Microchip, 8bit AVR, ATmega644A Microcontroller, 20MHz, 64 kB Flash, 44-Pin TQFP

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Kr.55 60 

(exc. VAT)

Kr.69 50 

(inc. VAT)

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1 - 24Kr. 55,60
25 - 99Kr. 54,00
100 +Kr. 51,71

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Packaging Options:
RS Stock No.:
131-0316
Mfr. Part No.:
ATMEGA644A-AU
Brand:
Microchip
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Brand

Microchip

Family Name

ATmega644A

Package Type

TQFP

Mounting Type

Surface Mount

Pin Count

44

Device Core

AVR

Data Bus Width

8bit

Program Memory Size

64 kB

Maximum Frequency

20MHz

RAM Size

4 kB

USB Channels

0

Number of PWM Units

1

Number of SPI Channels

3

Number of UART Channels

2

Number of USART Channels

2

Number of I2C Channels

1

Typical Operating Supply Voltage

1.8 → 5.5 V

Number of CAN Channels

0

Number of PCI Channels

0

Number of Ethernet Channels

0

Number of LIN Channels

0

Height

1.05mm

Width

10.1mm

Dimensions

10.1 x 10.1 x 1.05mm

Pulse Width Modulation

1 (6 Channel)

Number of ADC Units

1

Length

10.1mm

Maximum Operating Temperature

+85 °C

Minimum Operating Temperature

-40 °C

Program Memory Type

Flash

Maximum Number of Ethernet Channels

0

ADCs

8 x 10 bit

Instruction Set Architecture

RISC

The Microchip ATmega48PA CMOS 8-bit microcontroller based on the AVR enhanced RISC architecture. It operates on 1.8V to 5.5V voltage range. The AVR core combines a rich instruction set with 32 general purpose working registers. It features 64Kbytes of in-system programmable flash with read-while-write capabilities, 2Kbytes EEPROM, 4Kbytes SRAM, 32 general purpose I/O lines, 32 general purpose working registers, a real-time counter, three flexible timer/counters with compare modes and PWM, two USARTs, a byte-oriented Two-Wire serial interface, an 8-channel 10-bit A/D converter with optional differential input stage with programmable gain, programmable watchdog timer with internal oscillator, SPI serial port, a JTAG (IEEE® 1149.1 compliant) test interface for on-chip debugging and programming, and six software selectable power saving modes.

Up to 20MIPS throughput at 20MHz

On-chip 2-cycle multiplier

Programming Lock for Software Security

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

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

Real Time Counter with Separate Oscillator

Master/Slave SPI Serial Interface

Programmable Watchdog Timer with Separate On-chip Oscillator

On-chip Analog Comparator

Interrupt and Wake-up on Pin Change

Power-on Reset and Programmable Brown-out Detection

Internal Calibrated RC Oscillator

External and Internal Interrupt Sources

44-lead TQFP package

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