Microchip Technology has expanded its 32 Kbit SPI serial EEPROM family with the 25AA320A and 25LC320A (25XX320A) devices. Capable of speeds up to 10 MHz, these devices are available in very low-profile MSOP and TSSOP packages, as well as most standard packages. They enable customers to easily upgrade 32 Kbit designs to 10 MHz. They are built on Microchip's proprietary PMOS electrically erasable cell (PEEC) architecture, which enables high-density devices to be placed in small packages, while maintaining high endurance (1 million erase/write cycles), very long retention time (200 years) and the ability to operate at high speeds even in harsh environments. Examples of such environments include the high temperatures found in automotive applications. The 25XX320A SPI serial EEPROMs provide fast byte- and page-level erase and write operations, as well as rapid data-access times. They are offered in 8-pin PDIP, SOIC, MSOP packages, as well as TSSOP package pinouts, enabling 'drop-in' upgrades.
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