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

RS Stock No.:: 177-3449
Mfr. Part No.:: ATMEGA644-20AU
Brand:: Microchip

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

580 In stock - FREE next working day delivery available

Price Each (In a Tray of 160)

£4.046

(exc. VAT)

£4.855

(inc. VAT)

Units	Per unit	Per Tray*
160 +	£4.046	£647.36

*price indicative

RS Stock No.:: 177-3449
Mfr. Part No.:: ATMEGA644-20AU
Brand:: Microchip

Technical Reference

Datasheet

Legislation and Compliance

COO (Country of Origin):: TW

Product Details

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 ´ 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

Specifications

Attribute	Value
Family Name	ATmega
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	1
Number of CAN Channels	0
Number of USART Channels	1
Typical Operating Supply Voltage	5.5 (Maximum) V
Number of I2C Channels	1
Number of UART Channels	1
Number of LIN Channels	0
Length	10.1mm
Minimum Operating Temperature	-40 °C
Number of ADC Units	1
Dimensions	10.1 x 10.1 x 1.05mm
Number of Ethernet Channels	0
Maximum Number of Ethernet Channels	0
Pulse Width Modulation	1 (6 Channel)
Program Memory Type	Flash
Maximum Operating Temperature	+85 °C
Number of PCI Channels	0
Height	1.05mm
Instruction Set Architecture	RISC
ADCs	8 x 10 bit
Width	10.1mm