ATmega808 - Microcontroller Microchip - Free user manual and instructions
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| Type | Microcontroller |
| Manufacturer | Microchip Technology |
| Model | ATmega808 |
| Architecture | 8-bit AVR |
| Package | TQFP-32 |
| Number of Pins | 32 |
| Flash Memory | 8 KB |
| SRAM | 1 KB |
| EEPROM | 512 bytes |
| Max Clock Frequency | 20 MHz |
| Operating Voltage | 1.8V – 5.5V |
| Number of I/O Pins | 27 |
| ADC | 10-bit, 15 channels |
| Timers | 2x 8-bit, 1x 16-bit |
| Communication Interfaces | SPI, I2C, USART |
| Operating Temperature | -40°C to +85°C |
| Dimensions | 7 mm x 7 mm |
| Weight | approx. 0.5 g |
| Power Consumption (Active) | ~1.1 mA at 1.8V, 1 MHz |
| Programming Interface | In-System Programming via SPI |
Frequently Asked Questions - ATmega808 Microchip
What is the programming interface for the ATmega808?
The ATmega808 supports In-System Programming (ISP) via the SPI interface. You can use programmers like AVR ISP or USBasp.
Which development tools are compatible with the ATmega808?
It is supported by Microchip Studio (formerly Atmel Studio), AVR-GCC, and Arduino IDE (with appropriate core).
Can the ATmega808 be used with Arduino?
Yes, it can be used with Arduino IDE by installing a custom board core, such as MegaCore or MiniCore.
What is the maximum clock speed of the ATmega808?
The maximum clock frequency is 20 MHz at 5V operation. Lower frequencies can be used for reduced power consumption.
How much flash memory does the ATmega808 have?
It has 8 KB of Flash memory for program storage, along with 1 KB SRAM and 512 bytes EEPROM.
What is the operating voltage range for the ATmega808?
The operating voltage range is 1.8V to 5.5V, allowing for both low-power and standard 5V applications.
Does the ATmega808 have an analog-to-digital converter?
Yes, it features a 10-bit ADC with 15 multiplexed channels, suitable for analog sensor readings.
What packages are available for the ATmega808?
Common packages include TQFP-32, QFN-32, and PDIP-28. The TQFP-32 is most common for surface-mount designs.
How can I reduce power consumption of the ATmega808?
Use sleep modes (Idle, Power-down, etc.), reduce clock speed, disable unused peripherals, and operate at lower voltages.
Is the ATmega808 RoHS compliant?
Yes, Microchip produces the ATmega808 as RoHS compliant and lead-free, suitable for most commercial applications.
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Product information
Brand : Microchip
Model : ATmega808
Category : Microcontroller