MICROCHIP PIC18F4331-I/P

28/40/44-Pin Enhanced Flash Microcontrollers with nanoWatt Technology, High-Performance PWM and A/D

• Up to 4 Channels with Complementary Outputs
• Edge or Center-Aligned Operation
• Flexible Dead-Band Generator
• Hardware Fault Protection Inputs
• Simultaneous Update of Duty Cycle and Period
• Flexible Special Event Trigger output
• Three Independent Input Capture Channels
• Flexible operating modes for period and pulse-width measurement
• Special Hall sensor interface module
• Special Event Trigger output to other modules
• Quadrature Encoder Interface
• 2-phase inputs and one index input from encoder
• High and low position tracking with direction status and change of direction interrupt
• Velocity measurement
• Up to 9 Channels
• Simultaneous, Two-Channel Sampling
• Sequential Sampling: 1, 2 or 4 Selected Channels
• Auto-Conversion Capability
• 4-Word FIFO with Selectable Interrupt Frequency
• Selectable External Conversion Triggers
• Programmable Acquisition Time
• Four Crystal modes up to 40 MHz
• Two External Clock modes up to 40 MHz
• 8 user-selectable frequencies: 31 kHz to 8 MHz
• OSCTUNE can compensate for frequency drift
• Secondary Oscillator using Timer1 @32 kHz
• Fail-Safe Clock Monitor
• Allows for safe shutdown of device if clock fails
• Run: CPU on, Peripherals on
• Idle: CPU off, Peripherals on
• Sleep: CPU off, Peripherals off