AVR Microcontrollers

Microcontrollers, also referred to as MCUs (microcontroller units), are embedded semiconductor devices used in circuit board design.

What is an AVR microcontroller, and how does it differ from other types?

  • An AVR microcontroller refers to a specific type of architecture design, initially developed by the Amtel corporation in 1996 and since engineered through numerous stages of improvements, refinements and iterations
  • AVR microcontrollers are very widely used today in all kinds of embedded systems and circuits, having become especially popular in recent years due to their inclusion in many Arduino hardware products, a type of open development platform aimed chiefly at hobbyist and educational applications, robot builders, experimenters and small system developers
  • Other popular uses of AVR microcontrollers include numerous automotive applications, including security, safety, powertrain and in-car entertainment systems, as well as several types of desktop computer and console controllers and other peripherals

Although they can be thought of in very general terms as a sort of miniaturised ‘computer' component embedded as part of a powered integrated circuit (IC), microcontrollers themselves are relatively limited in scope. They're chiefly used to perform repetitive, single-function tasks requiring only limited clock speeds and comparatively low memory speeds to execute.


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Description Price Family Name Package Type Mounting Type Pin Count Device Core Data Bus Width Program Memory Size Maximum Frequency RAM Size USB Channels Number of PWM Units ADC Channels Number of SPI Channels Typical Operating Supply Voltage
RS Stock No. 696-3070
Mfr. Part No.ATMEGA88PA-MU
BrandMicrochip
£1.11
Each
Units
ATmega MLF Surface Mount 32 AVR 8bit 512 B, 8 kB 20MHz 1 kB 0 3 8 1 1.8 → 5.5 V
RS Stock No. 696-3506
Mfr. Part No.ATMEGA88P-20AU
BrandMicrochip
£0.81
Each
Units
ATmega TQFP Surface Mount 32 AVR 8bit 512 B, 8 kB 20MHz 1 kB 0 3 8 2 2.7 → 5.5 V
RS Stock No. 738-0552
Mfr. Part No.ATMEGA8U2-MU
BrandMicrochip
£0.74
Each
Units
ATmega QFN Surface Mount 32 AVR 8bit 8 kB 16MHz 1.024 kB - 2 - 1 2.7 → 5.5 V
RS Stock No. 922-5400
Mfr. Part No.ATTINY1634R-SU
BrandMicrochip
£1.106
Each (In a Tube of 37)
Units
ATtiny SOIC Surface Mount 20 AVR 8bit 16 kB, 256 B 12MHz 1 kB 0 1 12 1 1.8 → 5.5 V
RS Stock No. 131-0255
Mfr. Part No.ATMEGA324P-20PU
BrandMicrochip
£3.60
Each
Units
ATmega PDIP Through Hole 40 AVR 8bit 32 kB 20MHz 2 kB 0 1 8 - 2.7 → 5.5 V
RS Stock No. 131-0256
Mfr. Part No.ATMEGA324PA-AU
BrandMicrochip
£2.91
Each (In a Pack of 2)
Units
ATmega TQFP Surface Mount 44 AVR 8bit 32 kB 20MHz 2 kB 0 1 8 - 1.8 → 5.5 V
RS Stock No. 131-0265
Mfr. Part No.ATMEGA325PA-AU
BrandMicrochip
£1.00
Each
Units
ATmega TQFP Surface Mount 64 AVR 8bit 32 kB 20MHz 2 kB 0 1 8 - 1.8 → 5.5 V
RS Stock No. 133-0962
Mfr. Part No.ATTINY1634-MN
BrandMicrochip
£0.954
Each (In a Pack of 5)
Units
AVR QFN/MLF Surface Mount 20 AVR 8bit 16 kB 12MHz 1 kB 0 1 12 - 1.8 → 5.5 V
RS Stock No. 131-0257
Mfr. Part No.ATMEGA324PA-MU
BrandMicrochip
£2.21
Each (In a Pack of 2)
Units
ATmega VQFN Surface Mount 44 AVR 8bit 32 kB 20MHz 2 kB 0 1 8 - 1.8 → 5.5 V
RS Stock No. 177-3499
Mfr. Part No.ATXMEGA128A1U-C7U
BrandMicrochip
£5.005
Each (In a Tray of 260)
Units
ATMEGA VFBGA Surface Mount 100 AVR 8 bit, 16bit 128 kB 32MHz 8 B - - 16 12 1.6 → 3.6 V
RS Stock No. 133-0963
Mfr. Part No.ATTINY1634-MU
BrandMicrochip
£0.726
Each (In a Pack of 5)
Units
AVR QFN/MLF Surface Mount 20 AVR 8bit 16 kB 12MHz 1 kB 0 1 12 - 1.8 → 5.5 V
RS Stock No. 131-0258
Mfr. Part No.ATMEGA324PA-PU
BrandMicrochip
£2.96
Each
Units
ATmega PDIP Through Hole 40 AVR 8bit 32 kB 20MHz 2 kB 0 1 8 - 1.8 → 5.5 V
RS Stock No. 131-0275
Mfr. Part No.ATMEGA328P-PN
BrandMicrochip
£1.67
Each (In a Pack of 2)
Units
ATmega PDIP Through Hole 28 AVR 8bit 32 kB 20MHz 2 kB 0 1 6 - 1.8 → 5.5 V
RS Stock No. 177-3500
Mfr. Part No.ATXMEGA128A4U-CU
BrandMicrochip
£3.288
Each (In a Tray of 490)
Units
ATMEGA VFBGA Surface Mount 49 AVR 8 bit, 16bit 128 kB 32MHz 8 B - - 11 7 1.6 → 3.6 V
RS Stock No. 133-1734
Mfr. Part No.ATXMEGA64A1U-AU
BrandMicrochip
£3.31
Each
Units
AVR XMEGA TQFP Surface Mount 100 AVR 8 bit, 16bit 64 + 4 kB 32MHz 4 kB 1 1 16 - 1.6 → 3.6 V
RS Stock No. 133-1685
Mfr. Part No.ATTINY87-SU
BrandMicrochip
£0.39
Each (In a Pack of 5)
Units
AVR SOIC Surface Mount 20 AVR 8bit 8 kB 16MHz 512 B 0 1 11 - 1.8 → 5.5 V
RS Stock No. 127-8243
Mfr. Part No.ATMEGA162V-8MU
BrandMicrochip
£2.58
Each
Units
ATmega TQFP Surface Mount 44 AVR 8bit 16 kB 8MHz 1 kB 0 1 0 - 1.8 → 5.5 V
RS Stock No. 133-0972
Mfr. Part No.ATTINY2313-20MU
BrandMicrochip
£1.022
Each (In a Pack of 5)
Units
AVR MLF Surface Mount 20 AVR 8bit 2 kB 20MHz 128 B 0 1 - - 2.7 → 5.5 V
RS Stock No. 131-0267
Mfr. Part No.ATMEGA328-AU
BrandMicrochip
£1.508
Each (In a Pack of 5)
Units
ATmega TQFP Surface Mount 32 AVR 8bit 32 kB 20MHz 2 kB 0 1 8 - 1.8 → 5.5 V
RS Stock No. 177-3501
Mfr. Part No.ATXMEGA192A3U-MH
BrandMicrochip
£4.46
Each (In a Tray of 260)
Units
ATMEGA QFN Surface Mount 64 AVR 8 bit, 16bit 192 kB 32MHz 16 B - - 16 10 1.6 → 3.6 V