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MC9S08QA2CFQEE bảng dữ liệu(PDF) 9 Page - Freescale Semiconductor, Inc |
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MC9S08QA2CFQEE bảng dữ liệu(HTML) 9 Page - Freescale Semiconductor, Inc |
9 / 32 page Electrical Characteristics MC9S08QA4 Series MCU Data Sheet, Rev. 3 Freescale Semiconductor 9 Figure 3. Pullup and Pulldown Typical Resistor Values (VDD = 3.0 V) Figure 4. Typical Low-Side Driver (Sink) Characteristics — Low Drive (PTxDSn = 0) Figure 5. Typical Low-Side Driver (Sink) Characteristics — High Drive (PTxDSn = 1) 6 Input must be current-limited to the value specified. To determine the value of the required current-limiting resistor, calculate resistance values for positive and negative clamp voltages, then use the larger of the two values. 7 Power supply must maintain regulation within operating V DD range during instantaneous and operating maximum current conditions. If positive injection current (VIn > VDD) is greater than IDD, the injection current may flow out of VDD and could result in external power supply going out of regulation. Ensure external VDD load will shunt current greater than maximum injection current. This will be the greatest risk when the MCU is not consuming power. Examples are: if no system clock is present, or if clock rate is very low (which would reduce overall power consumption). PULLUP RESISTOR TYPICALS VDD (V) 20 25 30 35 40 1.8 2 2.2 2.4 2.6 2.8 3 3.2 3.4 3.6 25°C 85°C –40°C PULLDOWN RESISTOR TYPICALS VDD (V) 20 25 30 35 40 1.8 2.3 2.8 3.3 25°C 85°C –40°C 3.6 TYPICAL VOL VS IOL AT VDD = 3.0 V IOL (mA) 0 0.2 0.4 0.6 0.8 1 1.2 0 5 10 15 20 TYPICAL VOL VS VDD VDD (V) 0 0.05 0.1 0.15 0.2 12 34 25°C 85°C –40°C 25°C, IOL = 2 mA 85°C, IOL = 2 mA –40°C, IOL = 2 mA TYPICAL VOL VS IOL AT VDD = 3.0 V IOL (mA) 0 0.2 0.4 0.6 0.8 1 010 20 30 TYPICAL VOL VS VDD VDD (V) 0 0.1 0.2 0.3 0.4 12 34 IOL = 6 mA IOL = 3 mA IOL = 10 mA 25°C 85°C –40°C 25°C 85°C –40°C |
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