ATMEGA3250P-20AUR Atmel, ATMEGA3250P-20AUR Datasheet - Page 79

• Manufacturer Part Number: ATMEGA3250P-20AUR
• Description: MCU AVR 32K FLASH 20MHZ 100TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA3250P-20AUR

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: SPI, UART/USART, USI
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 69
• Program Memory Size: 32KB (16K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 1K x 8
• Ram Size: 2K 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: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

13.3.5
8023F–AVR–07/09
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 (SEG refers to 100-pin/64-pin pinout)
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 25-3 on page 272
PF3/ADC3
0
0
ADC3 INPUT
0
0
0
0
0
0
–
–
Alternate Function
RESET
T0(Timer/Counter0 Clock Input)
T1(Timer/Counter1 Clock Input)
–
–
–
Table 13-15
(1)
relates the alternate functions of Port G to the overriding signals
69.
PF2/ADC2
0
0
0
0
0
0
–
0
0
–
ADC2 INPUT
for RSTDISBL fuse.
PF1/ADC1
0
0
0
0
0
0
–
0
0
–
ADC1 INPUT
ATmega325P/3250P
PF0/ADC0
0
0
0
0
0
0
–
0
0
–
ADC0 INPUT
79