General Description

 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 EEPROM provides 200,000 cycles of write/erase endurance at +25°C. The DS24B33 is software compatible to the DS2433.

Features

♦ 4096 Bits of Nonvolatile EEPROM Partitioned Into Sixteen 256-Bit Pages

♦ Read and Write Access is Highly Backward Compatible to the DS2433

♦ 256-Bit Scratchpad with Strict Read/Write Protocols Ensures Integrity of Data Transfer

♦ 200,000 Write/Erase Cycle Endurance at +25°C

♦ 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