PIC16F648A-I/P Flash-Based, 8-Bit CMOS Microcontrollers with nanoWatt Technology electronic chip board

18-pin Flash-Based, 8-Bit CMOS Microcontrollers with nanoWatt Technology

High-Performance RISC CPU:

• Operating speeds from DC – 20 MHz

• Interrupt capability

• 8-level deep hardware stack

• Direct, Indirect and Relative Addressing modes

• 35 single-word instructions: - All instructions single cycle except branches

Special Microcontroller Features:

 • Internal and external oscillator options:

- Precision internal 4 MHz oscillator factory calibrated to ±1%

- Low-power internal 48 kHz oscillator

- External Oscillator support for crystals and resonators

• Power-saving Sleep mode

• Programmable weak pull-ups on PORTB

• Multiplexed Master Clear/Input-pin

• Watchdog Timer with independent oscillator for reliable operation

• Low-voltage programming

• In-Circuit Serial Programming™ (via two pins)

MODIFIED COMPARATOR OUTPUT BLOCK DIAGRAM

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