ATMEGA8535-16MU Atmel, ATMEGA8535-16MU Datasheet - Page 316

• Manufacturer Part Number: ATMEGA8535-16MU
• Description: IC AVR MCU 8K 16MHZ 5V 44-QFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA8535-16MU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• 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): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-VQFN Exposed Pad
• Processor Series: ATMEGA8x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 512 B
• Interface Type: 2-Wire, SPI, USART
• Maximum Clock Frequency: 16 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 3
• Operating Supply Voltage: 4.5 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Development Tools By Supplier: ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 8 Channel
• Package: 44MLF EP
• Device Core: AVR
• Family Name: ATmega
• Maximum Speed: 16 MHz
• For Use With: ATAVRISP2 - PROGRAMMER AVR IN SYSTEMATSTK500 - PROGRAMMER AVR STARTER KIT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ii
ATmega8535(L)
System Control and Reset ................................................................ 36
Interrupts ............................................................................................ 46
I/O-Ports.............................................................................................. 51
External Interrupts............................................................................. 68
8-bit Timer/Counter0 with PWM........................................................ 71
Timer/Counter0 and Timer/Counter1 Prescalers ............................ 87
16-bit Timer/Counter1........................................................................ 89
8-bit Timer/Counter2 with PWM and Asynchronous Operation .. 117
Standby Mode..................................................................................................... 34
Extended Standby Mode .................................................................................... 34
Minimizing Power Consumption ......................................................................... 35
Internal Voltage Reference ................................................................................. 41
Watchdog Timer ................................................................................................. 41
Timed Sequences for Changing the Configuration of the Watchdog Timer ....... 45
Interrupt Vectors in ATmega8535....................................................................... 46
Introduction ......................................................................................................... 51
Ports as General Digital I/O ................................................................................ 52
Alternate Port Functions ..................................................................................... 57
Register Description for I/O-Ports....................................................................... 66
Overview............................................................................................................. 71
Timer/Counter Clock Sources............................................................................. 72
Counter Unit........................................................................................................ 72
Output Compare Unit.......................................................................................... 73
Compare Match Output Unit ............................................................................... 75
Modes of Operation ............................................................................................ 76
Timer/Counter Timing Diagrams......................................................................... 80
8-bit Timer/Counter Register Description ........................................................... 83
Overview............................................................................................................. 89
Accessing 16-bit Registers ................................................................................. 92
Timer/Counter Clock Sources............................................................................. 95
Counter Unit........................................................................................................ 95
Input Capture Unit............................................................................................... 96
Output Compare Units ........................................................................................ 98
Compare Match Output Unit ............................................................................. 100
Modes of Operation .......................................................................................... 101
Timer/Counter Timing Diagrams....................................................................... 108
16-bit Timer/Counter Register Description ....................................................... 110
2502K–AVR–10/06