AT45DB021E-SHN-B

The AT45DB021E-SHN-B is a member of the Atmel (now Microchip Technology) family of SPI (Serial Peripheral Interface) serial flash memory devices. It offers a storage capacity of 2 megabits (256 kilobytes), suitable for applications requiring non-volatile memory for data logging, firmware storage, or small program storage.
Key features include:
1. Architecture: The device utilizes a page-oriented architecture, allowing for efficient data writing and erasing. It supports page, block, and sector erase commands.
2. Performance: With a typical clock frequency of up to 85 MHz, it provides fast data access and transfer rates, enhancing system performance.
3. Reliability: The device supports at least 100,000 program/erase cycles per page and includes built-in error correction code (ECC) to ensure data integrity.
4. Low Power Consumption: Designed for low power applications, it offers power-saving modes and operates over a wide voltage range (2.3V to 3.6V).
5. Package: The "-SHN-B" suffix indicates a specific package type, suitable for surface-mount technology.
This flash memory is ideal for embedded systems where compact size, reliability, and fast performance are crucial.

The AT45DB021E-SHN-B is a 2Mb DataFlash memory from Microchip. Equivalent products include:
1. Winbond W25Q20EW - 2Mb NOR Flash.
2. Macronix MX25V2035F - 2Mb Serial NOR Flash.
3. ISSI IS25LP020D - 2Mb Serial Flash.
These alternatives offer similar storage capacities and are commonly used in applications requiring reliable non-volatile memory. However, when considering replacements, it's crucial to verify compatibility in terms of pin configuration, voltage, speed, and other specifications.

The AT45DB021E-SHN-B is a 2-megabit DataFlash memory from Microchip Technology, featuring a serial interface with SPI protocol. It offers flexible erase and program capabilities, including a page size of 256 bytes and a block size of 4KB. The device operates with a low voltage range of 1.65V to 3.6V, ensuring low power consumption, which is ideal for battery-powered applications.
Key features include:
1. Dual-Interface Options: Supports both standard SPI and RapidS serial interface modes, allowing high-speed data transfers up to 85 MHz.

2. Data Protection: Equipped with security features such as hardware and software data protection, including a write-protect pin and user-programmable security registers.
3. Endurance and Reliability: Offers 100,000 program/erase cycles per page and data retention of up to 20 years, ensuring long-term data reliability.
4. Integrated Features: Includes a built-in buffer for efficient data handling and supports multiple power modes for energy efficiency.
These features make it suitable for applications requiring reliable and efficient non-volatile memory, such as industrial control, automotive systems, and consumer electronics.

The AT45DB021E-SHN-B is a 2-Megabit DataFlash memory from Microchip Technology. It comes in an 8-pin configuration, typically in an SOIC-8 package. Here's a brief overview of its pin functions:
1. CS (Chip Select): This pin activates the device when low, allowing communication.
2. SCK (Serial Clock): This pin provides the clock pulses for communication.
3. SI (Serial Input): Also known as MOSI (Master Out Slave In), it's used to send data to the device.
4. SO (Serial Output): Also known as MISO (Master In Slave Out), it's used to read data from the device.
5. RESET: Resets the memory device.
6. WP (Write Protect): Disables write operations when low.
7. VCC: Power supply pin for the device.
8. GND: Ground connection.
This device is used for storing data and supports SPI (Serial Peripheral Interface) communication, making it suitable for applications requiring non-volatile storage with fast read and write capabilities.

The AT45DB021E-SHN-B is manufactured by Adesto Technologies, which is now part of Dialog Semiconductor, a subsidiary of Renesas Electronics Corporation. Adesto Technologies was known for its expertise in non-volatile memory solutions, specifically for data storage in industrial and Internet of Things (IoT) applications. They specialized in designing, developing, and selling application-specific semiconductors and embedded systems.
Dialog Semiconductor is known for providing highly integrated standard and custom mixed-signal integrated circuits (ICs), primarily for consumer electronics, automotive, and industrial markets. The company focuses on creating energy-efficient solutions for power management, audio, charging, Bluetooth low energy, and other applications.
Renesas Electronics Corporation is a major player in the global semiconductor industry. It provides a wide range of microcontrollers, analog, power, and SoC products. Renesas focuses on offering comprehensive solutions tailored to meet the diverse needs of industries such as automotive, industrial, infrastructure, and IoT.

The AT45DB021E-SHN-B is a serial flash memory device used in various applications requiring reliable data storage. Key areas include embedded systems, where it stores firmware and configuration data, and consumer electronics for data logging and firmware updates. It's also used in industrial automation for storing system parameters and logs. In telecommunications, it aids in preserving settings and operational data. Additionally, it supports Internet of Things (IoT) devices by storing sensor data and operational histories. Its low power consumption makes it suitable for battery-operated devices, and its reliability is ideal for applications demanding frequent read/write operations.

The AT45DB021E-SHN-B is a serial flash memory device with a package type of SOIC (Small Outline Integrated Circuit), specifically an 8-SOIC package.