AT45DB041D-SSU

The AT45DB041D-SSU is a serial interface Flash memory chip produced by Microchip Technology, formerly by Atmel. It features a storage capacity of 4 megabits (512 kilobytes) and is part of the DataFlash family, characterized by its capability to perform rapid page and block erase functions, making it suitable for data storage applications that require frequent updates.
The chip supports a serial peripheral interface (SPI) for communication, which simplifies its integration into microcontroller-based systems by using fewer pins compared to parallel memory devices. It operates with a supply voltage range of 2.7V to 3.6V, which is ideal for battery-powered applications.
Key features include advanced sector protection to prevent accidental data modification, and a dual SRAM data buffer for efficient input/output operations. Its endurance of 100,000 write/erase cycles and a data retention period of up to 20 years ensures reliability.
The SSU suffix indicates a SOIC-8 package, which is compact and suitable for space-constrained designs. This memory device is commonly used in applications such as firmware storage, data logging, and portable electronics.

The AT45DB041D-SSU chip is a 4Mb DataFlash memory from Adesto Technologies (formerly Atmel). Equivalent products include:
1. Winbond's W25Q40 series
2. Micron's M25P40
3. Macronix's MX25L4006E
4. ISSI's IS25LQ040B
These chips offer similar capacities and can typically serve as substitutes, but it's important to verify pin configuration and electrical specifications to ensure compatibility for your specific application.

The AT45DB041D-SSU is a 4-megabit DataFlash memory device from Microchip Technology. It features a serial interface for high-speed data transfer and is organized as 2,048 pages of 264 bytes each, providing a total of 1,081,344 bytes of storage. The device supports both standard SPI and RapidS serial interface protocols, allowing flexible communication options.
Key features include:
1. Dual and Quad Input/Output (I/O) support: Enhances data transfer rates significantly.
2. Page and Block Erase: Provides efficient memory management by erasing whole pages or blocks.
3. User-Configurable Page Size: Offers flexibility between 256 or 264 bytes per page.
4. Data Protection: Includes hardware and software data protection schemes.
5. Low Power Consumption: Operates with a low standby current and deep power-down mode to conserve energy.
6. Endurance: Guaranteed endurance of 100,000 program/erase cycles per page.
7. Temperature Range: Operates in a broad temperature range, making it suitable for various applications.
8. Package: Available in an 8-lead SOIC package.
These features make it suitable for applications requiring reliable, high-speed data storage.

The AT45DB041D-SSU is a 4-megabit DataFlash memory device by Adesto Technologies (now part of Dialog Semiconductor). It is organized as 512 pages of 264 bytes each. The device is typically packaged in an 8-pin SOIC (Small Outline Integrated Circuit).
### Pin Count and Functions:
1. CS (Chip Select): Activates the device when low.
2. SCK (Serial Clock): Provides the clock pulse for data synchronization.
3. SI (Serial Input): Input for serial data, commands, and addresses.
4. SO (Serial Output): Outputs serial data from the device.
5. WP (Write Protect): Disables write operations to the status register when low.
6. RESET: Resets the device when low, allowing recovery from an error state.
7. VCC: Power supply pin, typically 2.7V to 3.6V.
8. GND: Ground reference for power and signals.
These pins facilitate communication with a microcontroller via an SPI (Serial Peripheral Interface) protocol, enabling functionalities like data storage, retrieval, and erasure. This device supports features like page-level programming, block erasing, and sector protection, making it suitable for applications requiring non-volatile memory.

The AT45DB041D-SSU is manufactured by Adesto Technologies Corporation, which was acquired by Dialog Semiconductor in 2020. Adesto Technologies specializes in developing innovative, application-specific semiconductors and systems for the Internet of Things (IoT) era. They focus primarily on non-volatile memory products, including DataFlash, Fusion Flash, and standard serial flash devices, such as the AT45DB041D-SSU.
Dialog Semiconductor, known for its expertise in power management, audio, charging, and Bluetooth low energy (BLE) technology, acquired Adesto to expand its portfolio and strengthen its position in the IoT market. Through Adesto's offerings, Dialog aims to address various industrial applications, such as smart building automation, industrial IoT, and other emerging sectors that require advanced memory solutions. In 2021, Dialog Semiconductor itself was acquired by Renesas Electronics Corporation, a major player in the semiconductor industry, further integrating Adesto's technologies into a broader range of electronic solutions.

The AT45DB041D-SSU is a DataFlash memory chip used in various applications requiring reliable, non-volatile storage. Common application areas include embedded systems, where it stores firmware, configuration data, or user data. It is also used in consumer electronics for data logging, in automotive systems for firmware updates and data storage, and in industrial equipment for storing settings and operational data. Additionally, it finds applications in networking equipment, medical devices, and any systems requiring a small form factor and low power consumption for data retention. Its ability to endure high write/erase cycles and provide fast data access makes it suitable for these applications.

The AT45DB041D-SSU is a 4-megabit DataFlash memory chip produced by Adesto Technologies (formerly Atmel). It comes in an 8-lead SOIC (Small Outline Integrated Circuit) package type.