Details

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BUY P82C55A-2 https://www.utsource.net/itm/p/6525497.html
N/A

Parameter	Description	Value	Unit
Operating Voltage	Supply voltage range for operation	4.75 to 5.25	V
I/O Ports	Number of bidirectional I/O lines	24
Data Bus Width	Width of the data bus	8-bit	bits
Interface Type	Type of interface supported	Parallel
Operating Temperature	Temperature range for reliable operation	-40 to +85	°C
Storage Temperature	Temperature range for storage	-65 to +150	°C
Power Consumption	Maximum power consumption at max operating temp	300	mW

Instructions for P82C55A-2:

1. Power Supply Connection:

   • Connect the VCC pin to a stable 5V supply within the specified range (4.75V to 5.25V).
   • Ensure the GND pin is properly grounded.

2. Initialization:

   • Before using the I/O ports, initialize the P82C55A-2 using control word registers.
   • Set the mode and direction (input or output) for each port as required by your application.

3. Data Transfer:

   • Use the data bus to transfer data between the microcontroller and the P82C55A-2.
   • Write data to the output ports or read data from the input ports via the data bus.

4. Port Configuration:

   • Port A, B, and C can be configured independently as either input or output.
   • Refer to the datasheet for specific control word settings to configure each port.

5. Temperature Considerations:

   • Operate the device within the specified temperature range (-40°C to +85°C) for reliable performance.
   • Store the device in environments not exceeding the storage temperature limits (-65°C to +150°C).

6. Power Management:

   • Keep power consumption within the specified limit (300mW maximum) to avoid overheating and ensure stable operation.

7. Handling Static Electricity:

   • Handle the component with care to avoid damage from static electricity, especially when interfacing it with other components.

For detailed specifications and advanced configurations, refer to the official datasheet provided by the manufacturer.

(For reference only)