DS2480 - Dallas Semiconducotr

DS2480 Serial 1-Wire Line Driver

GND Ground 1-W 1-Wire Input/Output NC No Connection VDD 4.5 to 5.5V VPP Optional EPROM Programming Voltage POL RXD/TXD Polarity Select TXD Serial Data from UART RXD Serial Data to UART ORDERING INFORMATION DS2480S 8-pin SOIC 1 of 33 012501 DS2480 DESCRIPTION The DS2480 is a serial port to 1-Wire interface chip that supports standard and Overd.

Features

Universal, common-ground serial port to 1-WireTM line driver for MicroLANTM applications Works with all iButtons™ and MicroLANcompatible 1-Wire slave devices Communicates at regular and Overdrive 1-Wire speed and serial port data rates of 9600 (default), 19200, 57600 and 115200 bps Supports 12V EPROM programming and stiff 5V pull-up for Crypto iButton, sensors and EEPROM Self-calibrating time base with ±5% tolerance for serial and 1-Wire communication Slew rate controlled 1-Wire pull-down and active pull-up to accommodate long lines and reduce radiation User-selectable RXD/TXD polarity minimiz.