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Part Number	Status	Replacement	Explanation
DS1481	This product is Not Recommended for New Designs. See Ordering Information for recommended replacements.	DS2480B	The DS1481 is not recommended for new designs and no drop-in replacement is available. The DS2480B (a non drop-in) replacement allows for design of 1-Wire network lengths greater than 3 inches.

Description

FULL DATA SHEET (PDF, 212kB) Download   E-Mail The DS1481 is a bridge chip that enables communication between a parallel interface and a 1-Wire® bus. It supports regular and overdrive 1-Wire communication speeds and derives 1-Wire timing from an internal timing generator. No external components are needed to support the timing generator. While the device is often used in conjunction with a personal computer parallel port controller, it can also be configured to operate with the parallel interface of a microcontroller. DS1481 devices can also be cascaded to support multi-master configurations.

Key Features

Provides a synchronous interface to Dallas Semiconductor 1-Wire devices Compatible with low power parallel ports Can be cascaded with other DS1481's Allows print spooler and other processes to run during 1-Wire I/O Provides high-speed communcation with overdrive capable devices Space saving 14-pin (150mil), SO package

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