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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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ST92F120JR9T датащи(PDF) 297 Page - STMicroelectronics |
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ST92F120JR9T датащи(HTML) 297 Page - STMicroelectronics |
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297 / 320 page  297/320 ST92F120 - ELECTRICAL CHARACTERISTICS EXTERNAL INTERRUPT TIMING TABLE (VDD =5V ± 10%, TA = –40°C to +105°C, CLoad = 50pF, fINTCLK = 24MHz, unless otherwise specified) Note: The value in the left hand column shows the formula used to calculate the timing minimum or maximum from the oscillator clock period. The value in the right hand two columns shows the timing minimum and maximum for an internal clock at 24MHz (INTCLK) . Measurement points are VIH for positive pulses and VIL for negative pulses. (1) Formula guaranteed by design. Legend: Tck = INTCLK period = OSCIN period when OSCIN is not divided by 2; 2 x OSCIN period when OSCIN is divided by 2; OSCIN period x PLL factor when the PLL is enabled. EXTERNAL INTERRUPT TIMING N ° Symbol Parameter Value Unit Formula (1) Min 1 TwINTLR Low Level Minimum Pulse Width in Rising Edge Mode ≥Tck+10 50 ns 2 TwINTHR High Level Minimum Pulse Width in Rising Edge Mode ≥Tck+10 50 ns 3 TwINTHF High Level Minimum Pulse Width in Falling Edge Mode ≥Tck+10 50 ns 4 TwINTLF Low Level Minimum Pulse Width in Falling Edge Mode ≥Tck+10 50 ns 1 |
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