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STM8L101x2 Datasheet(PDF) 53 Page - STMicroelectronics |
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STM8L101x2 Datasheet(HTML) 53 Page - STMicroelectronics |
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53 / 88 page ![]() DocID15275 Rev 16 53/88 STM8L101x1 STM8L101x2 STM8L101x3 Electrical parameters 63 NRST pin The NRST pin input driver is CMOS. A permanent pull-up is present. RPU(NRST) has the same value as RPU (see Table 26 on page 48). Subject to general operating conditions for VDD and TA unless otherwise specified. Figure 30. Typical NRST pull-up resistance RPU vs. VDD Table 30. NRST pin characteristics Symbol Parameter Conditions Min Typ (1) Max Unit VIL(NRST) NRST input low level voltage (1) 1. Guaranteed by characterization results. -VSS -0.8 V VIH(NRST) NRST input high level voltage (1) -1.4 - VDD VOL(NRST) NRST output low level voltage IOL = 2 mA - - VDD-0.8 RPU(NRST) NRST pull-up equivalent resistor (2) 2. The RPU pull-up equivalent resistor is based on a resistive transistor (Figure 30). Corresponding IPU current characteristics are described in Figure 31. -30 45 60 k Ω VF(NRST) NRST input filtered pulse (3) 3. Guaranteed by design. -- - 50 ns tOP(NRST) NRST output pulse width - 20 - - ns VNF(NRST) NRST input not filtered pulse (3) - 300 - - ns |
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