ATMEGA8L-8MU Atmel, ATMEGA8L-8MU Datasheet - Page 60

• 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

60
ATmega8(L)
Table 23. Overriding Signals for Alternate Functions in PB7..PB4
Notes:
Table 24. Overriding Signals for Alternate Functions in PB3..PB0
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
PB3/MOSI/OC2
SPE • MSTR
PORTB3 • PUD
SPE • MSTR
0
SPE • MSTR +
OC2 ENABLE
SPI MSTR OUTPUT + OC2
0
0
SPI SLAVE INPUT
–
Fuse)
(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
–
PB0/ICP1
0
0
0
0
0
0
0
0
ICP1 INPUT
–
2486Z–AVR–02/11