ATMEGA8535L-8AU Atmel, ATMEGA8535L-8AU Datasheet - Page 317

• Manufacturer Part Number: ATMEGA8535L-8AU
• Description: IC AVR MCU 8K 8MHZ 3V 44TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA8535L-8AU

• 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: -40°C ~ 85°C
• Package / Case: 44-TQFP, 44-VQFP
• Processor Series: ATMEGA8x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 512 B
• Interface Type: SPI, TWI, USART
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 3
• Operating Supply Voltage: 2.7 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 8 Channel
• For Use With: ATSTK600-DIP40 - STK600 SOCKET/ADAPTER 40-PDIP770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAG770-1005 - ISP 4PORT FOR ATMEL AVR MCU JTAG770-1004 - ISP 4PORT FOR ATMEL AVR MCU SPIATAVRISP2 - PROGRAMMER AVR IN SYSTEMATSTK500 - PROGRAMMER AVR STARTER KIT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

2502K–AVR–10/06
Serial Peripheral Interface – SPI..................................................... 136
USART .............................................................................................. 145
Two-wire Serial Interface ................................................................ 174
Analog Comparator ......................................................................... 203
Analog-to-Digital Converter............................................................ 206
Overview........................................................................................................... 117
Timer/Counter Clock Sources........................................................................... 118
Counter Unit...................................................................................................... 119
Output Compare Unit........................................................................................ 119
Compare Match Output Unit ............................................................................. 121
Modes of Operation .......................................................................................... 122
Timer/Counter Timing Diagrams....................................................................... 126
8-bit Timer/Counter Register Description ......................................................... 128
Asynchronous Operation of the Timer/Counter ................................................ 131
Timer/Counter Prescaler................................................................................... 134
SS Pin Functionality.......................................................................................... 141
Data Modes ...................................................................................................... 144
Overview........................................................................................................... 145
Clock Generation .............................................................................................. 146
Frame Formats ................................................................................................. 149
USART Initialization.......................................................................................... 150
Data Transmission – The USART Transmitter ................................................. 152
Data Reception – The USART Receiver .......................................................... 155
Asynchronous Data Reception ......................................................................... 158
Multi-processor Communication Mode ............................................................. 162
Accessing UBRRH/UCSRC Registers.............................................................. 163
USART Register Description ............................................................................ 164
Examples of Baud Rate Setting........................................................................ 170
Features............................................................................................................ 174
Two-wire Serial Interface Bus Definition........................................................... 174
Data Transfer and Frame Format ..................................................................... 175
Multi-master Bus Systems, Arbitration and Synchronization ............................ 177
Overview of the TWI Module ............................................................................ 179
TWI Register Description.................................................................................. 181
Using the TWI ................................................................................................... 185
Transmission Modes......................................................................................... 188
Multi-master Systems and Arbitration............................................................... 201
Analog Comparator Multiplexed Input .............................................................. 205
Features............................................................................................................ 206
Operation .......................................................................................................... 207
Starting a Conversion ....................................................................................... 208
ATmega8535(L)
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