25AA256-I/SN

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25AA256-I/SN

IC EEPROM 256KBIT SPI 8SOIC

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Спецификации

Package Tube
ProductStatus Active
MemoryType Non-Volatile
MemoryFormat EEPROM
Technology EEPROM
MemorySize 256Kb (32K x 8)
MemoryInterface SPI
ClockFrequency 10 MHz
WriteCycleTime-WordPage 5ms
Voltage-Supply 1.8V ~ 5.5V
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
Package/Case 8-SOIC (0.154, 3.90mm Width)

Обзор

Description

The 25AA256-I/SN is a serial EEPROM (Electrically Erasable Programmable Read-Only Memory) manufactured by Microchip Technology. It features a memory capacity of 256 kilobits (32 kilobytes) and operates over a voltage range of 1.8V to 5.5V. The device uses the SPI (Serial Peripheral Interface) protocol for communication, allowing for high-speed data transfer, with speeds up to 10 MHz.
Key features include a page write capability, which allows writing data in 32-byte increments, and a wide operating temperature range, making it suitable for various applications. The 25AA256-I/SN is commonly used for data storage in consumer electronics, automotive systems, and industrial applications, where non-volatile memory is essential for retaining information when power is off.
Its small footprint and low power consumption make it ideal for space-constrained designs. Additionally, it supports multiple devices on the same SPI bus, enabling flexible system configurations.

Features

The 25AA256-I/SN is a 256 Kbit (32 Kbyte) serial EEPROM (Electrically Erasable Programmable Read-Only Memory) from Microchip Technology. Key features include:
1. Interface: It uses a 2-wire I2C interface, allowing for easy integration with microcontrollers.
2. Memory Organization: Arranged in 32 pages of 16 bytes each, facilitating efficient data storage and retrieval.
3. Speed: Supports standard mode (up to 100 kHz) and fast mode (up to 400 kHz) for quick data access.
4. Voltage Range: Operates within a voltage range of 1.8V to 5.5V, making it suitable for various applications.
5. Endurance: Supports up to 1 million write cycles per byte and has a data retention of over 100 years.
6. Programming: Features sequential and random read/write capabilities, enhancing flexibility in data handling.
7. Temperature Range: Rated for operation in industrial temperature ranges from -40°C to +125°C.
These features make the 25AA256-I/SN ideal for applications requiring reliable non-volatile memory, such as consumer electronics, automotive, and industrial devices.

Package

The 25AA256-I/SN is a serial EEPROM (Electrically Erasable Programmable Read-Only Memory) packaged in an 8-pin SOIC (Small Outline Integrated Circuit) format. It features a surface-mount design suitable for various electronic applications.

Pinout

The 25AA256-I/SN is a serial EEPROM (Electrically Erasable Programmable Read-Only Memory) chip with a total of 8 pins. Here’s the pin count and their functions:
1. VSS (Pin 1): Ground connection.
2. VCC (Pin 2): Power supply (typically 1.8V to 5.5V).
3. SCK (Pin 3): Serial clock input for synchronizing data transmission.
4. SI (Pin 4): Serial input for data to be written to the EEPROM.
5. SO (Pin 5): Serial output for data being read from the EEPROM.
6. CS (Pin 6): Chip select input to enable the device.
7. WP (Pin 7): Write protect pin to prevent writing to the memory.
8. NC (Pin 8): No connection.
The 25AA256-I/SN has a memory capacity of 256 Kbits and communicates using the SPI (Serial Peripheral Interface) protocol.

Manufacturer

The manufacturer of the 25AA256-I/SN is Microchip Technology Inc. Microchip is a leading provider of microcontrollers, memory, and other semiconductor solutions. Founded in 1989, the company specializes in embedded control applications, offering a wide range of products that include analog, interface, and wireless solutions, along with development tools and software. Microchip serves various industries, including automotive, industrial, consumer, and communications, focusing on providing high-performance and low-power solutions for a diverse set of applications. The 25AA256-I/SN is a serial EEPROM (Electrically Erasable Programmable Read-Only Memory) device, used for data storage in various electronic systems.

Application

The 25AA256-I/SN is a serial EEPROM used in various applications, including consumer electronics, automotive systems, industrial control, and medical devices. It is commonly utilized for data storage, configuration settings, firmware updates, and logging information in low-power devices. Its I2C interface allows for easy integration with microcontrollers and other digital systems.

Equivalent

The 25AA256-I/SN is a 256 Kbit serial EEPROM from Microchip. Equivalent products include the 25LC256-I/SN (similar functionality but with a different technology), and the AT25DF256 (from Adesto Technologies). These chips offer comparable storage capacity and architecture, but always check specific electrical characteristics and pin configurations for compatibility.

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