ATTINY406-MFR The ATTINY406-MFR is an 8-bit AVR microcontroller by Microchip with 4KB Flash, 256B RAM, and 128B EEPROM, operating at up to 20 MHz. It features 18 I/O lines, 10-bit ADC, and I2C/SPI/UART connectivity in a compact 20-VQFN package.
Mfr Part #:

ATTINY406-MFR

Available from 4 distributors
Mfr Name: Microchip Technology
Microchip Technology
The ATTINY406-MFR is an 8-bit AVR microcontroller by Microchip with 4KB Flash, 256B RAM, and 128B EEPROM, operating at up to 20 MHz. It features 18 I/O lines, 10-bit ADC, and I2C/SPI/UART connectivity in a compact 20-VQFN package.
✓ Total Stock: 39,438 pcs

ATTINY406-MFR Available from 4 distributors

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✓ Non-Authorised

ATTINY406-MFR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
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Connectivity
Core Processor
Core Size
Data Converters
EEPROM Size
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Number of I
Operating Temperature
Oscillator Type
Peripherals
Program Memory Size
Program Memory Type
RAM Size
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Supplier Device Package
Tape & Reel
Voltage

ATTINY406-MFR Description

Short technical summary and product information.

The ATTINY406-MFR is a member of Microchip's tinyAVR 0-series of microcontrollers, built around an 8-bit AVR core capable of running at up to 20 MHz. It offers 4KB of in-system self-programmable Flash memory, 256 bytes of SRAM, and 128 bytes of EEPROM, providing ample storage for small embedded applications.

 

This microcontroller integrates a rich set of peripherals including 18 general-purpose I/O pins, a 12-channel 10-bit analog-to-digital converter (ADC), two 16-bit timers, and serial interfaces for I2C, SPI, and UART/USART communication. Additional on-chip features such as Brown-out Detection (BOD), Power-On Reset (POR), Watchdog Timer (WDT), Event System, CRC, and Configurable Custom Logic (CCL) enhance system reliability and flexibility.

 

The device operates over a wide supply voltage range of 1.8V to 5.5V and an industrial temperature range of -40°C to +125°C, making it suitable for harsh environments. For full 20 MHz operation, a supply voltage of 4.5V to 5.5V is required. The ATTINY406-MFR is housed in a 20-lead VFQFN with exposed pad (20-VQFN 3x3mm) and is supplied in tape and reel packaging for automated assembly.

ATTINY406-MFR Quick Information

Product Type: Microcontroller
Series: ATtiny406
Canonical Name: Microchip ATTINY406-MFR 8-bit AVR Microcontroller
Subcategory: 8-bit Microcontroller

ATTINY406-MFR Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

ATTINY406-MFR Features

  • 8-bit AVR core running at up to 20 MHz.
  • 4KB Flash, 256B SRAM, 128B EEPROM memory.
  • 18 I/O pins with 12-channel 10-bit ADC.
  • I2C, SPI, and UART/USART serial interfaces.
  • Wide supply voltage range 1.8V to 5.5V.

ATTINY406-MFR Applications

  • Used in embedded control and sensor interface applications.
  • Ideal for low-power battery-operated devices.
  • Suitable for industrial control systems with wide temperature range.
  • Can be used in IoT edge nodes.
  • Common in consumer electronics requiring compact design.

ATTINY406-MFR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the ATTINY406-MFR?

The supply voltage range is 1.8V to 5.5V. For full 20 MHz operation, 4.5V to 5.5V is required.

What package is the ATTINY406-MFR available in?

It is available in a 20-VFQFN Exposed Pad package (20-VQFN 3x3mm).

What is the operating temperature range of this microcontroller?

The operating temperature range is -40°C to +125°C.

Is the ATTINY406-MFR RoHS compliant?

It is listed as RoHS3 compliant, but this status is unverified from external sources.

What is the maximum clock frequency of the ATTINY406-MFR?

The maximum clock frequency is 20 MHz at 4.5V-5.5V supply voltage.

How much Flash memory does the ATTINY406-MFR have?

It has 4KB of Flash program memory.

What serial communication interfaces are supported?

I2C, SPI, and UART/USART are supported.

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