ATMEGA645-16AI Atmel, ATMEGA645-16AI Datasheet - Page 76

• Manufacturer Part Number: ATMEGA645-16AI
• Description: IC AVR MCU FLASH 64K 5V 64TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA645-16AI

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: SPI, UART/USART, USI
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 53
• 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): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-TQFP, 64-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

13.3.5
2570M–AVR–04/11
Alternate Functions of Port G
Table 13-13. Overriding Signals for Alternate Functions in PF3:PF0
The alternate pin configuration is as follows:
Table 13-14. Port G Pins Alternate Functions
Note:
The alternate pin configuration is as follows:
• RESET – Port G, Bit 5
RESET: External Reset input. When the RSTDISBL Fuse is programmed ('0'), PG5 will function
as input with pull-up always on.
• T0 – Port G, Bit 4
T0, Timer/Counter0 Counter Source.
• T1 – Port G, Bit 3
T1, Timer/Counter1 Counter Source.
Table 13-14
shown in
Signal
Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
PTOE
DIEOE
DIEOV
DI
AIO
Port Pin
PG5
PG4
PG3
PG2
PG1
PG0
1. Port G, PG5 is input only. Pull-up is always on.
Figure 13-5 on page
See
and
Table 26-3 on page 266
PF3/ADC3
0
0
0
0
0
0
–
0
0
–
ADC3 INPUT
Alternate Function
RESET
T0 (Timer/Counter0 Clock Inpu)
T1 (Timer/Counter1 Clock Input)
-
-
-
Table 13-15
(1)
relates the alternate functions of Port G to the overriding signals
66.
PF2/ADC2
0
0
0
0
0
0
–
0
0
–
ADC2 INPUT
for RSTDISBL fuse.
ATmega325/3250/645/6450
PF1/ADC1
0
0
0
0
0
0
–
0
0
–
ADC1 INPUT
PF0/ADC0
0
0
0
0
0
0
–
0
0
–
ADC0 INPUT
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