Details

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BUY P89V51RD2FA https://www.utsource.net/itm/p/11658501.html

Parameter	Symbol	Min	Typ	Max	Unit	Notes
Supply Voltage	VCC	2.0	-	3.6	V
Operating Temperature		-40	-	85	掳C	Industrial temperature range
Storage Temperature		-65	-	150	掳C
DC Current Input	IIH	-	1	10	渭A	High-level input current
DC Current Output	IOL	8	-	15	mA	Low-level output current
DC Current Output (High)	IOH	-1	-	-10	mA	High-level output current
Power Consumption		-	120	-	mW	Active mode, typical value
Standby Current	ISB	0.1	-	1	渭A	Standby mode
Clock Frequency	fOSC	0	-	24	MHz	Maximum operating frequency
RAM Size		-	256	-	bytes	Internal RAM
Flash Memory Size		-	8	-	KB	Program memory
EEPROM Size		-	256	-	bytes	Non-volatile data storage
I/O Ports		-	32	-		General-purpose input/output pins
Watchdog Timer		-	-	-		On-chip watchdog timer
Brown-out Reset		-	-	-		On-chip brown-out reset
Power-on Reset		-	-	-		On-chip power-on reset
External Interrupts		-	5	-		Number of external interrupt sources
Timers/Counters		-	3	-		8-bit and 16-bit timers/counters
UART		-	1	-		Universal Asynchronous Receiver/Transmitter
SPI		-	1	-		Serial Peripheral Interface
I2C		-	1	-		Inter-Integrated Circuit

Instructions for Using the P89V51RD2FA:

1. Power Supply:

   • Ensure the supply voltage (VCC) is within the specified range of 2.0V to 3.6V.
   • Connect the ground (GND) pin to a stable ground reference.

2. Clock Configuration:

   • Use an external crystal or oscillator to provide the clock signal. The maximum frequency is 24 MHz.
   • For lower frequencies, use the internal RC oscillator or an external clock source.

3. Programming:

   • Use an ISP (In-System Programming) programmer to program the flash memory.
   • Ensure the programming voltage (VPP) is applied correctly if using a high-voltage programmer.

4. Reset:

   • Apply a low signal to the reset pin (RST) to reset the microcontroller.
   • The reset can also be triggered by the on-chip power-on reset, brown-out reset, or watchdog timer.

5. I/O Configuration:

   • Configure the I/O ports as inputs or outputs using the appropriate register settings.
   • Use pull-up resistors for input pins if necessary.

6. Interrupts:

   • Enable and configure the external interrupts using the corresponding registers.
   • Set up the interrupt service routines (ISRs) in your code.

7. Timers/Counters:

   • Initialize the timers/counters by setting the mode and prescaler values.
   • Use the timer overflow or capture/compare interrupts as needed.

8. Serial Communication:

   • Configure the UART, SPI, and I2C interfaces according to the communication protocol requirements.
   • Set the baud rate and other parameters for the UART.

9. Watchdog Timer:

   • Enable the watchdog timer to prevent the microcontroller from getting stuck in an infinite loop.
   • Periodically reset the watchdog timer to prevent a reset.

10. Brown-out Detection:

    • Enable the brown-out reset to protect against low voltage conditions.
    • Adjust the brown-out threshold if necessary.

11. EEPROM:

    • Use the on-chip EEPROM for non-volatile data storage.
    • Write data to the EEPROM using the appropriate functions and ensure proper write cycles.

12. Low Power Modes:

    • Use the standby mode to reduce power consumption when the microcontroller is not actively processing.
    • Ensure the wake-up sources are configured correctly to exit the low power mode.

13. Debugging:

    • Use the in-circuit debugger to test and debug your application.
    • Monitor the I/O pins and internal registers to verify the correct operation of the microcontroller.

By following these instructions, you can effectively use the P89V51RD2FA in your embedded systems projects.

(For reference only)