Microchip Technology ATMEGA168-20MQR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $3.80 | $3.80 |
| 15+ | $3.68 | $55.20 |
| 25+ | $3.60 | $90.00 |
| 50+ | $3.40 | $170.00 |
| 100+ | $3.00 | $300.00 |
| N+ | $0.60 | 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 | 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 ~ 105°C (TA) |
| Grade | - |
| Qualification AEC | - |
| Mounting Type | Surface Mount |
| Supplier Device Package | 32-VQFN (5x5) |
| Package / Case | 32-VFQFN Exposed Pad |
| ROHS |
The Microchip ATMEGA168-20MQR is a high-performance 8-bit AVR microcontroller with 16KB flash and 1KB SRAM, operating at up to 20MHz. It supports a wide supply voltage from 2.7V to 5.5V and is housed in a 32-VFQFN package with exposed pad for efficient heat dissipation. Built-in brown-out detection, power-on reset, PWM, and watchdog timer make it a robust choice for automotive and industrial applications requiring extended temperature tolerance.
- 20MHz operation delivers fast processing for time-critical control loops, improving system responsiveness.
- Wide voltage range (2.7-5.5V) simplifies power supply design, supporting both legacy 5V and modern 3.3V logic.
- 16KB flash memory accommodates complex firmware with room for future updates, reducing product lifecycle costs.
- Exposed pad VFQFN package enhances thermal conductivity, enabling reliable operation at 105°C ambient.
Automotive Engine Control Units
The 20MHz speed and 16KB flash handle real-time sensor fusion for fuel injection timing, while the 105°C rating withstands engine bay heat.
Industrial Motor Drives
With 1KB SRAM and PWM outputs, it can implement closed-loop speed control for brushless DC motors in factory automation.
Smart Grid Meters
The wide voltage range (2.7-5.5V) allows direct interfacing with power-line monitoring circuits, and the WDT ensures continuous operation.
Robotics Controllers
Its 20MHz processing power and 32-pin package enable multi-axis servo control in hobby and educational robots.
Medical Device Peripherals
The extended temperature range and reliable reset circuitry support infusion pump monitoring systems in clinical environments.
Telecom Base Station Monitors
It can log environmental data and manage alarm thresholds in remote telecom shelters, operating reliably from -40°C to 105°C.
- Q: What is the maximum operating frequency?
- A: It runs at 20MHz, providing high throughput for real-time control tasks.
- Q: What is the supply voltage range?
- A: It accepts 2.7V to 5.5V, making it compatible with both 3.3V and 5V systems.
- Q: How much program memory is available?
- A: It has 16KB of flash memory (8K x 16 bits) for complex firmware.
- Q: What is the operating temperature range?
- A: It is rated for -40°C to 105°C, suitable for automotive under-hood applications.
- Q: What package does it come in?
- A: It is offered in a 32-pin VFQFN exposed pad package for improved thermal performance.
- Q: What is the maximum operating frequency?
- A: It runs at 20MHz, providing high throughput for real-time control tasks.
- Q: What is the supply voltage range?
- A: It accepts 2.7V to 5.5V, making it compatible with both 3.3V and 5V systems.
- Q: How much program memory is available?
- A: It has 16KB of flash memory (8K x 16 bits) for complex firmware.
- Q: What is the operating temperature range?
- A: It is rated for -40°C to 105°C, suitable for automotive under-hood applications.
- Q: What package does it come in?
- A: It is offered in a 32-pin VFQFN exposed pad package for improved thermal performance.

ATMEGA168-20MQR.pdf