ATMEGA645A-MU Atmel, ATMEGA645A-MU Datasheet - Page 331

• Manufacturer Part Number: ATMEGA645A-MU
• Description: IC MCU AVR 64K FLASH 64QFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA645A-MU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: SPI, UART/USART, USI
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 54
• 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: 64-TQFP Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table 28-1.
Note:
8285B–AVR–03/11
Symbol
R
R
V
REF
AIN
INT
1. Voltage difference between channels.
Parameter
Internal Voltage Reference
Reference Input Resistance
Analog Input Resistance
ADC Characteristics (Continued)
ATmega165A/165PA/325A/325PA/3250A/3250PA/6
Condition
Min
1.0
Typ
100
1.1
32
Max
1.2
Units
MΩ
kΩ
V
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