Microchip Technology AT25256B-SSHL-B

Microchip Technology AT25256B-SSHL-B Environmental and export classification status description

The Microchip AT25256B-SSHL-B is a 256 Kbit (32 K x 8) serial EEPROM memory device. It operates via a two-wire Serial Peripheral Interface (SPI), which allows for easy interfacing with microcontrollers and other digital devices. The device is organized into pages, allowing multiple bytes to be written simultaneously, which can improve the efficiency of data storage. Functions 1. Data Storage: The primary function of the AT25256B-SSHL-B is to store data that can be retained without power. It is suitable for applications requiring non-volatile data storage. 2. SPI Interface: It supports a serial SPI interface, allowing communication with microcontrollers. 3. Page Write Capability: It allows writing data page-wise, reducing the time needed for multiple write operations. 4. Small Package Size: The device is available in a small, space-saving package, making it suitable for compact designs. Applications 1. Embedded Systems: Suitable for microcontrollers needing non-volatile memory for configuration data. 2. Consumer Electronics: Used in devices like remote controls, gaming consoles, and appliances. 3. Industrial Automation: Storing settings and calibration data in industrial equipment. 4. Automotive Applications: Used in vehicles for storing various settings and features. 5. Medical Devices: For storing patient records and device settings in medical equipment. Alternative Parts 1. AT25040A-SSHL-T: A smaller 4Kbit EEPROM with a similar SPI interface. 2. AT24C256C-SSHL-T: An I2C EEPROM with a similar memory size. 3. Microchip SST25VF256: A serial flash memory with comparable density and SPI interface. 4. STMicroelectronics M24512: A 512 Kbit I2C EEPROM that can serve similar applications. Embedded Modules Microchip offers development boards and modules that may integrate the AT25256B-SSHL-B or equivalent EEPROMs: 1. MPLAB® X IDE: A software development environment that supports programming and debugging using the AT25256B-SSHL-B. 2. Microchip’s MCP2221: A USB to UART interface that can be used to communicate with EEPROMs. Related Q&A 1. Q: What is the capacity of the Microchip AT25256B-SSHL-B? - A: The AT25256B-SSHL-B has a storage capacity of 256 Kbits (32 K x 8 bits). 2. Q: What communication protocol does the AT25256B-SSHL-B use? - A: It uses the SPI (Serial Peripheral Interface) for communication with other devices. 3. Q: Can the AT25256B-SSHL-B be used in a battery-powered application? - A: Yes, because it provides non-volatile storage, making it suitable for battery-powered applications where data retention is needed without continuous power. 4. Q: What is the maximum clock speed supported by the AT25256B-SSHL-B? - A: The device supports clock speeds up to 20 MHz, allowing for fast communication. 5. Q: How do you erase data in the AT25256B-SSHL-B? - A: The AT25256B-SSHL-B does not require an erase operation before writing; it allows writing directly to the specified memory locations.