DS2431 Datasheet

Part No.	In Stock	Price	Packaging	SPQ	Marking	MSL	Pins	Temp Range	Package Description
DS2431X-S+	5000pcs	$1.431	Reel	2500	DS2431	1	6	-40°C ~ 85°C	6-UCSPR (1.68x1.68)

• Easily Add Traceability and Relevant Information to Any Individual System
  • 1024 Bits of EEPROM Memory Partitioned Into Four Pages of 256 Bits
  • Individual Memory Pages Can Be Permanently Write Protected or Put in EPROM-Emulation Mode (Write to 0)
  • Switchpoint Hysteresis and Filtering to Optimize Performance in the Presence of Noise
• Minimalist 1-Wire Interface Lowers Cost and Interface Complexity
  • IEC 1000-4-2 Level 4 ESD Protection (±8kV Contact, ±15kV Air, typ)
  • Reads and Writes Over a Wide Voltage Range from 2.8V to 5.25V from -40°C to +85°C
  • Communicates to Host with a Single Digital Signal at 15.4kbps or 125kbps

• Accessory/PC Board Identification
• After-Market Management of Consumables
• Analog Sensor Calibration Including IEEEP 1451.4 Smart Sensors
• Ink and Toner Print Cartridge Identification
• Medical Sensor Calibration Data Storage

The DS2431 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 DS2431 communicates over the single-conductor 1-Wire bus. The communication follows the standard 1-Wire protocol. Each device has its own unalterable and unique 64-bit ROM registration number that is factory lasered into the chip. The registration number is used to address the device in a multidrop, 1-Wire net environment.