ATmega328 8-Bit AVR MCUs

Microchip Technology ATmega328 8-Bit AVR MCUs are low-power, CMOS 8-bit microcontrollers based on the AVR® enhanced RISC architecture. The devices execute instructions in a single clock cycle to achieve CPU throughput approaching one million instructions per second (MIPS) per megahertz. This allows for optimizing power consumption versus processing speed.

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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
Qualification
Packaging
Microchip Technology 8-bit Microcontrollers - MCU AVR 32K FLSH, 1K EE 2K SRAM - 20 MHz
Datasheet
29,095In Stock
$2.42
$2.21
$2.01
Min.: 1
Mult.: 1
AVR 32 kB 2 kB TQFP-32 20 MHz 10 bit 23 I/O 1.8 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C ATmega328 Tray
Microchip Technology 8-bit Microcontrollers - MCU AVR 32K FLSH 2K SRAM 1KB EE-20 MHZ 105C
Datasheet
10,391In Stock
Cut Tape
$2.89
$2.82
Reel
$2.39
MouseReel Available
Min.: 1
Mult.: 1
: 2,000
AVR 32 kB 2 kB TQFP-32 20 MHz 10 bit 23 I/O 1.8 V 5.5 V SMD/SMT 8 bit - 40 C + 105 C ATmega328P Reel, Cut Tape, MouseReel
Microchip Technology 8-bit Microcontrollers - MCU AVR 32K FLSH 1K EE2K SRAM-20MHz IND
Datasheet
14,145In Stock
Cut Tape
$2.51
$2.47
Reel
$2.10
MouseReel Available
Min.: 1
Mult.: 1
: 2,000
AVR 32 kB 2 kB TQFP-32 20 MHz 10 bit 23 I/O 1.8 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C ATmega328 Reel, Cut Tape, MouseReel
Microchip Technology 8-bit Microcontrollers - MCU AVR 32K FLSH 1K EE2K SRAM-20MHz IND
Datasheet
7,107In Stock
Cut Tape
$2.51
$2.47
Reel
$2.47
MouseReel Available
Min.: 1
Mult.: 1
: 6,000
AVR 32 kB 2 kB MLF-32 20 MHz 10 bit 23 I/O 1.8 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C ATmega328 Reel, Cut Tape, MouseReel
Microchip Technology 8-bit Microcontrollers - MCU AVR 4KB FLSH 256B EE 512B SRAM-20MHz IND
Datasheet
1,998In Stock
Cut Tape
$1.99
$1.95
Reel
$1.65
MouseReel Available
Min.: 1
Mult.: 1
: 2,000
AVR 4 kB 512 B TQFP-32 20 MHz 10 bit 23 I/O 1.8 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C ATmega48A Reel, Cut Tape, MouseReel
Microchip Technology 8-bit Microcontrollers - MCU AVR 8KB FLSH 512B EE 1KB SRAM-20MHz
Datasheet
2,843In Stock
$1.73
$1.59
$1.42
Min.: 1
Mult.: 1
AVR 8 kB 1 kB QFN-32 20 MHz 10 bit 23 I/O 1.8 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C ATmega88A Tray
Microchip Technology 8-bit Microcontrollers - MCU AVR 8KB FL 512B EE 1KB SRAM-20MHz 105C
Datasheet
1,973In Stock
Cut Tape
$1.92
$1.87
Reel
$1.59
MouseReel Available
Min.: 1
Mult.: 1
: 2,000
AVR 8 kB 1 kB TQFP-32 20 MHz 10 bit 23 I/O 1.8 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C ATmega88PA Reel, Cut Tape, MouseReel
Microchip Technology 8-bit Microcontrollers - MCU AVR 32K FL 2K SRAM 1KB EE 20 MHZ GRN
Datasheet
832In Stock
$2.78
$2.55
$2.31
Min.: 1
Mult.: 1
AVR 32 kB 2 kB VQFN-28 20 MHz 10 bit 23 I/O 1.8 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C ATmega328P Tray

Microchip Technology 8-bit Microcontrollers - MCU 1.8V - 5.5V 20MHz 8KB Programmable
Datasheet
505In Stock
$2.15
$1.97
$1.79
Min.: 1
Mult.: 1
AVR 8 kB 1 kB QFN-28 20 MHz 10 bit 23 I/O 1.8 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C ATmega88PA Tray
Microchip Technology 8-bit Microcontrollers - MCU AVR 16KB FL 512B EE 1KB SRAM-20MHz
Datasheet
5,422In Stock
Cut Tape
$2.27
$2.19
Reel
$2.19
MouseReel Available
Min.: 1
Mult.: 1
: 6,000
AVR 16 kB 1 kB QFN-32 20 MHz 10 bit 23 I/O 1.8 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C ATmega168A Reel, Cut Tape, MouseReel
Microchip Technology 8-bit Microcontrollers - MCU AVR 4KB FLSH 256B EE 512B SRAM-20MHz IND
Datasheet
710In Stock
$1.54
$1.41
$1.27
Min.: 1
Mult.: 1
AVR 4 kB 512 B VQFN-28 20 MHz 10 bit 23 I/O 1.8 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C ATmega48A Tray
Microchip Technology 8-bit Microcontrollers - MCU AVR 4KB FL 256B EE 512B SRAM 20MHz 105C
Datasheet
703In Stock
$1.84
$1.67
$1.52
Min.: 1
Mult.: 1
AVR 4 kB 512 B TQFP-32 20 MHz 10 bit 23 I/O 1.8 V 5.5 V SMD/SMT 8 bit - 40 C + 105 C ATmega48PA Tray
Microchip Technology 8-bit Microcontrollers - MCU AVR 8KB FLSH 512B EE 1KB SRAM-20MHz
Datasheet
1,370In Stock
Cut Tape
$2.07
$2.01
Reel
$2.01
Min.: 1
Mult.: 1
: 6,000
AVR 8 kB 1 kB VQFN-28 20 MHz 10 bit 23 I/O 1.8 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C ATmega88A Reel, Cut Tape

Microchip Technology 8-bit Microcontrollers - MCU AVR 4KB FLASH 20 MHZ,IND TEMP
Datasheet
346In Stock
$2.48
$2.27
$2.04
Min.: 1
Mult.: 1
AVR 4 kB 512 B PDIP-28 20 MHz 10 bit 23 I/O 1.8 V 5.5 V Through Hole 8 bit - 40 C + 85 C ATmega48PA Tube
Microchip Technology 8-bit Microcontrollers - MCU AVR 4KB FLSH 256B EE 512B SRAM-20MHz IND
Datasheet
1,112In Stock
$1.40
$1.28
$1.16
Min.: 1
Mult.: 1
AVR 4 kB 512 B QFN-32 20 MHz 10 bit 23 I/O 1.8 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C ATmega48A Tray

Microchip Technology 8-bit Microcontrollers - MCU AVR 4KB FL 256B EE 512B SRAM 20MHz 105C
Datasheet
488In Stock
$2.07
$1.89
$1.69
Min.: 1
Mult.: 1
AVR 4 kB 512 B QFN-28 20 MHz 10 bit 23 I/O 1.8 V 5.5 V SMD/SMT 8 bit - 40 C + 105 C ATmega48PA Tray
Microchip Technology 8-bit Microcontrollers - MCU AVR 4KB FL 256B EE 512B SRAM 20MHz 105C
Datasheet
3,069In Stock
Cut Tape
$1.73
$1.67
Reel
$1.67
MouseReel Available
Min.: 1
Mult.: 1
: 6,000
AVR 4 kB 512 B QFN-32 20 MHz 10 bit 23 I/O 1.8 V 5.5 V SMD/SMT 8 bit - 40 C + 105 C ATmega48PA Reel, Cut Tape, MouseReel

Microchip Technology 8-bit Microcontrollers - MCU AVR 8KB FL 512B EE 1KB SRAM-20MHz 105C
Datasheet
5,952In Stock
Cut Tape
$2.23
$2.16
Reel
$2.16
MouseReel Available
Min.: 1
Mult.: 1
: 6,000
AVR 8 kB 1 kB VQFN-32 20 MHz 10 bit 23 I/O 1.8 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C ATmega88PA Reel, Cut Tape, MouseReel
Microchip Technology 8-bit Microcontrollers - MCU AVR 16KB FL 512B EE 1KB SRAM 20MHz 105C
Datasheet
500In Stock
$2.23
$2.04
$1.85
Min.: 1
Mult.: 1
AVR 16 kB 1 kB TQFP-32 20 MHz 10 bit 23 I/O 1.8 V 5.5 V SMD/SMT 8 bit - 40 C + 105 C ATmega168PA Tray
Microchip Technology 8-bit Microcontrollers - MCU AVR 32K FLSH 2K SRAM 1KB EE-20 MHZ 105C
Datasheet
7,052In Stock
$2.80
$2.57
$2.32
Min.: 1
Mult.: 1
AVR 32 kB 2 kB TQFP-32 20 MHz 10 bit 23 I/O 1.8 V 5.5 V SMD/SMT 8 bit - 40 C + 105 C ATmega328P Tray
Microchip Technology 8-bit Microcontrollers - MCU AVR 32K FLSH 2K SRAM 1KB EE-20MHz IND
Datasheet
36,896In Stock
Cut Tape
$2.74
$2.71
Reel
$2.30
MouseReel Available
Min.: 1
Mult.: 1
: 2,000
AVR 32 kB 2 kB TQFP-32 20 MHz 10 bit 23 I/O 1.8 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C ATmega328P Reel, Cut Tape, MouseReel
Microchip Technology 8-bit Microcontrollers - MCU AVR 32K FL 2K SRAM 1KB EE 20 MHZ GRN
Datasheet
23,904In Stock
Cut Tape
$2.87
$2.80
Reel
$2.80
MouseReel Available
Min.: 1
Mult.: 1
: 6,000
AVR 32 kB 2 kB VQFN-28 20 MHz 10 bit 23 I/O 1.8 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C ATmega328P Reel, Cut Tape, MouseReel
Microchip Technology 8-bit Microcontrollers - MCU AVR 32K FLSH 2K SRAM 1KB EE-20 MHZ 105C
Datasheet
11,613In Stock
$2.80
$2.57
$2.32
Min.: 1
Mult.: 1
AVR 32 kB 2 kB VQFN-32 20 MHz 10 bit 23 I/O 1.8 V 5.5 V SMD/SMT 8 bit - 40 C + 105 C ATmega328P Tray
Microchip Technology 8-bit Microcontrollers - MCU ATMEGA328PB IND TEMP T&R
Datasheet
11,631In Stock
Cut Tape
$1.70
$1.66
Reel
$1.41
MouseReel Available
Min.: 1
Mult.: 1
: 2,000
AVR 32 kB 2 kB TQFP-32 20 MHz 10 bit 27 I/O 1.8 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C ATmega328PB AEC-Q100 Reel, Cut Tape, MouseReel

Microchip Technology 8-bit Microcontrollers - MCU AVR 16KB FL 512B EE 1KB SRAM-20MHz
Datasheet
3,629In Stock
$2.94
$2.71
$2.45
Min.: 1
Mult.: 1
AVR 16 kB 1 kB PDIP-28 20 MHz 10 bit 23 I/O 1.8 V 5.5 V Through Hole 8 bit - 40 C + 85 C ATmega168A Tube