規格
| 屬性 | 價值 |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Active |
| Memory Type | Non-Volatile |
| Memory Format | EEPROM |
| Technology | EEPROM |
| Memory Size | 256Kb (32K x 8) |
| Memory Interface | I²C |
| Clock Frequency | 400 kHz |
| Write Cycle Time - Word Page | 5ms |
| Access Time | 900 ns |
| Voltage - Supply | 2.5V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
概述
Description
The 24LC256T-I/SN is a 256-Kilobit (32 Kbyte) Electrically Erasable Programmable Read-Only Memory (EEPROM) organized into 32,768 words of 8 bits each. It is manufactured by Microchip Technology and is part of their I2C-compatible EEPROM series. The device is designed for use in applications requiring non-volatile data storage with the ability to electrically erase and reprogram individual bytes, making it ideal for storing configuration settings or calibration data.
Key features include a wide operating voltage range from 1.7V to 5.5V, ensuring compatibility with a variety of microcontrollers and systems. It operates with a low standby current and features high endurance with a write cycle of up to 1 million operations. The 24LC256T-I/SN supports a two-wire I2C serial interface and can operate at clock frequencies up to 400kHz, allowing for fast data transfer. The device also includes hardware write protection to safeguard data integrity. Its small 8-lead SOIC package makes it suitable for space-constrained applications.
Key features include a wide operating voltage range from 1.7V to 5.5V, ensuring compatibility with a variety of microcontrollers and systems. It operates with a low standby current and features high endurance with a write cycle of up to 1 million operations. The 24LC256T-I/SN supports a two-wire I2C serial interface and can operate at clock frequencies up to 400kHz, allowing for fast data transfer. The device also includes hardware write protection to safeguard data integrity. Its small 8-lead SOIC package makes it suitable for space-constrained applications.
Equivalent
The 24LC256T-I/SN is a 256Kb I2C EEPROM from Microchip. Equivalent products include:
1. AT24C256C from Atmel (now part of Microchip)
2. M24256 from STMicroelectronics
3. CAT24C256 from ON Semiconductor
4. FM24C256 from Rohm Semiconductor
These equivalents offer similar memory capacities and support for I2C communication, but always check datasheets for specific electrical and timing characteristics to ensure full compatibility.
1. AT24C256C from Atmel (now part of Microchip)
2. M24256 from STMicroelectronics
3. CAT24C256 from ON Semiconductor
4. FM24C256 from Rohm Semiconductor
These equivalents offer similar memory capacities and support for I2C communication, but always check datasheets for specific electrical and timing characteristics to ensure full compatibility.
Features
The 24LC256T-I/SN is a 256-Kilobit (32K x 8) serial EEPROM memory chip manufactured by Microchip Technology. It features an I2C-compatible interface for communication and operates at a voltage range of 2.5V to 5.5V. The device offers a low-power CMOS technology with a standby current of just 1 µA, making it energy-efficient.
Key features include:
- 1 MHz clock frequency for fast read/write operations.
- Byte-level write capability and page write capability of up to 64 bytes per page.
- More than 1 million erase/write cycles and 200-year data retention.
- Schmitt trigger inputs for noise suppression and input signal conditioning.
- Hardware write protection via a write-protect pin to safeguard data integrity.
- 8-lead SOIC, TSSOP, and PDIP package options for versatile applications.
This EEPROM is ideal for applications requiring reliable, non-volatile storage with minimal power consumption, such as consumer electronics, industrial controls, and medical devices.
Key features include:
- 1 MHz clock frequency for fast read/write operations.
- Byte-level write capability and page write capability of up to 64 bytes per page.
- More than 1 million erase/write cycles and 200-year data retention.
- Schmitt trigger inputs for noise suppression and input signal conditioning.
- Hardware write protection via a write-protect pin to safeguard data integrity.
- 8-lead SOIC, TSSOP, and PDIP package options for versatile applications.
This EEPROM is ideal for applications requiring reliable, non-volatile storage with minimal power consumption, such as consumer electronics, industrial controls, and medical devices.
Pinout
The 24LC256T-I/SN is a 256 Kbit (32 Kbyte) I2C serial EEPROM. It has an 8-pin configuration. Here are the functions of each pin:
1. A0, A1, A2 (Pins 1, 2, 3): These are the address input pins used for device addressing on the I2C bus. They allow up to 8 devices to be connected on the same bus.
2. VSS (Pin 4): This is the ground pin.
3. SDA (Pin 5): This is the serial data line. It is used for both data input and output.
4. SCL (Pin 6): This is the serial clock line used for clock synchronization.
5. WP (Pin 7): This is the write-protect pin. When it is connected to VCC, the write operations are disabled, which protects against inadvertent writes.
6. VCC (Pin 8): This is the power supply pin.
The device operates on a supply voltage range of 2.5V to 5.5V and supports a standard I2C two-wire interface with clock speeds up to 400 kHz.
1. A0, A1, A2 (Pins 1, 2, 3): These are the address input pins used for device addressing on the I2C bus. They allow up to 8 devices to be connected on the same bus.
2. VSS (Pin 4): This is the ground pin.
3. SDA (Pin 5): This is the serial data line. It is used for both data input and output.
4. SCL (Pin 6): This is the serial clock line used for clock synchronization.
5. WP (Pin 7): This is the write-protect pin. When it is connected to VCC, the write operations are disabled, which protects against inadvertent writes.
6. VCC (Pin 8): This is the power supply pin.
The device operates on a supply voltage range of 2.5V to 5.5V and supports a standard I2C two-wire interface with clock speeds up to 400 kHz.
Manufacturer
The 24LC256T-I/SN is manufactured by Microchip Technology Inc. Microchip is a leading provider of microcontroller, mixed-signal, analog, and Flash-IP solutions. Founded in 1989, the company is headquartered in Chandler, Arizona, and is known for designing, manufacturing, and selling a wide range of semiconductor products. Microchip's offerings are used in various applications including automotive, consumer electronics, industrial, and telecommunication markets. The company is recognized for its commitment to high-quality products and customer support, making it a significant player in the global semiconductor industry.
Application
The 24LC256T-I/SN is a 256-Kbit I2C CMOS Serial EEPROM used in various applications due to its reliable non-volatile storage. Common application areas include:
1. Consumer Electronics: Used for storing user settings and configurations.
2. Industrial Systems: Suitable for data logging, calibration data, and configuration storage.
3. Automotive: Can store diagnostic data, customization settings, and event logs.
4. Medical Devices: Stores critical calibration data and patient records.
5. Communication Equipment: Holds configuration settings and firmware updates.
Its low power consumption, high endurance, and I2C compatibility make it versatile for any application requiring reliable, small-scale data storage.
1. Consumer Electronics: Used for storing user settings and configurations.
2. Industrial Systems: Suitable for data logging, calibration data, and configuration storage.
3. Automotive: Can store diagnostic data, customization settings, and event logs.
4. Medical Devices: Stores critical calibration data and patient records.
5. Communication Equipment: Holds configuration settings and firmware updates.
Its low power consumption, high endurance, and I2C compatibility make it versatile for any application requiring reliable, small-scale data storage.
Package
The 24LC256T-I/SN is a 256 Kbit I2C EEPROM from Microchip Technology, housed in an 8-pin SOIC (Small Outline Integrated Circuit) package. The "T" indicates a tape and reel packaging, while "I" denotes industrial temperature range.
