Details

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BUY STC89C58RD+40I-PDIP40 https://www.utsource.net/itm/p/6831359.html

Parameter	Value
Package Type	PDIP40
Operating Voltage	5V
Flash Memory Size	8KB
RAM Size	512B
I/O Pins	32
Clock Frequency	Up to 24MHz
Watchdog Timer	Yes
Timer/Counters	3
UARTs	1
ADC Channels	No ADC
Interrupt Sources	6
Power Consumption	Low Power
Temperature Range	Industrial (-40°C to +85°C)
Programmable Logic	No
Special Features	ISP (In-System Programming), IAP (In-Application Programming)

Instructions for STC89C58RD+40I-PDIP40

1. Power Supply:

   • Connect VCC pin to +5V and GND pin to ground.
   • Ensure a stable power supply to avoid data corruption.

2. Clock Configuration:

   • Use an external crystal oscillator or ceramic resonator connected to the XTAL1 and XTAL2 pins for accurate timing.
   • For higher stability, use a precision crystal.

3. Programming:

   • Use an ISP programmer to upload code directly to the microcontroller.
   • Ensure correct settings for fuse bits to configure clock source and other hardware options.

4. Reset Pin:

   • The RST pin can be used to reset the microcontroller. A high pulse on this pin will reset the device.
   • Include a pull-down resistor to keep the pin low when not resetting.

5. I/O Ports:

   • Configure the I/O ports as input or output using the internal registers.
   • Use pull-up resistors if necessary for inputs.

6. Serial Communication:

   • Utilize the UART interface for serial communication by configuring the appropriate registers and connecting to TXD/RXD pins.

7. Timers and Interrupts:

   • Set up timers and interrupts via software configuration of SFRs (Special Function Registers).
   • Write interrupt service routines (ISRs) to handle specific events.

8. Watchdog Timer:

   • Enable the watchdog timer in software to prevent program lockup.
   • Periodically refresh the watchdog to prevent a reset.

9. Handling Static:

   • Be cautious with static electricity; handle the microcontroller with proper ESD precautions.

10. Storage Conditions:

    • Store in a dry, cool place away from direct sunlight to maintain performance and longevity.

(For reference only)