Details

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BUY 16F872-I/SP https://www.utsource.net/itm/p/12591281.html

Parameter	Description	Value
Part Number	Microcontroller	16F872-I/SP
Package Type	Surface Mount Package	SOIC-18
Operating Voltage	Supply Voltage Range	2.0V to 5.5V
Clock Speed	Maximum Clock Frequency	20 MHz
Program Memory	Flash Program Memory Size	2K x 14 bits
Data Memory	RAM Data Memory Size	256 x 8 bits
EEPROM	EEPROM Data Memory Size	128 x 8 bits
I/O Pins	Number of I/O Pins	13
Timers	Number of Timers	2 (8-bit Timer0, 16-bit Timer1)
Analog-to-Digital	ADC Channels	10-bit, 8 channels
Interrupts	Number of Interrupt Sources	Multiple
Watchdog Timer	Watchdog Timer	Yes
Power Management	Low-Power Sleep Mode	Yes
Brown-Out Reset	Brown-Out Reset	Yes
Operating Temperature	Operating Temperature Range	-40°C to +85°C
Programming Interface	In-Circuit Serial Programming (ICSP)	Yes

Instructions for Use

1. Power Supply:

   • Connect VDD (Pin 18) to the positive supply voltage (2.0V to 5.5V).
   • Connect VSS (Pin 8) to ground.

2. Clock Configuration:

   • Use an external crystal or resonator for clocking by connecting it between OSC1 (Pin 13) and OSC2 (Pin 14).
   • Alternatively, use the internal oscillator by configuring the appropriate configuration bits.

3. Reset Pin:

   • MCLR (Pin 4) can be used as a reset input. Pull it high to enable normal operation. A low signal on this pin will reset the microcontroller.

4. I/O Configuration:

   • Configure the I/O pins (RA0 to RA5, RB0 to RB7) as inputs or outputs using the TRISA and TRISB registers.
   • Use the PORTA and PORTB registers to read from or write to the I/O pins.

5. Analog-to-Digital Converter (ADC):

   • Enable the ADC module and select the channel using the ADCON0 and ADCON1 registers.
   • Start a conversion and read the result from the ADRESH and ADRESL registers.

6. Timers:

   • Configure Timer0 and Timer1 using the T0CON and T1CON registers.
   • Set up the prescaler and enable interrupts if needed.

7. Interrupts:

   • Enable global interrupts by setting the GIE bit in the INTCON register.
   • Enable specific interrupt sources by setting the corresponding bits in the INTCON and other relevant registers.

8. Watchdog Timer:

   • Enable the watchdog timer by setting the WDTE bit in the configuration word.
   • Clear the watchdog timer periodically to prevent a reset.

9. Low-Power Sleep Mode:

   • Enter sleep mode by setting the SLEEP bit in the SLEEP instruction.
   • Wake up from sleep mode using an interrupt or a reset.

10. Programming:

    • Use an ICSP programmer to program the microcontroller in-circuit.
    • Ensure the programming voltage (PGM) is applied to the PGM pin (Pin 17) during programming.

For detailed information and specific register configurations, refer to the datasheet provided by Microchip Technology.

(For reference only)