ATmega6450 Atmel Corporation, ATmega6450 Datasheet - Page 71

• Manufacturer Part Number: ATmega6450
• Manufacturer: Atmel Corporation

Specifications of ATmega6450

• Flash (kbytes): 64 Kbytes
• Pin Count: 100
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 69
• Ext Interrupts: 25
• Usb Speed: No
• Usb Interface: No
• Spi: 2
• Twi (i2c): 1
• Uart: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 4
• Eeprom (bytes): 2048
• 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: 3
• Output Compare Channels: 4
• Input Capture Channels: 1
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

14.3.2
2570N–AVR–05/11
Alternate Functions of Port D
The Port D pins with alternate functions are shown in
Table 14-6.
The alternate pin configuration is as follows:
• INT0 – Port D, Bit 1
INT0, External Interrupt Source 0. The PD1 pin can serve as an external interrupt source to the
MCU.
• ICP1 – Port D, Bit 0
ICP1 – Input Capture pin1: The PD0 pin can act as an Input Capture pin for Timer/Counter1.
Table 14-7
5 on page
Table 14-7.
Signal
Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
PTOE
DIEOE
DIEOV
DI
AIO
Port Pin
PD7
PD6
PD5
PD4
PD3
PD2
PD1
PD0
66.
relates the alternate functions of Port D to the overriding signals shown in
Port D Pins Alternate Functions
Overriding Signals for Alternate Functions in PD3:PD0
Alternate Function
-
-
-
-
-
-
INT0 (External Interrupt0 Input)
ICP1 (Timer/Counter1 Input Capture pin)
PD3
0
0
0
0
0
0
–
0
0
–
–
PD2
0
0
0
0
0
0
–
0
0
–
–
ATmega325/3250/645/6450
PD1/INT0
0
0
0
0
0
0
–
INT0 ENABLE
INT0 ENABLE
INT0 INPUT
–
Table
14-6.
PD0/ICP1
0
0
0
0
0
0
–
0
0
ICP1 INPUT
–
Figure 14-
71