ATMEGA644PV-20AU Atmel, ATMEGA644PV-20AU Datasheet - Page 81
![IC MCU AVR 64K FLASH 44-TQFP](/photos/6/70/67042/313-44-tqfp_sml.jpg)
ATMEGA644PV-20AU
Manufacturer Part Number
ATMEGA644PV-20AU
Description
IC MCU AVR 64K FLASH 44-TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA644PV-20AU
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-TQFP, 44-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Part Number
Manufacturer
Quantity
Price
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8011O–AVR–07/10
Table 11-4 on page 81
overriding signals shown in
Table 11-4.
Table 11-5.
Signal
Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
DIEOE
DIEOV
DI
AIO
Signal
Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
DIEOE
DIEOV
DI
AIO
PA7/ADC7/
PCINT7
0
0
0
0
0
0
PCINT7 • PCIE0 +
ADC7D
PCINT7 • PCIE0
PCINT7 INPUT
ADC7 INPUT
PA3/ADC3/
PCINT3
0
0
0
0
0
0
PCINT3 • PCIE0 +
ADC3D
PCINT3 • PCIE0
PCINT3 INPUT
ADC3 INPUT
Overriding Signals for Alternate Functions in PA7:PA4
Overriding Signals for Alternate Functions in PA3:PA0
and
Table 11-5 on page 81
Figure 11-5 on page
PCINT6 • PCIE0
ADC6 INPUT
PA6/ADC6/
PCINT6
0
0
0
0
0
0
PCINT6 • PCIE0 +
ADC6D
PCINT6 INPUT
PA2/ADC2/
PCINT2
0
0
0
0
0
0
PCINT2 • PCIE0 +
ADC2D
PCINT2 • PCIE0
PCINT2 INPUT
ADC2 INPUT
78.
ATmega164P/324P/644P
relates the alternate functions of Port A to the
PA5/ADC5/
PCINT5
0
0
0
0
0
0
PCINT5 • PCIE0 +
ADC5D
PCINT5 • PCIE0
PCINT5 INPUT
ADC5 INPUT
PA1/ADC1/
PCINT1
0
0
0
0
0
0
PCINT1 • PCIE0 +
ADC1D
PCINT1 • PCIE0
PCINT1 INPUT
ADC1 INPUT
PCINT4 • PCIE0
PCINT4 INPUT
PA4/ADC4/
PCINT4
0
0
0
0
0
0
PCINT4 • PCIE0 +
ADC4D
ADC4 INPUT
PA0/ADC0/
PCINT0
0
0
0
0
0
0
PCINT0 • PCIE0 +
ADC0D
PCINT0 • PCIE0
PCINT0 INPUT
ADC0 INPUT
81
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