DS28E07+

DS28E07+ is a 1024-bit, 1-Wire® EEPROM chip organized as four memory pages of 256 bits each. Data is written to an 8-byte scratchpad, verified, and then copied to the EEPROM memory. As a special feature, the four user memory pages can be write-protected or put in EPROM-emulation mode, where bits can only be changed from a 1 to a 0 state. The communication follows the 1-Wire protocol with the ROM ID acting as node address in the case of a multiple-device 1-Wire network. Typical applications include accessory/PCB identification, medical sensor calibration data storage, analogue sensor calibration including IEEE P1451.4 smart sensors, ink and toner print cartridge identification, after-market management of consumables.

• Partitioning of memory provides greater flexibility in programming user data
• Unique factory-programmed, unalterable 64-bit identification number
• Switchpoint hysteresis and filtering to optimize performance in the presence of noise
• ±8kV HBM ESD protection (typ) for IO pin
• 1-wire pullup voltage range from 3 to 5.25V at TA=-40°C to +85°C
• Programming current is 1.2mA maximum at TA=-40°C to +85°C
• Programming time is 12ms maximum at TA=-40°C to +85°C
• Data retention is 10 years at TA=+85°C
• Temperature range from -40°C to +85°C
• 3 TO-92 package

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