Microchip Technology ATMEGA48A-AUR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.89 | $1.89 |
| 15+ | $1.83 | $27.45 |
| 25+ | $1.79 | $44.75 |
| 50+ | $1.69 | $84.50 |
| 100+ | $1.49 | $149.00 |
| N+ | $0.30 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Microchip Technology |
| Product Series | AVR® ATmega |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| 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-TQFP (7x7) |
| Package / Case | 32-TQFP |
| ROHS |  |
The Microchip ATMEGA48A-AUR is a high-performance 8-bit AVR microcontroller in a compact 32-TQFP package. It delivers 20MHz processing speed with 4KB of flash memory and 512 bytes of SRAM. Operating from 1.8V to 5.5V, it includes essential features like brown-out detection, power-on reset, PWM, and a watchdog timer. This MCU is engineered for reliable operation across -40°C to 85°C, making it a versatile choice for embedded control applications.
- Wide Voltage Range (1.8V-5.5V): Simplifies power supply design and supports both battery and regulated 5V systems.
- High-Speed AVR Core (20MHz): Provides ample processing headroom for real-time control loops and communication protocols.
- Integrated Safety Features: Brown-out reset and watchdog timer enhance system reliability in noisy or unstable environments.
- Compact TQFP-32 Package: Saves PCB space while offering enough I/O pins for moderate complexity designs.
Industrial Sensor Node
With its 20MHz AVR core and 4KB flash, the ATMEGA48A-AUR can handle sensor data acquisition and basic signal processing in industrial environments, operating reliably from -40°C to 85°C.
Battery-Powered IoT Devices
The 1.8V to 5.5V supply range allows direct operation from two AA batteries or a Li-Po cell, while the low-power sleep modes extend battery life in wireless sensor networks.
Motor Control for Small Appliances
Integrated PWM channels enable efficient speed control of small DC or brushless motors, with the watchdog timer ensuring safe operation in case of firmware faults.
Automotive Aftermarket Modules
The wide temperature range and robust reset circuitry make it suitable for automotive add-on modules like window controllers or seat position memory, where voltage fluctuations are common.
Portable Medical Monitors
Low power consumption and small TQFP footprint allow for compact, battery-operated health monitoring devices such as pulse oximeters or glucometers.
Smart Home Controllers
Its 512 bytes of RAM and rich peripheral set (PWM, timers) make it ideal for managing lighting scenes, thermostat schedules, or security keypads in home automation systems.
- Q: What is the maximum clock speed of the ATMEGA48A-AUR?
- A: The AVR core supports up to 20MHz operation.
- Q: What is the program memory size?
- A: It has 4KB of flash memory (2K x 16 bits).
- Q: What is the operating voltage range?
- A: It operates from 1.8V to 5.5V.
- Q: What package is this device available in?
- A: It comes in a 32-pin TQFP package.
- Q: Does it include a watchdog timer?
- A: Yes, it features a WDT along with POR and Brown-out Detect/Reset.
ATMEGA48A-AUR.pdf
- Q: What is the maximum clock speed of the ATMEGA48A-AUR?
- A: The AVR core supports up to 20MHz operation.
- Q: What is the program memory size?
- A: It has 4KB of flash memory (2K x 16 bits).
- Q: What is the operating voltage range?
- A: It operates from 1.8V to 5.5V.
- Q: What package is this device available in?
- A: It comes in a 32-pin TQFP package.
- Q: Does it include a watchdog timer?
- A: Yes, it features a WDT along with POR and Brown-out Detect/Reset.
