ATMEGA649P-AUR Atmel, ATMEGA649P-AUR Datasheet - Page 74
ATMEGA649P-AUR
Manufacturer Part Number
ATMEGA649P-AUR
Description
IC MCU AVR 64KB FLASH 64TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA649P-AUR
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
SPI, UART/USART, USI
Peripherals
Brown-out Detect/Reset, LCD, POR, PWM, WDT
Number Of I /o
54
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
64-TQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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13.3.1
8284A–AVR–10/10
Alternate Functions of Port A
The Port A has an alternate function as COM0:3 and SEG0:3 for the LCD Controller.
Table 13-3.
Table 13-4
shown in
Table 13-4.
Signal Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
PTOE
DIEOE
DIEOV
DI
AIO
ATmega169A/169PA/329A/329PA/649A/649P/3290A/3290PA/6490A/6490P
Port Pin
PA7
PA6
PA5
PA4
PA3
PA2
PA1
PA0
Figure 13-5 on page
and
Port A Pins Alternate Functions
Overriding Signals for Alternate Functions in PA7:PA4
Table 13-5
Alternate Function
SEG (LCD Front Plane 3)
SEG (LCD Front Plane 2)
SEG (LCD Front Plane 1)
SEG (LCD Front Plane 0)
COM (LCD Back Plane 3)
COM (LCD Back Plane 2)
COM (LCD Back Plane 1)
COM (LCD Back Plane 0)
PA7/SEG3
LCDEN
0
LCDEN
0
0
0
–
LCDEN
0
–
LCDSEG
relates the alternate functions of Port A to the overriding signals
72.
PA6/SEG2
LCDEN
0
LCDEN
0
0
0
–
LCDEN
0
–
LCDSEG
PA5/SEG1
LCDEN
0
LCDEN
0
0
0
–
LCDEN
0
–
LCDSEG
PA4/SEG0
LCDEN
0
LCDEN
0
0
0
–
LCDEN
0
–
LCDSEG
74
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