ATMEGA3209-MFR

Microcontrollers Overview

The ATMEGA3209-MFR is an 8-bit AVR microcontroller from the megaAVR® 0-series, featuring a hardware multiplier and up to 20 MHz operation. It provides 32 KB of self-programmable Flash memory, 4 KB of SRAM, and 256 bytes of EEPROM. The device includes one 16-bit Timer/Counter Type A (TCA), four 16-bit Timer/Counters Type B (TCB), one Real-Time Counter (RTC), four USARTs, one SPI, and one TWI interface. It utilizes a 48-pin UQFN or TQFP package with 41 programmable I/O lines.

Microcontrollers Feature Summary

• Supports vertical migration without code modification across the megaAVR® 0-series family due to full pin and feature compatibility.
• Integrates an Event System for core-independent inter-peripheral signaling and SleepWalking peripherals for low-power wake-up.
• Includes a single-pin Unified Program Debug Interface (UPDI) for programming and debugging.
• Features configurable Custom Logic (CCL) with Look-up Tables and a 10-bit Analog-to-Digital Converter.

Microcontrollers Applications

• Industrial control systems requiring extended temperature operation
• Battery-powered devices utilizing SleepWalking and multiple sleep modes
• Automotive applications using VAO qualified variants
• Sensor interfaces using ADC and analog comparators

Microcontrollers Procurement Notes

Verify the specific package type (UQFN or TQFP) and suffix requirements against the datasheet before ordering. Confirm that the -MFR suffix aligns with the required carrier type and temperature range specifications for the intended application environment.

Microcontrollers Selection Notes

Select this model for designs requiring 41 I/O lines and extensive peripheral counts within a compact footprint. Ensure voltage levels match the specified speed grades for the target operating frequency. Consider the -MFR suffix for tape and reel packaging needs in automated assembly processes.

Microcontrollers Part Context

This component belongs to the megaAVR® 0-series, which offers horizontal and vertical migration paths. The ATmega3209 variant specifically provides 32 KB Flash and supports 48-pin packages, distinguishing it from lower pin-count siblings like the ATmega3208.

Microcontrollers Replacement Considerations

ATMEGA3209-AUR

Microcontrollers FAQ

What is the maximum operating frequency for the ATMEGA3209-MFR?

The device runs at up to 20 MHz, with specific speed grades defined by voltage and temperature ranges.

How many Timer/Counters are available on this MCU?

It includes one 16-bit Timer/Counter Type A (TCA) and up to four 16-bit Timer/Counters Type B (TCB).

Does this device support simultaneous master and slave operations?

Yes, the TWI interface can operate simultaneously as a master and slave on different pins.