ATMEGA6490A-AU Atmel, ATMEGA6490A-AU Datasheet - Page 81
![IC MCU AVR 64K FLASH 100TQFP](/photos/6/70/67048/313-100-tqfp_sml.jpg)
ATMEGA6490A-AU
Manufacturer Part Number
ATMEGA6490A-AU
Description
IC MCU AVR 64K FLASH 100TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA6490A-AU
Core Processor
AVR
Core Size
8-Bit
Speed
20MHz
Connectivity
SPI, UART/USART, USI
Peripherals
Brown-out Detect/Reset, LCD, POR, PWM, WDT
Number Of I /o
69
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
100-TFQFP
Processor Series
ATmega
Core
AVR
Data Bus Width
8 bit
Data Ram Size
4 KB
Interface Type
SPI, USART
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
69
Number Of Timers
3
Operating Supply Voltage
3.3 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Operating Temperature Range
- 40 C to + 85 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATMEGA6490A-AU
Manufacturer:
Atmel
Quantity:
1 250
Company:
Part Number:
ATMEGA6490A-AUR
Manufacturer:
Maxim
Quantity:
43
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13.3.5
8284A–AVR–10/10
Alternate Functions of Port E
The Port E pins with alternate functions are shown in
Table 13-15. Port E Pins Alternate Functions
• PCINT7 – Port E, Bit 7
PCINT7, Pin Change Interrupt Source 7: The PE7 pin can serve as an external interrupt source.
CLKO, Divided System Clock: The divided system clock can be output on the PE7 pin. The
divided system clock will be output if the CKOUT Fuse is programmed, regardless of the
PORTE7 and DDE7 settings. It will also be output during reset.
• DO/PCINT6 – Port E, Bit 6
DO, Universal Serial Interface Data output.
PCINT6, Pin Change Interrupt Source 6: The PE6 pin can serve as an external interrupt source.
• DI/SDA/PCINT5 – Port E, Bit 5
DI, Universal Serial Interface Data input.
SDA, Two-wire Serial Interface Data:
PCINT5, Pin Change Interrupt Source 5: The PE5 pin can serve as an external interrupt source.
• USCK/SCL/PCINT4 – Port E, Bit 4
USCK, Universal Serial Interface Clock.
SCL, Two-wire Serial Interface Clock.
PCINT4, Pin Change Interrupt Source 4: The PE4 pin can serve as an external interrupt source.
• AIN1/PCINT3 – Port E, Bit 3
AIN1 – Analog Comparator Negative input. This pin is directly connected to the negative input of
the Analog Comparator.
PCINT3, Pin Change Interrupt Source 3: The PE3 pin can serve as an external interrupt source.
ATmega169A/169PA/329A/329PA/649A/649P/3290A/3290PA/6490A/6490P
Port Pin
PE7
PE6
PE5
PE4
PE3
PE2
PE1
PE0
Alternate Function
PCINT7 (Pin Change Interrupt7)
CLKO (Divided System Clock)
DO/PCINT6 (USI Data Output or Pin Change Interrupt6)
DI/SDA/PCINT5 (USI Data Input or TWI Serial DAta or Pin Change Interrupt5)
USCK/SCL/PCINT4 (USART0 External Clock Input/Output or TWI Serial Clock or Pin
Change Interrupt4)
AIN1/PCINT3 (Analog Comparator Negative Input or Pin Change Interrupt3)
XCK/AIN0/ PCINT2 (USART0 External Clock or Analog Comparator Positive Input or
Pin Change Interrupt2)
TXD/PCINT1 (USART0 Transmit Pin or Pin Change Interrupt1)
RXD/PCINT0 (USART0 Receive Pin or Pin Change Interrupt0)
Table
13-15.
81
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