Microchip 64 kB EEPROM Serial SPI 8-Pin TSSOP 400 ns Access Time 2.5-5.5V Automotive Standard AEC-Q100 25LC640A-I/ST

Microchip 25LC640A-I/ST is a 64 kB Electrically Erasable Programmable Read-Only Memory (EEPROM) device featuring a Serial Peripheral Interface (SPI) and packaged in an 8-pin Thin Shrink Small Outline Package (TSSOP). This chip operates with a minimum supply voltage of 2.5 V and a maximum of 5.5 V, suitable for a wide range of voltage environments in industrial and automotive sectors.

The device offers a maximum clock frequency of 10 MHz with a quick maximum random access time of 400 ns, facilitating fast data transactions essential in embedded systems and memory storage solutions.

Measuring 6.4 mm in width, 3.1 mm in length, and 1.2 mm in height, the compact TSSOP package supports surface mount technology (SMT) for space-efficient PCB designs. The 8-pin configuration allows ease of integration with standard SPI communication protocols, supporting an 8-bit word length.

Designed and validated to meet the rigorous AEC-Q100 automotive standard, the 25LC640A-I/ST EEPROM ensures high reliability and performance in harsh conditions. It functions over a broad temperature range from -55°C to 125°C, making it ideal for automotive and industrial applications requiring durable memory solutions.

The memory organization consists of 64k bits arranged into 8192 words, with a long-lasting data retention capability rated at 200 years, minimizing the need for frequent data refreshing. The device’s low supply current of 5 mA contributes to energy efficiency in battery-powered and embedded systems.

64 kB memory size organized as 64k bits with 8192 words. Operates from 2.5 V to 5.5 V supply voltage for flexible integration. Supports maximum clock frequency of 10 MHz for fast data access. Compact 8-pin TSSOP surface-mount package measuring 6.4 mm by 3.1 mm by 1.2 mm.

Automotive standard AEC-Q100 qualified for robust industrial applications. Data retention of 200 years ensuring long-term reliability. Supply current is low at 5 mA, optimizing power consumption. Wide operating temperature range from -55°C to 125°C suitable for harsh environments.

Designed for serial SPI interface supporting 8 bits per word.

This Microchip EEPROM is well-suited for embedded systems, automotive electronics, industrial controls, and other applications requiring reliable, high-capacity serial memory with extended endurance and automotive-grade qualifications.

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