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Manufacturer Part Number: atmega644
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ATMEGA644P-20PQ
 Microchip Technology Inc 		$1.6661 Yes Obsolete 8 20 MHz 65536 4096 AVR RISC 20 MHz 32 3 NO 5 V MICROCONTROLLER, RISC CMOS OPERATES AT 2.7V MINIMUM SUPPLY AT 10 MHz YES YES NO FIXED POINT YES NO YES 3 2 8 8 YES FLASH 5.5 V 4.5 V INDUSTRIAL R-PDIP-T40 105 °C -40 °C TS 16949 40 PLASTIC/EPOXY DIP DIP40,.6 RECTANGULAR IN-LINE THROUGH-HOLE 2.54 mm DUAL 4.826 mm 15.24 mm 52.324 mm MICROCHIP TECHNOLOGY INC DIP-40 compliant EAR99 8542.31.00.01 Microchip
ATMEGA644V-10AUR
 Microchip Technology Inc 		$1.8529 Yes Yes Not Recommended 8 10 MHz 65536 4096 AVR RISC 10 MHz 32 3 YES 3 V MICROCONTROLLER, RISC CMOS ALSO OPERATES AT 1.8V SUPPLY AT 4 MHZ YES NO NO FIXED POINT YES NO YES 35 1 8 8 YES FLASH 500 µA 5.5 V 3 V INDUSTRIAL S-PQFP-G44 Not Qualified e3 3 85 °C -40 °C 44 PLASTIC/EPOXY TQFP TQFP44,.39SQ,31 SQUARE FLATPACK, THIN PROFILE MATTE TIN GULL WING 800 µm QUAD 1.2 mm 10 mm 10 mm MICROCHIP TECHNOLOGY INC 10 X 10 MM, 1 MM HEIGHT, 0.80 MM PITCH, GREEN, PLASTIC, MS-026ACB, TQFP-44 compliant EAR99 8542.31.00.01 Microchip
ATMEGA644V-10MUR
 Microchip Technology Inc 		$2.0888 Yes Yes Not Recommended 8 10 MHz 65536 4096 AVR RISC 10 MHz 32 3 YES 3 V MICROCONTROLLER, RISC CMOS ALSO OPERATES AT 1.8V SUPPLY AT 4 MHZ YES NO NO FIXED POINT YES NO YES 35 1 8 8 YES FLASH 500 µA 5.5 V 3 V INDUSTRIAL S-PQCC-N44 Not Qualified e3 1 85 °C -40 °C 44 PLASTIC/EPOXY HVQCCN LCC44,.28SQ,20 SQUARE CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE Matte Tin (Sn) NO LEAD 500 µm QUAD 1 mm 7 mm 7 mm MICROCHIP TECHNOLOGY INC 7 X 7 MM, 1 MM HEIGHT, 0.50 MM PITCH, GREEN, MO-220VKKD-3, MLF-44 compliant EAR99 8542.31.00.01
ATMEGA644RFR2-ZF
 Microchip Technology Inc 		$2.1071 Yes Yes Active 8 16 MHz 65536 8192 AVR RISC 16 MHz 33 YES 3 V MICROCONTROLLER, RISC CMOS NO NO YES 8 YES FLASH 2 mA 5.5 V 1.8 V AUTOMOTIVE S-XQCC-N48 Not Qualified 125 °C -40 °C 48 UNSPECIFIED HVQCCN LCC48,.27SQ,20 SQUARE CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE NO LEAD 500 µm QUAD 900 µm 7 mm 7 mm MICROCHIP TECHNOLOGY INC 7 X 7 MM, 0.90 MM HEIGHT, 0.50 MM PITCH, GREEN, MO-220VKKD-4, VQFN-48 compliant EAR99 8542.31.00.01 Microchip
ATMEGA644P-20MQ
 Microchip Technology Inc 		$2.1348 Yes Not Recommended 8 20 MHz 65536 4096 AVR RISC 20 MHz 32 3 YES 5 V MICROCONTROLLER, RISC CMOS OPERATES AT 2.7V MINIMUM SUPPLY AT 10 MHz YES YES NO FIXED POINT YES NO YES 3 2 8 8 YES FLASH 5.5 V 4.5 V INDUSTRIAL S-PQCC-N44 105 °C -40 °C TS 16949 44 PLASTIC/EPOXY HVQCCN LCC44,.28SQ,20 SQUARE CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE NO LEAD 500 µm QUAD 1 mm 7 mm 7 mm MICROCHIP TECHNOLOGY INC VQFN-44 compliant EAR99 8542.31.00.01 Microchip
ATMEGA644PV-10MQ
 Microchip Technology Inc 		$2.1348 Yes Not Recommended 8 10 MHz 65536 4096 AVR RISC 10 MHz 32 3 YES 3 V MICROCONTROLLER, RISC CMOS OPERATES AT 1.8V MINIMUM SUPPLY AT 4 MHz YES YES NO FIXED POINT YES NO YES 3 2 8 8 YES FLASH 5.5 V 2.7 V INDUSTRIAL S-PQCC-N44 105 °C -40 °C TS 16949 44 PLASTIC/EPOXY HVQCCN LCC44,.28SQ,20 SQUARE CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE NO LEAD 500 µm QUAD 1 mm 7 mm 7 mm MICROCHIP TECHNOLOGY INC VQFN-44 compliant EAR99 8542.31.00.01
ATMEGA644RFR2-ZU
 Microchip Technology Inc 		$2.1416 Yes Yes Active 8 16 MHz 65536 8192 AVR RISC 16 MHz 33 YES 3 V MICROCONTROLLER, RISC CMOS NO NO YES 8 YES FLASH 2 mA 5.5 V 3 V INDUSTRIAL S-XQCC-N48 Not Qualified 85 °C -40 °C 48 UNSPECIFIED HVQCCN LCC48,.27SQ,20 SQUARE CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE NO LEAD 500 µm QUAD 900 µm 7 mm 7 mm MICROCHIP TECHNOLOGY INC 7 X 7 MM, 0.90 MM HEIGHT, 0.50 MM PITCH, GREEN, MO-220VKKD-4, VQFN-48 compliant EAR99 8542.31.00.01 Microchip
ATMEGA644PV-10MQR
 Microchip Technology Inc 		$2.1902 Yes Not Recommended 8 10 MHz 65536 4096 AVR RISC 10 MHz 32 3 YES 3 V MICROCONTROLLER, RISC CMOS OPERATES AT 1.8V MINIMUM SUPPLY AT 4 MHz YES YES NO FIXED POINT YES NO YES 3 2 8 8 YES FLASH 5.5 V 2.7 V INDUSTRIAL S-PQCC-N44 105 °C -40 °C TS 16949 44 PLASTIC/EPOXY HVQCCN LCC44,.28SQ,20 SQUARE CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE NO LEAD 500 µm QUAD 1 mm 7 mm 7 mm MICROCHIP TECHNOLOGY INC VQFN-44 compliant EAR99 8542.31.00.01
ATMEGA644PV-10PQ
 Microchip Technology Inc 		$2.2310 Yes Not Recommended 8 10 MHz 65536 4096 AVR RISC 10 MHz 32 3 NO 3 V MICROCONTROLLER, RISC CMOS OPERATES AT 1.8V MINIMUM SUPPLY AT 4 MHz YES YES NO FIXED POINT YES NO YES 3 2 8 8 YES FLASH 5.5 V 2.7 V INDUSTRIAL R-PDIP-T40 105 °C -40 °C TS 16949 40 PLASTIC/EPOXY DIP DIP40,.6 RECTANGULAR IN-LINE THROUGH-HOLE 2.54 mm DUAL 4.826 mm 15.24 mm 52.324 mm MICROCHIP TECHNOLOGY INC DIP-40 compliant EAR99 8542.31.00.01 Microchip
ATMEGA644PA-MNR
 Microchip Technology Inc 		$2.3032 Yes Yes Active 8 20 MHz 65536 4096 4096 AVR RISC 20 MHz 32 3 YES 5 V MICROCONTROLLER, RISC CMOS IT ALSO OPERATES FROM 1.8V TO 5.5 V AT 4 MHZ YES NO NO FIXED POINT YES NO YES 3 2 8 8 YES FLASH 9 mA 5.5 V 5 V INDUSTRIAL S-PQCC-N44 e3 105 °C -40 °C 44 PLASTIC/EPOXY HVQCCN LCC44,.28SQ,20 SQUARE CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE MATTE TIN NO LEAD 500 µm QUAD 1 mm 7 mm 7 mm MICROCHIP TECHNOLOGY INC VQFN-44 compliant EAR99 8542.31.00.01 Microchip
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