ATMEGA644PA-MU Atmel, ATMEGA644PA-MU Datasheet - Page 510

• Manufacturer Part Number: ATMEGA644PA-MU
• Description: IC MCU 8BIT 64KB FLASH 44VQFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA644PA-MU

• 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): 1.8 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-VQFN Exposed Pad
• Processor Series: ATMEGA64x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 4 KB
• Interface Type: SPI, TWI, UART
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 32
• Operating Supply Voltage: 1.8 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Development Tools By Supplier: ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

28.7.8
8272A–AVR–01/10
Pin Driver Strength
Figure 28-315.ATmega1284: I/O Pin Output Voltage vs. Sink Current (V
Figure 28-316.ATmega1284: I/O Pin Output Voltage vs. Sink Current (V
164A/164PA/324A/324PA/644A/644PA/1284/1284P
1.2
0.8
0.6
0.4
0.2
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
1
0
0
0
0
2
2
4
4
6
6
8
8
I
I
OL
OL
10
10
(mA)
(mA)
12
12
14
14
16
16
CC
CC
18
18
= 2.7V)
= 3V)
20
20
-40 °C
-40 °C
85 °C
25 °C
85 °C
25 °C
510