Product Overview
The ATMEGA164PA-AU is a high-performance, low-power 8-bit AVR RISC microcontroller from Microchip’s picoPower megaAVR family. It features 16KB ISP Flash, 512B EEPROM, and 1KB SRAM with operation up to 20MHz in a 44-pin TQFP package.
Key Specifications
| Core | AVR RISC (picoPower) |
| Max Frequency | 20MHz |
| Program Memory | 16KB Flash (ISP, Read-While-Write) |
| EEPROM | 512 bytes |
| SRAM | 1KB |
| I/O Pins | 32 |
| Timers | 2 x 8-bit, 1 x 16-bit |
| USART | 2 |
| SPI | 1 (3 SPI interfaces available) |
| I2C (TWI) | 1 |
| ADC | 8-ch 10-bit |
| PWM | 6 channels |
| JTAG | Yes |
| Supply Voltage | 1.8V to 5.5V |
| Package | 44-TQFP (10x10mm) |
| Operating Temperature | -40°C to +85°C |
Features
- picoPower technology — ultra-low power consumption
- Up to 20 MIPS at 20MHz
- On-chip 2-cycle hardware multiplier
- QTouch capacitive sensing library support
- 6 sleep modes for power optimization
- Programmable brown-out detection
- Internal calibrated RC oscillator
Applications
- Industrial control and monitoring
- Consumer electronics with touch interface
- Building automation
- Medical instruments
- Computer peripherals