Microchip Technology ATMEGA164P-20AUR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $4.68 | $4.68 |
| 15+ | $4.54 | $68.10 |
| 25+ | $4.44 | $111.00 |
| 50+ | $4.19 | $209.50 |
| 100+ | $3.70 | $370.00 |
| N+ | $0.74 | 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 | 32 |
| 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 | 44-TQFP (10x10) |
| Package / Case | 44-TQFP |
| ROHS |
The ATMEGA164P-20AUR from Microchip is an 8-bit AVR MCU running at 20MHz. It offers 16KB flash and 1KB RAM, with PWM, WDT, and brown-out detection. Operating from 2.7V to 5.5V, it comes in a 44-TQFP package, making it a robust choice for cost-sensitive embedded control.
- Wide voltage range (2.7V-5.5V) – simplifies power supply design.
- 20MHz performance – sufficient for real-time control loops.
- Proven AVR architecture – extensive community and code examples.
- Compact 44-TQFP – saves PCB space.
Automotive Aftermarket Sensors
5V operation and 20MHz speed allow direct interface with legacy 5V sensors in retrofitted vehicles.
Home Appliance Control
PWM outputs drive triacs for motor speed control in fans and washing machines, with WDT for safety.
Battery Management Systems
Low-power modes and 2.7V operation extend battery life in portable power tools.
Educational Robotics Kits
Simple AVR architecture and 44-pin package make it easy for students to build line-following robots.
HVAC Thermostats
Reliable brown-out detection prevents erratic behavior during compressor startup.
Lighting Ballasts
PWM dimming control for LED drivers with minimal external components.
- Q: What is the maximum speed?
- A: 20MHz.
- Q: What voltage range?
- A: 2.7V to 5.5V.
- Q: How much flash and RAM?
- A: 16KB flash and 1KB RAM.
- Q: What package?
- A: 44-TQFP.
- Q: Does it have PWM?
- A: Yes, plus WDT and brown-out detection.
- Q: What is the maximum speed?
- A: 20MHz.
- Q: What voltage range?
- A: 2.7V to 5.5V.
- Q: How much flash and RAM?
- A: 16KB flash and 1KB RAM.
- Q: What package?
- A: 44-TQFP.
- Q: Does it have PWM?
- A: Yes, plus WDT and brown-out detection.

ATMEGA164P-20AUR.pdf