PIC18F45K20 - Microcontroller Microchip - Free user manual and instructions
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| Product Type | 8-bit Microcontroller |
| Manufacturer | Microchip Technology |
| Model | PIC18F45K20 |
| Architecture | PIC18 (8-bit) |
| CPU Speed | Up to 64 MHz (internal oscillator) |
| Program Memory | 32 KB Flash |
| Data Memory (RAM) | 1.5 KB |
| EEPROM | 256 bytes |
| Digital I/O Pins | 36 (on 40-pin package) |
| Timer Modules | 4 (8/16-bit) |
| ADC Channels | 12 channels, 10-bit resolution |
| Serial Communication | SPI, I²C, USART (EUSART) |
| Operating Voltage | 2.0 V to 5.5 V |
| Temperature Range | -40°C to +85°C |
| Package Type | 40-pin PDIP, QFN, or TQFP |
| Dimensions (PDIP) | 52.45 mm x 13.97 mm |
| Weight (typical) | Approx. 5.8 g (PDIP) |
| Power Consumption | 0.2 mA typical at 1 MHz, 3V |
| Debug/Programming | ICSP (In-Circuit Serial Programming) |
| Oscillator Options | Internal (31 kHz, 8 MHz, 64 MHz), external crystal/resonator |
| Care Instructions | Handle with ESD precautions; store in anti-static bag; avoid exposure to moisture |
Frequently Asked Questions - PIC18F45K20 Microchip
What is the maximum clock frequency of the PIC18F45K20?
The PIC18F45K20 can operate at up to 64 MHz using the internal oscillator or an external source.
How much program memory does the PIC18F45K20 have?
It features 32 KB of Flash program memory.
What is the operating voltage range?
The microcontroller works from 2.0 V to 5.5 V.
Does the PIC18F45K20 have an ADC?
Yes, it includes a 10-bit ADC with 12 channels.
What serial communication interfaces are supported?
It supports SPI, I²C, and USART (EUSART).
How many I/O pins are available?
The device provides 36 digital I/O pins on the 40-pin package.
What is the temperature range for operation?
The recommended operating temperature range is -40°C to +85°C.
Can I program the PIC18F45K20 without a dedicated programmer?
Programming requires an ICSP (In-Circuit Serial Programming) tool, such as the PICKit™ or ICD series.
What is the difference between PIC18F45K20 and PIC18F46K20?
The PIC18F46K20 has 36 I/O pins (vs. 36 on the 45K20) but comes in a 44-pin TQFP package and includes an additional 8-bit timer and enhanced features.
How do I reduce power consumption for battery applications?
Use sleep mode, disable unused peripherals, and select the internal oscillator at a lower frequency (e.g., 31 kHz).
User questions about PIC18F45K20 Microchip
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USER MANUAL PIC18F45K20 Microchip
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Product information
Brand : Microchip
Model : PIC18F45K20
Category : Microcontroller