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STM8S903K3 bảng dữ liệu(PDF) 19 Page - STMicroelectronics |
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STM8S903K3 bảng dữ liệu(HTML) 19 Page - STMicroelectronics |
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19 / 124 page ![]() DocID15590 Rev 12 19/124 STM8S903K3 STM8S903F3 Product overview 20 4.13 Analog-to-digital converter (ADC1) The STM8S903K3/F3 family products contain a 10-bit successive approximation A/D converter (ADC1) with up to 7 external and 1 internal multiplexed input channels and the following main features: • Input voltage range: 0 to VDD • Conversion time: 14 clock cycles • Single and continuous and buffered continuous conversion modes • Buffer size (n x 10 bits) where n = number of input channels • Scan mode for single and continuous conversion of a sequence of channels • Analog watchdog capability with programmable upper and lower thresholds • Internal reference voltage on channel AIN7 • Analog watchdog interrupt • External trigger input • Trigger from TIM1 TRGO • End of conversion (EOC) interrupt Internal bandgap reference voltage Channel AIN7 is internally connected to the internal bandgap reference voltage. The internal bandgap reference is constant and can be used for example to monitor VDD. It is independent of variations in VDD and ambient temperature TA. 4.14 Communication interfaces The following communication interfaces are implemented: • UART1: Full feature UART, synchronous mode, SPI master mode, Smartcard mode, IrDA mode, single wire mode, LIN2.1 master capability • SPI: Full and half-duplex, 8 Mbit/s • I²C: Up to 400 kbit/s 4.14.1 UART1 Main features • 1 Mbit/s full duplex SCI • SPI emulation • High precision baud rate generator • Smartcard emulation • IrDA SIR encoder decoder • LIN master mode • Single wire half duplex mode |
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