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 | 64Kb (8K x 8) |
| Memory Interface | SPI |
| Clock Frequency | 10 MHz |
| Write Cycle Time - Word Page | 5ms |
| Voltage - Supply | 2.5V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
概述
Description
The 25LC640AT-I/SN is a serial EEPROM (Electrically Erasable Programmable Read-Only Memory) device produced by Microchip Technology. It offers a storage capacity of 64 Kbits (8192 bytes) and utilizes an SPI (Serial Peripheral Interface) protocol for communication, making it suitable for applications requiring simple, efficient data storage and retrieval. The EEPROM operates at voltages ranging from 1.8V to 5.5V, providing flexibility for integration into a variety of systems.
Key features include a high endurance of up to 1,000,000 erase/write cycles and data retention of over 200 years, ensuring long-term reliability. The 25LC640AT-I/SN also includes a write-protect feature to prevent accidental data modification and supports sequential reads and writes, enabling efficient data handling. It is housed in an 8-pin SOIC package, making it compact for space-constrained applications. This EEPROM is commonly used in consumer electronics, automotive systems, and industrial applications where non-volatile memory is needed for storing configuration settings, calibration data, or other critical information.
Key features include a high endurance of up to 1,000,000 erase/write cycles and data retention of over 200 years, ensuring long-term reliability. The 25LC640AT-I/SN also includes a write-protect feature to prevent accidental data modification and supports sequential reads and writes, enabling efficient data handling. It is housed in an 8-pin SOIC package, making it compact for space-constrained applications. This EEPROM is commonly used in consumer electronics, automotive systems, and industrial applications where non-volatile memory is needed for storing configuration settings, calibration data, or other critical information.
Equivalent
The 25LC640AT-I/SN is a Microchip 64Kb (8KB) SPI EEPROM. Equivalent products from other manufacturers may include:
1. Atmel/Microchip AT25M02 - Offers similar SPI EEPROM capabilities.
2. STMicroelectronics M95M02 - Another SPI EEPROM with comparable specifications.
3. ON Semiconductor CAT25M01 - SPI interface EEPROM with similar memory capacity.
Ensure compatibility by checking voltage, speed, and package type.
1. Atmel/Microchip AT25M02 - Offers similar SPI EEPROM capabilities.
2. STMicroelectronics M95M02 - Another SPI EEPROM with comparable specifications.
3. ON Semiconductor CAT25M01 - SPI interface EEPROM with similar memory capacity.
Ensure compatibility by checking voltage, speed, and package type.
Features
The 25LC640AT-I/SN is a 64Kb (8KB) serial EEPROM memory device from Microchip Technology. It features an SPI (Serial Peripheral Interface) protocol for communication, which allows for high-speed data transfers. The EEPROM operates with a wide voltage range from 1.8V to 5.5V, making it versatile for various applications. It has a low-power design, which is ideal for battery-operated devices, and offers over 1,000,000 erase/write cycles with data retention of more than 200 years. The device includes a status register for monitoring the write-in-progress bit and enables/disables write protection. Its small 8-pin SOIC package makes it suitable for space-constrained designs. Additionally, it features byte and page write capabilities, with a page size of 32 bytes, and supports sequential read operations. Its operating temperature range is from -40°C to +85°C, making it suitable for industrial applications. The 25LC640AT-I/SN ensures reliable and durable performance for non-volatile memory storage needs.
Pinout
The 25LC640AT-I/SN is a 64 Kbit SPI Serial EEPROM from Microchip Technology. It features an 8-pin configuration. Here is a concise overview of its pin functions:
1. CS (Chip Select): Activates the device when pulled low, allowing communication.
2. SO (Serial Data Out): Outputs data from the EEPROM to the microcontroller.
3. WP (Write Protect): Protects certain parts of the memory from being overwritten.
4. VSS: Ground reference for the device.
5. SI (Serial Data In): Inputs data from the microcontroller to the EEPROM.
6. SCK (Serial Clock): Controls the data transfer rate.
7. HOLD: Pauses the communication without resetting the SPI communication.
8. VCC: Power supply for the device.
This EEPROM communicates via the SPI protocol, allowing for fast data transfer rates, and is used in applications requiring persistent storage.
1. CS (Chip Select): Activates the device when pulled low, allowing communication.
2. SO (Serial Data Out): Outputs data from the EEPROM to the microcontroller.
3. WP (Write Protect): Protects certain parts of the memory from being overwritten.
4. VSS: Ground reference for the device.
5. SI (Serial Data In): Inputs data from the microcontroller to the EEPROM.
6. SCK (Serial Clock): Controls the data transfer rate.
7. HOLD: Pauses the communication without resetting the SPI communication.
8. VCC: Power supply for the device.
This EEPROM communicates via the SPI protocol, allowing for fast data transfer rates, and is used in applications requiring persistent storage.
Manufacturer
The 25LC640AT-I/SN is manufactured by Microchip Technology Inc. Microchip Technology is a leading provider of smart, connected, and secure embedded control solutions. The company offers a wide range of products, including microcontrollers, memory products, analog devices, and interface products, which are used in a variety of applications across different industries such as automotive, aerospace, consumer electronics, and industrial automation. Microchip is known for its focus on innovation, quality, and customer support, providing comprehensive solutions that help designers and engineers create optimized, efficient, and cost-effective electronic systems.
Application
The 25LC640AT-I/SN is a 64Kb serial EEPROM used in various applications requiring non-volatile memory. Key areas include:
1. Consumer Electronics: Used in devices like TVs and remote controls for storing configuration settings.
2. Industrial Automation: Stores calibration data and operation logs.
3. Medical Devices: Keeps patient data and device settings.
4. Automotive: Used for storing error logs and configuration settings.
5. Internet of Things (IoT): Retains firmware and sensor data.
6. Communication Systems: Stores network configurations and routing tables.
7. Home Automation: Saves device settings and user preferences.
These applications benefit from its compact size, low power consumption, and reliability.
1. Consumer Electronics: Used in devices like TVs and remote controls for storing configuration settings.
2. Industrial Automation: Stores calibration data and operation logs.
3. Medical Devices: Keeps patient data and device settings.
4. Automotive: Used for storing error logs and configuration settings.
5. Internet of Things (IoT): Retains firmware and sensor data.
6. Communication Systems: Stores network configurations and routing tables.
7. Home Automation: Saves device settings and user preferences.
These applications benefit from its compact size, low power consumption, and reliability.
Package
The 25LC640AT-I/SN is a 64 Kbit serial EEPROM from Microchip Technology. It comes in an 8-pin SOIC (Small Outline Integrated Circuit) package type.
