Adesto Technologies Corporation, Inc. Memory - Flash - AT45DB641E-SHN2B-T AT45DB641E-SHN2B-T

The AT45DB641E-SHN2B-T is a 64-Mbit DataFlash memory device from Quarktwin Technology Ltd., designed for use with a single supply voltage ranging from 1.7 V to 3.6 V. It features a Serial Peripheral Interface (SPI) that supports modes 0 and 3, with a maximum clock frequency of 85 MHz. The device allows continuous read capability across the entire memory array and offers a low-power read option at up to 15 MHz. This memory chip includes user-configurable page sizes of 256 bytes or 264 bytes, with two independent SRAM data buffers for efficient data handling. It supports various programming and erasing options, including byte/page programming and multiple erase methods (page, block, sector, and chip erase). The device also incorporates advanced data protection features, such as individual sector protection and a one-time programmable security register. Power consumption is minimized with ultra-deep power-down modes, achieving typical currents of 400 nA in ultra-deep power-down and 5 µA in deep power-down. The memory has a minimum endurance of 100,000 program/erase cycles per page and a data retention period of 20 years. It is available in multiple packaging options, including an 8-lead SOIC and two DFN variants, and complies with RoHS standards. This product is suitable for applications requiring reliable and efficient flash memory solutions.