Details

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BUY ATMEGA64A-AU https://www.utsource.net/itm/p/11249161.html

Parameter	Description	Value
Package	The type of package used for the component	TQFP-64 (10x10)
Operating Voltage (Vcc)	Range of supply voltage for operation	2.7 V to 5.5 V
Operating Temperature (Tamb)	Range of ambient temperature for operation	-40°C to 85°C
Flash Memory	Size of on-chip Flash memory	64 KB
EEPROM	Size of on-chip EEPROM	2 KB
SRAM	Size of on-chip SRAM	4 KB
Clock Speed	Maximum clock frequency	16 MHz (20 MHz at 3.0 V to 5.5 V)
I/O Pins	Number of I/O pins available	53
Analog-to-Digital Converter (ADC)	Number of ADC channels and resolution	8 channels, 10-bit resolution
Digital-to-Analog Converter (DAC)	Number of DAC channels and resolution	Not available
Timers/Counters	Number and type of timers/counters	3 (2 x 8-bit, 1 x 16-bit)
Serial Communication Interfaces	Types of serial communication interfaces	SPI, USART, TWI (I2C)
Watchdog Timer	Availability of watchdog timer	Yes
Brown-out Detection (BOD)	Availability of brown-out detection	Yes
Power Consumption	Typical power consumption at 3.0 V, 1 MHz	0.7 mA
Program Memory Endurance	Number of write/erase cycles for Flash memory	10,000 cycles
Data Retention	Data retention time for Flash and EEPROM	20 years at 85°C, 100 years at 25°C
Package Pin Count	Number of pins in the package	64
Supply Current	Typical supply current at 3.0 V, 1 MHz	1.8 mA

Instructions for Using ATMEGA64A-AU

1. Power Supply:

   • Connect the Vcc pin to a stable power supply within the range of 2.7 V to 5.5 V.
   • Connect the GND pin to the ground.

2. Clock Configuration:

   • Use an external crystal or oscillator for the clock source if needed.
   • Configure the internal RC oscillator for lower precision applications.

3. Programming:

   • Use an ISP (In-System Programming) programmer to program the Flash memory.
   • Ensure the programming voltage (Vpp) is correctly applied if using high-voltage programming.

4. Reset Pin:

   • Connect a pull-up resistor to the reset pin (RSTDISBL fuse can be programmed to disable the reset function).

5. Analog Inputs:

   • Connect analog signals to the ADC pins (PA0-PA7).
   • Configure the ADC in software to select the appropriate channel and start conversion.

6. Digital I/O:

   • Configure the direction of I/O pins (input or output) using the DDRx registers.
   • Read or write to the PORTx registers to control the state of the pins.

7. Serial Communication:

   • Configure the USART, SPI, or TWI (I2C) interfaces in software.
   • Connect the appropriate pins for the selected interface.

8. Timers/Counters:

   • Configure the timers/counters in software to set up the desired mode of operation.
   • Use the prescaler to adjust the clock frequency.

9. Interrupts:

   • Enable and configure interrupts in software to handle events such as timer overflows, UART receive, etc.

10. Power Management:

    • Use sleep modes to reduce power consumption when the microcontroller is idle.
    • Configure the BOD to monitor the supply voltage and reset the device if it drops below a certain threshold.

11. Watchdog Timer:

    • Enable the watchdog timer to ensure the microcontroller resets if it hangs or enters an undefined state.

12. Debugging:

    • Use the JTAG interface for debugging purposes if available.
    • Monitor the behavior of the microcontroller using an oscilloscope or logic analyzer connected to the I/O pins.

13. Storage and Handling:

    • Store the microcontroller in a static-protective bag to prevent damage from electrostatic discharge (ESD).
    • Handle the microcontroller with care to avoid physical damage to the pins and package.

(For reference only)