ATmega640 Atmel Corporation, ATmega640 Datasheet - Page 96
ATmega640
Manufacturer Part Number
ATmega640
Description
Manufacturer
Atmel Corporation
Specifications of ATmega640
Flash (kbytes)
64 Kbytes
Pin Count
100
Max. Operating Frequency
16 MHz
Cpu
8-bit AVR
# Of Touch Channels
16
Hardware Qtouch Acquisition
No
Max I/o Pins
86
Ext Interrupts
32
Usb Speed
No
Usb Interface
No
Spi
5
Twi (i2c)
1
Uart
4
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
16
Adc Resolution (bits)
10
Adc Speed (ksps)
15
Analog Comparators
1
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
8
Eeprom (bytes)
4096
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
1.8 to 5.5
Operating Voltage (vcc)
1.8 to 5.5
Fpu
No
Mpu / Mmu
no / no
Timers
6
Output Compare Channels
16
Input Capture Channels
4
Pwm Channels
15
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
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13.3.10
2549N–AVR–05/11
Alternate Functions of Port K
Table 13-28. Overriding Signals for Alternate Functions in PJ7:PJ4
Table 13-29. Overriding Signals for Alternate Functions in PJ3:PJ0
The Port K alternate pin configuration is as follows:
Table 13-30. Port K Pins Alternate Functions
Signal Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
PTOE
DIEOE
DIEOV
DI
AIO
Signal Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
PTOE
DIEOE
DIEOV
DI
AIO
Port Pin
PK7
PK6
PK5
PJ7
0
0
0
0
0
0
-
0
0
0
-
PJ3/PCINT12
0
0
0
0
0
0
-
PCINT12·PCIE1
1
PCINT12 INPUT
-
ADC15/PCINT23 (ADC Input Channel 15 or Pin Change Interrupt 23)
ADC14/PCINT22 (ADC Input Channel 14 or Pin Change Interrupt 22)
ADC13/PCINT21 (ADC Input Channel 13 or Pin Change Interrupt 21)
ATmega640/1280/1281/2560/2561
PJ6/ PCINT15
0
0
0
0
0
0
-
PCINT15·PCIE1
1
PCINT15 INPUT
-
PJ2/XCK3/PCINT
11
0
0
XCK3 OUTPUT
ENABLE
1
XCK3 OUTPUT
ENABLE
XCK3
-
PCINT11·PCIE1
1
PCINT11 INPUT
XCK3 INPUT
-
Alternate Function
PJ5/ PCINT14
0
0
0
0
0
0
-
PCINT14·PCIE1
1
PCINT14 INPUT
-
PJ1/TXD3/PCINT
10
TXEN3
0
TXEN3
1
TXEN3
TXD3
-
PCINT10·PCIE1
1
PCINT10 INPUT
-
PJ4/ PCINT13
0
0
0
0
0
0
-
PCINT13·PCIE1
1
PCINT13 INPUT
-
PJ0/RXD3/PCINT
9
RXEN3
PORTJ0·PUD
RXEN3
0
0
0
-
PCINT9·PCIE1
1
PCINT9 INPUT
RXD3
-
96
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