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EEPROM, 1 Mbit, 128K x 8bit, Serial SPI, 20 MHz, SOJ, 8 PinsProduct OverviewThe 25AA1024-I/SM is a 1024Kbit serial Electrically Erasable ProgrammableRead-only Memory (EEPROM) with byte-level and page-level serial EEPROMfunctions. It also features page, sector and chip erase functions typicallyassociated with flash-based products. These functions are not required for byteor page write operations. The memory is accessed via a simple serial peripheralinterface (SPI) compatible serial bus. The bus signals required are a clockinput (SCK) plus separate data in (SI) and data out (SO) lines. Access to thedevice is controlled by a chip select (CS) input. Communication to the devicecan be paused via the hold pin (HOLD). While the device is paused, transitionson its inputs will be ignored, with the exception of Chip Select, allowing thehost to service higher priority interrupts.Low-power CMOS technologyElectronic signature for device IDSelf-timed erase and write cycles6ms Maximum write cycle timeSector write protection (32kB/sector)Built-in write protectionHigh reliability7mA at 5.5V Maximum write current10mA at 5.5V/20MHz Maximum read current1µA at 2.5V, 85°C (deep power-down) Standby currentApplicationsComputers & Computer Peripherals, AutomotiveProduct InformationMemory Interface Type: Serial SPIIC Interface Type: SPIMemory Size: 1MbitEEPROM Memory Configuration: 128K x 8bitClock Frequency: 20MHzMemory Case Style: SOJNo. of Pins: 8PinsSupply Voltage Min: 1.8VSupply Voltage Max: 5.5VOperating Temperature Min: -40°COperating Temperature Max: 85°CProduct Range: 1Mbit SPI Serial EEPROMMSL: MSL 1 - Unlimited
