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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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STA8100GA датащи(PDF) 19 Page - STMicroelectronics |
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STA8100GA датащи(HTML) 19 Page - STMicroelectronics |
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19 / 42 page  DS13006 Rev 4 19/42 STA8100GA General description 33 3.17 Temperature sensor Thermal sensor provides digital measurement of junction temperature. Temperature measurement range is -40 to 125 °C. It uses integrated bandgap reference and 8-bit ADC. The temperature sensor provides two threshold registers. Writing in these registers and enabling the threshold mode compare the temperature recorded with the threshold value. If the temperature is higher than the upper threshold register or lower than the lower threshold register, it generates an interrupt if enabled. 3.18 Serial boot pins UART2-TX (Boot0) pin is used to select the boot configuration of Cortex® M7. The ROM code starts the boot process which then reads the PRCC register (UART2-TX) which has already latched the UART2-TX pin (C8 ball) status after latch reset. Based on this register value, the code is loaded from one of the two options as given in the table below: Table 8. Antenna sensing current - power rising Current from antenna (when current is rising) SENSE<1> SENSE<0> I < 24 mA 0 0 24 ≤ I ≤ 62 mA 0 1 I > 62 mA 1 1 Table 9. Antenna sensing current - power falling Current sunk from antenna (when current is falling) SENSE<1> SENSE<0> I > 53 mA 1 1 16 ≤ I ≤ 53 mA 0 1 I < 16 mA 0 0 Table 10. Temperature sensor Symbol Parameter Test condition Min. Typ. Max. Unit Tsens Sensitivity — — — 1 °C Tacc(1) Accuracy Calibration performed at 125°C +/-3(2) —+/-10 °C 1. Best accuracy is at calibrated temperature. 2. Limited by manufacturing calibration environment. |
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