The Microchip ATMEGA329P-20MU is an 8-bit AVR microcontroller in a 64-lead QFN package that adds an on-chip LCD controller to a 32 KB flash core. With a 10-bit ADC, USART, SPI and TWI and a 20 MHz clock, it is designed for segmented-display metering and instrumentation products.
Key Specifications
| Manufacturer | Microchip Technology |
| Exact Manufacturer Part Number | ATMEGA329P-20MU |
| Product Category | 8-bit Microcontrollers – MCU |
| Series / Family | ATmega329P |
| Package / Case | 64-QFN |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C to +85°C |
| Power Supply | 2.7 V to 5.5 V |
| Program Memory | 32 KB |
| SRAM | 2 KB |
| EEPROM | 1 KB |
| Maximum Clock | 20 MHz |
| I/O Lines | 54 |
| ADC | 10-bit, 8 channels |
| Display | On-chip LCD controller |
| Interfaces | USART, SPI, TWI |
| Lifecycle Status | Active |
| Official Documentation | View official documentation |
Key Features
- 32 KB flash program memory
- On-chip LCD controller
- 20 MHz maximum clock
- 2.7 V to 5.5 V supply range
- 8-channel 10-bit ADC
- 64-lead QFN package
Applications
- Segmented LCD applications
- Metering and instrumentation
- Portable measurement
- Embedded control with display
Sourcing
Availability, lead time, date code and commercial terms are subject to confirmation at the time of quotation.
Quality
CHIPER sources brand-new, unused components and provides quality inspection, shortage and long lead-time sourcing, and one-stop BOM procurement. Every part is verified before shipment.
FAQ
What display capability does the ATmega329P have?
It integrates an on-chip LCD controller for driving segmented displays directly.
What package does the -MU suffix use?
The -MU is a 64-lead QFN package.