BUY M82C51A-5 https://www.utsource.net/itm/p/1750976.html
| Parameter | Description | Value |
|---|---|---|
| Device Name | Microcontroller | M82C51A-5 |
| Operating Voltage | Supply voltage range | 4.75V to 5.25V |
| Operating Frequency | Maximum operating frequency | 12 MHz |
| I/O Pins | Number of programmable I/O pins | 32 |
| RAM Size | On-chip RAM size | 256 bytes |
| ROM Size | On-chip ROM size | 8 KB |
| Timer/Counters | Number of timer/counters | 3 |
| UART | Universal Asynchronous Receiver/Transmitter | 1 |
| Interrupt Sources | Number of interrupt sources | 5 |
| Package Type | Type of package | DIP |
| Operating Temperature | Range of operating temperature | -40°C to +85°C |
Power Supply: Ensure the supply voltage is within the specified range (4.75V to 5.25V). A stable power supply is critical for reliable operation.
Clock Configuration: Connect an external crystal or oscillator to provide a clock signal up to 12 MHz. Proper decoupling capacitors should be placed close to the power pins.
Reset Circuitry: Implement a reset circuit that holds the reset pin low during power-up and releases it after the power supply has stabilized.
Programming I/O Ports: Configure the I/O ports as inputs or outputs based on your application needs. Use the internal pull-up resistors when configuring as inputs.
Timer Setup: Initialize timers using the appropriate registers to set up desired timing intervals or counting operations.
UART Communication: Configure UART settings (baud rate, data bits, parity, stop bits) through software to enable serial communication.
Interrupt Handling: Set up interrupt priorities and enable interrupts as required. Write interrupt service routines to handle different events.
Development Tools: Utilize development tools like in-circuit emulators or compilers compatible with the M82C51A-5 for programming and debugging.
Thermal Management: Ensure adequate ventilation or cooling if operating at higher temperatures or in high ambient conditions.
Storage and Handling: Store the device in anti-static packaging and handle with care to avoid damage from electrostatic discharge.
