ATtiny406 AVR® Microcontrollers

Microchip Technology ATtiny406 AVR® Microcontrollers are capable of running at up to 20MHz with up to 4KB Flash, 256bytes of SRAM, and 128 bytes of EEPROM. These MCUs use the low-power AVR RSIC architecture and the latest technologies, including Event System and SleepWalking. The ATtiny406 MCUs feature core independent peripherals, accurate analog features, multiple clock options, Single Pin Unified Program Debug Interface (UPDI), and three sleep modes. These MCUs operate at -40°C to +125°C temperature range and are available in a 20-pin package.

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Description Datasheet Availability Pricing (USD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Core
Program Memory Size
Data RAM Size
Package/Case
Maximum Clock Frequency
ADC Resolution
Number of I/Os
Supply Voltage - Min
Supply Voltage - Max
Mounting Style
Data Bus Width
Minimum Operating Temperature
Maximum Operating Temperature
Series
Packaging
Microchip Technology 8-bit Microcontrollers - MCU 20MHz, 4KB, SOIC20, Ind 125C, Green, T&R
Datasheet
2,234In Stock
Cut Tape
$0.99
$0.949
$0.943
$0.921
Reel
$0.811
Min.: 1
Mult.: 1
: 1,500
AVR 4 kB 256 B SOIC-20 20 MHz 10 bit 18 I/O 1.8 V 5.5 V SMD/SMT 8 bit - 40 C + 125 C ATtiny406 Reel, Cut Tape
Microchip Technology 8-bit Microcontrollers - MCU 20MHz, 4KB, QFN20, Ind 105C, Green, T&R
Datasheet
11,735In Stock
Cut Tape
$0.711
$0.69
$0.663
$0.661
$0.59
Reel
$0.59
MouseReel Available
Min.: 1
Mult.: 1
: 6,000
AVR 4 kB 256 B VQFN-20 20 MHz 10 bit 18 I/O 1.8 V 5.5 V SMD/SMT 8 bit - 40 C + 105 C ATtiny406 Reel, Cut Tape, MouseReel
Microchip Technology 8-bit Microcontrollers - MCU 20MHz, 4KB, SOIC20, Ind 105C, Green, T&R
Datasheet
1,500In Stock
Cut Tape
$0.961
$0.934
$0.933
$0.927
$0.906
Reel
$0.794
Min.: 1
Mult.: 1
: 1,500
AVR 4 kB 256 B SOIC-20 20 MHz 10 bit 18 I/O 1.8 V 5.5 V SMD/SMT 8 bit - 40 C + 105 C ATtiny406 Reel, Cut Tape
Microchip Technology 8-bit Microcontrollers - MCU 20MHz, 4KB, VQFN20, Ext 125C, Tray
Datasheet
836In Stock
$0.711
$0.65
$0.59
Min.: 1
Mult.: 1
AVR 4 kB 256 B VQFN-20 16 MHz 10 bit 18 I/O 2.7 V 5.5 V SMD/SMT 8 bit/16 bit - 40 C + 125 C Tray
Microchip Technology 8-bit Microcontrollers - MCU 20MHz, 4KB, VQFN20, Ind 105C, Tray
Datasheet
760In Stock
$0.711
$0.65
$0.59
Min.: 1
Mult.: 1
AVR 4 kB 256 B VQFN-20 16 MHz 10 bit 18 I/O 2.7 V 5.5 V SMD/SMT 8 bit/16 bit - 40 C + 105 C Tray
Microchip Technology 8-bit Microcontrollers - MCU 20MHz, 4KB, QFN20, Ind 125C, Green, T&R
Datasheet
4,757In Stock
12,000Expected 2026/12/17
Cut Tape
$0.711
$0.69
Reel
$0.69
MouseReel Available
Min.: 1
Mult.: 1
: 6,000
AVR 4 kB 256 B VQFN-20 20 MHz 10 bit 18 I/O 1.8 V 5.5 V SMD/SMT 8 bit - 40 C + 125 C ATtiny406 Reel, Cut Tape, MouseReel
Microchip Technology 8-bit Microcontrollers - MCU 20MHz, 4KB, SOIC20, Ind 125C, Green, Tube
Datasheet
584In Stock
$0.99
$0.90
$0.811
Min.: 1
Mult.: 1
AVR 4 kB 256 B SOIC-20 20 MHz 10 bit 18 I/O 1.8 V 5.5 V SMD/SMT 8 bit - 40 C + 125 C ATtiny406 Tube
Microchip Technology 8-bit Microcontrollers - MCU 20MHz, 4KB, SOIC20, Ind 105C, Green, Tube
Datasheet
1,350In Stock
$0.961
$0.88
$0.794
Min.: 1
Mult.: 1
AVR 4 kB 256 B SOIC-20 20 MHz 10 bit 18 I/O 1.8 V 5.5 V SMD/SMT 8 bit - 40 C + 105 C ATtiny406 Tube