The DS2480 is a universal, common-ground serial port to 1-Wire line driver for MicroLAN applications. It works with all iButtons™ and MicroLAN-compatible 1-Wire slave devices, and communicates at regular and Overdrive 1-Wire speed and serial port data rates of 9600 (default), 19200, 57600 and 115200 bps. It also supports 12V EPROM programming and stiff 5V pull-up for Crypto iButton, sensors and EEPROM.
The DS2480 is a universal, common‑ground serial port to 1‑Wire line driver that connects directly to UARTs and 5 V RS‑232 systems. It supports standard and Overdrive 1‑Wire speeds and provides programmable timing, EPROM programming voltage and strong pull‑up capabilities.
The document details pin assignments, command codes, communication functions, and the Search Accelerator feature that speeds up ROM searches on Windows platforms. Electrical specifications, package information and timing diagrams are also included.
| Operating Voltage | 4.5 V to 5.5 V |
|---|---|
| Temperature Range | -40 °C to +85 °C |
| Package | 8‑pin SOIC surface‑mount |
| Supported UART Data Rates | 9600 (default), 19200, 57600, 115200 bps |
| EPROM Programming Voltage | 12 V (VPP pin) |
The default data rate is 9600 bps.
The VPP pin supplies the optional 12 V EPROM programming voltage.
The device is packaged in an 8‑pin SOIC.
It operates from –40 °C to +85 °C.