DS2480S

The DS2480S is designed as a serial port to 1-wire interface chip that supports standard and overdrive speeds. It connects directly to UARTs and 5V RS232 systems.

DS2480S has many features. (1)Universal, commonground serial port to 1-wireTM line driver for MicroLANTM applications. (2)Works with all ibuttons and microLANcompatible 1-wire slave devices. (3)Communicates at regular and overdrive 1wire speed and serial port data rates of 9600 (default), 19200, 57600 and 115200bps. (4)Supports 12V EPROM programming and stiff 5V pullup for crypto ibutton, sensors and EEPROM. (5)Selfcalibrating time base with ±5% tolerance for serial and 1wire communication. (6)Slew rate controlled 1-wire pulldown and active pullup to accommodate long lines and reduce radiation. (7)Userselectable RXD/TXD polarity minimizes component count when interfacing to 5V based RS232 systems or directly to UARTs. (8)Programmable 1wire timing and driver characteristics accommodate a wide range of MicroLAN configurations at regular speed. (9)Smart protocol combines data and control information without requiring extra pins. And so on.

Some absolute maximum ratings of DS2480S have been concluded into several points as follow. (1)Its voltage on 1-wire to ground would be from -0.5V to +14.0V. (2)Its voltage on RXD, TXD, POL to ground would be from -0.5V to +7.0V. (3)Its operating temperature range would be from -40°C to +85°C. (4)Its storage temperature range would be from -55°C to +125°C. (5)Its soldering temperature would be from 260°C for 10 seconds. It should be noted that stresses above those listed in absolute maximum ratings may cause permanent damage to device.

Also some electrical characteristics of DS2480S are concluded as follow. (1)Its supply voltage would be min 4.5V and typ 5.0V and max 5.5V. (2)Its programming voltage would be min 11.75V and max 12.25V. (3)Its operating current would be typ 3.0mA and max 5.0mA. And so on. If you have any question or suggestion or want to know more information please contact us for details. Thank you!