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Atmel Electronic Components Datasheet

ATmega644V Datasheet

8-bit Atmel Microcontroller

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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 1MHz, 3V, 25C
– Active: 240µA @ 1.8V, 1MHz
– Power-down Mode: 0.1µA @ 1.8V
8-bit Atmel
Microcontroller
with 64K Bytes
In-System
Programmable
Flash
ATmega644/V
Notes: 1. Worst case temperature. Guaranteed after last write cycle.
2. Failure rate less than 1 ppm.
3. Characterized through accelerated tests.
2593O–AVR–02/12


Atmel Electronic Components Datasheet

ATmega644V Datasheet

8-bit Atmel Microcontroller

No Preview Available !

1. Pin Configurations
Figure 1-1. Pinout ATmega644
(PCINT8/XCK0/T0) PB0
(PCINT9/CLKO/T1) PB1
(PCINT10/INT2/AIN0) PB2
(PCINT11/OC0A/AIN1) PB3
(PCINT12/OC0B/SS) PB4
(PCINT13/MOSI) PB5
(PCINT14/MISO) PB6
(PCINT15/SCK) PB7
RESET
VCC
GND
XTAL2
XTAL1
(PCINT24/RXD0) PD0
(PCINT25/TXD0) PD1
(PCINT26/INT0) PD2
(PCINT27/INT1) PD3
(PCINT28/OC1B) PD4
(PCINT29/OC1A) PD5
(PCINT30/OC2B/ICP) PD6
PDIP
PA0 (ADC0/PCINT0)
PA1 (ADC1/PCINT1)
PA2 (ADC2/PCINT2)
PA3 (ADC3/PCINT3)
PA4 (ADC4/PCINT4)
PA5 (ADC5/PCINT5)
PA6 (ADC6/PCINT6)
PA7 (ADC7/PCINT7)
AREF
GND
AVCC
PC7 (TOSC2/PCINT23)
PC6 (TOSC1/PCINT22)
PC5 (TDI/PCINT21)
PC4 (TDO/PCINT20)
PC3 (TMS/PCINT19)
PC2 (TCK/PCINT18)
PC1 (SDA/PCINT17)
PC0 (SCL/PCINT16)
PD7 (OC2A/PCINT31)
TQFP/QFN/MLF
(PCINT13/MOSI) PB5
(PCINT14/MISO) PB6
(PCINT15/SCK) PB7
RESET
VCC
GND
XTAL2
XTAL1
(PCINT24/RXD0) PD0
(PCINT25/TXD0) PD1
(PCINT26/INT0) PD2
PA4 (ADC4/PCINT4)
PA5 (ADC5/PCINT5)
PA6 (ADC6/PCINT6)
PA7 (ADC7/PCINT7)
AREF
GND
AVCC
PC7 (TOSC2/PCINT23)
PC6 (TOSC1/PCINT22)
PC5 (TDI/PCINT21)
PC4 (TDO/PCINT20)
Note: The large center pad underneath the QFN/MLF package should be soldered to ground on the
board to ensure good mechanical stability.
2 ATmega644
2593O–AVR–02/12


Part Number ATmega644V
Description 8-bit Atmel Microcontroller
Maker ATMEL
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ATmega644V Datasheet PDF






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