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DS24B33
1-Wire 4Kb EEPROM
With a Single Dedicated Contact, Easily Add EEPROM to Cables and Sensors to Store Nonvolatile Calibration Data
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Key Features
Applications/Uses
Parametric specs for Memory (EPROM, EEPROM, ROM, NV SRAM)
| Applications | Print Cartridge Authentication |
| Memory Type | EEPROM |
| Memory Size | 4K x 1 |
| Bus Type | 1-Wire |
| VSUPPLY (V) (min) | 2.8 |
| VSUPPLY (V) (max) | 5.25 |
| Package/Pins | SFN/2 SOIC (W)/8 TDFN/6 TO92/3 |
| Budgetary Price (See Notes) | 1.49 |
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Technical Docs
| Data Sheet | 1-Wire 4Kb EEPROM | Jun 13, 2012 | |
| Tutorial | Guidelines for Reliable Long Line 1-Wire Networks | ||
| App Note | Transitioning from the DS2433 to the DS24B33 4Kb 1-Wire® EEPROM | ||
| Tutorial | How to Build a 1-Wire® Evaluation Kit | ||
| App Note | Understanding the DS1WM Synthesizable 1-Wire Bus Master | ||
| App Note | Wirelessly Powering and Accessing a 1-Wire Network |
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
Parameters
Parametric specs for Memory (EPROM, EEPROM, ROM, NV SRAM)
| Applications | Print Cartridge Authentication |
| Memory Type | EEPROM |
| Memory Size | 4K x 1 |
| Bus Type | 1-Wire |
| VSUPPLY (V) (min) | 2.8 |
| VSUPPLY (V) (max) | 5.25 |
| Package/Pins | SFN/2 SOIC (W)/8 TDFN/6 TO92/3 |
| Budgetary Price (See Notes) | 1.49 |
Key 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
- 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
Applications/Uses
- Board Identification
- Medical Sensor Calibration Data Storage
- Smart Cables
- Storage of Calibration Constants
- Storage of Product Revision Status
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 DS24B33 is software compatible to the DS2433.
Technical Docs
| Data Sheet | 1-Wire 4Kb EEPROM | Jun 13, 2012 | |
| Tutorial | Guidelines for Reliable Long Line 1-Wire Networks | ||
| App Note | Transitioning from the DS2433 to the DS24B33 4Kb 1-Wire® EEPROM | ||
| Tutorial | How to Build a 1-Wire® Evaluation Kit | ||
| App Note | Understanding the DS1WM Synthesizable 1-Wire Bus Master | ||
| App Note | Wirelessly Powering and Accessing a 1-Wire Network |
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
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