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Microchip
PIC16F819- 8 bit Microcontroller with 2k Bytes Flash Program Memory and USART
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Photograph
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Features
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 Special Microcontroller Features
 - 100,000 erase/write cycles Enhanced Flash program memory typical
- 1,000,000 typical erase/write cycles EEPROM data memory typical
- Low-Voltage Programming
- In-circuit Serial Programming via two pins
- In-Circuit Debugging via two pins
- Processor read/write access to program memory
Low-Power Features
- Primary Run: XT, RC Oscillator, 87 µA, 1 MHz, 2V
- Timer1 Oscillator: 1.8 µA, 32kHz, 2V
- Watchdog Timer: 0.7 µA, 2V
- Industrial: 2.0V to 5.5V
Peripheral Features
- 10-bit, 5-channel Analog-to-Digital Converter
- Synchronous Serial Port (SSP) with SPI and I²C
- 16 I/O pins with individual direction control
- Two 8-bit timer/counter (TMR0, TMR2)with 8-bit prescaler
- One 16-bit timer/counter with prescaler
Oscillators
- Three Crysal modes: LP, XT, HS (up to 20 MHz)
- Two External RC modes
- ECIO (up to 20 MHz)
- 8 user-selectable frequencies
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Pin Description
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| Pin Number |
Description |
| 1 |
RA2/AN2/VREF |
| 2 |
RA3/AN3/VREF+ |
| 3 |
RA4/AN4/T0CKI |
| 4 |
RA5/MCLR/VPP |
| 5 |
Vss |
| 6 |
RB0/INT |
| 7 |
RB1/SDI/SDA |
| 8 |
RB2/SDO/CCP1 |
| 9 |
RB3/CCP1/PGM |
| 10 |
RB4/SCK/SCL |
| 11 |
RB5/SS |
| 12 |
RB6/T1OSO/T1CKI/PGC |
| 13 |
RB7/T1OSI/PGD |
| 14 |
VDD |
| 15 |
RA6/OSC2/CLKO |
| 16 |
RA7/OSC1/CLKI |
| 17 |
RA0/AN0 |
| 18 |
RA1/AN1 |
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Pin Layout
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Dimensional Drawing
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Technical Data
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Data Sheet
| Microchip - Data Sheet for PIC16F819 |
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Application Notes
| Microchip - PIC Application Notes |
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Integrated Circuits