ATMEGA6490A-AU Atmel, ATMEGA6490A-AU Datasheet - Page 65
![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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12.3.4
12.3.5
12.3.6
12.3.7
8284A–AVR–10/10
PCMSK3 – Pin Change Mask Register 3
PCMSK2 – Pin Change Mask Register 2
PCMSK1 – Pin Change Mask Register 1
PCMSK0 – Pin Change Mask Register 0
• Bit 6:0 – PCINT30:24: Pin Change Enable Mask 30...24
Each PCINT30:24-bit selects whether pin change interrupt is enabled on the corresponding I/O
pin. If PCINT30:24 is set and the PCIE3 bit in EIMSK is set, pin change interrupt is enabled on
the corresponding I/O pin. If PCINT30:24 is cleared, pin change interrupt on the corresponding
I/O pin is disabled.
• Bit 7:0 – PCINT23:16: Pin Change Enable Mask 23:16
Each PCINT23:16 bit selects whether pin change interrupt is enabled on the corresponding I/O
pin. If PCINT23:16 is set and the PCIE2 bit in EIMSK is set, pin change interrupt is enabled on
the corresponding I/O pin. If PCINT23:16 is cleared, pin change interrupt on the corresponding
I/O pin is disabled.
Note:
• Bit 7:0 – PCINT15:8: Pin Change Enable Mask 15:8
Each PCINT15:8-bit selects whether pin change interrupt is enabled on the corresponding I/O
pin. If PCINT15:8 is set and the PCIE1 bit in EIMSK is set, pin change interrupt is enabled on the
corresponding I/O pin. If PCINT15:8 is cleared, pin change interrupt on the corresponding I/O
pin is disabled.
• Bit 7:0 – PCINT7:0: Pin Change Enable Mask 7:0
Each PCINT7:0 bit selects whether pin change interrupt is enabled on the corresponding I/O pin.
If PCINT7:0 is set and the PCIE0 bit in EIMSK is set, pin change interrupt is enabled on the cor-
responding I/O pin. If PCINT7:0 is cleared, pin change interrupt on the corresponding I/O pin is
disabled.
Bit
(0x6D)
Read/Write
Initial Value
Bit
(0x73)
Read/Write
Initial Value
Bit
(0x6C)
Read/Write
Initial Value
Bit
(0x6B)
Read/Write
Initial Value
ATmega169A/169PA/329A/329PA/649A/649P/3290A/3290PA/6490A/6490P
1. PCMSK3 and PCMSK2 are only present in ATmega3290A/3290PA/6490A/6490P.
PCINT23
7
PCINT7
R/W
0
PCINT15
R/W
R/W
7
0
R
7
0
7
0
–
PCINT22
R/W
6
PCINT6
0
PCINT30
PCINT14
R/W
R/W
R/W
6
0
6
0
6
0
(1)
(1)
PCINT21
5
PCINT5
R/W
0
PCINT29
PCINT13
R/W
R/W
R/W
5
0
5
0
5
0
PCINT20
4
PCINT4
R/W
0
PCINT28
PCINT12
R/W
R/W
R/W
4
0
4
0
4
0
3
PCINT3
R/W
0
PCINT19
PCINT11
PCINT27
R/W
R/W
R/W
3
0
3
0
3
0
2
PCINT2
R/W
0
PCINT18
PCINT26
PCINT10
R/W
R/W
R/W
2
0
2
0
2
0
1
PCINT1
R/W
0
PCINT17
PCINT25
PCINT9
R/W
R/W
R/W
1
0
1
0
1
0
0
PCINT0
R/W
0
PCINT16
PCINT24
PCINT8
R/W
R/W
R/W
0
0
0
0
0
0
PCMSK0
PCMSK2
PCMSK3
PCMSK1
65
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