DS28E07P+T

DS28E07P+T 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 individually be write-protected or put in EPROM-emulation mode, where bits can only be changed from a 1 to a 0 state. The device has its own guaranteed unique 64-bit ROM identification number (ROM ID) that is factory programmed into the chip. The communication follows the 1-Wire protocol with the ROM ID acting as the node address in the case of a multiple-device 1-Wire network. Applications include accessory/PCB identification, medical sensor calibration data storage, analog sensor calibration including IEEE P1451.4 smart sensors, ink and toner print cartridge identification, and after-market management of consumables.

• Partitioning of memory provides greater flexibility in programming user data
• 1024 bits of EEPROM memory organized as four pages of 256bits
• Individual memory pages can permanently write protected or put in EPROM-emulation mode (write to 0)
• Unique factory-programmed, unalterable 64-bit identification number
• Switch point hysteresis and filtering to optimize performance in the presence of noise
• Reads and writes over a wide voltage range from 3.0V to 5.25V
• ±8kV HBM ESD protection (typ) for IO pin
• Recovery time is 5µs min at standard speed, RPUP=2200 ohm
• EEPROM programming current is 1.2mA max at TA=-40°C to +85°C
• 6 TSOC package, -40°C to +85°C temperature range