Microchip Technology ATMEGA164PA-MCHR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $4.47 | $4.47 |
| 15+ | $4.33 | $64.95 |
| 25+ | $4.24 | $106.00 |
| 50+ | $4.00 | $200.00 |
| 100+ | $3.53 | $353.00 |
| N+ | $0.71 | 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 | 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) | 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 | 44-QFN (5x5) |
| Package / Case | 44-VQFN Dual Rows, Exposed Pad |
| ROHS |
The Microchip ATMEGA164PA-MCHR is an 8-bit AVR microcontroller running at 20MHz with 16KB flash and 1KB SRAM. It supports 1.8V to 5.5V operation and is housed in a 44-VQFN package. With brown-out detect, POR, PWM, and WDT, it delivers reliable performance for industrial and consumer applications.
- Wide voltage range (1.8V-5.5V): Compatible with both 3.3V and 5V systems.
- 20MHz AVR core: Efficient execution for control loops.
- 44-VQFN package: Good pin count with thermal pad for heat dissipation.
- Proven AVR ecosystem: Extensive libraries and community support.
Robotics Controllers
The 20MHz AVR core with 1KB SRAM handles servo PWM and sensor inputs for hobby and educational robots.
Home Automation Hubs
With 5.5V operation, it interfaces directly with legacy 5V sensors and relays without level shifters.
Data Acquisition Systems
16KB flash stores calibration tables, while brown-out detection ensures data integrity during power loss.
Automotive Aftermarket
Operating at -40°C to 85°C, it suits car alarm or window control modules.
Industrial Timers
PWM and WDT provide precise timing for conveyor belt controllers.
Battery-Powered Tools
1.8V minimum supply allows operation from two AA batteries, with POR for safe startup.
- Q: What is the core architecture?
- A: It uses the 8-bit AVR core running at up to 20MHz.
- Q: How much flash memory does it have?
- A: It provides 16KB of flash organized as 8K x 16 words.
- Q: What is the supply voltage range?
- A: It operates from 1.8V to 5.5V.
- Q: What package is available?
- A: It comes in a 44-VQFN dual-row exposed pad package.
- Q: What is the core architecture?
- A: It uses the 8-bit AVR core running at up to 20MHz.
- Q: How much flash memory does it have?
- A: It provides 16KB of flash organized as 8K x 16 words.
- Q: What is the supply voltage range?
- A: It operates from 1.8V to 5.5V.
- Q: What package is available?
- A: It comes in a 44-VQFN dual-row exposed pad package.

ATMEGA164PA-MCHR.pdf