ATMEGA644P-20PQ Atmel, ATMEGA644P-20PQ Datasheet - Page 400

• Manufacturer Part Number: ATMEGA644P-20PQ
• Description: MCU AVR 64K FLASH 20MHZ 40-PDIP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA644P-20PQ

• 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: 40-DIP (0.600", 15.24mm)
• For Use With: ATSTK600 - DEV KIT FOR AVR/AVR32
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

8011O–AVR–07/10
Figure 26-117.I/O Pin Source Current vs. Output Voltage (V
Figure 26-118.I/O Pin Pin Source Current vs. Output Voltage (V
35
30
25
20
15
10
70
60
50
40
30
20
10
5
0
0
0
0
0.5
1
1
2
1.5
V
V
OH
OH
3
(V)
(V)
ATmega164P/324P/644P
25°C
2
4
CC
2.5
= 3V).
CC
25°C
= 5V).
5
3
3.5
6
400