24AA256-I/SN

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24AA256-I/SN

+Nomenclature

IC EEPROM 256KBIT I2C 8SOIC

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Spécifications

Attribut Valeur
Package Tube
ProductStatus Active
MemoryType Non-Volatile
MemoryFormat EEPROM
Technology EEPROM
MemorySize 256Kb (32K x 8)
MemoryInterface I²C
ClockFrequency 400 kHz
WriteCycleTime-WordPage 5ms
AccessTime 900 ns
Voltage-Supply 1.7V ~ 5.5V
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
Package/Case 8-SOIC (0.154, 3.90mm Width)

Présentation

Description

The 24AA256-I/SN is a 256-Kilobit serial Electrically Erasable Programmable Read-Only Memory (EEPROM) from Microchip Technology. It utilizes I2C (Inter-Integrated Circuit) bus protocol for communication, which makes it suitable for applications requiring data storage with low pin count interfaces. The EEPROM is organized as 32,768 x 8 bits and offers byte-level write capabilities, allowing for the modification of individual bytes of data without affecting others.
Key features include a supply voltage range of 1.7V to 5.5V, ensuring compatibility with a wide range of devices. It also supports a wide operating temperature range, making it suitable for various environmental conditions. The device incorporates a hardware write-protect pin to prevent accidental data modification, ensuring data integrity.
The 24AA256-I/SN is available in multiple package options, providing flexibility in design and integration. Its small form factor and low-power consumption make it ideal for use in consumer electronics, industrial automation, and other applications where reliable, non-volatile memory storage is required.

Equivalent

The 24AA256-I/SN is a 256Kb I2C EEPROM. Equivalent products include:
1. AT24C256 from Microchip Technology
2. CAT24C256 from ON Semiconductor
3. ST24C256 from STMicroelectronics
4. BR24C256 from ROHM Semiconductor
These alternatives offer similar functionality and interfacing, making them suitable replacements in most applications. Always verify pin configurations and electrical characteristics to ensure compatibility.

Features

The 24AA256-I/SN is a 256 Kbit I²C serial EEPROM from Microchip Technology. Key features include:
1. Memory Organization: It has a 32,768 x 8-bit structure, allowing for flexible data storage.
2. I²C Interface: It supports a two-wire I²C bus interface, compatible with Standard, Fast, and Fast Plus modes, with speeds up to 1 MHz.
3. Operating Voltage: The device operates over a wide voltage range of 1.7V to 5.5V, making it suitable for various applications.
4. Write Cycle Time: It offers a fast write cycle time of less than 5 ms.
5. Data Retention: The EEPROM guarantees data retention for over 200 years and endurance of 1 million erase/write cycles.
6. Low Power Consumption: It features low standby and active current, optimizing it for battery-operated devices.
7. Page Write Capability: It supports up to 64-byte page write, enhancing data write efficiency.
8. Temperature Range: It operates over the industrial temperature range of -40°C to +85°C.
9. Package Type: The device is available in an 8-pin SOIC package.
These features make the 24AA256-I/SN suitable for data logging, calibration data storage, and other applications requiring reliable non-volatile memory.

Pinout

The 24AA256-I/SN is a 256 Kbit (32 Kbyte) I2C Serial EEPROM manufactured by Microchip Technology. It comes in an 8-pin SOIC (Small Outline Integrated Circuit) package. Here's a brief overview of its pin count and functions:
1. VCC (Pin 8): Power supply voltage.
2. GND (Pin 4): Ground.
3. SDA (Pin 5): Serial Data – Bidirectional pin for data transfer.
4. SCL (Pin 6): Serial Clock – Clock input for I2C communication.
5. WP (Pin 7): Write Protect – When connected to VCC, write operations are disabled.
6. A0, A1, A2 (Pins 1, 2, 3): Device Address Inputs – Used to set the I2C address, allowing up to eight devices on the same bus.
The EEPROM operates in a wide voltage range from 1.7V to 5.5V and supports standard (100 kHz), fast (400 kHz), and fast plus (1 MHz) I2C protocols.

Manufacturer

The 24AA256-I/SN is manufactured by Microchip Technology Inc. Microchip is a leading semiconductor company that designs, manufactures, and sells microcontrollers, memory products, mixed-signal, analog, and Flash-IP solutions. The company serves a broad range of markets, including automotive, industrial, computing, consumer, aerospace, and defense. Microchip is known for providing reliable and comprehensive solutions to its customers, enabling them to create optimized products.

Application

The 24AA256-I/SN is a 256Kb I2C Serial EEPROM, commonly used for applications that require non-volatile storage. Key application areas include:
1. Consumer Electronics: For settings and configurations in devices like TVs and audio systems.
2. Industrial Equipment: Used for calibration data and settings in machinery.
3. Automotive Systems: Stores diagnostic data and configurations.
4. Medical Devices: Retains patient data and device settings.
5. Communication Devices: Used in network hardware for configuration data.
6. Computers and Peripherals: Stores BIOS and configuration settings.
7. IoT Devices: Manages data logging and firmware storage.
Its low power consumption and wide operating voltage range make it suitable for battery-operated devices.

Package

The 24AA256-I/SN is an EEPROM memory chip with a 256K capacity. It is housed in an 8-lead SOIC (Small Outline Integrated Circuit) package, suitable for surface mounting, and offers an industrial temperature range from -40°C to +85°C.

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