Microchip Technology ATMEGA48A-MUR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.44 | $1.44 |
| 15+ | $1.40 | $21.00 |
| 25+ | $1.37 | $34.25 |
| 50+ | $1.29 | $64.50 |
| 100+ | $1.14 | $114.00 |
| N+ | $0.23 | 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) | 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-MUR is an 8-bit AVR microcontroller that balances performance and power efficiency. It operates from 1.8V to 5.5V at speeds up to 20MHz, with 4KB of flash and 512 bytes of SRAM. The 32-VFQFN package includes an exposed pad for thermal management, and integrated features like brown-out detection, PWM, and watchdog timer ensure reliable operation in consumer and industrial applications.
- 1.8V minimum supply voltage enables direct battery operation, reducing power conversion losses.
- 20MHz performance provides ample headroom for complex algorithms, ensuring smooth real-time responses.
- 4KB flash is sufficient for mid-size applications, offering a cost-effective solution without over-provisioning.
- 32-VFQFN package with exposed pad improves heat dissipation, enhancing long-term reliability.
Consumer Electronics Remote Controls
The 1.8V operation allows direct CR2032 battery use, while 4KB flash stores IR code tables for universal remotes.
Home Automation Sensors
With low-voltage operation and WDT, it can monitor door/window sensors and report status over Zigbee or similar protocols.
Battery Management Systems
The 20MHz speed and 512B SRAM enable real-time cell voltage monitoring in small Li-ion battery packs.
LED Display Controllers
PWM outputs drive RGB LED matrices in signage, with the 32-pin package allowing multiple I/O connections.
Portable Instrumentation
Its 1.8-5.5V range supports various sensor supplies, and the small footprint fits handheld multimeters.
Smart Toys
The low cost and 4KB flash make it ideal for interactive toys with sound and motion effects, powered by 2xAA batteries.
- Q: What is the operating voltage range?
- A: It operates from 1.8V to 5.5V, offering flexibility for low-power and standard logic designs.
- Q: What is the maximum speed?
- A: The CPU can run at 20MHz, enabling fast data processing.
- Q: How much flash memory is included?
- A: It has 4KB of flash memory (2K x 16 bits) for program storage.
- Q: What is the package type?
- A: It comes in a 32-VFQFN exposed pad package, suitable for compact PCBs.
- Q: Does it support PWM?
- A: Yes, it includes PWM channels for motor and lighting control.
- Q: What is the operating voltage range?
- A: It operates from 1.8V to 5.5V, offering flexibility for low-power and standard logic designs.
- Q: What is the maximum speed?
- A: The CPU can run at 20MHz, enabling fast data processing.
- Q: How much flash memory is included?
- A: It has 4KB of flash memory (2K x 16 bits) for program storage.
- Q: What is the package type?
- A: It comes in a 32-VFQFN exposed pad package, suitable for compact PCBs.
- Q: Does it support PWM?
- A: Yes, it includes PWM channels for motor and lighting control.

ATMEGA48A-MUR.pdf