Microchip Technology

ATMEGA328-MMHR  

Microcontrollers

The ATMEGA328-MMHR is a microcontroller unit (MCU) produced by Microchip Technology. It is a part of the AVR Enhanced series and is based on the AVR architecture. This MCU is designed for a wide range of applications, including industrial control, automotive, and consumer electronics.

Description:

The ATMEGA328-MMHR is a high-performance 8-bit microcontroller with a high-density, non-volatile memory. It features an integrated 32 KB flash memory for program storage, 2 KB static RAM (SRAM), and 1 KB EEPROM. The MCU operates at a frequency of up to 20 MHz and is available in a 28-pin, 0.6" mm pitch, QFN package.

Features:

1. 8-bit AVR enhanced RISC architecture for high code density and high execution speed
2. Up to 32 KB of In-System Programmable (ISP) flash with read-while-write capability
3. 2 KB of SRAM and 1 KB of EEPROM
4. 32 general-purpose input/output (GPIO) pins with optional internal pull-up resistors
5. 23 extended I/O pins with additional functions
6. 3-channel 8-bit fast multiplying DAC with 8-bit resolution
7. 8 MHz internal RC oscillator with calibration
8. External 32.768 kHz crystal oscillator for accurate timekeeping
9. 6-channel 16-bit timer/counter with PWM and input capture
10. 2-channel 16-bit USART with multi-sync and LIN support
11. 7-channel 10-bit ADC with up to 8 analog inputs
12. USB 2.0 full-speed (12 Mbps) interface with integrated PHY
13. JTAG interface for programming and debugging
14. On-chip debugging support with background debugging capability
15. Sleep mode, power-save mode, and idle mode for low-power operation
16. Brownout detection and reset
17. Three software selectable power saving modes

Applications:

The ATMEGA328-MMHR is suitable for a wide range of applications due to its versatility and high performance. Some common applications include:

1. Industrial control systems
2. Automotive electronics
3. Consumer electronics
4. Home automation and smart home devices
5. Robotics and automation
6. IoT devices and applications
7. Medical equipment and devices
8. Portable electronics and battery-powered devices
9. Data acquisition and signal processing systems
10. Embedded systems in various industries

The ATMEGA328-MMHR's combination of performance, memory, and I/O capabilities make it a popular choice for developers looking to create efficient and reliable embedded systems.

ATMEGA328-MMHR Documents

Download datasheets and manufacturer documentation for ATMEGA328-MMHR

Errata :

ATmega48A/PA/88A/PA/168A/PA/328/P Errata      

PCN Assembly/Origin :

Fabrication Site 27/Sep/2023      

Datasheets :

ATmega48A/PA/88A/PA/168A/PA/328/P      

PCN Packaging :

MBB/Label Chgs 16/Nov/2018       Tape and Reel Label Update 10/Feb/2015      

Design Resources :

ATmega328 Development Tool Selector      

PCN Design/Specification :

Marking Chgs 11/Jul/2017       ATmega48A/PA/88A/PA/168A/PA/328/P 10/Sep/2020      

Environmental Information :

Microchip CA Prop65       Microchip RoHS       Microchip REACH