(China (Mainland))
Product Summary
The DS2431P+ 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 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 DS2431P+ communicates over the single-conductor 1-Wire bus. The communication follows the standard 1-Wire protocol. The applications of the DS2431P+ include: (1)Accessory/PCB Identification; (2)Medical Sensor Calibration Data Storage; (3)Analog Sensor Calibration Including IEEE P1451.4 Smart Sensors; (4)Ink and Toner Print Cartridge Identification; (5)After-Market Management of Consumables.
Parametrics
DS2431P+ absolute maximum ratings: (1)IO Voltage Range to GND: -0.5V to +6V; (2)IO Sink Current: 20mA; (3)Operating Temperature Range: -40℃ to +85℃; (4)Junction Temperature: +150℃; (5)Storage Temperature Range:-55℃ to +125℃; (6)Lead Temperature (excluding UCSP, soldering, 10s):+300℃; (7)Soldering Temperature (reflow): +260℃.
Features
DS2431P+ features: (1)1024 Bits of EEPROM Memory Partitioned Into Four Pages of 256 Bits; (2)Individual Memory Pages Can Be Permanently Write Protected or Put in EPROM-Emulation Mode ("Write to 0"); (3)Switchpoint Hysteresis and Filtering to Optimize Performance in the Presence of Noise; (4)IEC 1000-4-2 Level 4 ESD Protection (±8kV Contact, ±15kV Air, Typical); (5)Reads and Writes Over a Wide Voltage Range from 2.8V to 5.25V from -40℃ to +85℃; (6)Communicates to Host with a Single Digital Signal at 15.4kbps or 125kbps Using 1-Wire Protocol; (7)Also Available as Automotive Version Meeting AEC-Q100 Grade 1 Qualification Requirements.
Diagrams
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 DS2431P+ |
Maxim Integrated Products |
EEPROM 1024-Bit 1-Wire EEPROM |
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DS2431P+T&R |
Maxim Integrated Products |
EEPROM 1024-Bit 1-Wire EEPROM |
Data Sheet |
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