ATMEGA808-AU

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ATMEGA808-AU

+BOM

IC MCU 8BIT 8KB FLASH 32TQFP

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Specifications

Attribute Value
Package Tray
Series megaAVR® 0, Functional Safety (FuSa)
ProductStatus Active
CoreProcessor AVR
CoreSize 8-Bit
Speed 20MHz
Connectivity I²C, SPI, UART/USART
Peripherals Brown-out Detect/Reset, POR, WDT
NumberofI/O 27
ProgramMemorySize 8KB (8K x 8)
ProgramMemoryType FLASH
EEPROMSize 256 x 8
RAMSize 1K x 8
Voltage-Supply(Vcc/Vdd) 1.8V ~ 5.5V
DataConverters A/D 12x10b
OscillatorType Internal
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
Package/Case 32-TQFP

Overview

Description

The ATmega808-AU is an 8-bit microcontroller from Microchip’s AVR family, based on the AVR® enhanced RISC architecture. It features 8KB Flash memory, 1KB SRAM, and 512B EEPROM, making it suitable for embedded applications.
Key highlights:
- Clock speed: Up to 20MHz.
- Peripherals: 12-bit ADC, USART, SPI, I²C, and multiple timers.
- GPIO: 28 programmable I/O pins.
- Low-power modes: Ideal for battery-operated devices.
- Package: 32-pin TQFP (AU suffix).
It supports Core Independent Peripherals (CIPs), reducing CPU load, and is programmable via UPDI (Unified Program and Debug Interface). The ATmega808-AU is commonly used in automation, IoT, and consumer electronics.
For development, Microchip provides MPLAB® X IDE and Atmel Studio support. Its balance of performance, power efficiency, and integration makes it a versatile choice for cost-sensitive designs.

Equivalent

Equivalent products to the ATMEGA808-AU include:
- ATMEGA808-MU (QFN package variant).
- ATMEGA809-AU (similar specs, more flash).
- ATMEGA1608/1609 (higher memory variants).
- ATTINY817 (lower-cost alternative, fewer features).
These are pin-compatible or functionally similar alternatives within Microchip's 8-bit AVR lineup. For exact replacements, verify datasheets for specific requirements.

Application

The ATMEGA808-AU is a versatile 8-bit microcontroller from Microchip, commonly used in:
- Embedded Systems: IoT devices, sensors, and automation.
- Consumer Electronics: Smart home gadgets, remote controls.
- Industrial Control: Motor control, monitoring systems.
- Automotive: Basic control units, lighting systems.
- DIY & Hobby Projects: Arduino-compatible applications.
It features 8KB Flash, 1KB SRAM, 12 I/O pins, and supports UART, SPI, I²C, making it suitable for cost-sensitive, low-power applications.

Package

The ATMEGA808-AU comes in a TQFP-32 package. This is a 32-pin Thin Quad Flat Package with a 7x7mm body size and 0.8mm pin pitch, suitable for surface-mount applications. It provides a compact footprint while maintaining good thermal and electrical performance.

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