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Product attributes Property Value
Manufacturer Microchip Technology
Product Series megaAVR® 0, Functional Safety (FuSa)
Packaging Cut Tape (CT) | Tape & Reel (TR)
Core Processor AVR
Core Size 8-Bit
Speed 20MHz
Connectivity I2C, SPI, UART/USART
Peripherals Brown-out Detect/Reset, POR, WDT
Number of I/O 27
Program Memory Size 8KB (8K x 8)
Program Memory Type FLASH
EEPROM Size 256 x 8
RAM Size 1K x 8
Voltage - Supply (Vcc/Vdd) 1.8V ~ 5.5V
Data Converters A/D 12x10b
Oscillator Type Internal
Operating Temperature -40°C ~ 85°C (TA)
Grade -
Qualification AEC -
Mounting Type Surface Mount
Supplier Device Package 32-VQFN (5x5)
Package / Case 32-VFQFN Exposed Pad
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The ATMEGA808-MUR from Microchip is an 8-bit AVR MCU with 8KB Flash and 1KB RAM in a 32-VFQFN package. Running at 20MHz, it offers a 1.8V to 5.5V supply range with integrated BOD, POR, and WDT. This makes it a versatile choice for cost-sensitive consumer and industrial applications.

  • AVR core efficiency – executes most instructions in one clock cycle at 20MHz.
  • Low-voltage operation (1.8V) – extends battery life in portable devices.
  • Integrated BOD and WDT – enhances system reliability without extra parts.
  • 32-pin VFQFN – offers up to 27 I/O pins in a small footprint.

Consumer Electronics

8KB Flash and 1KB RAM handle remote control protocols in TVs and set-top boxes.

Automotive Aftermarket

Wide voltage range and BOD ensure reliable operation in car alarm systems.

Industrial Sensors

20MHz speed and multiple I/O pins interface with 4-20mA transmitters.

Smart Agriculture

Low-power modes and WDT support soil moisture monitors in solar-powered nodes.

Medical Wearables

Compact VFQFN package fits fitness trackers and heart-rate monitors.

Home Automation

AVR core with 1.8V operation drives Zigbee and Z-Wave modules in smart plugs.

Q: What core does this MCU use?
A: It uses the AVR 8-bit core running at 20MHz.
Q: How much Flash memory is included?
A: It has 8KB (8K x 8) of program memory.
Q: What is the supply voltage range?
A: It operates from 1.8V to 5.5V.
Q: Does it have brown-out detection?
A: Yes, it includes BOD, POR, and WDT.
Q: What package is this?
A: It comes in a 32-VFQFN exposed pad package.
Base Product Number : ATMEGA808
20MHz 32-VFQFN 8-bit MCU 8KB Flash ATMEGA808 AVR core BOD consumer industrial POR WDT
Q: What core does this MCU use?
A: It uses the AVR 8-bit core running at 20MHz.
Q: How much Flash memory is included?
A: It has 8KB (8K x 8) of program memory.
Q: What is the supply voltage range?
A: It operates from 1.8V to 5.5V.
Q: Does it have brown-out detection?
A: Yes, it includes BOD, POR, and WDT.
Q: What package is this?
A: It comes in a 32-VFQFN exposed pad package.