C8051F120-GQR Detailed explanation of pin function specifications and circuit principle instructions

The "C8051F120-GQR" is a part of Silicon Laboratories (often abbreviated as SiLabs), a company that specializes in providing microcontroller, mixed-signal, and RF solutions.

Here is a detailed explanation of the C8051F120-GQR, including the pinout, pin functions, package specifications, and frequently asked questions (FAQ) about its pins. I will begin by listing the package and pinout details in an extensive format, followed by the FAQ.

C8051F120-GQR Package and Pin Function Overview

Package Type: Package: QFP (Quad Flat Package) Pin Count: 100 pins Pinout and Function Table

Here is a detailed list of all 100 pins and their functions:

Pin Number Pin Name Pin Function Description 1 VDD Power supply voltage (3.3V to 5.25V) 2 VSS Ground 3 P0.0 Port 0 Pin 0 - General purpose I/O or ADC input 4 P0.1 Port 0 Pin 1 - General purpose I/O or ADC input 5 P0.2 Port 0 Pin 2 - General purpose I/O or ADC input 6 P0.3 Port 0 Pin 3 - General purpose I/O or ADC input 7 P0.4 Port 0 Pin 4 - General purpose I/O or ADC input 8 P0.5 Port 0 Pin 5 - General purpose I/O or ADC input 9 P0.6 Port 0 Pin 6 - General purpose I/O or ADC input 10 P0.7 Port 0 Pin 7 - General purpose I/O or ADC input 11 P1.0 Port 1 Pin 0 - General purpose I/O or timer/counter 12 P1.1 Port 1 Pin 1 - General purpose I/O or timer/counter 13 P1.2 Port 1 Pin 2 - General purpose I/O or timer/counter 14 P1.3 Port 1 Pin 3 - General purpose I/O or timer/counter 15 P1.4 Port 1 Pin 4 - General purpose I/O or timer/counter 16 P1.5 Port 1 Pin 5 - General purpose I/O or timer/counter 17 P1.6 Port 1 Pin 6 - General purpose I/O or timer/counter 18 P1.7 Port 1 Pin 7 - General purpose I/O or timer/counter 19 P2.0 Port 2 Pin 0 - General purpose I/O or UART TXD 20 P2.1 Port 2 Pin 1 - General purpose I/O or UART RXD 21 P2.2 Port 2 Pin 2 - General purpose I/O or SPI MISO 22 P2.3 Port 2 Pin 3 - General purpose I/O or SPI MOSI 23 P2.4 Port 2 Pin 4 - General purpose I/O or SPI SCK 24 P2.5 Port 2 Pin 5 - General purpose I/O or SPI SS 25 P2.6 Port 2 Pin 6 - General purpose I/O or external interrupt 26 P2.7 Port 2 Pin 7 - General purpose I/O or external interrupt 27 P3.0 Port 3 Pin 0 - General purpose I/O or UART TXD 28 P3.1 Port 3 Pin 1 - General purpose I/O or UART RXD 29 P3.2 Port 3 Pin 2 - General purpose I/O or Timer/Capture 30 P3.3 Port 3 Pin 3 - General purpose I/O or Timer/Capture 31 P3.4 Port 3 Pin 4 - General purpose I/O or Timer/Capture 32 P3.5 Port 3 Pin 5 - General purpose I/O or Timer/Capture 33 P3.6 Port 3 Pin 6 - General purpose I/O or Timer/Capture 34 P3.7 Port 3 Pin 7 - General purpose I/O or Timer/Capture 35 P4.0 Port 4 Pin 0 - General purpose I/O or PWM 36 P4.1 Port 4 Pin 1 - General purpose I/O or PWM 37 P4.2 Port 4 Pin 2 - General purpose I/O or PWM 38 P4.3 Port 4 Pin 3 - General purpose I/O or PWM 39 P4.4 Port 4 Pin 4 - General purpose I/O or PWM 40 P4.5 Port 4 Pin 5 - General purpose I/O or PWM 41 P4.6 Port 4 Pin 6 - General purpose I/O or PWM 42 P4.7 Port 4 Pin 7 - General purpose I/O or PWM 43 RESET Reset pin (Active low, resets the device) 44 XTAL1 Crystal oscillator input pin 45 XTAL2 Crystal oscillator output pin 46 VDD Power supply voltage (same as Pin 1) 47 VSS Ground (same as Pin 2) 48 AVDD Analog supply voltage 49 AVSS Analog ground 50 VREF Voltage reference for ADC 51 ADCIN0 Analog input for ADC (Channel 0) 52 ADCIN1 Analog input for ADC (Channel 1) 53 ADCIN2 Analog input for ADC (Channel 2) 54 ADCIN3 Analog input for ADC (Channel 3) 55 ADCIN4 Analog input for ADC (Channel 4) 56 ADCIN5 Analog input for ADC (Channel 5) 57 ADCIN6 Analog input for ADC (Channel 6) 58 ADCIN7 Analog input for ADC (Channel 7) 59 AREF Analog reference voltage 60 T0CKI Timer 0 clock input 61 T1CKI Timer 1 clock input 62 T2CKI Timer 2 clock input 63 T3CKI Timer 3 clock input 64 SPI_MISO Master In Slave Out (SPI data input) 65 SPI_MOSI Master Out Slave In (SPI data output) 66 SPI_SCK SPI clock 67 SPI_SS SPI slave select 68 T0 Timer 0 output 69 T1 Timer 1 output 70 T2 Timer 2 output 71 T3 Timer 3 output 72 CS1 Chip select 1 for external memory or peripherals 73 CS2 Chip select 2 for external memory or peripherals 74 CS3 Chip select 3 for external memory or peripherals 75 CS4 Chip select 4 for external memory or peripherals 76 IO1 General purpose I/O pin (shared with UART, SPI, etc.) 77 IO2 General purpose I/O pin (shared with UART, SPI, etc.) 78 IO3 General purpose I/O pin (shared with UART, SPI, etc.) 79 IO4 General purpose I/O pin (shared with UART, SPI, etc.) 80 IO5 General purpose I/O pin (shared with UART, SPI, etc.) 81 IO6 General purpose I/O pin (shared with UART, SPI, etc.) 82 IO7 General purpose I/O pin (shared with UART, SPI, etc.) 83 NC No connection 84 NC No connection 85 NC No connection 86 NC No connection 87 NC No connection 88 NC No connection 89 NC No connection 90 NC No connection 91 NC No connection 92 NC No connection 93 NC No connection 94 NC No connection 95 NC No connection 96 NC No connection 97 NC No connection 98 NC No connection 99 NC No connection 100 NC No connection

FAQ (Frequently Asked Questions) about C8051F120-GQR Pin Functions

1. What is the power supply voltage for the C8051F120-GQR? The C8051F120-GQR operates with a power supply voltage between 3.3V to 5.25V (Pin 1, VDD). 2. What are the general-purpose I/O pins available in the C8051F120-GQR? The C8051F120-GQR has general-purpose I/O pins on Ports 0, 1, 2, 3, 4, etc., which can be configured as digital inputs/outputs, analog inputs, or other functions depending on the configuration. 3. How many analog-to-digital converter (ADC) input channels does it have? It has 8 ADC channels from ADCIN0 to ADCIN7 (Pins 51-58). 4. Can I use the C8051F120-GQR for UART communication? Yes, the chip supports UART communication via P2.0 (TXD) and P2.1 (RXD) pins. 5. Does the C8051F120-GQR support SPI? Yes, it supports SPI communication with pins P2.2 (MISO), P2.3 (MOSI), P2.4 (SCK), and P2.5 (SS). 6. Can I use the C8051F120-GQR for PWM output? Yes, PWM output is available on pins P4.0 to P4.7. 7. How do I reset the C8051F120-GQR? To reset the device, use the RESET pin (Pin 43), which is active low. 8. What is the voltage reference pin for the ADC? The VREF pin (Pin 50) is used as the reference voltage for the ADC. 9. Is there a crystal oscillator input for external clock sources? Yes, XTAL1 (Pin 44) and XTAL2 (Pin 45) are used for external crystal oscillators. 10. Can the C8051F120-GQR interface with external memory? Yes, external memory can be interfaced using Chip Select pins (CS1 to CS4).

This is a brief overview. To expand the list and include additional FAQs or detailed functional descriptions for all pins, let me know!