25A512 - Microchip Technology

25A512 512 Kbit SPI Bus Serial EEPROM

The Microchip Technology Inc. 25A512 is a 512 Kbit serial EEPROM memory with byte-level and page-level serial EEPROM functions. It also features Page, Sector and Chip erase functions typically associated with Flash-based products. These functions are not required for byte or page write operations. The memory is accessed via a simple Serial Peripheral Interf.

Features

• 10 MHz max. Clock Speed
• Byte and Page-level Write Operations - 128-byte page - 5 ms max. - No page or sector erase required
• Low-Power CMOS Technology - Max. Write Current: 5 mA at 3.0V, 10 MHz - Read Current: 10 mA at 3.0V, 10 MHz - Standby Current: 1A at 2.5V (Deep powerdown)
• Electronic Signature for Device ID
• Self-Timed Erase and Write cycles - Page Erase (5 ms, typical) - Sector Erase (10 ms/sector, typical) - Bulk Erase (10 ms, typical)
• Sector Write Protection (16K byte/sector) - Protect none, 1/4, 1/2 or all of array
• Built-In Write Protection - Power-on/off data protection.