PIC18F85J90T-I/PT

Product Overview

• Category: Microcontroller
• Use: Embedded systems, industrial automation, consumer electronics
• Characteristics: High-performance, low-power consumption, versatile
• Package: TQFP-44
• Essence: Advanced microcontroller with integrated peripherals
• Packaging/Quantity: Tape and reel, 250 units per reel

Specifications

• Architecture: 8-bit
• CPU Speed: Up to 40 MHz
• Program Memory Size: 64 KB
• RAM Size: 3.8 KB
• Data EEPROM Size: 256 bytes
• Operating Voltage Range: 2.0V to 5.5V
• Digital I/O Pins: 36
• Analog Input Channels: 12
• Timers: 4
• Communication Interfaces: UART, SPI, I2C
• ADC Resolution: 10-bit
• Temperature Range: -40°C to +125°C

Pin Configuration

The PIC18F85J90T-I/PT microcontroller has a total of 44 pins. The pin configuration is as follows:

1. VDD - Power supply voltage
2. VSS - Ground
3. RA0 - General-purpose I/O pin
4. RA1 - General-purpose I/O pin
5. RA2 - General-purpose I/O pin
6. RA3 - General-purpose I/O pin
7. RA4 - General-purpose I/O pin
8. RA5 - General-purpose I/O pin
9. MCLR - Master Clear input
10. RC0 - General-purpose I/O pin
11. RC1 - General-purpose I/O pin
12. RC2 - General-purpose I/O pin
13. RC3 - General-purpose I/O pin
14. RC4 - General-purpose I/O pin
15. RC5 - General-purpose I/O pin
16. RC6 - General-purpose I/O pin
17. RC7 - General-purpose I/O pin
18. VCAP - External capacitor connection for internal voltage regulator
19. OSC1 - Oscillator input
20. OSC2 - Oscillator output
21. RB0 - General-purpose I/O pin
22. RB1 - General-purpose I/O pin
23. RB2 - General-purpose I/O pin
24. RB3 - General-purpose I/O pin
25. RB4 - General-purpose I/O pin
26. RB5 - General-purpose I/O pin
27. RB6 - General-purpose I/O pin
28. RB7 - General-purpose I/O pin
29. RB8 - General-purpose I/O pin
30. RB9 - General-purpose I/O pin
31. RB10 - General-purpose I/O pin
32. RB11 - General-purpose I/O pin
33. RB12 - General-purpose I/O pin
34. RB13 - General-purpose I/O pin
35. RB14 - General-purpose I/O pin
36. RB15 - General-purpose I/O pin
37. AVDD - Analog power supply voltage
38. AVSS - Analog ground
39. AN0 - Analog input channel
40. AN1 - Analog input channel
41. AN2 - Analog input channel
42. AN3 - Analog input channel
43. AN4 - Analog input channel
44. AN5 - Analog input channel

Functional Features

• High-performance 8-bit microcontroller with advanced RISC architecture
• Integrated peripherals such as UART, SPI, and I2C for communication
• 10-bit ADC for accurate analog measurements
• Multiple timers for precise timing control
• Low-power consumption for energy-efficient applications
• Wide operating voltage range for flexibility in different power supply scenarios

Advantages and Disadvantages

Advantages: - High-performance capabilities - Versatile with integrated peripherals - Low-power consumption for energy efficiency - Wide operating voltage range for flexibility

Disadvantages: - Limited program memory size (64 KB) - Limited RAM size (3.8 KB)

Working Principles

The PIC18F85J90T-I/PT microcontroller operates based on an 8-bit RISC architecture. It executes instructions stored in its program memory to perform various tasks. The integrated peripherals, such as UART, SPI, and I2C, enable communication with other devices. The ADC allows accurate analog measurements, while the timers provide precise timing control. The microcontroller operates within a specified voltage range and consumes low power to optimize energy usage.

Detailed Application Field Plans

The PIC18F85J90T-I/PT microcontroller finds applications in various fields, including:

1. Embedded Systems: Used in embedded systems for controlling and monitoring devices in industrial automation, home automation, and automotive applications.
2. Industrial Automation: Employed in industrial automation systems for process control, motor control, and data acquisition.
3. Consumer Electronics