Microchip Technology ATMEGA48A-MU
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.33 | $1.33 |
| 15+ | $1.29 | $19.35 |
| 25+ | $1.26 | $31.50 |
| 50+ | $1.19 | $59.50 |
| 100+ | $1.05 | $105.00 |
| N+ | $0.21 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Microchip Technology |
| Product Series | AVR® ATmega |
| Packaging | Tray | |
| 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) | 1.8V ~ 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 | 32-VQFN (5x5) |
| Package / Case | 32-VFQFN Exposed Pad |
| ROHS |  |
The Microchip ATMEGA48A-MU is a high-performance 8-bit AVR microcontroller in a compact 32-VFQFN package. It operates from 1.8V to 5.5V and runs at up to 20MHz, delivering efficient processing for cost-sensitive embedded applications. With 4KB of flash memory and 512 bytes of SRAM, it is well-suited for control loops, sensor interfacing, and communication protocols. Integrated features include PWM, brown-out detection, power-on reset, and a watchdog timer, ensuring reliable operation in demanding environments.
- Wide Voltage Range (1.8V-5.5V): Enables direct operation from 3.3V or 5V rails without external regulators, simplifying power design.
- High Integration: Built-in brown-out detection, POR, and WDT reduce external component count and improve system reliability.
- Compact 32-VFQFN Package: Saves PCB space while providing an exposed pad for better thermal dissipation.
- Low-Power Operation: Multiple sleep modes and a 20MHz clock allow balancing performance with energy efficiency.
Battery-Powered Sensor Nodes
The 1.8V minimum supply voltage and multiple sleep modes allow the ATMEGA48A-MU to operate efficiently in low-power IoT sensor nodes, extending battery life.
Motor Control for Small Appliances
With 20MHz speed and built-in PWM channels, this MCU can generate precise control signals for small DC or stepper motors in appliances like fans and robotic toys.
Industrial Automation I/O Modules
The wide voltage range (up to 5.5V) and robust features like brown-out detection and watchdog timer ensure reliable operation in industrial control panels and PLC I/O modules.
Automotive Aftermarket Accessories
Operating from -40°C to 85°C, it can handle under-hood or cabin electronics such as window lift controllers or LED lighting modules in automotive retrofit applications.
Portable Medical Monitoring Devices
The small 32-VFQFN package and low power consumption make it suitable for compact wearable health monitors that measure pulse or temperature.
Smart Home Lighting Controllers
Its PWM outputs can drive LED dimming circuits, while the 4KB flash is sufficient for implementing custom lighting sequences and schedules.
- Q: What is the operating voltage range of the ATMEGA48A-MU?
- A: The ATMEGA48A-MU operates from 1.8V to 5.5V, making it suitable for battery-powered and 3.3V/5V systems.
- Q: What is the maximum clock speed?
- A: It supports up to 20MHz, providing a balanced performance for general-purpose embedded control.
- Q: How much flash memory does it have?
- A: It features 4KB of in-system programmable flash memory (2K x 16 bits) for program storage.
- Q: What package is available?
- A: It comes in a 32-VFQFN exposed pad package, ideal for compact PCB designs with good thermal performance.
- Q: Does it include analog comparators?
- A: Yes, it includes an analog comparator along with PWM, watchdog timer, and brown-out detection.
ATMEGA48A-MU.pdf
- Q: What is the operating voltage range of the ATMEGA48A-MU?
- A: The ATMEGA48A-MU operates from 1.8V to 5.5V, making it suitable for battery-powered and 3.3V/5V systems.
- Q: What is the maximum clock speed?
- A: It supports up to 20MHz, providing a balanced performance for general-purpose embedded control.
- Q: How much flash memory does it have?
- A: It features 4KB of in-system programmable flash memory (2K x 16 bits) for program storage.
- Q: What package is available?
- A: It comes in a 32-VFQFN exposed pad package, ideal for compact PCB designs with good thermal performance.
- Q: Does it include analog comparators?
- A: Yes, it includes an analog comparator along with PWM, watchdog timer, and brown-out detection.
