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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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STM32G071C8 датащи(PDF) 105 Page - STMicroelectronics |
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STM32G071C8 датащи(HTML) 105 Page - STMicroelectronics |
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105 / 133 page  DS12232 Rev 3 105/133 STM32G071x8/xB Electrical characteristics 106 Figure 31. I2S master timing diagram (Philips protocol) 1. Based on characterization results, not tested in production. 2. LSB transmit/receive of the previously transmitted byte. No LSB transmit/receive is sent before the first byte. USART characteristics Unless otherwise specified, the parameters given in Table 72 for USART are derived from tests performed under the ambient temperature, fPCLKx frequency and supply voltage conditions summarized in Table 21: General operating conditions. The additional general conditions are: • OSPEEDRy[1:0] set to 10 (output speed) • capacitive load C = 30 pF • measurement points at CMOS levels: 0.5 x VDD Refer to Section 5.3.14: I/O port characteristics for more details on the input/output alternate function characteristics (NSS, CK, TX, and RX for USART). MSv39720V1 CPOL = 0 CPOL = 1 tc(CK) WS output SDreceive SDtransmit tw(CKH) tw(CKL) tsu(SD_MR) tv(SD_MT) th(SD_MT) th(WS) th(SD_MR) MSB receive Bitn receive LSB receive MSB transmit Bitn transmit LSB transmit tf(CK) tr(CK) tv(WS) LSB receive(2) LSB transmit(2) 10% 90% Table 72. USART characteristics Symbol Parameter Conditions Min Typ Max Unit fCK USART clock frequency Master mode - - 8 MHz Slave mode - - 21 |
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