24LC256-I/ST

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24LC256-I/ST

IC EEPROM 256KBIT I2C 8TSSOP

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Spezifikationen

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 2.5V ~ 5.5V
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
Package/Case 8-TSSOP (0.173, 4.40mm Width)

Übersicht

Description

The 24LC256-I/ST is a EEPROM (Electrically Erasable Programmable Read-Only Memory) chip from Microchip Technology. It features 256 Kbit (32 Kbytes) of memory, organized as 32 pages of 64 bytes each, making it suitable for various applications in embedded systems where non-volatile data storage is needed.
This EEPROM communicates via I2C (Inter-Integrated Circuit) protocol, allowing multiple devices to be connected on the same bus, with a maximum clock frequency of 1 MHz. The 24LC256-I/ST operates within a voltage range of 1.8V to 5.5V, making it versatile for different power supply environments.
Key features include a built-in page write capability, which allows for efficient writing of up to 16 bytes at once, and a write cycle time of approximately 5 ms. This chip is commonly used in applications like data logging, configuration settings, and firmware storage in consumer electronics, industrial controls, and automotive systems due to its durability and reliability.

Features

The 24LC256-I/ST is a 256Kb (32K x 8) I2C EEPROM designed for low power applications. Key features include:
- I2C Interface: Supports fast mode up to 400 kHz, allowing for easy integration with microcontrollers.
- 8-Pin Package: Available in various packages, including SOIC and TSSOP, facilitating compact designs.
- Wide Voltage Range: Operates from 1.7V to 5.5V, making it suitable for battery-powered devices.
- Write Protection: Features a hardware write protection pin to prevent accidental writes.
- Byte and Page Write: Allows for both byte-wise and page-wise writing (up to 16 bytes at once).
- Data Retention: Ensures data retention of up to 100 years at room temperature.
- Endurance: Supports up to 1 million write cycles per memory cell.
- Low Power Consumption: Consumes minimal power during operation, with a typical standby current of 1 µA.
These attributes make the 24LC256-I/ST ideal for applications in consumer electronics, automotive, and industrial sectors requiring non-volatile memory.

Package

The 24LC256-I/ST is a 256 Kbit EEPROM (Electrically Erasable Programmable Read-Only Memory) packaged in an 8-pin SOIC (Small Outline Integrated Circuit) form factor. The “I” indicates industrial temperature range, while “ST” denotes the standard package type.

Pinout

The 24LC256-I/ST is an I2C compatible EEPROM (Electrically Erasable Programmable Read-Only Memory) device with a total of 8 pins. The pin configuration and their functions are as follows:
1. VCC - Power supply (typically 2.5V to 5.5V).
2. GND - Ground reference.
3. SDA - Serial Data Line for data input/output.
4. SCL - Serial Clock Line for timing control of the I2C interface.
5. WP - Write Protect; when connected to VCC, it disables write operations.
6. A0 - Device address selection pin (can be tied to GND or VCC to set the I2C address).
7. A1 - Another device address selection pin.
8. A2 - A third device address selection pin.
The 24LC256-I/ST has a memory capacity of 256 Kbit (32 Kbytes) and supports multiple devices on the same I2C bus by using the A0, A1, and A2 pins for address selection.

Manufacturer

The manufacturer of the 24LC256-I/ST is Microchip Technology Inc. Microchip is a leading semiconductor company that specializes in embedded control solutions. Founded in 1989 and headquartered in Chandler, Arizona, it designs and manufactures microcontrollers, memory chips, and various analog and interface products. Microchip serves a wide range of industries, including automotive, industrial, consumer, and communications, providing products that enable engineers to develop innovative applications. The company is known for its focus on quality and reliability, as well as its commitment to customer support and technical resources.

Application

The 24LC256-I/ST is a 256 Kbit (32 Kbyte) I2C EEPROM used in various applications such as data logging, configuration storage, and firmware updates in consumer electronics, automotive systems, medical devices, and industrial control systems. It is ideal for non-volatile memory needs, where data retention without power is crucial. Additionally, it is utilized in smart meters, home automation, and IoT devices for storing user settings and operational parameters.

Equivalent

The 24LC256-I/ST chip is a 256 Kbit EEPROM. Equivalent products include:
1. AT24C256 (Microchip)
2. M24C256 (STMicroelectronics)
3. CAT24C256 (ON Semiconductor)
4. S-24C256 (Seiko Instruments)
These chips share similar specifications, such as memory size, I2C interface, and voltage range. Always check datasheets for specific features and compatibility.

Versand

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