25AA256-I/P

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25AA256-I/P

IC EEPROM 256KBIT SPI 10MHZ 8DIP

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規格

Part Status Active
DigiKey Programmable Not Verified
Memory Type Non-Volatile
Memory Format EEPROM
Technology EEPROM
Memory Size 256Kbit
Memory Organization 32K x 8
Memory Interface SPI
Write Cycle Time - Word, Page 5ms
Voltage - Supply 1.8V ~ 5.5V
Operating Temperature -40°C ~ 85°C (TA)
Mounting Type Through Hole
Package / Case 8-DIP (0.300", 7.62mm)
Supplier Device Package 8-PDIP
Base Product Number 25AA256
Clock Frequency 10 MHz

概述

Description

The 25AA256-I/P is a serial EEPROM (Electrically Erasable Programmable Read-Only Memory) chip produced by Microchip Technology. It features a 256 Kbit (32 K x 8) memory size, allowing for the storage of data in a non-volatile format, meaning the information is retained even when power is removed.
Key features include:
- Interface: It uses a Serial Peripheral Interface (SPI) for communication, which allows for fast data transfer rates.
- Voltage Range: Operates typically between 1.8V and 5.5V, making it versatile for various applications.
- Memory Organization: The memory is organized into 32 pages of 64 bytes each.
- Data Retention: Offers a data retention period of up to 200 years, with a write endurance of approximately 1 million cycles per byte.
- Applications: Commonly used in applications requiring data logging, configuration storage, and other tasks where data persistence is essential.
Overall, the 25AA256-I/P is an efficient solution for applications needing reliable, compact, non-volatile memory.

Features

The 25AA256-I/P is a 256 Kbit (32 KByte) serial EEPROM (Electrically Erasable Programmable Read-Only Memory) from Microchip Technology. It features the following key attributes:
1. Interface: It utilizes a 2-wire I2C interface for communication, allowing easy integration with microcontrollers.
2. Voltage Range: Operates typically between 1.8V to 5.5V, making it suitable for battery-powered applications.
3. Speed: Supports a maximum clock frequency of up to 1 MHz.
4. Memory Organization: Organized as 32 pages of 256 bytes each, facilitating efficient data writing and reading.
5. Endurance and Retention: Offers 1,000,000 write cycles per memory cell and a data retention of over 200 years.
6. Write Protection: Features a hardware write protection mechanism to prevent accidental data modification.
7. Low Power Consumption: Designed for low power usage, aiding in extending battery life in portable devices.
These features make the 25AA256-I/P suitable for various applications, including data logging, configuration storage, and calibration data storage in embedded systems.

Package

The 25AA256-I/P is packaged in an 8-pin PDIP (Plastic Dual In-Line Package). This type of package features a dual-row configuration for easy mounting on PCBs.

Pinout

The 25AA256-I/P is a 256 Kbit (32 Kbyte) serial EEPROM (Electrically Erasable Programmable Read-Only Memory) that typically comes in an 8-pin package. The pin configuration and functions are as follows:
1. CS (Chip Select) - Activates the device when low.
2. SI (Serial Input) - Data input for writing to the memory.
3. SO (Serial Output) - Data output for reading from the memory.
4. SCK (Serial Clock) - Synchronizes the data transmission.
5. WP (Write Protect) - Protects memory from being written to when high.
6. VSS (Ground) - Connects to the ground reference.
7. VCC (Power Supply) - Connects to the power supply (typically 1.8V to 5.5V).
8. NC (No Connect) - Not internally connected; can be left floating.
The device operates using a SPI (Serial Peripheral Interface) protocol for communication.

Manufacturer

The manufacturer of the 25AA256-I/P is Microchip Technology Inc. Microchip is a leading American company specializing in semiconductor products, particularly microcontrollers, memory, and analog devices. Founded in 1989, Microchip provides a wide range of solutions for embedded control applications, serving various industries including automotive, industrial, and consumer electronics. The 25AA256-I/P is a serial EEPROM (Electrically Erasable Programmable Read-Only Memory) device used for data storage in electronic applications.

Application

The 25AA256-I/P is a 256 Kbit (32 K x 8) serial EEPROM used in various applications including consumer electronics, automotive systems, and industrial automation. Common uses include data storage for configuration settings, calibration data, firmware updates, and user preferences in devices such as smart appliances, medical equipment, and IoT devices. Its SPI interface allows for efficient communication in low-power applications.

Equivalent

The 25AA256-I/P is a 256 Kbit Serial EEPROM from Microchip. Equivalent products include the AT25020 from Microchip, M95128 from STMicroelectronics, and 93C56 from Microchip as well. Look for similar specifications such as voltage range, memory size, and SPI/I2C interface compatibility when considering alternatives.

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