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ATMEGA4808-MFR

MCHPATMEGA4808-MFR

Microchip Technology
AVR megaAVR® 0, Functional Safety (FuSa) Microcontroller IC 8-Bit 20MHz 48KB (24K x 16) FLASH 32-VFQFN (5x5)
Active12,843 in stock
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Overview

The ATMEGA4808-MFR is a high-performance 8-bit microcontroller from the megaAVR 0-series, featuring 48KB of Flash and 6KB of RAM in a compact 32-VFQFN package. It is specifically designed for applications requiring functional safety and robust operation with features like an Event System and Configurable Custom Logic (CCL).

Why Choose This Part

It offers 6KB of SRAM, which is significantly larger than many standard 8-bit MCUs, and integrates a hardware multiplier for faster signal processing. The Unified Program Debug Interface (UPDI) simplifies the development pinout by requiring only a single pin for programming and debugging.

Applications

Industrial Control Nodes
Utilizes the Event System for core-independent peripheral signaling, ensuring predictable response times in automation tasks.
Functional Safety Systems
Designed with FuSa (Functional Safety) considerations for hardware reliability in safety-critical monitoring.
Battery-Powered Sensing
Leverages power-down modes as low as 0.7 uA (standby) for long-term remote monitoring.
Glue Logic Replacement
The four internal Look-up Tables (LUT) within the CCL allow for hardware-level logic functions without CPU overhead.

Key Specifications

Speed 20MHz
RAM Size 6K x 8
Core Size 8-Bit
EEPROM Size 256 x 8
Peripherals Brown-out Detect/Reset, POR, WDT
Connectivity I2C, SPI, UART/USART
Mounting Type Surface Mount
Number of I/O 23
Core Processor AVR
Package / Case 32-VFQFN Exposed Pad
Data Converters A/D 12x10b
Oscillator Type Internal
Program Memory Size 48KB (24K x 16)
Program Memory Type FLASH
Operating Temperature -40degC ~ 125degC (TA)
Supplier Device Package 32-VFQFN (5x5)
Voltage - Supply (Vcc/Vdd) 1.8V ~ 5.5V

Getting Started

Development is supported by Microchip Studio and the MPLAB X IDE with the XC8 compiler. Hardware evaluation can be performed using the ATMEGA4808-XPRO Xplained Pro evaluation kit or by connecting a Curiosity Nano programmer via the single-pin UPDI interface.

Part of ATmega family » ATMEGA4808

ATMEGA4808 Family

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

Part Number I/O Pins Package ADC/DAC Flash Temp Range Stock
ATMEGA4808-MFR (this part) 23 VFQFN-32 A/D 12x10b 48KB -40degC ~ 125degC .. 12,843
ATMEGA4808-MU (Microchip) 27 VFQFN-32 A/D 12x10b 48KB -40degC ~ 85degC (.. 14,218
ATMEGA4808-XFR 23 SSOP-28 A/D 8x10b 48KB -40degC ~ 125degC .. 4,034
ATMEGA4808-AFR 27 TQFP-32 A/D 12x10b 48KB -40degC ~ 125degC .. 6,857
ATMEGA4808-AUR 27 TQFP-32 A/D 12x10b 48KB -40degC ~ 85degC (.. 2,034
ATMEGA4808-AF 27 TQFP-32 A/D 12x10b 48KB -40degC ~ 125degC .. 601
ATMEGA4808-MF 23 VFQFN-32 A/D 12x10b 48KB -40degC ~ 125degC .. 266

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