28/40/44-Pin Flash MCU with 10-Bit A/D and nanoWatt Technology

Power-Managed Modes:

• Run: CPU on, peripherals on
  
• Idle: CPU off, peripherals on
  
• Sleep: CPU off, peripherals off
  
• Idle mode currents down to 1.0 μA, typical
  
• Sleep mode current down to 0.1 μA, typical
  
• Timer1 Oscillator: 1.0 μA, 32 kHz, 1.8V, typical
  
• Watchdog Timer: 2.0 μA, 1.8V, typical
  
• Two-Speed Oscillator Start-up
  

Peripheral Highlights:

• High-current sink/source 25 mA/25 mA
  
• Three programmable external interrupts
  
• Four independent input-change interrupts
  
• 8 independent weak pull-ups
  
• Programmable slew rate
  
• Capture/Compare/PWM (CCP) module
  
• Enhanced Capture/Compare/PWM (ECCP) module:
  - One, two or four PWM outputs
  - Selectable polarity
  - Programmable dead time
  - Auto-Shutdown and Auto-Restart
  
• Master Synchronous Serial Port (MSSP) module supporting 3-wire SPI (all 4 modes) and I2C™
  Master and Slave modes with address mask
  
• Enhanced Addressable USART module:
  - Supports RS-485, RS-232 and LIN 2.0
  - RS-232 operation using internal oscillator block (no external crystal required)
  - Auto-Wake-up on Break
  - Auto-Baud Detect
  
• 10-bit, up to 14-channel Analog-to-Digital
  

Converter module (ADC):

- Auto-acquisition capability
- Conversion available during Sleep
- Internal 1.2V Fixed Voltage Reference (FVR)
channel
- Independent input multiplexing

• Dual analog comparators
  - Rail-to-rail operation
  - Independent input multiplexing
  
• Programmable On-Chip Voltage Reference (CVREF) module (% of VDD) Flexible Oscillator Structure:
  
• Four Crystal modes, up to 64 MHz
  
• 4X Phase Lock Loop (available for crystal and
  internal oscillators)
  
• Two External RC modes, up to 4 MHz
  
• Two External Clock modes, up to 64 MHz
  
• Internal oscillator block:
  - 8 user selectable frequencies, from 31 kHz to 16 MHz
  - Provides a complete range of clock speeds from 31 kHz to 64 MHz when used with PLL
  - User tunable to compensate for frequency drift
  
• Secondary oscillator using Timer1 @ 32 kHz
  
• Fail-Safe Clock Monitor:
  - Allows for safe shutdown if primary or secondary oscillator stops
  

Special Microcontroller Features:

• C compiler optimized architecture:
  - Optional extended instruction set designed to
  optimize re-entrant code
  
• Self-programmable under software control
  
• Priority levels for interrupts
  
• 8 x 8 Single-Cycle Hardware Multiplier
  
• 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
  
• Operating voltage range: 1.8V to 3.6V
  
• Programmable 16-level High/Low-Voltage
  Detection (HLVD) module:
  - Supports interrupt on High/Low-Voltage
  Detection
  
• Programmable Brown-out Reset (BOR)
  - With software enable option