ATMEGA8535L-8AC Atmel, ATMEGA8535L-8AC Datasheet - Page 315

• Manufacturer Part Number: ATMEGA8535L-8AC
• Description: IC AVR MCU 8K LV 8MHZ COM 44TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA8535L-8AC

• 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: 32
• Program Memory Size: 8KB (4K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 44-TQFP, 44-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Table of Contents
2502K–AVR–10/06
Features................................................................................................ 1
Pin Configurations............................................................................... 2
Overview............................................................................................... 3
Resources ............................................................................................ 6
About Code Examples......................................................................... 7
AVR CPU Core ..................................................................................... 8
AVR ATmega8535 Memories ............................................................ 16
System Clock and Clock Options .................................................... 24
Power Management and Sleep Modes............................................. 32
Disclaimer ............................................................................................................. 2
Block Diagram ...................................................................................................... 3
AT90S8535 Compatibility ..................................................................................... 4
Pin Descriptions.................................................................................................... 5
Introduction ........................................................................................................... 8
Architectural Overview.......................................................................................... 8
ALU – Arithmetic Logic Unit.................................................................................. 9
Status Register ................................................................................................... 10
General Purpose Register File ........................................................................... 11
Stack Pointer ...................................................................................................... 12
Instruction Execution Timing............................................................................... 13
Reset and Interrupt Handling.............................................................................. 13
In-System Reprogrammable Flash Program Memory ........................................ 16
SRAM Data Memory........................................................................................... 17
EEPROM Data Memory...................................................................................... 18
I/O Memory ......................................................................................................... 23
Clock Systems and their Distribution .................................................................. 24
Clock Sources..................................................................................................... 25
Default Clock Source .......................................................................................... 25
Crystal Oscillator................................................................................................. 25
Low-frequency Crystal Oscillator ........................................................................ 28
External RC Oscillator ........................................................................................ 28
Calibrated Internal RC Oscillator ........................................................................ 29
External Clock..................................................................................................... 31
Timer/Counter Oscillator..................................................................................... 31
Idle Mode ............................................................................................................ 33
ADC Noise Reduction Mode............................................................................... 33
Power-down Mode.............................................................................................. 33
Power-save Mode............................................................................................... 33
ATmega8535(L)
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