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25AA256T-I/SN

Name: 25AA256T-I/SN
Rating: 4.7 (12 reviews)

IC EEPROM 256KBIT SPI 8SOIC

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製造商。部分 #25AA256T-I/SN
包 8-SOIC
資料表 25AA256T-I/SN DataSheet
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規格

Package	Tape & Reel (TR),Cut Tape (CT)
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)

概述

Description

The 25AA256T-I/SN is a serial EEPROM (Electrically Erasable Programmable Read-Only Memory) chip produced by Microchip Technology. It features a storage capacity of 256 Kbits (32 Kbytes) and operates on a voltage range of 1.8V to 5.5V, making it versatile for various applications. The device communicates through a 2-wire I2C interface, allowing easy integration with microcontrollers and other digital systems.
Key features include:
- Fast write speeds (up to 1 Mbit/s)
- Page write capability (up to 16 bytes)
- Built-in write protection for data integrity
- An extended temperature range suitable for industrial applications
The 25AA256T-I/SN is widely used in applications such as consumer electronics, automotive systems, and industrial control where non-volatile storage is required. Its small footprint and low power consumption make it an ideal choice for space-constrained and battery-operated devices. Overall, it is an efficient solution for storing configuration data, calibration settings, and other critical information.

Features

The 25AA256T-I/SN is a serial EEPROM (Electrically Erasable Programmable Read-Only Memory) device with the following key features:
1. Memory Size: 256 Kbit (32 Kbytes) of non-volatile memory.
2. Interface: SPI (Serial Peripheral Interface) for fast data transfer.
3. Voltage Range: Operates between 1.8V and 5.5V, making it suitable for various applications.
4. Access Speed: High-speed operation with clock rates up to 20 MHz.
5. Endurance: Supports over 1 million write/erase cycles, ensuring reliability over time.
6. Data Retention: Typically retains data for over 100 years at room temperature.
7. Operating Temperature: Available in various temperature ranges, suitable for different environmental conditions.
8. Package Options: Offered in multiple packaging options, including SOIC and TDFN, for flexible design integration.
This device is widely used in applications requiring data storage, such as automotive, industrial, and consumer electronics.

Package

The 25AA256T-I/SN is packaged in an 8-pin SOIC (Small Outline Integrated Circuit) format, which is a surface-mount package suitable for various electronic applications.

Pinout

The 25AA256T-I/SN is a serial EEPROM (Electrically Erasable Programmable Read-Only Memory) with a pin count of 8. Its primary functions include data storage and retrieval via a Serial Peripheral Interface (SPI).
The pinout is as follows:
1. CS (Chip Select) - Activates the device.
2. SI (Serial Input) - Data input pin for writing data.
3. SO (Serial Output) - Data output pin for reading data.
4. SCK (Serial Clock) - Clock signal for synchronizing data transfer.
5. WP (Write Protect) - Prevents write operations when set high.
6. VSS (Ground) - Connects to ground.
7. VCC (Power Supply) - Supplies power to the device.
8. NC (No Connection) - Not used.
The 25AA256T-I/SN features a 256 Kbit memory capacity, with a standard operating voltage of 1.8V to 5.5V, and supports high-speed data transfer, making it suitable for various applications in embedded systems.

Manufacturer

The manufacturer of the 25AA256T-I/SN is Microchip Technology Inc. Microchip is a leading provider of microcontroller, mixed-signal, analog, and Flash-IP solutions. Founded in 1989, the company specializes in developing integrated circuits and related technologies for various applications, including automotive, industrial, consumer, and communications markets. Microchip is known for its extensive portfolio of 8-bit, 16-bit, and 32-bit microcontrollers, as well as memory products like the 25AA256T-I/SN, which is a 256 Kbit SPI EEPROM. The company focuses on providing high-quality, reliable, and cost-effective solutions while also offering extensive support and development tools to help engineers and designers bring their products to market efficiently.

Application

The 25AA256T-I/SN is a 256 Kbit serial EEPROM used in various applications such as consumer electronics, automotive systems, industrial automation, and telecommunications. It is ideal for storing configuration settings, calibration data, and small amounts of code due to its low power consumption and I2C interface. Typical uses include data logging, firmware updates, and device memory in smart cards, sensors, and portable devices.

Equivalent

The 25AA256T-I/SN chip is a 256 Kbit serial EEPROM. Equivalent products include the 25AA256, 25LC256, and 25W256. Ensure compatibility in terms of voltage, pin configuration, and communication protocol (SPI). Always verify the specific requirements of your application before substitution.