PIC16F639-I/SS

The low pin-count (20) PIC Flash microcontroller products offer all of the advantages of the well recognized mid-range x14 architecture with standardized features including a wide operating voltage of 2.0...5.5 volts, on-board EEPROM data memory, and nanoWatt Technology. Standard analog peripherals include up to 12 channels of 10-bit A/D, an analog comparator module with two comparators, programmable on-chip voltage reference, and an enhanced Capture/Compare/PWM (ECCP+) w/dead band delay, auto-shutdown and restart options.

• High-Performance RISC CPU:
• Only 35 instructions to learn:
  • All single-cycle instructions except branches
• Operating speed:
  • DC – 20 MHz oscillator/clock input
  • DC – 200 ns instruction cycle
• Interrupt capability
• 8-level deep hardware stack
• Direct, Indirect and Relative Addressing modes Special Microcontroller Features:
• Precision Internal Oscillator:
  • Factory calibrated to ±1%
  • Software selectable frequency range of 8 MHz to 31 kHz
  • Software tunable
  • Two-Speed Start-up mode
  • Crystal fail detect for critical applications
• Clock mode switching for low power operation
• Power-saving Sleep mode
• Wide operating voltage range (2.0V-5.5V)
• Industrial and Extended Temperature range
• Power-on Reset (POR)
• Wake-up Reset (WUR)
• Independent weak pull-up/pull-down resistors
• Programmable Low-Voltage Detect (