ATMEGA644V-10AUR Atmel, ATMEGA644V-10AUR Datasheet - Page 19

• Manufacturer Part Number: ATMEGA644V-10AUR
• Description: MCU AVR 64K FLASH 10MHZ 44TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA644V-10AUR

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 10MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Size: 64KB (32K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 2K x 8
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

8. Errata
8.1
8.2
8.3
2593NS–AVR–07/10
Rev. C
Rev. B
Rev. A
• Inaccurate ADC conversion in differential mode with 200× gain
1. Inaccurate ADC conversion in differential mode with 200× gain
•
1. EEPROM read from application code does not work in Lock Bit Mode 3
EEPROM read from application code does not work in Lock Bit Mode 3.
With AVCC < 3.6V, random conversions will be inaccurate. Typical absolute accuracymay
reach 64 LSB.
Problem Fix/Workaround
None
Not sampled
When the Memory Lock Bits LB2 and LB1 are programmed to mode 3, EEPROM read does
not work from the application code.
Problem Fix/Work around
Do not set Lock Bit Protection Mode 3 when the application code needs to read from
EEPROM.
.
ATmega644
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