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C8051F310 数据表(PDF) 39 Page - Silicon Laboratories |
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C8051F310 数据表(HTML) 39 Page - Silicon Laboratories |
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39 / 228 page ![]() Rev. 1.7 39 C8051F310/1/2/3/4/5/6/7 4. Pinout and Package Definitions Table 4.1. Pin Definitions for the C8051F31x Name Pin Numbers Type Description ‘F310/2/4 ‘F311/3/5 ‘F316/7 VDD 4 4 4 Power Supply Voltage. GND 3 3 3 Ground. RST/ C2CK 5 5 5 D I/O D I/O Device Reset. Open-drain output of internal POR. An external source can initiate a system reset by driving this pin low for at least 10 µs. Clock signal for the C2 Debug Interface. P3.0/ C2D 6 6 6 D I/O D I/O Port 3.0. See Section 13 for a complete description. Bi-directional data signal for the C2 Debug Interface. P0.0/ VREF 2 2 2 D I/O A In Port 0.0. See Section 13 for a complete description. External VREF input. (‘F310/1/2/3 only) P0.1 1 1 1 D I/O Port 0.1. See Section 13 for a complete description. P0.2/ XTAL1 32 28 24 D I/O A In Port 0.2. See Section 13 for a complete description. External Clock Input. This pin is the external oscillator return for a crystal or resonator. P0.3/ XTAL2 31 27 23 D I/O A Out or D In Port 0.3. See Section 13 for a complete description. External Clock Output. For an external crystal or reso- nator, this pin is the excitation driver. This pin is the external clock input for CMOS, capacitor, or RC oscil- lator configurations. P0.4 30 26 22 D I/O Port 0.4. See Section 13 for a complete description. P0.5 29 25 21 D I/O Port 0.5. See Section 13 for a complete description. P0.6/ CNVSTR 28 24 20 Port 0.6. See Section 13 for a complete description. ADC0 External Convert Start Input. (‘F310/1/2/3 only) P0.7 27 23 19 D I/O Port 0.7. See Section 13 for a complete description. P1.0 26 22 18 D I/O or A In Port 1.0. See Section 13 for a complete description. P1.1 25 21 17 D I/O or A In Port 1.1. See Section 13 for a complete description. P1.2 24 20 16 D I/O or A In Port 1.2. See Section 13 for a complete description. P1.3 23 19 15 D I/O or A In Port 1.3. See Section 13 for a complete description. P1.4 22 18 14 D I/O or A In Port 1.4. See Section 13 for a complete description. |
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