Microchip Technology ATMEGA324PA-AN

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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 32
Program Memory Size 32KB (16K x 16)
Program Memory Type FLASH
EEPROM Size 1K x 8
RAM Size 2K x 8
Voltage - Supply (Vcc/Vdd) 1.8V ~ 5.5V
Data Converters A/D 8x10b
Oscillator Type Internal
Operating Temperature -40°C ~ 105°C (TA)
Grade -
Qualification AEC -
Mounting Type Surface Mount
Supplier Device Package 44-TQFP (10x10)
Package / Case 44-TQFP
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The Microchip ATMEGA324PA-AN is a powerful 8-bit AVR microcontroller in a 44-pin TQFP. It features a 20MHz RISC core, 32KB Flash, and 2KB RAM, operating from 1.8V to 5.5V. With Brown-out Reset, POR, PWM, and WDT, it is designed for demanding industrial and automotive applications.

  • 32KB Flash + 2KB RAM: Supports complex applications and data buffering.
  • 20MHz AVR core: High throughput with single-cycle instructions.
  • Extended temperature (105°C): Suitable for under-hood automotive.
  • 44-pin TQFP: Rich I/O for peripheral interfacing.

Advanced Motor Control

With 32KB Flash and 20MHz, it runs FOC algorithms for 3-phase motors in robotics.

Industrial HMI Panels

Its 44-pin TQFP provides enough I/O for keypads and LCD interfaces.

Networking Gateways

Supports multiple UART/SPI interfaces for protocol conversion in building automation.

Data Acquisition Systems

2KB RAM buffers samples from multiple ADCs for vibration analysis.

Automotive Control Units

Rated to 105°C, it handles engine compartment sensors and actuators.

Medical Device Controllers

Reliable AVR core with ample memory for infusion pump or ventilator logic.

Q: What is the core architecture?
A: It uses the AVR 8-bit RISC core.
Q: What is the maximum speed?
A: It runs at up to 20MHz.
Q: How much Flash and RAM does it have?
A: It has 32KB Flash and 2KB RAM.
Q: What is the operating temperature range?
A: It supports -40°C to +105°C.
Q: What package is this?
A: It comes in a 44-pin TQFP package.
Base Product Number : ATMEGA324PA
1.8V-5.5V 20MHz 32KB Flash 44-TQFP 8-bit MCU automotive AVR HMI industrial
Q: What is the core architecture?
A: It uses the AVR 8-bit RISC core.
Q: What is the maximum speed?
A: It runs at up to 20MHz.
Q: How much Flash and RAM does it have?
A: It has 32KB Flash and 2KB RAM.
Q: What is the operating temperature range?
A: It supports -40°C to +105°C.
Q: What package is this?
A: It comes in a 44-pin TQFP package.