Microchip ATMEGA644-20AU, 8 bit AVR, ATMEGA644 Microcontroller, 20 MHz, 64kB FLASH, 44-Pin TQFP

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Förpackningsalternativ:
RS-artikelnummer:
177-3724
Tillv. art.nr:
ATMEGA644-20AU
Tillverkare / varumärke:
Microchip
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Brand

Microchip

Series

ATMEGA644

Product Type

Microcontroller

Package Type

TQFP

Mount Type

Surface

Pin Count

44

Device Core

AVR

Data Bus Width

8bit

Interface Type

USART, SPI

Program Memory Size

64kB

Maximum Clock Frequency

20MHz

RAM Size

4kB

Maximum Supply Voltage

5.5V

Analogue Comparators

1

Number of Programmable I/Os

32

Minimum Operating Temperature

-40°C

Maximum Operating Temperature

85°C

Standards/Approvals

RoHS

Width

10.1 mm

Height

1.05mm

Length

10.1mm

Minimum Supply Voltage

2.7V

ADCs

8 x 10 Bit

Automotive Standard

No

Instruction Set Architecture

RISC

Number of Timers

2

Program Memory Type

FLASH

COO (Country of Origin):
TW

Microchip Technology Microcontroller


The Microchip Technology ATMEGA family type, TQFP package, surface mount, 44-pin CMOS-processor 8-bit microcontroller. It has a maximum voltage rating of 5.5V. The microcontroller operates at a maximum speed of 20MHz and features 64kb ISP flash program memory, 4kb of internal SRAM and 2kb of EEPROM. It has a real-time counter, PWM, 8-channel 10-bit A/D converter and a watchdog timer (WDT). By executing powerful instructions in a single clock cycle, it achieves throughputs approaching 1MIPS per MHz allowing the system to optimize power consumption versus processing speed.

Features and Benefits


• 131 powerful instructions - Most single-clock cycle execution

• 32 x 8 general-purpose working registers

• 32 programmable I/O lines

• External and internal interrupt sources

• Fully static operation

• On-chip 2-cycle multiplier

• Operating temperature ranges between -40°C and 85°C

• Power-on reset and programmable brown-out detection

• Six PWM channels

• Six sleep modes- Idle, ADC noise reduction, power-save, power-down, standby and extended standby

• Three USART with fractional baud rate generator, auto baud, and start-of-frame detection

• Write/Erase cycles- 10,000 flash/100,000 EEPROM

Applications


• Embedded systems

• LCD monitors and TVs

• Mobile PC docking

• PC motherboards

• Portable hub boxes

• Printers and scanners

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