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ATMEGA328-MU

ATMEGA328-MU

ATMEGA328-MU

Microchip Technology

32KB 16K x 16 FLASH AVR 8-Bit Microcontroller AVR® ATmega Series ATMEGA328 32 Pin 20MHz 5V 32-VFQFN Exposed Pad

SOT-23

ATMEGA328-MU Datasheet PDF

non-compliant

Technical Specifications

Parameter NameValue
TypeParameter
Factory Lead Time 7 Weeks
Mount Surface Mount
Mounting Type Surface Mount
Package / Case 32-VFQFN Exposed Pad
Contact PlatingTin
Surface MountYES
Number of Pins 32
Supplier Device Package 32-VQFN (5x5)
Number of Terminals 32
Mounting Style SMD/SMT
Manufacturer Package Identifier 32M1-A
Interfaces SPI/USART
Data Converters A/D 8x10b
Family Name ATmega
Instruction Set Architecture RISC
Dimensions 5.1 x 5.1 x 0.95mm
Typical Operating Supply Voltage 1.8 → 5.5 V
Package Type QFN/MLF
Maximum Operating Temperature+85 °C
Minimum Operating Temperature -40 °C
MSL MSL 3 - 168 hours
Qualification -
Number of I/Os 23 I/O
Interface Type I2C, SPI, USART
Manufacturer Microchip
Brand Microchip Technology / Atmel
Tradename AVR
RoHS Details
Package Tray
Base Product Number ATMEGA328
Mfr Microchip Technology
Product Status Active
Number of I/O Lines 23
Package Shape SQUARE
Operating Temperature-40°C~85°C TA
PackagingTray
Series AVR® ATmega
Published 1997
JESD-609 Code e3
Pbfree Code yes
Part StatusActive
Moisture Sensitivity Level (MSL) 3 (168 Hours)
Number of Terminations 32
Terminal Finish Matte Tin (Sn)
Additional FeatureALSO OPERATES AT 2.7 V MINIMUM SUPPLY AT 10 MHZ AND 1.8 V MINIMUM SUPPLY AT 4 MHZ
Terminal Position QUAD
Terminal FormNO LEAD
Peak Reflow Temperature (Cel) 260
Supply Voltage 5V
Terminal Pitch0.5mm
Reach Compliance Code compliant
Frequency 20MHz
Time@Peak Reflow Temperature-Max (s) 40
Base Part Number ATMEGA328
Pin Count32
JESD-30 Code S-PQCC-N32
Qualification StatusNot Qualified
Supply Voltage-Max (Vsup) 5.5V
Power Supplies2/5V
Temperature GradeINDUSTRIAL
Supply Voltage-Min (Vsup) 4.5V
Interface 2-Wire, I2C, SPI, UART, USART
Memory Size32kB
Oscillator TypeInternal
Number of I/O 23
Speed 20MHz
RAM Size 2K x 8
Voltage - Supply (Vcc/Vdd) 1.8V~5.5V
uPs/uCs/Peripheral ICs Type MICROCONTROLLER, RISC
Core Processor AVR
Peripherals Brown-out Detect/Reset, POR, PWM, WDT
Program Memory TypeFLASH
Core Size 8-Bit
Program Memory Size 32KB 16K x 16
Connectivity I2C, SPI, UART/USART
Supply Current-Max 12 mA
Bit Size 8
Data Converter A/D 8x10b
Watchdog TimerYes
Has ADC YES
DMA Channels NO
Data Bus Width 8b
PWM Channels YES
DAC Channels NO
Seated Height-Max 1 mm
Number of Timers/Counters 3
Product Type8-bit Microcontrollers - MCU
ROM (words) 16384
EEPROM Size 1K x 8
CPU Family AVR RISC
RAM (bytes) 2048
Number of ADC Channels 8
ROM Programmability FLASH
Number of PWM Channels 6
Number of I2C Channels 1
Product MCU
Product Category8-bit Microcontrollers - MCU
Device CoreAVR
Length 5.1mm
Height 1mm
Width 5.1mm
REACH SVHC No SVHC
RoHS StatusROHS3 Compliant
In-Stock:3426 items

Pricing & Ordering

QuantityUnit PriceExt. Price
1$2.60000$2.6
500$2.574$1287
1000$2.548$2548
1500$2.522$3783
2000$2.496$4992
2500$2.47$6175

ATMEGA328-MU Product Details

ATMEGA328-MU Overview


There is a 32-VFQFN Exposed Pad package available. The board has 23 I/Os. Using the Mounting Type Surface Mount, the MCU is mounted on PCB. A 8-Bit core is used in order to power the IC chip. The type of memory it uses for its program is FLASH. -40°C~85°C TA is the temperature range at which this Microcontroller operates. AVR® ATmega-series components are electrical components. In the case of this Microcontroller, the memory size of the program is 32KB 16K x 16. Powered by a AVR Core processor. Microcontroller's a MICROCONTROLLER, RISC uPs/uCs/Peripheral IC. IC Chip terminations are 32. As a result, this Microcontroller comes with a 8-bit size. Input voltage for the chip is 5V volts. A total of NO DMA channels are available. This IC part has a memory size of 32kB. There are a number of alternatives to the base part number ATMEGA328 that you can find. Performing well when operated at frequency 20MHz can be achieved. Using YES PWM channels, the device works. On the chip, there are 32 pins that can be accessed. It comes with 3 timers/counters that can be set up. The pins counted are 32. The device is powered by the the AVR RISC CPU family that is embedded in it. In addition to these features, there are a number of other ones, such as this one: ALSO OPERATES AT 2.7 V MINIMUM SUPPLY AT 10 MHZ AND 1.8 V MINIMUM SUPPLY AT 4 MHZ. The device has a total of 8 ADC channels in total. There are 6 PWM channels used by the device in total. A total of 1 I2C channels have been integrated into the part.

ATMEGA328-MU Features


32-VFQFN Exposed Pad package
Mounting type of Surface Mount


ATMEGA328-MU Applications


There are a lot of Microchip Technology
ATMEGA328-MU Microcontroller applications.


  • Toys
  • Robots
  • Radio
  • Television
  • Heater/Fan
  • Calculator
  • Kindle
  • Christmas lights
  • 3D printers
  • Washing machine

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