Details

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BUY 20LF43S https://www.utsource.net/itm/p/9785470.html

Parameter	Description	Value	Unit
Part Number	Microcontroller part number	20LF43S	-
Package Type	Package type	SSOP-20	-
Operating Voltage	Supply voltage range	1.8 to 5.5	V
Operating Current	Maximum operating current	2	mA
Flash Memory	Size of flash memory	4	KB
RAM	Size of RAM	256	B
EEPROM	Size of EEPROM	128	B
Clock Speed	Maximum clock frequency	20	MHz
I/O Pins	Number of input/output pins	18	-
Analog Channels	Number of analog-to-digital converter channels	10	-
Timer/Counters	Number of timer/counters	3	-
Watchdog Timer	Availability of watchdog timer	Yes	-
Operating Temp.	Operating temperature range	-40 to +85	°C

Instructions for Use:

1. Power Supply:

   • Connect the power supply within the specified operating voltage range (1.8V to 5.5V) to ensure stable operation.

2. Clock Configuration:

   • Configure the internal oscillator or connect an external crystal/resonator as per application requirements. The maximum supported clock speed is 20 MHz.

3. Pin Configuration:

   • Refer to the pinout diagram provided in the datasheet for connecting I/O pins, power, and ground.
   • Configure the I/O pins using the microcontroller's configuration settings to set them as input or output.

4. Program Upload:

   • Use an appropriate programmer or in-circuit debugger to upload code into the flash memory.
   • Ensure that the programming interface (e.g., ICSP) is correctly connected.

5. Memory Management:

   • Utilize the available 4KB flash memory for program storage and 256B RAM for data storage during runtime.
   • Use the 128B EEPROM for non-volatile data storage.

6. Analog Inputs:

   • Connect up to 10 analog signals to the ADC channels for analog-to-digital conversion.

7. Timer/Counter Setup:

   • Initialize and configure the three timers/counters as needed for timing or counting tasks.

8. Watchdog Timer:

   • Enable the watchdog timer to reset the microcontroller if it becomes unresponsive.

9. Operating Environment:

   • Ensure the device operates within the specified temperature range (-40°C to +85°C).

For detailed specifications and more advanced configurations, refer to the official datasheet of the 20LF43S microcontroller.

(For reference only)