Analog Features:
• Analog-to-Digital Converter (ADC) module: - 10-bit resolution, up to 30 external channels - Auto-acquisition capability - Conversion available during Sleep - Fixed Voltage Reference (FVR) channel - Independent input multiplexing • Analog Comparator module: - Two rail-to-rail analog comparators - Independent input multiplexing • Digital-to-Analog Converter (DAC) module: - Fixed Voltage Reference (FVR) with 1.024V, 2.048V and 4.096V output levels - 5-bit rail-to-rail resistive DAC with positive and negative reference selection • Charge Time Measurement Unit (CTMU) module: - Supports capacitive touch sensing for touch screens and capacitive switches
eXtreme Low-Power Features (XLP) (PIC18(L)F2X/4XK22):
• Sleep mode: 20 nA, typical • Watchdog Timer: 300 nA, typical • Timer1 Oscillator: 800 nA @ 32 kHz • Peripheral Module Disable Special Microcontroller Features:
• 2.3V to 5.5V Operation – PIC18FXXK22 devices • 1.8V to 3.6V Operation – PIC18LFXXK22 devices • Self-Programmable under Software Control • High/Low-Voltage Detection (HLVD) module: - Programmable 16-Level - Interrupt on High/Low-Voltage Detection • Programmable Brown-out Reset (BOR): - With software enable option - Configurable shutdown in Sleep • Extended Watchdog Timer (WDT): - Programmable period from 4 ms to 131s • In-Circuit Serial Programming™ (ICSP™): - Single-Supply 3V • In-Circuit Debug (ICD) Peripheral Highlights:
• Up to 35 I/O Pins plus 1 Input-Only Pin: - High-Current Sink/Source 25 mA/25 mA - Three programmable external interrupts - Four programmable interrupt-on-change - Nine programmable weak pull-ups - Programmable slew rate • SR Latch: - Multiple Set/Reset input options • Two Capture/Compare/PWM (CCP) modules • Three Enhanced CCP (ECCP) modules: - One, two or four PWM outputs - Selectable polarity - Programmable dead time - Auto-Shutdown and Auto-Restart - PWM steering • Two Master Synchronous Serial Port (MSSP) modules: - 3-wire SPI (supports all 4 modes) -I 2C Master and Slave modes with address mask
