High-Performance RISC CPU:
• C Compiler Optimized Architecture
• Only 49 Instructions
• Up to 28 Kbytes Linear Program Memory Addressing
• Up to 1536 Bytes Linear Data Memory Addressing
• Operating Speed:
   - DC – 20 MHz clock input @ 2.5V
   - DC – 16 MHz clock input @ 1.8V
   - DC – 200 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

Flexible Oscillator Structure:
• 16 MHz Internal Oscillator Block:
   - Software selectable frequency range from 16 MHz to 31 kHz
• 31 kHz Low-Power Internal Oscillator
• External Oscillator Block with:
   - Four crystal/resonator modes up to 20 MHz
   - Three external clock modes up to 20 MHz
• Fail-Safe Clock Monitor
   - Allows for safe shutdown if peripheral clock stops
• Two-Speed Oscillator Start-up
• Oscillator Start-up Timer (OST)

Special Microcontroller Features:
• Operating Voltage Range:
   - 1.8V to 3.6V (PIC16LF1526/27)
   - 2.3V to 5.5V (PIC16F1526/27)
• Self-Programmable under Software Control
• Power-on Reset (POR)
• Power-up Timer (PWRT)
• Programmable Low-Power Brown-Out Reset (LPBOR)
• Extended Watch-Dog Timer (WDT):
   - Programmable period from 1ms to 256s
• Programmable Code Protection
• In-Circuit Serial Programming™ (ICSP™) via two pins
• In-Circuit Debug (ICD) via Two Pins
• Enhanced Low-Voltage Programming (LVP)
• Power-Saving Sleep mode

Extreme Low-Power Management
PIC16LF1526/27 with nanoWatt XLP:
• Sleep mode: 20 nA @ 1.8V, typical
• Watchdog Timer: 300 nA @ 1.8V, typical
• Secondary Oscillator: 600 nA @ 32 kHz, 1.8V, typical

Analog Features:
• Analog-to-Digital Converter (ADC):
   - 10-bit resolution
   - 30 external channels
   - Two internal channels
   - Fixed Voltage Reference (FVR) channel
   - Temperature Indicator channel
   - Auto acquisition capability
   - Conversion available during Sleep
   - Dedicated ADC RC oscillator
   - Fixed Voltage Reference (FVR) as ADC positive reference
• Voltage Reference module:
   - Fixed Voltage Reference (FVR) with 1.024V, 2.048V and 4.096V output levels
   - Low-Power Sleep mode
   - Low-Power BOR (LPBOR)

Peripheral Features:
• 53 I/O Pins and 1 Input-only Pin:
   - High current sink/source 25 mA/25 mA
   - Individually programmable weak pull-ups
   - Individually programmable interrupt-on-change (IOC) pins
• Timer0: 8-Bit Timer/Counter with 8-Bit Programmable Prescaler
• Enhanced Timer1, 3, 5:
   - 16-bit timer/counter with prescaler
   - External Gate Input mode
   - Low-power 32 kHz secondary oscillator driver
• Timer2, 4, 6, 8, 10: 8-Bit Timer/Counter with 8-Bit
  Period Register, Prescaler and Postscaler
• Ten Capture/Compare/PWM (CCP) modules:
   - 16-bit Capture, 200 ns (max. resolution)
   - 16-bit Compare, 200 ns (max. resolution)
   - 10-bit PWM, 20 kHz @ 10 bits (max. frequency)
• Two Master Synchronous Serial Ports (MSSPs) with SPI and I2CTM with:
   - 7-bit address masking
   - SMBus/PMBusTM compatibility
   - Auto-wake-up on start
• Two Enhanced Universal Synchronous
  Asynchronous Receiver Transmitters (EUSART):
    - RS-232, RS-485 and LIN compatible
    - Auto-Baud Detect