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STM32L162VC-A датащи(PDF) 90 Page - STMicroelectronics |
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STM32L162VC-A датащи(HTML) 90 Page - STMicroelectronics |
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90 / 128 page ![]() Electrical characteristics STM32L162xC/C-A 90/128 DocID026175 Rev 4 Figure 17. I/O AC characteristics definition 6.3.14 NRST pin characteristics The NRST pin input driver uses CMOS technology. It is connected to a permanent pull-up resistor, RPU (see Table 45) Unless otherwise specified, the parameters given in Table 45 are derived from tests performed under the conditions summarized in Table 13. Table 45. NRST pin characteristics Symbol Parameter Conditions Min Typ Max Unit VIL(NRST)(1) NRST input low level voltage -- - 0.3 VDD V VIH(NRST)(1) NRST input high level voltage - 0.7 VDD -- VOL(NRST)(1) NRST output low level voltage IOL = 2 mA 2.7 V < VDD < 3.6 V -- 0.4 IOL = 1.5 mA 1.65 V < VDD < 2.7 V -- Vhys(NRST)(1) NRST Schmitt trigger voltage hysteresis - - 10%VDD(2) -mV RPU Weak pull-up equivalent resistor(3) VIN = VSS 30 45 60 k Ω VF(NRST)(1) NRST input filtered pulse -- - 50 ns VNF(NRST)(3) NRST input not filtered pulse -350 - - ns 1. Guaranteed by design. 2. With a minimum of 200 mV. 3. The pull-up is designed with a true resistance in series with a switchable PMOS. This PMOS contribution to the series resistance is around 10%. |
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