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ATMEGA4809-AF

MCHPATMEGA4809-AF

Microchip Technology
AVR megaAVR® 0, Functional Safety (FuSa) Microcontroller IC 8-Bit 20MHz 48KB (24K x 16) FLASH 48-TQFP (7x7)
Active15,994 in stock
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Overview

The ATMEGA4809-AF is an 8-bit AVR microcontroller featuring a 20MHz clock speed, 48KB of Flash memory, and 6KB of RAM. It integrates an extensive set of peripherals and communication interfaces, making it suitable for embedded applications requiring robust performance and functional safety features. This device is designed for surface mount applications in a 48-TQFP package.

Why Choose This Part

Engineers benefit from the ATMEGA4809-AF's balance of performance and cost, backed by the well-established AVR ecosystem. Its integrated functional safety features reduce the complexity of developing safety-critical systems. The rich peripheral set, including the Event System and Configurable Custom Logic, allows for flexible hardware-based task management and reduced CPU overhead.

Applications

Industrial Control Systems
Its robust feature set, including the Watchdog Timer with Window mode and CRC code memory scan, makes it well-suited for reliable operation in industrial automation and control.
Functional Safety Applications
With its Functional Safety (FuSa) designation and features like Brown-out Detect/Reset and Power-on Reset, it is a strong candidate for safety-critical embedded designs.
Motor Control
The integrated PWM and 20MHz core speed provide the necessary capabilities for precise motor speed and position control in various applications.
Sensor Data Acquisition
The multiple communication interfaces (I2C, SPI, USART) and 10-bit ADC resolution enable efficient collection and processing of data from various sensors.
Smart Home Appliances
Its low power modes (Idle, Standby, Power-Down) and configurable custom logic (CCL) make it suitable for energy-efficient smart devices requiring custom logic functions.
Human-Machine Interface (HMI)
The ample I/O count (41) and versatile communication options support implementing user interfaces with buttons, displays, and other input/output elements.

Key Specifications

Speed 20MHz
RAM Size 6K x 8
Core Size 8-Bit
EEPROM Size 256 x 8
Peripherals Brown-out Detect/Reset, POR, PWM, WDT
Connectivity I2C, SPI, UART/USART
Mounting Type Surface Mount
Number of I/O 41
Core Processor AVR
Package / Case 48-TQFP
Data Converters A/D 16x10b
Oscillator Type Internal
Program Memory Size 48KB (48K x 8)
Program Memory Type FLASH
Operating Temperature -40degC ~ 125degC (TA)
Supplier Device Package 48-TQFP (7x7)
Voltage - Supply (Vcc/Vdd) 1.8V ~ 5.5V

Getting Started

To get started with the ATMEGA4809-AF, utilize Microchip's MPLAB X IDE and the MPLAB XC8 compiler. Debugging and programming are typically done via Microchip's curiosity or Xplained development boards, using the single-pin Unified Program Debug Interface (UPDI). Example code and libraries are available in the MPLAB Code Configurator (MCC).

ATMEGA4809 Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number Package Flash Temp Range Stock
ATMEGA4809-AF (this part) TQFP-48 48KB -40degC ~ 125degC .. 15,994
ATMEGA4809-MU (Microchip) VFQFN-48 48KB -40degC ~ 85degC (.. 911

Also Consider

ATMEGA328P MCHPMicrochip Technology - A widely used 8-bit AVR microcontroller, offering a simpler feature set and lower cost for less complex applications.
ATSAMD21G18A MCHPMicrochip Technology - A 32-bit ARM Cortex-M0+ based alternative from Microchip for applications requiring higher processing power or more advanced peripherals.

Categories

Microcontrollers Industrial & Automation > Functional Safety
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