ATMEGA8A-AUR Atmel, ATMEGA8A-AUR Datasheet - Page 60

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

Specifications of ATMEGA8A-AUR

• 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
Table 12-3.
Notes:
Table 12-4.
Signal
Name
PUOE
PUO
DDOE
DDOV
PVOE
PVOV
DIEOE
DIEOV
DI
AIO
Signal
Name
PUOE
PUO
DDOE
DDOV
PVOE
PVOV
DIEOE
DIEOV
DI
AIO
1. INTRC means that the internal RC Oscillator is selected (by the CKSEL Fuse).
2. EXT means that the external RC Oscillator or an external clock is selected (by the CKSEL
PB7/XTAL2/
TOSC2
EXT • (INTRC +
AS2)
0
EXT • (INTRC +
AS2)
0
0
0
EXT • (INTRC +
AS2)
0
–
Oscillator Output
Fuse).
PB3/MOSI/OC2
SPE • MSTR
PORTB3 • PUD
SPE • MSTR
0
SPE • MSTR +
OC2 ENABLE
SPI MSTR OUTPUT + OC2
0
0
SPI SLAVE INPUT
–
Overriding Signals for Alternate Functions in PB7:PB4
Overriding Signals for Alternate Functions in PB3:PB0
(1)(2)
PB6/XTAL1/
TOSC1
INTRC + AS2
0
INTRC + AS2
0
0
0
INTRC + AS2
0
–
Oscillator/Clock Input
(1)
PB2/SS/OC1B
SPE • MSTR
PORTB2 • PUD
SPE • MSTR
0
OC1B ENABLE
OC1B
0
0
SPI SS
–
PB5/SCK
SPE • MSTR
PORTB5 • PUD
SPE • MSTR
0
SPE • MSTR
SCK OUTPUT
0
0
SCK INPUT
–
PB1/OC1A
0
0
0
0
OC1A ENABLE
OC1A
0
0
–
–
PB4/MISO
SPE • MSTR
PORTB4 • PUD
SPE • MSTR
0
SPE • MSTR
SPI SLAVE OUTPUT
0
0
SPI MSTR INPUT
–
ATmega8A
PB0/ICP1
0
0
0
0
0
0
0
0
ICP1 INPUT
–
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