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ATmega169A/PA/329A/PA/649A/P/3290A/PA/6490A/P [SUMMARY]

8284ES–AVR–02/2013

The Atmel ATmega169A/169PA/329A/329PA/3290A/3290PA/649A/649P/6490A/6490P provides the following fea-

tures: 16K/32K/64K bytes of In-System Programmable Flash with Read-While-Write capabilities, 512/1K/2K bytes

EEPROM, 1K/2K/4K byte SRAM, 54/69 general purpose I/O lines, 32 general purpose working registers, a JTAG

interface for Boundary-scan, On-chip Debugging support and programming, a complete On-chip LCD controller

with internal contrast control, three flexible Timer/Counters with compare modes, internal and external interrupts, a

serial programmable USART, Universal Serial Interface with Start Condition Detector, an 8-channel, 10-bit ADC, a

programmable Watchdog Timer with internal Oscillator, an SPI serial port, and five software selectable power sav-

ing modes. The Idle mode stops the CPU while allowing the SRAM, Timer/Counters, SPI port, and interrupt system

to continue functioning. The Power-down mode saves the register contents but freezes the Oscillator, disabling all

other chip functions until the next interrupt or hardware reset. In Power-save mode, the asynchronous timer and

the LCD controller continues to run, allowing the user to maintain a timer base and operate the LCD display while

the rest of the device is sleeping. The ADC Noise Reduction mode stops the CPU and all I/O modules except asyn-

chronous timer, LCD controller and ADC, to minimize switching noise during ADC conversions. In Standby mode,

the XTAL/resonator Oscillator is running while the rest of the device is sleeping. This allows very fast start-up com-

bined with low-power consumption.

Atmel offers the QTouch library for embedding capacitive touch buttons, sliders and wheels functionality into AVR

microcontrollers. The patented charge-transfer signal acquisition offers robust sensing and includes fully

detection of key events. The easy-to-use QTouch Suite toolchain allows you to explore, develop and debug your

own touch applications.

The device is manufactured using the Atmel high density non-volatile memory technology. The On-chip In-System

re-Programmable (ISP) Flash allows the program memory to be reprogrammed In-System through an SPI serial

interface, by a conventional non-volatile memory programmer, or by an On-chip Boot program running on the AVR

core. The Boot program can use any interface to download the application program in the Application Flash mem-

ory. Software in the Boot Flash section will continue to run while the Application Flash section is updated, providing

true Read-While-Write operation.

By combining an 8-bit RISC CPU with In-System Self-Programmable Flash on a monolithic chip, the

ATmega169A/169PA/329A/329PA/3290A/3290PA/649A/649P/6490A/6490P is a powerful microcontroller that pro-

vides a highly flexible and cost effective solution to many embedded control applications.

The ATmega169A/169PA/329A/329PA/3290A/3290PA/649A/649P/6490A/6490P AVR is supported with a full

suite of program and system development tools including: C Compilers, Macro Assemblers, Program Debug-

ger/Simulators, In-Circuit Emulators, and Evaluation kits.