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Product attributes Property Value
Manufacturer Microchip Technology
Product Series megaAVR® 0, Functional Safety (FuSa)
Packaging Tube |
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 23
Program Memory Size 32KB (16K x 16)
Program Memory Type FLASH
EEPROM Size 256 x 8
RAM Size 4K x 8
Voltage - Supply (Vcc/Vdd) 1.8V ~ 5.5V
Data Converters A/D 8x10b
Oscillator Type Internal
Operating Temperature -40°C ~ 85°C (TA)
Grade -
Qualification AEC -
Mounting Type Surface Mount
Supplier Device Package 28-SSOP
Package / Case 28-SSOP (0.209", 5.30mm Width)
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The Microchip ATMEGA3208-XU is a mid-range AVR microcontroller in a 28-SSOP package. It offers 32KB Flash and 4KB SRAM at 20MHz, with a supply range of 1.8V to 5.5V. Its integrated brown-out detection and watchdog timer ensure stable operation in consumer and industrial applications.

  • 32KB Flash provides ample code space for complex applications.
  • 20MHz speed delivers responsive real-time performance.
  • Wide voltage range (1.8V-5.5V) supports battery and USB power.
  • Compact SSOP package saves PCB area.
  • Reliable BOD and WDT enhance system robustness.

Home Automation Controllers

32KB Flash and 20MHz speed handle complex protocols like Zigbee or Z-Wave bridging.

Sensor Networks

Multiple ADC inputs and low-power modes support distributed environmental monitoring.

Consumer Electronics

Compact SSOP package fits into remote controls, toys, and small appliances.

Data Loggers

4KB SRAM and EEPROM emulation allow periodic data storage without external memory.

Automotive Aftermarket

Wide voltage range and robust I/O suit car alarm and lighting accessories.

Educational Kits

Easy-to-use AVR architecture and 20MHz speed are ideal for teaching embedded systems.

Q: What is the program memory size?
A: It has 32KB Flash (organized as 16K x 16).
Q: What is the maximum speed?
A: The AVR core runs at 20MHz.
Q: What is the SRAM capacity?
A: It includes 4KB SRAM.
Q: What package is used?
A: It is in a 28-SSOP package.
Q: What is the temperature range?
A: It operates from -40°C to 85°C.
Base Product Number : ATMEGA3208
20MHz 32KB Flash 4KB SRAM 8-bit MCU AVR consumer home automation Microchip sensor SSOP-28
Q: What is the program memory size?
A: It has 32KB Flash (organized as 16K x 16).
Q: What is the maximum speed?
A: The AVR core runs at 20MHz.
Q: What is the SRAM capacity?
A: It includes 4KB SRAM.
Q: What package is used?
A: It is in a 28-SSOP package.
Q: What is the temperature range?
A: It operates from -40°C to 85°C.