Microchip Technology

25LC640A-I/ST

25LC640A-I/ST Description

The 25LC640A-I/ST is a 64Kbit (8K x 8) SPI Serial EEPROM from Microchip Technology, designed for high-performance, low-power data storage applications. Operating within a 2.5V to 5.5V supply range, this EEPROM is ideal for embedded systems requiring reliable non-volatile memory. It features a 10 MHz clock frequency and supports SPI (Serial Peripheral Interface), ensuring fast and efficient data transfer. With a 5ms write cycle time for word or page operations, it balances speed and endurance, making it suitable for frequent read/write cycles. The device comes in an 8-pin TSSOP package, optimized for surface-mount (SMT) applications, and is RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity, ensuring broad compatibility in manufacturing environments.

25LC640A-I/ST Features

• Memory Size & Organization: 64Kbit (8K x 8) for flexible data storage.
• High-Speed SPI Interface: Supports 10 MHz clock frequency for rapid communication.
• Wide Voltage Range: Operates from 2.5V to 5.5V, suitable for mixed-voltage systems.
• Fast Write Cycle: 5ms write time for word/page operations, enhancing efficiency.
• Robust Endurance: Designed for high cycle count applications with reliable EEPROM technology.
• Compact Form Factor: 8-TSSOP package saves board space in dense PCB layouts.
• Environmental Compliance: RoHS3 compliant and REACH unaffected, meeting global standards.

25LC640A-I/ST Applications

• Embedded Systems: Stores configuration data, calibration settings, or firmware updates in microcontrollers.
• Industrial Automation: Retains critical parameters in PLCs, sensors, and control modules.
• Consumer Electronics: Used in smart devices, wearables, and IoT products for data logging.
• Automotive: Non-volatile memory for infotainment systems, telematics, and ECU configurations.
• Medical Devices: Reliable storage for patient data and device settings in portable healthcare equipment.

Conclusion of 25LC640A-I/ST

The 25LC640A-I/ST stands out as a high-performance, versatile EEPROM for modern electronics, combining speed, reliability, and low-power operation. Its SPI interface, wide voltage range, and compact packaging make it a preferred choice for engineers designing space-constrained, power-sensitive applications. Whether in industrial, automotive, or consumer systems, this EEPROM delivers consistent performance and endurance, backed by Microchip’s reputable quality standards.