Microchip ATMEGA328-AU, 8bit AVR Microcontroller, ATmega, 20MHz, 32 kB Flash, 32-Pin TQFP

RS Stock No.: 131-0267Brand: MicrochipManufacturers Part No.: ATMEGA328-AU
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Technical Document

Specifications

Family Name

ATmega

Package Type

TQFP

Mounting Type

Surface Mount

Pin Count

32

Device Core

AVR

Data Bus Width

8bit

Program Memory Size

32 kB

Maximum Frequency

20MHz

RAM Size

2 kB

USB Channels

0

Number of PWM Units

1

Number of SPI Channels

2

Number of USART Channels

1

Number of UART Channels

0

Number of I2C Channels

0

Typical Operating Supply Voltage

1.8 → 5.5 V

Number of CAN Channels

0

Length

7.1mm

ADCs

8 x 10 bit

Height

1.05mm

Number of LIN Channels

0

Width

7.1mm

Dimensions

7.1 x 7.1 x 1.05mm

Pulse Width Modulation

1 (6 Channel)

Program Memory Type

Flash

Number of Ethernet Channels

0

Number of PCI Channels

0

Number of ADC Units

1

Maximum Operating Temperature

+85 °C

Maximum Number of Ethernet Channels

0

Minimum Operating Temperature

-40 °C

Instruction Set Architecture

RISC

Country of Origin

Thailand

Product details

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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$ 2.454

Each (In a Pack of 5) (Exc. Vat)

Microchip ATMEGA328-AU, 8bit AVR Microcontroller, ATmega, 20MHz, 32 kB Flash, 32-Pin TQFP
Select packaging type

$ 2.454

Each (In a Pack of 5) (Exc. Vat)

Microchip ATMEGA328-AU, 8bit AVR Microcontroller, ATmega, 20MHz, 32 kB Flash, 32-Pin TQFP
Stock information temporarily unavailable.
Select packaging type

Buy in bulk

QuantityUnit pricePer Pack
5 - 20$ 2.454$ 12.27
25 - 95$ 2.393$ 11.97
100+$ 2.332$ 11.66

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Technical Document

Specifications

Family Name

ATmega

Package Type

TQFP

Mounting Type

Surface Mount

Pin Count

32

Device Core

AVR

Data Bus Width

8bit

Program Memory Size

32 kB

Maximum Frequency

20MHz

RAM Size

2 kB

USB Channels

0

Number of PWM Units

1

Number of SPI Channels

2

Number of USART Channels

1

Number of UART Channels

0

Number of I2C Channels

0

Typical Operating Supply Voltage

1.8 → 5.5 V

Number of CAN Channels

0

Length

7.1mm

ADCs

8 x 10 bit

Height

1.05mm

Number of LIN Channels

0

Width

7.1mm

Dimensions

7.1 x 7.1 x 1.05mm

Pulse Width Modulation

1 (6 Channel)

Program Memory Type

Flash

Number of Ethernet Channels

0

Number of PCI Channels

0

Number of ADC Units

1

Maximum Operating Temperature

+85 °C

Maximum Number of Ethernet Channels

0

Minimum Operating Temperature

-40 °C

Instruction Set Architecture

RISC

Country of Origin

Thailand

Product details

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

Ideate. Create. Collaborate

JOIN FOR FREE

No hidden fees!

design-spark
design-spark
  • Download and use our DesignSpark software for your PCB and 3D Mechanical designs
  • View and contribute website content and forums
  • Download 3D Models, Schematics and Footprints from more than a million products
Click here to find out more