ATMEGA168PA-AU The ATMEGA168PA-AU is an 8-bit AVR microcontroller from Microchip Technology with 16KB Flash memory, 1KB SRAM, and 512B EEPROM. It operates at up to 20MHz and features 23 I/O pins with I²C, SPI, and UART interfaces.
Mfr Part #:

ATMEGA168PA-AU

Available from 2 distributors
Mfr Name: Atmel
Atmel
The ATMEGA168PA-AU is an 8-bit AVR microcontroller from Microchip Technology with 16KB Flash memory, 1KB SRAM, and 512B EEPROM. It operates at up to 20MHz and features 23 I/O pins with I²C, SPI, and UART interfaces.
✓ Total Stock: 19,106 pcs

ATMEGA168PA-AU Available from 2 distributors

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ATMEGA168PA-AU Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
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EEPROM Size
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Number of I/O
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Oscillator Type
Peripherals
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ATMEGA168PA-AU Description

Short technical summary and product information.

The ATMEGA168PA-AU is a high-performance, low-power 8-bit AVR microcontroller based on the advanced RISC architecture. It features 16KB of in-system self-programmable Flash, 1KB of SRAM, and 512 bytes of EEPROM, with endurance of 10,000 write/erase cycles for Flash and 100,000 for EEPROM. Data retention is rated at 20 years at 85°C. The device achieves up to 20 MIPS throughput at 20MHz clock frequency.

 

The microcontroller includes a rich set of peripherals: two 8-bit timer/counters, one 16-bit timer/counter, six PWM channels, an 8-channel 10-bit ADC, and a programmable watchdog timer. Communication interfaces include I²C, SPI, and UART/USART. The operating voltage range is 1.8V to 5.5V, making it suitable for battery-powered applications. Active current consumption is only 0.2mA at 1MHz and 1.8V, and power-down current is 0.1µA.

 

The ATMEGA168PA-AU is available in a 32-lead TQFP package with a 7x7mm body and gull-wing leads. It is rated for industrial temperature range from -40°C to +85°C. The device is RoHS3 compliant and has an MSL rating of 3 (168 hours).

 

Typical applications include embedded control systems, sensor interfaces, motor control, and low-power IoT devices. The AVR architecture provides a robust instruction set and development ecosystem, including the Atmel Studio IDE and QTouch capacitive touch support.

ATMEGA168PA-AU Quick Information

Product Type: Microcontroller
Series: ATmega
Canonical Name: ATMEGA168PA-AU 8-bit AVR Microcontroller with 16KB Flash, 1KB RAM, 512B EEPROM, 32-TQFP
Subcategory: 8-bit Microcontroller

ATMEGA168PA-AU Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 3 (168 Hours)
REACH Status: REACH Unaffected

ATMEGA168PA-AU Features

  • High-performance 8-bit AVR RISC architecture.
  • 16KB Flash with 10,000 write/erase cycles.
  • 1KB SRAM and 512B EEPROM on-chip.
  • Up to 20 MHz operating speed.
  • Low power consumption with 0.1µA power-down current.

ATMEGA168PA-AU Applications

  • Ideal for embedded control and automation.
  • Suitable for battery-powered IoT devices.
  • Used in sensor interface and data acquisition.
  • Motor control with PWM outputs.
  • Capacitive touch sensing with QTouch support.

ATMEGA168PA-AU FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the ATMEGA168PA-AU?

1.8V to 5.5V.

What package is the ATMEGA168PA-AU available in?

32-TQFP (7x7mm).

What is the operating temperature range?

-40°C to +85°C.

Is the ATMEGA168PA-AU RoHS compliant?

Yes, RoHS3 compliant.

What is the maximum clock speed?

20 MHz.

How much Flash memory does it have?

16KB (8K x 16).

What communication interfaces are supported?

I²C, SPI, and UART/USART.

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