ATMEL ATMEGA644V-10AU 8-bit Microcontroller 64K Bytes Programmable Flash

Features

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WIFI FEATURES

High-performance, Low-power Atmel® AVR® 8-bit Microcontroller

Advanced RISC Architecture

131 Powerful Instructions Most Single-clock Cycle Execution

32 × 8 General Purpose Working Registers

Fully Static Operation

Up to 20 MIPS Throughput at 20MHz

High Endurance Non-volatile Memory segments

64 Kbytes of In-System Self-programmable Flash program memory

2 Kbytes EEPROM

4 Kbytes Internal SRAM

Write/Erase cyles: 10,000 Flash/100,000 EEPROM(1)(3)

Data retention: 20 years at 85°C/100 years at 25°C(2)(3)

Optional Boot Code Section with Independent Lock Bits

In-System Programming by On-chip Boot Program

True Read-While-Write Operation

Programming Lock for Software Security

JTAG (IEEE std. 1149.1 Compliant) Interface

Boundary-scan Capabilities According to the JTAG Standard

Extensive On-chip Debug Support

Programming of Flash, EEPROM, Fuses, and Lock Bits through the JTAG Interface

Peripheral Features

Two 8-bit Timer/Counters with Separate Prescalers and Compare Modes

One 16-bit Timer/Counter with Separate Prescaler, Compare Mode, and Capture

Mode

Real Time Counter with Separate Oscillator

Six PWM Channels

8-channel, 10-bit ADC

Differential mode with selectable gain at 1x, 10x or 200x

Byte-oriented Two-wire Serial Interface

One Programmable Serial USART

Master/Slave SPI Serial Interface

Programmable Watchdog Timer with Separate On-chip Oscillator

On-chip Analog Comparator

Interrupt and Wake-up on Pin Change

Special Microcontroller Features

Power-on Reset and Programmable Brown-out Detection

Internal Calibrated RC Oscillator

External and Internal Interrupt Sources

Six Sleep Modes: Idle, ADC Noise Reduction, Power-save, Power-down, Standby

and Extended Standby I/O and Packages

32 Programmable I/O Lines

40-pin PDIP, 44-lead TQFP, and 44-pad QFN/MLF

Speed Grades

ATmega644V: 0 - 4MHz @ 1.8V - 5.5V, 0 - 10MHz @ 2.7V - 5.5V

ATmega644: 0 - 10MHz @ 2.7V - 5.5V, 0 - 20MHz @ 4.5V - 5.5V

Power Consumption at MHz, 3V, 25⋅C

Active: 240µA @ 1.8V, 1MHz

Power-down Mode: 0.1µA @ 1.8V