PIC18F87K90-I-PT Detailed explanation of pin function specifications and circuit principle instructions

The " PIC18F87K90-I/PT " belongs to Microchip Technology. It's part of the PIC18 series, specifically a microcontroller family designed for embedded systems. Here's an overview of the required specifications based on your request:

Package Type and Pin Count

The PIC18F87K90-I/PT is a 64-pin package with a TQFP (Thin Quad Flat Package) form factor. While the detailed functionality of each pin is quite extensive, I will provide you with a summary of the pinout for clarity, followed by an in-depth explanation of each pin.

Pinout and Function List

Pin No. Pin Name Function/Description 1 RA0/AN0 Analog input for channel 0, General-purpose I/O pin. 2 RA1/AN1 Analog input for channel 1, General-purpose I/O pin. 3 RA2/AN2 Analog input for channel 2, General-purpose I/O pin. 4 RA3/AN3 Analog input for channel 3, General-purpose I/O pin. 5 RA4/T0CKI General-purpose I/O pin or Timer 0 clock input. 6 RA5/AN4 Analog input for channel 4, General-purpose I/O pin. 7 VSS Ground pin. 8 VDD Supply voltage pin (typically 5V). 9 RC0/T1OSO General-purpose I/O pin or Timer 1 output. 10 RC1/T1OSI General-purpose I/O pin or Timer 1 input. 11 RC2/CCP1 General-purpose I/O pin or Capture/Compare/PWM function. 12 RC3/CCP2 General-purpose I/O pin or Capture/Compare/PWM function. 13 RC4/SCK1 General-purpose I/O pin or SPI clock pin. 14 RC5/SDI1 General-purpose I/O pin or SPI data input pin. 15 RC6/SDO1 General-purpose I/O pin or SPI data output pin. 16 RC7/SDO1 General-purpose I/O pin or SPI data output pin. 17 RD0/AN12 Analog input for channel 12, General-purpose I/O pin. 18 RD1/AN13 Analog input for channel 13, General-purpose I/O pin. 19 RD2 General-purpose I/O pin. 20 RD3 General-purpose I/O pin. 21 RD4 General-purpose I/O pin. 22 RD5 General-purpose I/O pin. 23 RD6 General-purpose I/O pin. 24 RD7 General-purpose I/O pin. 25 RE0/AN8 Analog input for channel 8, General-purpose I/O pin. 26 RE1/AN9 Analog input for channel 9, General-purpose I/O pin. 27 RE2/AN10 Analog input for channel 10, General-purpose I/O pin. 28 RE3 General-purpose I/O pin. 29 RE4 General-purpose I/O pin. 30 RE5 General-purpose I/O pin. 31 RE6 General-purpose I/O pin. 32 RE7 General-purpose I/O pin. 33 RA0/AN0 Analog input for channel 0, General-purpose I/O pin. 34 RA1/AN1 Analog input for channel 1, General-purpose I/O pin. 35 RA2/AN2 Analog input for channel 2, General-purpose I/O pin. 36 RA3/AN3 Analog input for channel 3, General-purpose I/O pin. 37 RA4/T0CKI General-purpose I/O pin or Timer 0 clock input. 38 RA5/AN4 Analog input for channel 4, General-purpose I/O pin. 39 VSS Ground pin. 40 VDD Supply voltage pin (typically 5V). 41 RE0/AN8 Analog input for channel 8, General-purpose I/O pin. 42 RE1/AN9 Analog input for channel 9, General-purpose I/O pin. 43 RE2/AN10 Analog input for channel 10, General-purpose I/O pin. 44 RE3 General-purpose I/O pin. 45 RE4 General-purpose I/O pin. 46 RE5 General-purpose I/O pin. 47 RE6 General-purpose I/O pin. 48 RE7 General-purpose I/O pin. 49 RB0/INT0 General-purpose I/O pin or external interrupt 0. 50 RB1/INT1 General-purpose I/O pin or external interrupt 1. 51 RB2/INT2 General-purpose I/O pin or external interrupt 2. 52 RB3/CCP1 General-purpose I/O pin or Capture/Compare/PWM function. 53 RB4/CCP2 General-purpose I/O pin or Capture/Compare/PWM function. 54 RB5 General-purpose I/O pin. 55 RB6 General-purpose I/O pin. 56 RB7 General-purpose I/O pin. 57 VSS Ground pin. 58 VDD Supply voltage pin (typically 5V). 59 RF 0 General-purpose I/O pin. 60 RF1 General-purpose I/O pin. 61 RF2 General-purpose I/O pin. 62 RF3 General-purpose I/O pin. 63 RF4 General-purpose I/O pin. 64 RF5 General-purpose I/O pin. Note: This table lists pins, general functions, and only a few important pins as a summary. Each pin has additional functions depending on configuration settings, such as analog/digital mode, PWM, or serial communications.

Frequently Asked Questions (FAQ)

Q1: What is the primary application for the PIC18F87K90-I/PT microcontroller? A1: The PIC18F87K90-I/PT is commonly used in embedded applications, especially in areas requiring rich peripheral support, such as motor control, industrial equipment, and sensor interfacing.

Q2: How many pins are available on the PIC18F87K90-I/PT package? A2: The PIC18F87K90-I/PT comes in a 64-pin TQFP package.

Q3: What is the power supply range for the PIC18F87K90-I/PT? A3: The power supply range is from 4.0V to 5.5V, making it suitable for 5V systems.

Q4: Does the PIC18F87K90-I/PT support USB communication? A4: Yes, the PIC18F87K90-I/PT has built-in USB 2.0 support.

Q5: Can I use all the pins of the PIC18F87K90-I/PT for general-purpose I/O? A5: Not all pins are strictly general-purpose. Some pins have fixed functions like analog input or specific peripherals (SPI, I2C, PWM, etc.).

Q6: What is the maximum clock frequency of the PIC18F87K90-I/PT? A6: The PIC18F87K90-I/PT operates up to 64 MHz using an external clock source.

Q7: Does the PIC18F87K90-I/PT have built-in ADC functionality? A7: Yes, it includes a 10-bit ADC with up to 13 channels, making it suitable for various analog signal measurements.

Q8: How many timers are available in the PIC18F87K90-I/PT? A8: The PIC18F87K90-I/PT has multiple timers, including Timer 0, Timer 1, and Timer 2, for various timing functions.

Q9: Does the PIC18F87K90-I/PT support PWM? A9: Yes, the microcontroller supports PWM output through