[SAIFUN] General Description The SA25C020 is a 2Mb (512K X 4) CMOS non-volatile serial EEPROM. This device fully conforms to the SPI 4-wire protocol, is enabled through the Chip Select (CSb) pin, and uses Clock (SCK), Data-in (SI) and Data-out (SO) pins to synchronously control data transfer between the SPI microcontroller and the Serial EEPROM. Features • Saifun NROM™ Cell • Serial Peripheral Interface (SPI) Compatible, Supports SPI Modes 0 (0,0) and 3 (1,1) • Byte and Page Write Operation: – 1024 pages (256 Bytes/Page) – Single Byte or Page Write Cycle in 10ms Typical • Single Supply Voltage: 2.7V to 3.6V • 25MHz Clock Rate • Block Write Protection: Protect Quarter, Half or Entire Array • Write Protect Pin and Write Disable Instructions of Both Hardware and Software Data Protection • 100,000 Erase Cycles (Minimum) • More than 20-Year Data Retention • Low-power Standby Current (less than 1µA) • 8-SOIC Narrow Package • MLF Leadless Package • Temperature Range: – Industrial: -40°C to +85°C – Commercial: 0°C to +70°C
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