Details

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BUY P80C31BH. https://www.utsource.net/itm/p/12611836.html

Parameter	Description	Value
Device Type	Microcontroller	8-bit CMOS
Package	Plastic Dual In-Line Package (PDIP)	40-pin
Operating Voltage (Vcc)	Supply Voltage Range	2.7 V to 6.0 V
Clock Frequency	Maximum Clock Frequency	20 MHz
Program Memory	Flash Memory Size	8 KB
Data Memory	RAM Size	256 bytes
EEPROM	On-Chip EEPROM	128 bytes
I/O Ports	Number of I/O Pins	32
Timer/Counters	Number of Timers	2 x 16-bit
Interrupts	Number of Interrupt Sources	14
Serial Communication	UART	1 channel
Watchdog Timer	Watchdog Timer	Yes
Power Consumption	Active Mode	2 mA (typical) at 3 V, 4 MHz
Low-Power Modes	Sleep Mode Current	1 渭A (typical)
Operating Temperature	Industrial Range	-40掳C to +85掳C
Programming Interface	In-System Programming (ISP)	Yes
Package Marking	Device Marking	P80C31BH

Instructions for Using the P80C31BH Microcontroller

1. Power Supply:

   • Connect the Vcc pin to the power supply within the range of 2.7 V to 6.0 V.
   • Connect the Vss pin to ground.

2. Clock Configuration:

   • Use an external crystal or oscillator connected to the XTAL1 and XTAL2 pins for clock generation.
   • Alternatively, use an internal RC oscillator for lower precision applications.

3. Reset:

   • Apply a high signal to the RESET pin for at least two machine cycles to initialize the microcontroller.
   • A reset circuit can be used to ensure proper initialization.

4. Programming:

   • Use the ISP interface for programming the flash memory.
   • Ensure the programming voltage (Vpp) is applied correctly if required by the programmer.

5. I/O Configuration:

   • Configure the I/O ports using the appropriate register settings.
   • Set the direction of the I/O pins using the TRIS registers.

6. Interrupt Handling:

   • Enable interrupts globally by setting the Global Interrupt Enable (GIE) bit.
   • Enable specific interrupt sources by setting the corresponding bits in the INTCON register.

7. Timer/Counter Operation:

   • Initialize the timer/counter modules by setting the prescaler and mode of operation.
   • Use the TMR0 and TMR1 registers to read and write timer values.

8. Serial Communication:

   • Configure the UART module by setting the baud rate, data format, and enable bits.
   • Use the TX and RX pins for serial data transmission and reception.

9. Watchdog Timer:

   • Enable the watchdog timer by setting the WDTEN bit.
   • Clear the watchdog timer periodically to prevent a system reset.

10. Low-Power Modes:

    • Enter sleep mode by setting the SLEEP bit in the status register.
    • Wake up from sleep mode using an interrupt or external trigger.

11. Temperature Considerations:

    • Ensure the operating temperature remains within the industrial range (-40掳C to +85掳C) to avoid damage or malfunction.

12. Storage and Handling:

    • Store the device in a dry environment to prevent moisture damage.
    • Handle the device with care to avoid static discharge, which can damage the sensitive components.

For detailed information, refer to the datasheet and application notes provided by the manufacturer.

(For reference only)