ATMEGA644P-A15MZ Atmel, ATMEGA644P-A15MZ Datasheet - Page 346

• Manufacturer Part Number: ATMEGA644P-A15MZ
• Description: MCU AVR 64KB FLASH 16MHZ 44QFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA644P-A15MZ

• Package / Case: 44-VQFN Exposed Pad
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Speed: 16MHz
• Number Of I /o: 32
• Eeprom Size: 2K x 8
• Core Processor: AVR
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Program Memory Size: 64KB (64K x 8)
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Connectivity: I²C, SPI, UART/USART
• Core Size: 8-Bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

27.4
346
Pin Driver Strength
ATmega164P/324P/644P
Figure 27-15. I/O Pin Output Voltage vs. Source Current (Vcc = 5V)
Figure 27-16. I/O Pin Output Voltage vs. Source Current (Vcc = 3.0V)
5.1
4.9
4.8
4.7
4.6
4.5
4.4
4.3
3.1
2.9
2.7
2.5
2.3
2.1
1.9
1.7
1.5
5
0
0
2
2
4
4
6
6
VCC 5V, Load current up to 20 mA
VCC 3V, Load current up to 20 mA
8
Load current (mA)
8
Load current (mA)
10
10
VOH
VOH
12
12
14
14
16
16
18
18
20
20
7674F–AVR–09/09
125
85
25
-45
125
85
25
-45