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DS2480B+

IC, SERIAL LINE DRIVER, 2480, SOIC8

MAXIM INTEGRATED PRODUCTS DS2480B+
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Manufacturer Part No:
DS2480B+
Order Code:
2519441
Technical Datasheet:
DS2480B+   Datasheet
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Product Overview

The DS2480B+ is a serial port to 1-Wire® Interface Chip, supports standard and overdrive speeds. It connects directly to UARTs and 5V RS-232 systems. Interfacing to RS-232C (±12V levels) requires a passive clamping circuit and one 5V to ±12V level translator. Internal timers relieve the host of the burden of generating the time-critical 1-Wire communication waveforms. In contrast to the DS9097(E) where a full character must be sent by the host for each 1-Wire time slot, the DS2480B+ can translate each character into eight 1-Wire time slots, thereby increasing the data throughput significantly. In addition, the DS2480B+ can be set to communicate at four different data rates, including 115.2, 57.6 and 19.2kbps, with 9.6kbps being the power-on default. Command codes received from the host's crystal controlled UART serve as a reference to continuously calibrate the on-chip timing generator.
  • Simplifies design of universal RS-232 COM port to 1-wire® interface 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
  • Slew rate controlled 1-Wire pulldown & active pullup to accommodate long lines and reduce radiation
  • Communicates at data rates of 9.6kbps (default), 19.2kbps, 57.6kbps and 115.2kbps
  • Self-calibrating Time Base with ±5% Tolerance for Serial and 1-Wire Communication
  • User-selectable RXD/TXD Polarity minimizes component count when Interfacing to 5V based RS232 System
  • Smart Protocol Combines Data and Control Information Without Requiring Extra Pins
  • Compatible with optical, IR and RF to RS232 converters
  • Single Product Supports Various iButton® or 1-Wire Device Types for Easy System Integration
  • 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 with external 12V power supply

Warnings

Exposure to absolute maximum rating conditions for extended periods of time may affect reliability. Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.

Product Information

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:
Line

:
RS232

:
1Drivers

:
1Receivers

:
4.5V

:
5.5V

:
SOIC

:
8Pins

:
-40°C

:
85°C

:
-

:
-

:
MSL 1 - Unlimited
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Technical Docs (2)

CAD Downloads

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CAD Models - Notice
CAD Models and drawings are provided to you on a revocable limited licence for your internal use only but remain the property of the manufacturer who retain all intellectual property rights and ownership. They are provided to assist you in decision making and as design guide but are not guaranteed to be error free, accurate or up to date and is not intended to be taken as advice.
Use of these CAD models and other options provided are downloaded and used entirely at your own risk and by continuing you confirm acceptance of the above.

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Deliveries start from 14/07/22

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