規格
| 屬性 | 價值 |
| Package / Case | Tape & Reel (TR) |
| Part Status | Obsolete |
| Memory Type | Non-Volatile |
| Memory Format | FLASH |
| Technology | FLASH |
| Memory Size | 2Mb (264 Bytes x 1024 pages) |
| Memory Interface | SPI |
| Clock Frequency | 66 MHz |
| Write Cycle Time - Word Page | 4ms |
| Voltage - Supply | 2.7V ~ 3.6V |
| Operating Temperature | -40°C ~ 85°C (TC) |
| Mounting Type | Surface Mount |
概述
Description
The AT45DB021D-SH-T is a member of the AT45DB family, produced by Microchip Technology. It's a 2-megabit DataFlash memory device designed for a wide range of applications requiring high-density, non-volatile memory storage. The "SH" indicates a specific package type, namely the 8-lead SOIC (Small Outline Integrated Circuit), while the "T" suffix denotes a tape and reel packaging, suitable for high-volume manufacturing.
Key features include:
1. SPI Interface: It uses a Serial Peripheral Interface (SPI) for efficient data transfer.
2. Dual-Voltage Operation: Supports 2.5V and 3.3V power supply, offering flexibility in system design.
3. Sector and Page Erase: Allows for individual sector and page erase functions, enhancing data management.
4. Rapid Data Transfer: Boasts high-speed read and write operations.
5. Security Features: Includes user-programmable security registers for data protection.
The AT45DB021D-SH-T is suitable for applications like firmware storage, data logging, and other embedded systems requiring reliable and flexible memory solutions.
Key features include:
1. SPI Interface: It uses a Serial Peripheral Interface (SPI) for efficient data transfer.
2. Dual-Voltage Operation: Supports 2.5V and 3.3V power supply, offering flexibility in system design.
3. Sector and Page Erase: Allows for individual sector and page erase functions, enhancing data management.
4. Rapid Data Transfer: Boasts high-speed read and write operations.
5. Security Features: Includes user-programmable security registers for data protection.
The AT45DB021D-SH-T is suitable for applications like firmware storage, data logging, and other embedded systems requiring reliable and flexible memory solutions.
Equivalent
The AT45DB021D-SH-T is a 2-Mbit DataFlash memory from Microchip Technology. Equivalent products can include:
1. W25Q20BW by Winbond
2. M25P20 by STMicroelectronics
3. S25FL208K by Cypress Semiconductor
These alternatives offer similar storage capacities and SPI interfaces, but it's crucial to check specific parameters like voltage, temperature range, and package type for full compatibility.
1. W25Q20BW by Winbond
2. M25P20 by STMicroelectronics
3. S25FL208K by Cypress Semiconductor
These alternatives offer similar storage capacities and SPI interfaces, but it's crucial to check specific parameters like voltage, temperature range, and package type for full compatibility.
Features
The AT45DB021D-SH-T is a 2-megabit (256K x 8) Serial DataFlash memory chip from Microchip Technology. Key features include:
1. SPI Interface: Utilizes a Serial Peripheral Interface (SPI) for high-speed data transfer.
2. Flexible Erase Options: Supports page, block, and entire chip erase, facilitating various application needs.
3. Page Program: Allows programming of 264 bytes per page, contributing to efficient memory usage.
4. Dual-Output Read: Enables faster data access by reading two bits per clock cycle.
5. RapidS Protocol: Offers a high-frequency 66 MHz operation.
6. Low Power Consumption: Features low-power read, program, and standby mode for energy efficiency.
7. Data Protection: Includes hardware and software data protection mechanisms.
8. Endurance: Capable of high endurance with 100,000 write/erase cycles.
9. Wide Temperature Range: Operates within a -40°C to +85°C range, suitable for industrial applications.
10. Small Form Factor: Available in an 8-lead SOIC package, optimizing space in compact designs.
These features make the AT45DB021D-SH-T a versatile choice for applications requiring reliable, high-speed flash memory storage.
1. SPI Interface: Utilizes a Serial Peripheral Interface (SPI) for high-speed data transfer.
2. Flexible Erase Options: Supports page, block, and entire chip erase, facilitating various application needs.
3. Page Program: Allows programming of 264 bytes per page, contributing to efficient memory usage.
4. Dual-Output Read: Enables faster data access by reading two bits per clock cycle.
5. RapidS Protocol: Offers a high-frequency 66 MHz operation.
6. Low Power Consumption: Features low-power read, program, and standby mode for energy efficiency.
7. Data Protection: Includes hardware and software data protection mechanisms.
8. Endurance: Capable of high endurance with 100,000 write/erase cycles.
9. Wide Temperature Range: Operates within a -40°C to +85°C range, suitable for industrial applications.
10. Small Form Factor: Available in an 8-lead SOIC package, optimizing space in compact designs.
These features make the AT45DB021D-SH-T a versatile choice for applications requiring reliable, high-speed flash memory storage.
Pinout
The AT45DB021D-SH-T is a 2-megabit DataFlash memory device by Adesto Technologies (formerly Atmel). It features a total of 8 pins. Here is a concise description of its pin functions:
1. CS (Chip Select): Activates the device when low.
2. SCK (Serial Clock): Clocks data in and out during SPI communication.
3. SI (Serial Input): Receives data and commands into the device.
4. SO (Serial Output): Sends data out from the device.
5. WP (Write Protect): Protects the memory from write operations when low.
6. RESET: Resets the device when low.
7. VCC: Power supply for the device.
8. GND: Ground reference for the device.
The AT45DB021D-SH-T uses a Serial Peripheral Interface (SPI) for communication and supports various features such as page and block erase, flexible erase options, and status register read. It is typically used in applications requiring reliable and efficient data storage solutions.
1. CS (Chip Select): Activates the device when low.
2. SCK (Serial Clock): Clocks data in and out during SPI communication.
3. SI (Serial Input): Receives data and commands into the device.
4. SO (Serial Output): Sends data out from the device.
5. WP (Write Protect): Protects the memory from write operations when low.
6. RESET: Resets the device when low.
7. VCC: Power supply for the device.
8. GND: Ground reference for the device.
The AT45DB021D-SH-T uses a Serial Peripheral Interface (SPI) for communication and supports various features such as page and block erase, flexible erase options, and status register read. It is typically used in applications requiring reliable and efficient data storage solutions.
Manufacturer
The AT45DB021D-SH-T is manufactured by Adesto Technologies. Adesto was known for producing non-volatile memory solutions, including flash memory products. The company was involved in developing semiconductor technologies for various applications such as industrial, consumer, and computing markets.
In 2020, Adesto Technologies was acquired by Dialog Semiconductor, which itself was later acquired by Renesas Electronics, a major global semiconductor manufacturer. Renesas specializes in microcontrollers, system-on-chip (SoC) solutions, and a wide array of other semiconductor products for diverse markets, including automotive, industrial, and consumer electronics.
In 2020, Adesto Technologies was acquired by Dialog Semiconductor, which itself was later acquired by Renesas Electronics, a major global semiconductor manufacturer. Renesas specializes in microcontrollers, system-on-chip (SoC) solutions, and a wide array of other semiconductor products for diverse markets, including automotive, industrial, and consumer electronics.
Application
The AT45DB021D-SH-T is a 2-Mbit DataFlash memory device commonly used in applications that require reliable non-volatile storage. Its primary application areas include:
1. Consumer Electronics: Used for storing firmware and user settings in devices like digital cameras, smartphones, and portable media players.
2. Industrial Automation: Employed in data logging and configuration storage for industrial machinery and control systems.
3. Networking Equipment: Utilized in routers and switches for firmware updates and configuration data.
4. Automotive Systems: Supports infotainment systems and electronic control units (ECUs) with data storage needs.
5. Medical Devices: Serves applications requiring secure and reliable data storage, such as patient monitoring systems.
These applications leverage the device's endurance, fast write/read performance, and low power consumption.
1. Consumer Electronics: Used for storing firmware and user settings in devices like digital cameras, smartphones, and portable media players.
2. Industrial Automation: Employed in data logging and configuration storage for industrial machinery and control systems.
3. Networking Equipment: Utilized in routers and switches for firmware updates and configuration data.
4. Automotive Systems: Supports infotainment systems and electronic control units (ECUs) with data storage needs.
5. Medical Devices: Serves applications requiring secure and reliable data storage, such as patient monitoring systems.
These applications leverage the device's endurance, fast write/read performance, and low power consumption.
Package
The AT45DB021D-SH-T is packaged in an 8-lead SOIC (Small Outline Integrated Circuit) form factor. This package is commonly used for surface mounting on PCBs, providing a compact footprint suitable for various electronic applications.
