Microchip | PIC18F44K20-I/P

Microchip provides solutions for the entire performance range of 8-bit, 16-bit, and 32-bit microcontrollers, with a powerful architecture, flexible memory technologies, comprehensive easy-to-use development tools, complete technical documentation and post design-in support through a global sales and distribution network. Microchip offers two 16-bit Microcontroller (MCU) families plus two 16-bit Digital Signal Controller (DSC) families that give you compatible options across a wide spectrum of price, performance and feature sets.

Features: 

• C Compiler Optimized Architecture
• 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 
• 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
• Operating Voltage Range: 1.8 V to 3.6 V
• Self-Programmable under Software Control
• Programmable 16-Level High/Low-Voltage Detection (HLVD) 
• Sleep mode: 100 nA
• Watchdog Timer: 500 nA
• Timer1 Oscillator: 500 nA @ 32 kHz
• Analog Features:
  • Analog-to-Digital Converter (ADC) module 
  • 10-bit resolution
  • 13 External Channels
• Auto-acquisition capability
• Conversion available during Sleep  
• Three programmable external interrupts
• Four programmable interrupt-on-change
• Eight programmable weak pull-ups
• 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