Analog Devices / Maxim Integrated DS28E17 1-Wire-to-I2C Master Bridge
Analog Devices DS28E17 1-Wire-to-I2C Master Bridge is a device that interfaces directly to I2C slaves at standard (100kHz max) or fast (400kHz max). Data transfers serially utilizing 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 Analog Devices 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.
Features
- 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
- Converts 1-wire communication protocol to I2C master I/O
- Operates I2C slave peripherals over the single-contact, 1-wire interface
- Easy to integrate
- 3.3V (nom) supply, small 4x4x0.75mm TQFN package, -40°C to +85°C operation
- Evaluation HW and SW available
Applications
- Accessory identification and control
- I2C sensors
- Display controllers
- ADCs/DACs
Typical Operating Circuit
Videos
Evaluation System
Analog Devices / Maxim Integrated DS28E17 Evaluation System
Provides the special hardware and software system to exercise the features of the DS28E17.
Published: 2015-08-25
| Updated: 2023-04-13