PIC18F27K42 - Microcontroller Microchip - Free user manual and instructions
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| Product Type | Microcontroller |
| Brand | Microchip |
| Model | PIC18F27K42 |
| Architecture | 8-bit |
| Package | 28-pin PDIP, SOIC, SSOP, TQFP |
| CPU Speed | Up to 64 MHz (16 MIPS) |
| Flash Memory | 128 KB |
| SRAM | 8 KB |
| EEPROM | 1 KB |
| Digital I/O Pins | 25 |
| Analog Inputs | 12-bit ADC, up to 12 channels |
| Communication Interfaces | 2x EUSART, 2x SPI, 2x I2C, 1x CAN (ECAN), 1x DMA |
| Timers | 5x 8-bit, 3x 16-bit |
| Operating Voltage | 2.3V to 5.5V |
| Temperature Range | -40°C to +85°C (Industrial) |
| Power Consumption | Low power (XLP technology), typical 0.5 µA sleep |
| Additional Features | CRC/SCAN, Configurable Logic Cells (CLC), Zero Cross Detect (ZCD) |
| Dimensions (TQFP) | 7 mm x 7 mm x 1.0 mm (typical) |
| Weight | Approx. 0.5 g (typical) |
| Maintenance | No special maintenance; avoid ESD, ensure proper soldering. |
| Cleaning | Isopropyl alcohol can be used for flux removal. |
| Safety | Standard ESD precautions; keep within voltage ratings. |
Frequently Asked Questions - PIC18F27K42 Microchip
How do I program the PIC18F27K42?
You can program it using an ICSP programmer (e.g., PICkit 4, ICD 4) via the ICSP pins (MCLR, VDD, VSS, PGD, PGC). MPLAB X IDE with XC8 compiler is recommended.
What development tools are supported?
MPLAB X IDE, MPLAB Code Configurator (MCC), and XC8 compiler. In-circuit debuggers like PICkit 4, ICD 4, and Curiosity HPC are compatible.
What is the maximum clock speed?
The internal oscillator can run up to 64 MHz (16 MIPS). An external clock up to 64 MHz is also supported.
How many ADC channels does it have?
It has a 12-bit ADC with up to 12 channels, plus a dedicated averaging circuit and computation features.
Does the PIC18F27K42 support CAN?
Yes, it has an ECAN module supporting CAN 2.0 A/B communication.
What is the operating voltage range?
The supply voltage range is 2.3V to 5.5V, allowing use in both 3.3V and 5V systems.
How can I reduce power consumption?
Use XLP technology sleep modes (SLEEP, IDLE), disable unused peripherals, reduce clock speed, and use low-power oscillators.
What package options are available?
Available in 28-pin PDIP, SOIC, SSOP, and TQFP packages. TQFP is surface-mount with 0.65 mm pitch.
Can I use the PIC18F27K42 with Arduino?
Not directly due to different architecture, but you can program it with MPLAB X or use a PIC-based Arduino-like board (e.g., Uno32) with adapter.
Where can I find the datasheet and documentation?
The official datasheet is available on Microchip's website. You can also download the user manual (40 pages) from the notice-facile.com page for this device.
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