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データシートサーチシステム |
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データシートサーチシステム |
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STCN75 データシート(PDF) 6 Page - STMicroelectronics |
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STCN75 データシート(HTML) 6 Page - STMicroelectronics |
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6 / 35 page  Description STCN75 6/35 1 Description The STCN75 is a high-precision digital CMOS temperature sensor IC with a sigma-delta temperature-to-digital converter and an I2C-compatible serial digital interface (see Figure 1 on page 7). It is targeted for general applications such as personal computers, system thermal management, electronics equipment, and industrial controllers, and is packaged in the industry standard 8-lead TSSOP and SO8N packages. The device contains a band gap temperature sensor and 9-bit ADC which monitor and digitize the temperature to a resolution up to 0.5°C. The STCN75 is typically accurate to (±3°C - max) over the full temperature measurement range of –55°C to 125°C with ±2°C accuracy in the –25°C to +100°C range. The STCN75 is pin-for-pin and software compatible with the TCN75. STCN75 is specified for operating at supply voltages from 2.7 V to 5.5 V. Operating at 3.3 V, the supply current is typically (125 µA). The on-board sigma-delta analog-to-digital converter (ADC) converts the measured temperature to a digital value that is calibrated in degrees centigrade; for Fahrenheit applications a lookup table or conversion routine is required. The STCN75 is factory-calibrated and requires no external components to measure temperature. 1.1 Serial communications The STCN75 has a simple 2-wire I2C-compatible digital serial interface which allows the user to access the data in the temperature register at any time. It communicates via the serial interface with a master controller which operates at speeds up to 400 kHz. Three pins (A0, A1, and A2) are available for address selection, and enable the user to connect up to 8 devices on the same bus without address conflict. In addition, the serial interface gives the user easy access to all STCN75 registers to customize operation of the device. |
同様の部品番号 - STCN75_08 |
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同様の説明 - STCN75_08 |
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