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DS28E17
1-Wire®-to-I2C Master Bridge
Extend I2C Slave Peripheral Communication Distance up to 100m
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Key Features
Applications/Uses
Parametric specs for 1-Wire Interface Products
| Functions | 1-Wire Bridge |
| VSUPPLY (V) | 2.45 to 3.6 |
| Package/Pins | TQFN/16 |
| Oper. Temp. (°C) | -40 to +85 |
| Budgetary Price (See Notes) | 2.24 |
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Simplified Block Diagram
Technical Docs
| Data Sheet | 1-Wire®-to-I2C Master Bridge | Jan 29, 2018 | |
| App Note | Extending I2C Communication Distance with the DS28E17 |
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 1-Wire Interface Products
| Functions | 1-Wire Bridge |
| VSUPPLY (V) | 2.45 to 3.6 |
| Package/Pins | TQFN/16 |
| Oper. Temp. (°C) | -40 to +85 |
| Budgetary Price (See Notes) | 2.24 |
Key Features
- Converts 1-Wire Communication Protocol to I2C Master I/O
- Operates I2C Slave Peripherals over the Single-Contact, 1-Wire Interface
- Extend I2C Communication Distance with 1-Wire Protocol
- 100 Meters (typ) in Standard Speed for a Properly Configured Network
- Flexible 1-Wire Slave and I2C Master Operational Modes
- Supports 15kbps and 77kbps 1-Wire Protocol with Packetized I2C Data Payloads
- Factory-Programmed, Unique 64-Bit 1-Wire ROM ID Provides Unalterable Serial Number to End Equipment
- Standard 100kHz and 400kHz Communication Rates for I2C
- I2C Clock Stretching Automatically Supported
- Low Power Consumption
- 0.3µA (typ) in Sleep Mode
- 2.6mA (typ) when Operational
- Separate Pins for Sleep and Wakeup Flexibility
- Remote Power Controlled by an Awake Pin
- Sleep Mode Enabled by Sleep Pin or a 1-Wire Device Command
- Easy to Integrate
- 3.3V(nom) Supply, Small 4mm x 4mm x 0.75mm TQFN package, -40°C to +85°C Operation
- Evaluation HW and SW Available
Applications/Uses
- Accessory Identification and Control
- ADCs/DACs
- Display Controllers
- I2C Sensors
Description
The DS28E17 is a 1-Wire slave to I2C master bridge device that interfaces directly to I2C slaves at standard (100kHz max) or fast (400kHz max). Data transfers serially by means of the 1-Wire® protocol, which requires only a single data lead and a ground return. Every DS28E17 is guaranteed to have a unique 64-bit ROM registration number that serves as a node address in the 1-Wire network. Multiple DS28E17 devices can coexist with other devices in the 1-Wire network and be accessed individually without affecting other devices. The DS28E17 allows using complex I2C devices such as display controllers, ADCs, DACs, I2C sensors, etc. in a 1-Wire environment. Each self-timed DS28E17 provides 1-Wire access for a single I2C interface.
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Technical Docs
| Data Sheet | 1-Wire®-to-I2C Master Bridge | Jan 29, 2018 | |
| App Note | Extending I2C Communication Distance with the DS28E17 |
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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