Microchip Technology, Inc. Memory AT25640B-MAPDGV-E

The AT25640B-MAPDGV-E is a 64 Kbit (8,192 x 8) Serial EEPROM from Quarktwin Technology Ltd. It operates using a Serial Peripheral Interface (SPI) and supports SPI Modes 0 and 3. The device is designed for automotive applications, meeting AEC-Q100 standards, and is available in low-voltage (2.5V to 5.5V) and medium-voltage (1.7V to 5.5V) operation grades. The temperature range for Grade 1 is -40¬8C to +125¬8C, while Grade 3 operates from -40¬8C to +85¬8C. This EEPROM features a maximum clock rate of 5 MHz, a 32-byte page mode for efficient data writing, and block write protection options. It includes a write-protect (WP) pin and supports both hardware and software data protection mechanisms. The write cycle is self-timed, with a maximum duration of 5 ms, and the device boasts high reliability with an endurance of 1,000,000 write cycles and a data retention period of 100 years. The product is available in green packaging options, compliant with RoHS standards.