Analog Devices / Maxim Integrated DS28E17 1-Wire-to-I2Cマスターブリッジ
Maxim Integrated DS28E17 1-Wire-to-I2Cマスターブリッジは、標準（最大100kHz）または高速（最大）でI2Cスレーブに直接インターフェース接続するデバイスです。1-Wire®プロトコルを用いたシリアルデータ転送は、単一のデータリードとグランドリターンのみを必要とします。全てのDS28E17は、1-Wireネットワークでのノードアドレスとなる固有の64ビットROM登録番号が必ずあります。
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.
特徴
- 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
アプリケーション
- Accessory identification and control
- I2C sensors
- Display controllers
- ADCs/DACs
Typical Operating Circuit
ビデオ
Evaluation System
Analog Devices / Maxim Integrated DS28E17評価システム
DS28E17の機能を実行するための特別なハードウェアとソフトウェアシステムを実現しています。
公開: 2015-08-25
| 更新済み: 2023-04-13