DS9097U-S09
Universal 1-Wire COM Port Adapter
Part Details
- True-Ground Interface to an RS-232 COM Port for Reading and Writing 1-Wire Devices
- Works with Bipolar as well as Unipolar Logic Signals
- Compatible to COM port of (±)5V to (±)12V (DB9 Version Only) or (±)6V to (±)12V (DB25 Version)
- Supports Reading and Writing at Standard and Overdrive Speeds
- Provides Strong Pullup to 5V for Temperature and EEPROM 1-Wire Devices
- Programs 1-Wire EPROM Devices (DB-25 Version with External 12V Power Supply Only)
- Communicates at Data Rates of 9.6kbps (default), 19.2kbps, 57.6kbps, and 115.2kbps
- Standard DB9 or DB25 Female Connector and 6-Lead RJ11 Connector for Easy Attachment of Standard 1-Wire Cables and Probes
- Includes DS2502 Identification Chip (DS9097U-009 Only)
The DS9097U is a sophisticated RS-232 to 1-Wire® adapter, which performs RS-232 level conversion and actively generates the 1-Wire communication signals. Together with an adequate software driver, it enables a Windows®-based PC to directly communicate with any 1-Wire device connected to the adapter's RJ11 port. The DB9 version reads and writes any non-EPROM 1-Wire device. To write to EPROM devices, the DB25 version with external power supply is required. For a list of suitable 1-Wire network cables, refer to the Connectivity Matrix table in the DS1402x 1-Wire network cables data sheet.
All DS9097U adapters are based on the DS2480B serial 1-Wire line driver chip. The RXD/TXD polarity select input of the DS2480B is connected to VDD (noninverting).
Free software drivers can be downloaded from .
Documentation
This is the most up-to-date revision of the Data Sheet.
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