ATMEGA8L-8MUR Atmel, ATMEGA8L-8MUR Datasheet - Page 3

• Manufacturer Part Number: ATMEGA8L-8MUR
• Description: MCU AVR 8KB FLASH 8MHZ 32QFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA8L-8MUR

• 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: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Overview
Block Diagram
2486Z–AVR–02/11
The Atmel
architecture. By executing powerful instructions in a single clock cycle, the ATmega8 achieves
throughputs approaching 1MIPS per MHz, allowing the system designer to optimize power con-
sumption versus processing speed.
Figure 1. Block Diagram
RESET
GND
VCC
AGND
AREF
®
AVR
®
ATmega8 is a low-power CMOS 8-bit microcontroller based on the AVR RISC
INSTRUCTION
INSTRUCTION
AVR CPU
PROGRAMMING
CONTROL
PROGRAM
PROGRAM
REGISTER
COUNTER
DECODER
FLASH
LINES
PORTC DIGITAL INTERFACE
MUX &
PORTC DRIVERS/BUFFERS
LOGIC
ADC
+
-
PC0 - PC6
REGISTERS
INTERFACE
INTERFACE
PURPOSE
REGISTER
GENERAL
POINTER
STATUS
STACK
COMP.
SRAM
ADC
ALU
SPI
X
Y
Z
OSCILLATOR
WATCHDOG
INTERRUPT
COUNTERS
MCU CTRL.
INTERNAL
& TIMING
EEPROM
TIMERS/
USART
PORTB DIGITAL INTERFACE
TIMER
PORTD DIGITAL INTERFACE
PORTB DRIVERS/BUFFERS
PORTD DRIVERS/BUFFERS
UNIT
TWI
PB0 - PB7
PD0 - PD7
OSCILLATOR
OSCILLATOR
ATmega8(L)
XTAL1
XTAL2
3