Microchip Technology ATMEGA48P-20MMUR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $2.73 | $2.73 |
| 15+ | $2.64 | $39.60 |
| 25+ | $2.58 | $64.50 |
| 50+ | $2.44 | $122.00 |
| 100+ | $2.15 | $215.00 |
| N+ | $0.43 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Microchip Technology |
| Product Series | AVR® ATmega |
| Packaging | Cut Tape (CT) | NULL |
| Core Processor | AVR |
| Core Size | 8-Bit |
| Speed | 20MHz |
| Connectivity | I2C, SPI, UART/USART |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Number of I/O | 23 |
| Program Memory Size | 4KB (2K x 16) |
| Program Memory Type | FLASH |
| EEPROM Size | 256 x 8 |
| RAM Size | 512 x 8 |
| Voltage - Supply (Vcc/Vdd) | 2.7V ~ 5.5V |
| Data Converters | A/D 8x10b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification AEC | - |
| Mounting Type | Surface Mount |
| Supplier Device Package | 28-VQFN (4x4) |
| Package / Case | 28-VFQFN Exposed Pad |
| ROHS |
The Microchip ATMEGA48P-20MMUR is a high-performance 8-bit AVR microcontroller in a compact 28-VFQFN package. It delivers 20MHz processing speed with 4KB flash and 512 bytes of SRAM. Operating from 2.7V to 5.5V, it integrates PWM, WDT, and brown-out detection for robust embedded control in industrial and consumer applications.
- High-Speed 20MHz AVR Core: Executes up to 20 MIPS for real-time control tasks.
- Wide Voltage Range (2.7V-5.5V): Compatible with both 3.3V and 5V logic systems.
- Integrated Analog Comparator: Reduces external component count for threshold sensing.
- Compact 28-VFQFN Package: Saves PCB space in miniaturized designs.
Industrial Control Systems
The 20MHz AVR core with PWM and WDT provides reliable timing and reset management for motor control and process automation.
Automotive Aftermarket Sensors
With a 2.7V-5.5V supply and robust brown-out detection, it handles noisy automotive power rails in sensor interfaces.
Battery-Powered Handheld Tools
Low-power sleep modes and wide voltage range extend battery life in portable measurement devices.
Smart Home Lighting Controllers
PWM channels enable smooth dimming and color control for LED lighting modules.
Consumer Appliances
The 4KB flash is sufficient for control loops in washing machines, microwaves, and air conditioners.
Prototyping and Education
Its 28-pin QFN package and standard AVR toolchain make it ideal for teaching embedded systems.
- Q: What is the maximum clock speed of the ATMEGA48P-20MMUR?
- A: The maximum clock speed is 20MHz, allowing for high-speed processing in 8-bit applications.
- Q: What is the operating voltage range?
- A: It operates from 2.7V to 5.5V, making it suitable for both 3.3V and 5V systems.
- Q: How much flash memory does it have?
- A: It features 4KB of in-system programmable flash memory (2K x 16 bits).
- Q: What package is this device available in?
- A: It comes in a 28-VFQFN Exposed Pad package, ideal for space-constrained designs.
- Q: Does it include analog comparators?
- A: Yes, it includes an analog comparator along with PWM, WDT, and brown-out detection.
- Q: What is the maximum clock speed of the ATMEGA48P-20MMUR?
- A: The maximum clock speed is 20MHz, allowing for high-speed processing in 8-bit applications.
- Q: What is the operating voltage range?
- A: It operates from 2.7V to 5.5V, making it suitable for both 3.3V and 5V systems.
- Q: How much flash memory does it have?
- A: It features 4KB of in-system programmable flash memory (2K x 16 bits).
- Q: What package is this device available in?
- A: It comes in a 28-VFQFN Exposed Pad package, ideal for space-constrained designs.
- Q: Does it include analog comparators?
- A: Yes, it includes an analog comparator along with PWM, WDT, and brown-out detection.

ATMEGA48P-20MMUR.pdf