chip is capable of storing data even in the absence of power, thanks to its non-volatile memory design.
The AT45DB321D-SU is housed in an 8-SOIC (Small Outline Integrated Circuit) package, making it suitable for compact and space-constrained applications. Operating across a wide temperature range and supporting various power supply voltages, it’s suitable for industrial, consumer, and automotive applications. Its endurance, data retention capabilities, and reliability make it a robust option for embedded systems requiring dependable storage solutions.
Equivalent
The AT45DB321D-SU is a 32-Mb DataFlash memory chip from Microchip Technology. Equivalent products may include:
1. Winbond W25Q32JV: A 32-Mb Serial NOR Flash memory.
2. Macronix MX25L3206E: Another 32-Mb Serial NOR Flash.
3. ISSI IS25LP032: A 32-Mb Serial NOR Flash.
4. Cypress (Infineon) S25FL032P: A 32-Mb Serial NOR Flash.
These alternatives offer similar memory capacities and SPI interfaces but may differ in terms of additional features and specifications. Verify compatibility with your application before replacement.
1. Winbond W25Q32JV: A 32-Mb Serial NOR Flash memory.
2. Macronix MX25L3206E: Another 32-Mb Serial NOR Flash.
3. ISSI IS25LP032: A 32-Mb Serial NOR Flash.
4. Cypress (Infineon) S25FL032P: A 32-Mb Serial NOR Flash.
These alternatives offer similar memory capacities and SPI interfaces but may differ in terms of additional features and specifications. Verify compatibility with your application before replacement.
Features
The AT45DB321D-SU is a 32-megabit DataFlash memory device from Microchip Technology. It features a serial peripheral interface (SPI) for fast data transmission. The device supports a dual-interface, which allows for standard SPI and RapidS serial modes to enhance data throughput. It offers flexible erase and program options, with capabilities for page, block, and sector erase operations. The device boasts a page size of 528 bytes and supports full-chip erase. It operates with a supply voltage range of 2.7V to 3.6V and has a low-power standby mode to conserve energy. The AT45DB321D-SU includes integrated security features such as hardware and software data protection mechanisms. It also supports deep power-down mode and sector lockdown functionality for added security. The memory is suitable for applications requiring high-density storage with reliability, like embedded systems and consumer electronics. Packaged in an 8-lead SOIC form factor, it is designed for robust performance across a temperature range of -40°C to 85°C.
Pinout
The AT45DB321D-SU is a 32-megabit (4MB) DataFlash memory device manufactured by Adesto Technologies (formerly by Atmel). It is organized in 8,192 pages of 528 bytes each. This device uses an SPI (Serial Peripheral Interface) for communication.
The pin count for the AT45DB321D-SU in the SOIC (Small Outline Integrated Circuit) package is 8 pins. The functions of these pins are as follows:
1. CS (Chip Select): Activates the device.
2. SCK (Serial Clock): Provides the clock pulses for data transfer.
3. SI (Serial Input): Input data line.
4. SO (Serial Output): Output data line.
5. WP (Write Protect): Protects the status register and memory from being altered inadvertently.
6. RESET: Resets the device.
7. VCC: Power supply.
8. GND: Ground reference.
These pins allow the AT45DB321D-SU to interface with microcontrollers and other digital systems for data storage and retrieval.
The pin count for the AT45DB321D-SU in the SOIC (Small Outline Integrated Circuit) package is 8 pins. The functions of these pins are as follows:
1. CS (Chip Select): Activates the device.
2. SCK (Serial Clock): Provides the clock pulses for data transfer.
3. SI (Serial Input): Input data line.
4. SO (Serial Output): Output data line.
5. WP (Write Protect): Protects the status register and memory from being altered inadvertently.
6. RESET: Resets the device.
7. VCC: Power supply.
8. GND: Ground reference.
These pins allow the AT45DB321D-SU to interface with microcontrollers and other digital systems for data storage and retrieval.
Manufacturer
The AT45DB321D-SU is a flash memory chip manufactured by Adesto Technologies. Adesto Technologies specializes in providing innovative semiconductor and embedded systems solutions. The company focuses on the development and supply of advanced memory and storage products, catering to a variety of applications including industrial, consumer, and communications markets. Adesto's products are known for their low power consumption and high performance, making them suitable for a wide range of use cases in the Internet of Things (IoT) and other emerging technology sectors.
Application
The AT45DB321D-SU is a 32-megabit DataFlash memory, commonly used in applications requiring reliable non-volatile storage with fast read and write capabilities. Key application areas include embedded systems, where it serves as a storage medium for firmware, configuration data, and system logs. It is also utilized in consumer electronics for storing user settings, multimedia files, and application data. In industrial applications, it can be used for data logging, parameter storage, and system updates. Its small form factor and low power consumption make it suitable for portable devices, and its ability to endure harsh environments lends itself well to automotive and aerospace applications.
Package
The AT45DB321D-SU is a 32-megabit DataFlash memory device from Adesto Technologies (formerly Atmel, now part of Microchip Technology). The package type for the AT45DB321D-SU is an 8-pin SOIC (Small Outline Integrated Circuit), which is a surface-mount package.
