Microchip Technology ATMEGA168A-AU
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $2.08 | $2.08 |
| 15+ | $2.01 | $30.15 |
| 25+ | $1.97 | $49.25 |
| 50+ | $1.86 | $93.00 |
| 100+ | $1.64 | $164.00 |
| N+ | $0.33 | 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) | 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 | 32-TQFP (7x7) |
| Package / Case | 32-TQFP |
| ROHS |
The Microchip ATMEGA168A is a high-performance 8-bit AVR MCU with 16 KB Flash and 1 KB SRAM. Running at up to 20 MHz, it provides six PWM channels, a 10-bit ADC, and USART/SPI/I2C interfaces. The 32-TQFP package offers a compact footprint for industrial, medical, and consumer applications requiring reliable operation from 1.8V to 5.5V.
- High Integration: 16 KB Flash, 1 KB SRAM, and 512B EEPROM in a small package.
- Flexible Power: 1.8V-5.5V range supports Li-ion and alkaline batteries.
- Advanced Peripherals: 10-bit ADC, 6 PWM channels, and multiple serial interfaces.
- Reliable Operation: Brown-out reset and watchdog timer ensure system stability.
- Industry Standard: Widely used AVR architecture with extensive tool support.
Industrial Automation Sensors
The 20 MHz AVR core and 10-bit ADC enable precise analog signal processing in proximity and temperature sensors.
Medical Device Peripherals
With 1.8V operation and reliable brown-out detection, it suits portable glucose meters and pulse oximeters.
Smart Agriculture Monitors
Low power and wide voltage range support soil moisture and weather station nodes in remote fields.
Consumer Audio Accessories
Its PWM and UART interfaces drive LED effects and control in Bluetooth speakers and amplifiers.
Automotive Interior Lighting
Operating at -40°C to 85°C, it manages RGB LED controllers and ambient lighting modules.
Prototyping and Education
The 32-TQFP package and rich peripherals make it a staple for university embedded systems labs.
- Q: What is the maximum speed of the ATMEGA168A-AU?
- A: It operates at up to 20 MHz with a 1.8V-5.5V supply.
- Q: How much Flash memory does it have?
- A: It includes 16 KB of in-system programmable Flash.
- Q: What package is this MCU?
- A: It comes in a 32-pin TQFP package, suitable for surface-mount assembly.
- Q: Does it have a brown-out detector?
- A: Yes, it features programmable brown-out detection and reset.
- Q: What are the main communication interfaces?
- A: It supports USART, SPI, and I2C (TWI) protocols.
- Q: What is the maximum speed of the ATMEGA168A-AU?
- A: It operates at up to 20 MHz with a 1.8V-5.5V supply.
- Q: How much Flash memory does it have?
- A: It includes 16 KB of in-system programmable Flash.
- Q: What package is this MCU?
- A: It comes in a 32-pin TQFP package, suitable for surface-mount assembly.
- Q: Does it have a brown-out detector?
- A: Yes, it features programmable brown-out detection and reset.
- Q: What are the main communication interfaces?
- A: It supports USART, SPI, and I2C (TWI) protocols.

ATMEGA168A-AU.pdf