ATMEGA8L-8MU Atmel, ATMEGA8L-8MU Datasheet - Page 65

• Manufacturer Part Number: ATMEGA8L-8MU
• Description: IC AVR MCU 8K 8MHZ 3V 32-QFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA8L-8MU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 8MHz
• 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: 32-VQFN Exposed Pad, 32-HVQFN, 32-SQFN, 32-DHVQFN
• Package: 32MLF EP
• Device Core: AVR
• Family Name: ATmega
• Maximum Speed: 8 MHz
• Operating Supply Voltage: 3.3|5 V
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 23
• Interface Type: SPI/TWI/USART
• On-chip Adc: 8-chx10-bit
• Number Of Timers: 3
• Controller Family/series: AVR MEGA
• No. Of I/o's: 23
• Eeprom Memory Size: 512Byte
• Ram Memory Size: 1KB
• Cpu Speed: 8MHz
• Rohs Compliant: Yes
• For Use With: ATSTK600-TQFP32 - STK600 SOCKET/ADAPTER 32-TQFPATSTK600-DIP40 - STK600 SOCKET/ADAPTER 40-PDIP770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAGATAVRISP2 - PROGRAMMER AVR IN SYSTEMATSTK500 - PROGRAMMER AVR STARTER KIT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Register Description for I/O Ports
The Port B Data
Register – PORTB
The Port B Data
Direction Register –
DDRB
The Port B Input Pins
Address – PINB
The Port C Data
Register – PORTC
The Port C Data
Direction Register –
DDRC
The Port C Input Pins
Address – PINC
The Port D Data
Register – PORTD
The Port D Data
Direction Register –
DDRD
The Port D Input Pins
Address – PIND
2486Z–AVR–02/11
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
PORTB7
PORTD7
PINB7
PIND7
DDB7
DDD7
R/W
R/W
R/W
R/W
N/A
N/A
R
R
R
R
R
7
0
7
0
7
7
0
7
–
0
7
–
0
7
0
7
0
7
–
PORTB6
PORTC6
PORTD6
PINB6
PINC6
PIND6
DDB6
DDC6
DDD6
R/W
R/W
R/W
R/W
R/W
R/W
N/A
N/A
N/A
6
0
6
0
6
R
6
0
6
0
6
R
6
0
6
0
6
R
PORTB5
PORTC5
PORTD5
PINB5
PINC5
PIND5
DDB5
DDC5
DDD5
R/W
R/W
R/W
R/W
R/W
R/W
N/A
N/A
N/A
R
R
R
5
0
5
0
5
5
0
5
0
5
5
0
5
0
5
PORTB4
PORTC4
PORTD4
PINB4
PINC4
PIND4
DDB4
DDC4
DDD4
R/W
R/W
R/W
R/W
R/W
R/W
N/A
N/A
N/A
R
R
R
4
0
4
0
4
4
0
4
0
4
4
0
4
0
4
PORTB3
PORTC3
PORTD3
PINB3
PINC3
PIND3
DDB3
DDC3
DDD3
R/W
R/W
R/W
R/W
R/W
R/W
N/A
N/A
N/A
R
R
R
3
0
3
0
3
3
0
3
0
3
3
0
3
0
3
PORTB2
PORTC2
PORTD2
PINB2
PINC2
PIND2
DDB2
DDC2
DDD2
R/W
R/W
R/W
R/W
R/W
R/W
N/A
N/A
N/A
R
R
R
2
0
2
0
2
2
0
2
0
2
2
0
2
0
2
PORTB1
PORTC1
PORTD1
PINB1
PINC1
PIND1
DDB1
DDC1
DDD1
R/W
R/W
R/W
R/W
R/W
R/W
N/A
N/A
N/A
R
R
R
1
0
1
0
1
1
0
1
0
1
1
0
1
0
1
PORTB0
PORTC0
PORTD0
PINB0
PINC0
PIND0
ATmega8(L)
DDB0
DDC0
DDD0
R/W
R/W
R/W
R/W
R/W
R/W
N/A
N/A
N/A
R
R
R
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
PORTB
PORTC
PORTD
DDRB
DDRC
DDRD
PINB
PINC
PIND
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