ATMEGA3290P-20AUR Atmel, ATMEGA3290P-20AUR Datasheet - Page 72
ATMEGA3290P-20AUR
Manufacturer Part Number
ATMEGA3290P-20AUR
Description
MCU AVR 32K FLASH 20MHZ 64TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA3290P-20AUR
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
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
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Part Number
Manufacturer
Quantity
Price
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13.3.2
8021G–AVR–03/11
Alternate Functions of Port B
Table 13-5.
The Port B pins with alternate functions are shown in
Table 13-6.
The alternate pin configuration is as follows:
• OC2A/PCINT15, Bit 7
OC2, Output Compare Match A output: The PB7 pin can serve as an external output for the
Timer/Counter2 Output Compare A. The pin has to be configured as an output (DDB7 set (one))
to serve this function. The OC2A pin is also the output pin for the PWM mode timer function.
PCINT15, Pin Change Interrupt source 15: The PB7 pin can serve as an external interrupt
source.
Signal Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
PTOE
DIEOE
DIEOV
DI
AIO
Port Pin
PB7
PB6
PB5
PB4
PB3
PB2
PB1
PB0
Overriding Signals for Alternate Functions in PA3:PA0
Port B Pins Alternate Functions
PA3/COM3
LCDEN •
(LCDMUX)
0
LCDEN •
(LCDMUX)
0
0
0
–
LCDEN •
(LCDMUX)
0
–
COM3
Alternate Functions
OC2A/PCINT15 (Output Compare and PWM Output A for Timer/Counter2 or Pin
Change Interrupt15).
OC1B/PCINT14 (Output Compare and PWM Output B for Timer/Counter1 or Pin
Change Interrupt14).
OC1A/PCINT13 (Output Compare and PWM Output A for Timer/Counter1 or Pin
Change Interrupt13).
OC0A/PCINT12 (Output Compare and PWM Output A for Timer/Counter0 or Pin
Change Interrupt12).
MISO/PCINT11 (SPI Bus Master Input/Slave Output or Pin Change Interrupt11).
MOSI/PCINT10 (SPI Bus Master Output/Slave Input or Pin Change Interrupt10).
SCK/PCINT9 (SPI Bus Serial Clock or Pin Change Interrupt9).
SS/PCINT8 (SPI Slave Select input or Pin Change Interrupt8).
PA2/COM2
LCDEN •
(LCDMUX)
0
LCDEN •
(LCDMUX)
0
0
0
–
LCDEN •
(LCDMUX)
0
–
COM2
Table
PA1/COM1
LCDEN •
(LCDMUX)
0
LCDEN •
(LCDMUX)
0
0
0
–
LCDEN •
(LCDMUX)
0
–
COM1
ATmega329P/3290P
13-6.
PA0/COM0
LCDEN
0
LCDEN
0
0
0
–
LCDEN
0
–
COM0
72
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