PIC12F635-EP Datasheet

8/14-Pin Flash-Based, 8-Bit CMOS Microcontrollers with nanoWatt Technology



This document contains device specific information for the PIC12F635/PIC16F636/639 devices.
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%, typical
    - Software selectable frequency range of
        8 MHz to 125 kHz
    - Software tunable
    - Two-Speed Start-up mode
    - Crystal fail detect for critical applications
    - Clock mode switching during operation for
    power savings
• 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 (PLVD)
• Power-up Timer (PWRT) and Oscillator Start-up
    Timer (OST)
• Brown-out Reset (BOR) with software control
• Enhanced Low-Current Watchdog Timer (WDT)
    with on-chip oscillator (software selectable
    nominal 268 seconds with full prescaler) with
    software enable
• Multiplexed Master Clear with pull-up/input pin
• Programmable code protection (program and
    data independent)
• High-Endurance Flash/EEPROM cell:
    - 100,000 write Flash endurance
    - 1,000,000 write EEPROM endurance
    - Flash/Data EEPROM Retention: > 40 years
Low-Power Features:
• Standby Current:
    - 1 nA @ 2.0V, typical
• Operating Current:
    - 8.5 μA @ 32 kHz, 2.0V, typical
    - 100 μA @ 1 MHz, 2.0V, typical
• Watchdog Timer Current:
    - 1 μA @ 2.0V, typical (Continue ...)



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