The DS24B33 is a 4096-bit, 1-Wire® EEPROM organized as 16 memory pages of 256 bits each. Data is written to a 32-byte scratchpad, verified, and then copied to the EEPROM memory.
The DS24B33 communicates over a single-conductor 1-Wire bus. The communication follows the standard 1-Wire protocol. Each device has its own unalterable and unique 64-bit registration number that is factory programmed into the chip. The registration number is used to address the device in a multidrop 1-Wire net environment. The DS24B33 is software compatible to the DS2433. Applications Storage of Calibration Constants Board Identification Storage of Product Revision Status Features
4096 Bits of Nonvolatile EEPROM Partitioned Into Sixteen 256-Bit Pages Read and Write Access is Highly BackwardCompatible to the DS2433
256-Bit Scratchpad with Strict Read/Write Protocols Ensures Integrity of Data Transfer ♦ Unique, Factory-Programmed, 64-Bit Registration Number Ensures Error-Free Device Selection and Absolute Part Identity
Switchpoint Hysteresis to Optimize Performance in the Presence of Noise Communicates to Host at 15.4kbps or 125kbps Using 1-Wire Protocol
Low-Cost Through-Hole and SMD Packages
Operating Range: +2.8V to +5.25V, -40°C to +85°C
IEC 1000-4-2 Level 4 ESD Protection (±8kV Contact, ±15kV Air, Typical) for IO Pin
