The DS2431+T&R is a 1024bit, 1-wire EEPROM in 3 pin TO-92 package. This chip is organized as four memory pages of 256bits each. Data is written to an 8byte scratchpad is verified and then copied to 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 1 to 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 64bit 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. The device is used in PCB identification, analogue sensor calibration including IEEE P1451.4 smart sensors, ink and toner print cartridge identification and after market management of consumables.
Specifications:
IC Case / Package: TO-92
Supply Voltage Min: 2.8V
Operating Temperature Min: -40°C
Memory Density: 1Kbit
No. of Pins: 3Pins
Clock Frequency Max: –
Product Range: 1Kbit 1-Wire Serial EEPROM
IC Mounting: Through Hole
Memory Configuration: 4 x 256bit
Supply Voltage Max: 5.25V
Interfaces: Serial 1-Wire
Operating Temperature Max: 85°C
Package Includes:
1 x DS2431+T&R-ANALOG DEVICES-EEPROM, 1 Kbit, 4 x 256bit, Serial 1-Wire, TO-92, 3 Pins
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