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PIC16F631/677/685/687/689/690
20-Pin Flash-Based, 8-Bit CMOS Microcontrollers
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 32 kHz - Software tunable - Two-Speed Start-up mode - Crystal fail detect for critical applications - Clock mode switching during operation for power savings
• Power-Saving Sleep mode • Wide Operating Voltage Range (2.0V-5.
PIC16F631 Datasheet
