Description
This family offers the advantages of all PIC18 microcontrollers – namely, high computational performance at an economical price – with the addition of high-endurance, Flash program memory. On top of these features, the PIC18F23K20 family introduces design enhancements that make these microcontrollers a logical choice for many highperformance, power sensitive applications.
- C Compiler Optimized Architecture: – Optional extended instruction set designed to optimize re-entrant code
- Up to 1024 bytes Data EEPROM
- Up to 64 Kbytes Linear Program Memory Addressing
- Up to 3936 bytes Linear Data Memory Addressing
- Up to 16 MIPS Operation
- 16-bit Wide Instructions, 8-bit Wide Data Path
- Priority Levels for Interrupts
- 31-Level, Software Accessible Hardware Stack
- 8 x 8 Single-Cycle Hardware Multiplier Flexible Oscillator Structure:
- Precision 16 MHz Internal Oscillator Block: – Factory calibrated to ± 1% – Software selectable frequencies range of 31 kHz to 16 MHz – 64 MHz performance available using PLL – no external components required
- Four Crystal modes up to 64 MHz
- Two External Clock modes up to 64 MHz
- 4X Phase Lock Loop (PLL)
- Secondary Oscillator using Timer1 @ 32 kHz
- Fail-Safe Clock Monitor: – Allows for safe shutdown if peripheral clock stops – Two-Speed Oscillator Start-up Special Microcontroller Features:
- Operating Voltage Range: 1.8V to 3.6V
- Self-Programmable under Software Control
- Programmable 16-Level High/Low-Voltage Detection (HLVD) module: – Interrupt on High/Low-Voltage Detection
- Programmable Brown-out Reset (BOR): – With software enable option
- Extended Watchdog Timer (WDT): – Programmable period from 4 ms to 131s
- Single-Supply 3V In-Circuit Serial Programming™ (ICSP™) via Two Pins
- In-Circuit Debug (ICD) via Two Pins Extreme Low-Power Management with nanoWatt XLP:
- Sleep mode: < 100 nA @ 1.8V
- Watchdog Timer: < 800 nA @ 1.8V
- Timer1 Oscillator: < 800 nA @ 32 kHz and 1.8V Analog Features:
- Analog-to-Digital Converter (ADC) module: – 10-bit resolution, 13 External Channels – Auto-acquisition capability – Conversion available during Sleep – 1.2V Fixed Voltage Reference (FVR) channel – Independent input multiplexing
- Analog Comparator module: – Two rail-to-rail analog comparators – Independent input multiplexing
- Voltage Reference (CVREF) module – Programmable (% VDD), 16 steps – Two 16-level voltage ranges using VREF pins 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 – Eight programmable weak pull-ups – Programmable slew rate
- Capture/Compare/PWM (CCP) module
- Enhanced CCP (ECCP) module: – One, two or four PWM outputs – Selectable polarity – Programmable dead time – Auto-Shutdown and Auto-Restart
- Master Synchronous Serial Port (MSSP) module – 3-wire SPI (supports all 4 modes) – I2C™ Master and Slave modes with address mask
- Enhanced Universal Synchronous Asynchronous Receiver Transmitter (EUSART) module: – Supports RS-485, RS-232 and LIN – RS-232 operation using internal oscillator – Auto-Wake-up on Break – Auto-Baud Detect
