Devices Included In This Data Sheet:

• PIC12F508

• PIC12F509

• PIC16F505

High-Performance RISC CPU:

• Only 33 single-word instructions to learn

• All single-cycle instructions except for program 

branches, which are two-cycle

• 12-bit wide instructions

• 2-level deep hardware stack

• Direct, Indirect and Relative Addressing modes 

for data and instructions

• 8-bit wide data path

• 8 Special Function Hardware registers

• Operating speed: 

- DC – 20 MHz clock input (PIC16F505 only)

- DC – 200 ns instruction cycle (PIC16F505 

only)

- DC – 4 MHz clock input

- DC – 1000 ns instruction cycle 

Special Microcontroller Features:

• 4 MHz precision internal oscillator:

- Factory calibrated to ±1%

• In-Circuit Serial Programming™ (ICSP™)

• In-Circuit Debugging (ICD) support

• Power-on Reset (POR)

• Device Reset Timer (DRT)

• Watchdog Timer (WDT) with dedicated on-chip 

RC oscillator for reliable operation

• Programmable code protection

• Multiplexed MCLR input pin

• Internal weak pull-ups on I/O pins

• Power-saving Sleep mode

• Wake-up from Sleep on pin change

• Selectable oscillator options:

- INTRC: 4 MHz precision Internal oscillator

- EXTRC: External low-cost RC oscillator

- XT: Standard crystal/resonator

- HS: High-speed crystal/resonator

(PIC16F505 only)

- LP: Power-saving, low-frequency crystal

- EC: High-speed external clock input 

(PIC16F505 only)

Low-Power Features/CMOS Technology: 

• Operating Current:

- < 350 µA @ 2V, 4 MHz

• Standby Current:

- 100 nA @ 2V, typical

• Low-power, high-speed Flash technology:

- 100,000 Flash endurance 

- > 40 year retention

• Fully static design

• Wide operating voltage range: 2.0V to 5.5V

• Wide temperature range:

- Industrial: -40°C to +85°C

- Extended: -40°C to +125°C

Peripheral Features (PIC12F508/509):

• 6 I/O pins:

- 5 I/O pins with individual direction control

- 1 input only pin 

- High current sink/source for direct LED drive

- Wake-on-change

- Weak pull-ups

• 8-bit real-time clock/counter (TMR0) with 8-bit 

programmable prescaler

Peripheral Features (PIC16F505):

• 12 I/O pins:

- 11 I/O pins with individual direction control

- 1 input only pin

- High current sink/source for direct LED drive

- Wake-on-change

- Weak pull-ups

• 8-bit real-time clock/counter (TMR0) with 8-bit 

programmable prescaler

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