ATMEGA644-20AU

Symbol Micros: ATM644-20au
Contractor Symbol:
Case : TQFP44
64kB-FL 4kB-RAM 2kB-EE 32I/O 2.7÷5.5V 20MHz 3xtimer 8A/D UART SPI TWI -40÷85°C Replaced by: ATMEGA644A-AU
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Parameters
Manufacturer: MICROCHIP
Architecture: 8-bit
FLASH memory: 64kB
RAM memory: 4kB
EEPROM memory: 2kB
Number of I/O: 32
Supply voltage range: 2,7V~5,5V
Manufacturer:: Microchip Manufacturer part number: ATMEGA644-20AU RoHS Case style: TQFP44 Datasheet
In stock:
17 pcs.
Quantity of pcs. 1+ 3+ 10+ 30+ 80+
Net price (EUR) 5,8466 5,3791 5,0925 4,9469 4,8717
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Packaging:
80
Manufacturer:: Microchip Manufacturer part number: ATMEGA644-20AUR Case style: TQFP44  
External warehouse:
4000 pcs.
Quantity of pcs. 2000+ (Need a significantly larger quantity? Ask for price).
Net price (EUR) 6,8435
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Packaging:
2000
Delivery within 4-7 business days.
Minimum order amount
must exceed 20 Euro.
Manufacturer:: Microchip Manufacturer part number: ATMEGA644-20AU Case style: TQFP44  
External warehouse:
220 pcs.
Quantity of pcs. 5+ (Need a significantly larger quantity? Ask for price).
Net price (EUR) 5,0097
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Packaging:
5
Delivery within 4-7 business days.
Minimum order amount
must exceed 20 Euro.
Manufacturer:: Microchip Manufacturer part number: ATMEGA644-20AU Case style: TQFP44  
External warehouse:
70 pcs.
Quantity of pcs. 1+ (Need a significantly larger quantity? Ask for price).
Net price (EUR) 6,4803
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Packaging:
160
Delivery within 4-7 business days.
Minimum order amount
must exceed 20 Euro.
Manufacturer: MICROCHIP
Architecture: 8-bit
FLASH memory: 64kB
RAM memory: 4kB
EEPROM memory: 2kB
Number of I/O: 32
Supply voltage range: 2,7V~5,5V
Frequency: 20,000MHz
ADC: YES
DAC: NO
UART/USART interface: YES
SPI interface: YES
TWI (I2C) interface: YES
CAN interface: NO
ETHERNET interface: NO
USB interface: NO
Encryption: NO
Operating temperature (range): -40°C ~ 85°C
Case: TQFP44
Detailed description

The chip is made using picoPower technology – the same functionality with lower power consumption. An excellent solution for battery-powered devices.

Key features:
* available program and data memory:
- 64 kB of built-in Flash memory programmable on the chip;
- 2 kB EEPROM;
- 4 kB RAM;
* 32 input/output lines;
* peripheral modules:
- timer/counter modules: two 8-bit and one 16-bit;
- 8-channel 10-bit analog-to-digital converter;
- real-time clock (RTC);
- 6-channel PWM mode;
- analog comparator;
- two fully duplex USART modules
- programmable watchdog with an integrated internal oscillator;
- master/slave serial SPI interface;
- TWI serial interface – compatible with I²C™;
* supply voltage: 2.7V~5.5 V;
* operating temperature: -40°C ~ 85°C;
* for picoPower chips: Power Save mode – power consumption of about 600nA (with the RTC enabled).