ATMEGA8L-8PU Atmel, ATMEGA8L-8PU Datasheet - Page 299

• Manufacturer Part Number: ATMEGA8L-8PU
• Description: IC AVR MCU 8K 8MHZ 3V 28DIP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA8L-8PU

• 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 6x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-DIP (0.300", 7.62mm)
• Cpu Family: ATmega
• Device Core: AVR
• Device Core Size: 8b
• Frequency (max): 8MHz
• Interface Type: SPI/TWI/USART
• Total Internal Ram Size: 1KB
• # I/os (max): 23
• Number Of Timers - General Purpose: 3
• Operating Supply Voltage (typ): 3.3/5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 2.7V
• On-chip Adc: 6-chx10-bit
• Instruction Set Architecture: RISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Through Hole
• Pin Count: 28
• Package Type: PDIP
• Processor Series: ATMEGA8x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 1 KB
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 23
• Number Of Timers: 3
• Operating Supply Voltage: 2.7 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: Through Hole
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Minimum Operating Temperature: - 40 C
• 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

Table of Contents
2486O–AVR–10/04
Features................................................................................................ 1
Pin Configurations............................................................................... 2
Overview............................................................................................... 3
About Code Examples......................................................................... 6
AVR CPU Core ..................................................................................... 7
AVR ATmega8 Memories .................................................................. 15
System Clock and Clock Options .................................................... 23
Power Management and Sleep Modes............................................. 31
Block Diagram ...................................................................................................... 3
Disclaimer ............................................................................................................. 4
Pin Descriptions.................................................................................................... 5
Introduction ........................................................................................................... 7
Architectural Overview.......................................................................................... 7
Arithmetic Logic Unit – ALU.................................................................................. 9
Status Register ..................................................................................................... 9
General Purpose Register File ........................................................................... 10
Stack Pointer ...................................................................................................... 11
Instruction Execution Timing............................................................................... 12
Reset and Interrupt Handling.............................................................................. 12
In-System Reprogrammable Flash Program Memory ........................................ 15
SRAM Data Memory........................................................................................... 16
Data Memory Access Times............................................................................... 17
EEPROM Data Memory...................................................................................... 17
I/O Memory ......................................................................................................... 22
Clock Systems and their Distribution .................................................................. 23
Clock Sources..................................................................................................... 24
Crystal Oscillator................................................................................................. 25
Low-frequency Crystal Oscillator ........................................................................ 26
External RC Oscillator ........................................................................................ 27
Calibrated Internal RC Oscillator ........................................................................ 28
External Clock..................................................................................................... 30
Timer/Counter Oscillator..................................................................................... 30
Idle Mode ............................................................................................................ 32
ADC Noise Reduction Mode............................................................................... 32
Power-down Mode.............................................................................................. 32
Power-save Mode............................................................................................... 32
Standby Mode..................................................................................................... 33
Minimizing Power Consumption ......................................................................... 33
ATmega8(L)
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