ATMEGA644P-20AQ Atmel, ATMEGA644P-20AQ Datasheet - Page 399

• Manufacturer Part Number: ATMEGA644P-20AQ
• Description: MCU AVR 64K FLASH 20MHZ 44-TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA644P-20AQ

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 20MHz
• 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): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-TQFP, 44-VQFP
• For Use With: ATSTK600 - DEV KIT FOR AVR/AVR32
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

26.3.8
8011O–AVR–07/10
Pin Driver Strength
Figure 26-115.I/O Pin Sink Current vs. Output Voltage (V
Figure 26-116.I/O Pin Sink Current vs. Output Voltage (V
40
35
30
25
20
15
10
80
70
60
50
40
30
20
10
5
0
0
0
0
0.5
0.5
1
1
V
V
OL
OL
(V)
(V)
ATmega164P/324P/644P
1.5
1.5
CC
CC
= 3V).
= 5V).
2
2
25°C
25°C
2.5
2.5
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