Details

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Communications Controller

Parameter	Description	Min	Typ	Max	Unit
Supply Voltage (Vcc)	Operating supply voltage	4.75	5.0	5.25	V
Operating Temperature Range	Ambient temperature for operation	-40	-	85	°C
Storage Temperature Range	Temperature range for storage	-65	-	150	°C
Clock Frequency	Maximum clock frequency	-	16	-	MHz
I/O Voltage	Input/output voltage levels	4.75	5.0	5.25	V
I/O Current	Maximum I/O current per pin	-	-	25	mA
Power Consumption	Typical power consumption at max clock	-	1.5	-	W
Reset Input Low Time	Minimum reset input low time	10	-	-	μs
Reset Input High Time	Minimum reset input high time	10	-	-	μs
Data Bus Width	Width of data bus	16	-	-	bits
Address Bus Width	Width of address bus	24	-	-	bits
Internal Memory	On-chip memory size	-	128	-	KB
External Memory Interface	Maximum external memory addressable	-	16	-	MB
UART Interfaces	Number of UART interfaces	-	2	-	-
DMA Channels	Number of DMA channels	-	4	-	-
Timer/Counters	Number of timer/counters	-	4	-	-
Interrupt Sources	Number of interrupt sources	-	32	-	-

Instructions:

1. Power Supply:

   • Ensure the supply voltage (Vcc) is within the specified range (4.75V to 5.25V).
   • Use appropriate decoupling capacitors near the power pins to stabilize the supply.

2. Temperature:

   • Operate the device within the specified ambient temperature range (-40°C to 85°C).
   • Store the device within the storage temperature range (-65°C to 150°C).

3. Clocking:

   • Use a stable clock source with a maximum frequency of 16 MHz.
   • Ensure the clock signal has a clean and consistent waveform to avoid timing issues.

4. I/O Handling:

   • Do not exceed the maximum I/O current of 25 mA per pin.
   • Ensure the I/O voltage levels are within the specified range (4.75V to 5.25V).

5. Reset:

   • Apply a reset pulse with a minimum low time of 10 μs and a minimum high time of 10 μs to ensure proper initialization.

6. Data and Address Buses:

   • Configure the data bus width to 16 bits and the address bus width to 24 bits.
   • Ensure proper termination and signal integrity on both buses.

7. Memory:

   • Utilize the internal 128 KB of memory for program and data storage.
   • Configure the external memory interface to access up to 16 MB of external memory if needed.

8. Peripherals:

   • Configure and use the 2 UART interfaces, 4 DMA channels, and 4 timer/counters as required by your application.
   • Manage the 32 interrupt sources to handle various events efficiently.

9. Power Consumption:

   • Monitor the typical power consumption of 1.5 W at maximum clock frequency to ensure adequate cooling and power supply design.

10. General:

    • Refer to the device datasheet for detailed specifications and additional information.
    • Follow best practices for PCB layout and design to ensure reliable operation.

(For reference only)