Microchip ATMEGA328-AU, 8 bit AVR, megaAVR Microcontroller, 20 MHz, 32kB FLASH, 32-Pin TQFP

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Subtotal (1 pack of 5 units)*

TWD403.00

(exc. GST)

TWD423.15

(inc. GST)

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In Stock
  • 100 unit(s) ready to ship from another location
  • Plus 1,430 unit(s) shipping from December 17, 2025
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Units
Per unit
Per Pack*
5 - 5TWD80.60TWD403.00
10 +TWD78.20TWD391.00

*price indicative

Packaging Options:
RS Stock No.:
131-0267
Mfr. Part No.:
ATMEGA328-AU
Manufacturer:
Microchip
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Brand

Microchip

Series

megaAVR

Product Type

Microcontroller

Package Type

TQFP

Mount Type

Surface

Pin Count

32

Device Core

AVR

Data Bus Width

8bit

Program Memory Size

32kB

Interface Type

USART, SPI

Maximum Clock Frequency

20MHz

RAM Size

2kB

Maximum Supply Voltage

5.5V

Number of Programmable I/Os

23

Analogue Comparators

1

Minimum Operating Temperature

-40°C

Maximum Operating Temperature

85°C

Standards/Approvals

No

Width

7.1 mm

Height

1.05mm

Length

7.1mm

Minimum Supply Voltage

1.8V

Distrelec Product Id

304-37-087

Number of Timers

2

Program Memory Type

FLASH

ADCs

8 x 10 Bit

Automotive Standard

No

Instruction Set Architecture

RISC

ATmega328 8-Bit megaAVR Microcontrollers


The Atmel ATmega328 Microcontroller is an 8-bit megaAVR device based on the AVR enhanced RISC architecture. By executing powerful instructions in a single clock cycle the ATmega328 achieves throughputs approaching 1 MIPS per MHz, balancing power consumption and speed.

Microcontroller Features


20 MHz Max. Operating Frequency

Up to 20 MIPS at 20 MHz

32 KB Flash

1024 B EEPROM

2 KB SRAM

131 Instructions – Most single clock cycle execution

32 General Purpose Registers

23 GPIO

Power-on Reset and Programmable Brown-out Detection

Internal Calibrated Oscillator

External and Internal Interrupt Sources

Five Power-Saving Sleep Modes

Internal and External Interrupts

Fully Static Operation

Peripheral Features


10-bit 15 ksps Analogue-to-Digital Converter (ADC) – 8 or 6 channels

Capacitive Touch Sense – 16 channels

Temperature Sensor

Two 8-bit Timers

One 16-bit Timer

Output Compare Module – 6 channels

Six PWM Channels

Programmable Serial USART

Master/Slave SPI Serial Interface

Byte-oriented 2-wire Serial Interface – I2C compatible

Programmable Watchdog Timer with Separate Oscillator

Analogue Comparator

Interrupt and Wake-up on Pin Change

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