Details

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BUY P80C31 https://www.utsource.net/itm/p/12611255.html

Parameter	Symbol	Min	Typ	Max	Unit
Supply Voltage	Vcc	2.7	5	5.5	V
Operating Temperature	Ta	-40	-	85	掳C
Storage Temperature	Tstg	-65	-	150	掳C
Maximum Current per I/O Pin	I/O	-	-	25	mA
Maximum Total I/O Current	I/Otot	-	-	200	mA
Reset Input High Level	Vrh	2.7	-	5.5	V
Reset Input Low Level	Vrl	0	-	0.8	V
Clock Frequency	fosc	0	-	20	MHz
Power-on Reset Time	tpor	0	10	100	渭s
Watchdog Timer Period	twdt	0	16	64	ms

Instructions for Use:

1. Power Supply:

   • Ensure the supply voltage (Vcc) is within the range of 2.7V to 5.5V.
   • The device operates optimally at 5V.

2. Temperature Range:

   • The operating temperature (Ta) should be between -40掳C and 85掳C.
   • For storage, the temperature (Tstg) can range from -65掳C to 150掳C.

3. Current Limits:

   • Do not exceed 25mA per I/O pin.
   • The total current through all I/O pins should not exceed 200mA.

4. Reset Input:

   • The reset input high level (Vrh) should be between 2.7V and 5.5V.
   • The reset input low level (Vrl) should be between 0V and 0.8V.

5. Clock Frequency:

   • The clock frequency (fosc) can range from 0Hz to 20MHz.

6. Power-on Reset:

   • The power-on reset time (tpor) is typically 10渭s but can be up to 100渭s.

7. Watchdog Timer:

   • The watchdog timer period (twdt) can be set between 16ms and 64ms.

Additional Notes:

• Always refer to the specific datasheet for detailed information and any updates.
• Proper decoupling capacitors should be used near the power supply pins to ensure stable operation.
• Ensure that the reset circuitry is correctly implemented to avoid unintended resets.

(For reference only)