Analog Devices / Maxim Integrated DS2431 1024-Bit 1-Wire® EEPROM
Analog Devices DS2431 1024-Bit 1-Wire® EEPROM Chip is 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. The four memory pages of the DS2431 can be individually 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 DS2431 device has its own unalterable and unique 64-bit ROM registration number factory lasered into the chip. The registration number addresses the device in a multidrop, 1-Wire net environment. These devices are designed for various applications, including accessory / PCB identification, medical sensor calibration data storage, and analog sensor calibration.
Features
- 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, typical)
- Reads and Writes Over a Wide Voltage Range of 2.8V to 5.25V from -40°C to +85°C
- Communicates to Host with a Single Digital Signal at 15.4kbps or 125kbps Using 1-Wire Protocol
Applications
- Accessory/PCB Identification
- Medical Sensor Calibration Data Storage
- Analog Sensor Calibration Including IEEE P1451.4 Smart Sensors
- Ink and Toner Print Cartridge Identification
- After-Market Management of Consumables
Block Diagram
게시일: 2011-07-18
| 갱신일: 2023-04-13