ATMEGA8A-MUR Atmel, ATMEGA8A-MUR Datasheet - Page 64

• Manufacturer Part Number: ATMEGA8A-MUR
• Description: MCU AVR 8KB FLASH 16MHZ 32QFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA8A-MUR

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 23
• Program Memory Size: 8KB (4K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 1K 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

8159D–AVR–02/11
• RXD – Port D, Bit 0
RXD, Receive Data (Data input pin for the USART). When the USART Receiver is enabled this
pin is configured as an input regardless of the value of DDD0. When the USART forces this pin
to be an input, the pull-up can still be controlled by the PORTD0 bit.
Table 12-9
shown in
Table 12-9.
Table 12-10. Overriding Signals for Alternate Functions in PD3:PD0
Signal Name
PUOE
PUO
OOE
OO
PVOE
PVO
DIEOE
DIEO
DI
AIO
Signal Name
PUOE
PUO
OOE
OO
PVOE
PVO
DIEOE
DIEO
DI
AIO
Figure 12-5 on page
and
Overriding Signals for Alternate Functions PD7:PD4
Table 12-10
PD7/AIN1
0
0
0
0
0
0
0
0
–
AIN1 INPUT
PD3/INT1
INT1 ENABLE
0
0
0
0
0
0
1
INT1 INPUT
–
relate the alternate functions of Port D to the overriding signals
56.
PD6/AIN0
0
0
0
0
0
0
0
0
–
AIN0 INPUT
PD2/INT0
0
0
0
0
0
0
INT0 ENABLE
1
INT0 INPUT
–
PD5/T1
0
0
0
0
0
0
0
0
T1 INPUT
–
PD1/TXD
TXEN
0
TXEN
1
TXEN
TXD
0
0
–
–
PD4/XCK/T0
0
0
0
0
UMSEL
XCK OUTPUT
0
0
XCK INPUT / T0 INPUT
–
ATmega8A
PD0/RXD
RXEN
PORTD0 • PUD
RXEN
0
0
0
0
0
RXD
–
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