DS2431 - Maxim Integrated

DS2431 1-Wire EEPROM

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.

Features

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● 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
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● 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 Sing.