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DS75LX データシート(PDF) 1 Page - Maxim Integrated Products |
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DS75LX データシート(HTML) 1 Page - Maxim Integrated Products |
1 / 13 page 1 of 13 050307 DS75LX Digital Thermometer and Thermostat with Extended Addressing www.maxim-ic.com GENERAL DESCRIPTION This low-voltage (1.7V to 3.7V) digital thermometer and thermostat provides 9, 10, 11, or 12-bit digital temperature readings over a -55°C to +125°C range with ±2°C accuracy over a -25°C to +100°C range. At power-up, the DS75LX defaults to 9-bit resolution for software compatibility with the LM75. Communication with the DS75LX is achieved through a simple 2-wire serial interface. Three tri-state address pins allow up to 27 DS75LX devices to operate on the same 2-wire bus, which greatly simplifies distributed temperature- sensing applications. The DS75LX thermostat has a dedicated open-drain output (O.S.) and programmable fault tolerance, which allow the user to define the number of consecutive error conditions that must occur before O.S. is activated. There are two thermostatic operating modes that control thermostat operation based on user-defined trip-points (TOS and THYST). APPLICATIONS Any Thermally Sensitive System Cellular Base Stations Telecom Switches and Routers Servers PIN CONFIGURATIONS FEATURES 1.7V to 3.7V Operating Range Tri-State Address Pins Allow Up to 27 Unique Bus Addresses Temperature Measurements Require No External Components Measures Temperatures from -55°C to +125°C (-67°F to +257°F) ±2°C Accuracy from -25°C to +100°C Thermometer Resolution Is User- Configurable from 9 (Default) to 12 Bits (0.5°C to 0.0625°C Resolution) 9-Bit Conversion Time is 25ms (max) Thermostatic Settings are User-Definable Data is Read/Written Through 2-Wire Serial Interface (SDA and SCL Pins) Data Lines Filtered Internally for Noise Immunity (50ns Deglitch) Bus Timeout Feature Prevents Lockup Problems on 2-Wire Interface Multidrop Capability Simplifies Distributed Temperature-Sensing Applications Pin/Software Compatible with the LM75 Available in 8-Pin μSOP (μMAX®) and SO Packages ORDERING INFORMATION PART TEMP RANGE PIN PACKAGE DS75LXS+ -55°C to +125°C 8 SO (150 mils) DS75LXS+T&R -55°C to +125°C 8 SO (150 mils), 2500 Piece DS75LXU+ -55°C to +125°C 8 µSOP (µMAX) DS75LXU+T&R -55°C to +125°C 8 µSOP (µMAX), 3000 Piece + Denotes lead-free package. T&R denotes tape-and-reel. Note: A “+” symbol will also be marked on the package near the pin 1 indicator. µMAX is a registered trademark of Maxim Integrated Products, Inc. SO (150 mils) SCL VDD A0 A1 A2 GND O.S. SDA 6 8 7 5 3 1 2 4 μSOP/μMAX SCL VDD A0 A1 A2 GND O.S. SDA 6 8 7 5 3 1 2 4 |
同様の部品番号 - DS75LX |
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同様の説明 - DS75LX |
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