Microchip Technology ATMEGA168-20MU
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $5.00 | $5.00 |
| 15+ | $4.60 | $69.00 |
| 25+ | $4.50 | $112.50 |
| 50+ | $4.25 | $212.50 |
| 100+ | $3.75 | $375.00 |
| N+ | $0.75 | 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 | 16KB (8K x 16) |
| Program Memory Type | FLASH |
| EEPROM Size | 512 x 8 |
| RAM Size | 1K 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 | 32-VQFN (5x5) |
| Package / Case | 32-VFQFN Exposed Pad |
| ROHS |
The ATMEGA168-20MU is a popular 8-bit AVR microcontroller from Microchip, running at 20MHz. It offers 16KB flash and 1KB SRAM, with a supply voltage range of 2.7V to 5.5V. This MCU includes essential peripherals like PWM, POR, and WDT, packaged in a compact 32-VFQFN. With an operating temperature range of -40°C to 85°C, it is a reliable choice for hobbyist and commercial embedded projects.
- High Compatibility: Widely used in Arduino ecosystem, ensuring extensive community support and libraries.
- Flexible Voltage: Operates from 2.7V to 5.5V, easing integration with various sensors and actuators.
- Compact Footprint: 32-VFQFN saves PCB space for space-constrained designs.
- Proven Performance: 20MHz speed handles complex logic and communication protocols efficiently.
Arduino-Compatible Prototypes
As the core of many Arduino boards, this MCU is ideal for rapid prototyping of IoT devices and robotics.
3D Printer Controllers
16KB flash and PWM outputs are sufficient for basic stepper motor control in desktop 3D printers.
Smart Home Sensors
Low power modes and 2.7V operation enable battery-powered door/window sensors and thermostats.
Automotive Aftermarket
5.5V tolerance and -40°C rating make it suitable for engine monitoring modules in classic cars.
Data Loggers
1KB SRAM allows buffering of sensor data before writing to external EEPROM or SD cards.
LED Matrix Displays
Fast PWM and sufficient I/O pins drive 8x8 LED matrices for scrolling text displays.
- Q: What is the core speed of the ATMEGA168-20MU?
- A: It operates at up to 20MHz with an AVR core.
- Q: What is the supply voltage?
- A: It requires 2.7V to 5.5V, supporting both 3.3V and 5V logic.
- Q: How much flash memory does it have?
- A: It has 16KB of flash (8K x 16 bits).
- Q: What package is available?
- A: It comes in a 32-VFQFN package with exposed pad.
- Q: What is the core speed of the ATMEGA168-20MU?
- A: It operates at up to 20MHz with an AVR core.
- Q: What is the supply voltage?
- A: It requires 2.7V to 5.5V, supporting both 3.3V and 5V logic.
- Q: How much flash memory does it have?
- A: It has 16KB of flash (8K x 16 bits).
- Q: What package is available?
- A: It comes in a 32-VFQFN package with exposed pad.

ATMEGA168-20MU.pdf