资 源 简 介
The Microchip Technology Inc. 25AA512 is a 512 Kbitserial EEPROM memory with byte-level and page-levelserial EEPROM funcTIons. It also features Page, Sectorand Chip erase funcTIons typically associated withFlash-based products. These funcTIons are not requiredfor byte or page write operaTIons. The memory isaccessed via a simple Serial Peripheral Interface (SPI)compatible serial bus. The bus signals required are aclock input (SCK) plus separate data in (SI) and data out(SO) lines. Access to the device is controlled by a ChipSelect (CS) input.Communication to the device can be paused via thehold pin (HOLD). While the device is paused, transitionson its inputs will be ignored, with the exception ofChip Select, allowing the host to service higher priorityinterrupts.The 25AA512 is available in standard packages including8-lead PDIP, SOIC, and advanced 8-lead DFNpackage. All packages are Pb-free and RoHScompliant.
