8-bit AVR microcontroller featuring 32KB FLASH memory and 2KB RAM. Operates at up to 20MHz with an 8-bit data bus. Offers 23 I/O pins, 8 ADC channels, and 6 PWM channels. Supports I2C, SPI, and UART interfaces. Packaged in a 28-pin VQFN, this surface-mount component operates from 1.8V to 5.5V and has an operating temperature range of -40°C to 85°C.
Frequency20MHz
PackageVQFN
MountingSurface Mount
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Technical Specifications
Microchip ATMEGA328-MMH technical specifications.
General
Package/Case
VQFN
Core Architecture
AVR
Data Bus Width
8b
Frequency
20MHz
Height
0.95mm
Interface
I2C, SPI, UART, USART
Length
4.05mm
Max Frequency
20MHz
Max Operating Temperature
85°C
Max Supply Voltage
5.5V
Memory Size
32KB
Memory Type
FLASH,
Min Operating Temperature
-40°C
Min Supply Voltage
1.8V
Mount
Surface Mount
Number of ADC Channels
8
Number of I/Os
23
Number of I2C Channels
1
Number of PWM Channels
6
Number of SPI Channels
1
Number of Timers/Counters
3
Oscillator Type
Internal
Packaging
Tray
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
RAM Size
2KB
Reach SVHC Compliant
No
RoHS Compliant
Yes
Series
AVR® ATmega
Width
4.05mm
Compliance
RoHS
Compliant
Datasheet
Microchip ATMEGA328-MMH Datasheet
Download the complete datasheet for Microchip ATMEGA328-MMH to view detailed technical specifications.
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