DS2490
Description
The DS2490 is a bridge chip that enables communication between a USB host system and a 1-Wire bus. It provides regular, overdrive, and flexible 1-Wire communication speeds and a full-speed 12Mbps connection to USB.
Key Features
- Communicates at regular and overdrive 1Wire® speeds
- Supports stiff 5V pullup for EEPROM, sensors, and crypto iButton®
- Slew rate controlled 1-Wire timing and active pullup to accommodate long 1-Wire network lines and reduce radiation
- Programmable 1-Wire timing and driver characteristics accommodate a wide range of 1-Wire network configurations
- Low- to high-level command types, including macros, for generating 1-Wire communication
- Crystal oscillator timebase provides precision timed 1-Wire waveforms
- High-speed 12Mbps Universal Serial Bus (USB) interface
- Integrated USB-compliant transceiver
- Supports USB remote wake-up from a 1-Wire device event to resume a suspended host system
- 0oC to +70oC operating temperature range
