PIC16F1946 Datasheet PDF - Microchip Technology

High-Performance RISC CPU:
• Only 49 Instructions to Learn
• Operating Speed:
   - DC – 32 MHz clock input
   - DC – 125 ns instruction cycle
• Interrupt Capability with Automatic Context Saving
• 16-Level Deep Hardware Stack with Optional Overflow/Underflow Reset
• Direct, Indirect and Relative Addressing modes:
   - Two full 16-bit File Select Registers (FSRs)
   - FSRs can read program and data memory

Special Microcontroller Features:
• Precision Internal Oscillator:
   - Factory calibrated to ±1%, typical
   - Software selectable frequency range from 32 MHz to 31 kHz
• 31 kHz Low-Power Internal Oscillator
• External Oscillator Block with:
   - 4 crystal/resonator modes up to 32 MHz
   - 3 external clock modes up to 32 MHz
• 4x Phase Locked Loop (PLL)
• Fail-Safe Clock Monitor
• Two-Speed Start-up
• Power-Saving Sleep mode
• Power-on Reset (POR)
• Power-up Timer (PWRT)
• Oscillator Start-up Timer (OST)
• Brown-out Reset (BOR) with Selectable Trip Point
• Extended Watch-Dog Timer (WDT)
• In-Circuit Serial Programming™ (ICSP™) via two pins
• In-Circuit Debug (ICD) via Two Pins
• Enhanced Low-Voltage Programming (LVP)
• Operating Voltage Range:
   - 1.8V to 3.6V (PIC16LF194X)
   - 1.8V to 5.5V (PIC16F194X)
• Programmable Code Protection
• Self-Programmable under Software Control

Low-Power Features:
• Standby Current (PIC16LF194X):
   - 100 nA @ 1.8V, typical
• Operating Current (PIC16LF194X):
   - 150 μA @ 1 MHz, 1.8V, typical
• Low-Power Watchdog Timer Current (PIC16LF194X):
   - 1.0 μA @ 1.8V, typical
  
Peripheral Features:
• Integrated LCD Controller:
   - Up to 184 segments
   - Variable clock input
   - Contrast control
   - Internal voltage reference selections
• Up to 53 I/O Pins and 1 Input-only Pin:
   - High current sink/source for LED drivers
   - Individually programmable interrupt-on change pins
   - Individually programmable weak pull-ups
• Timer0: 8-Bit Timer/Counter with 8-Bit Programmable Prescaler
• Enhanced Timer1:
   - 16-bit timer/counter with prescaler
   - External Gate Input mode
   - Dedicated low-power 32 kHz oscillator driver
• Timer2, 4, 6: 8-Bit Timer/Counter with 8-Bit Period Register, Prescaler and Postscaler
• Two Capture/Compare/PWM modules (CCP):
   - Software selectable time bases
• Three Enhanced Capture, Compare, PWM modules (ECCP):
   - Software selectable time bases
   - Auto-shutdown and auto-restart
   - PWM steering
• Two Master Synchronous Serial Ports (MSSP) with SPI and I2CTM with:
   - 7-bit address masking
   - SMBus/PMBusTM compatibility
• Two Enhanced Universal Synchronous Asynchronous Receiver Transmitters (EUSART):
   - RS-232, RS-485 and LIN compatible
   - Auto-Baud Detect
   - Auto-wake-up on start
• SR Latch (Integrated 555 Timer):
   - Multiple Set/Reset input options
• Analog-to-Digital Converter (ADC):
   - 10-bit resolution
   - Up to 17 channels
• 3 Comparators:
   - Rail-to-rail inputs/outputs
   - Power mode control
   - Software controllable hysteresis
• Voltage Reference 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
• mTouch™ Oscillator Module
   - 17 channels for button, sensor, or slider input