8-bit ATMega AVR microcontroller, 8 KB, 16 MHz, TQFP-44

8-bit Microcontroller with 8K Bytes In-System Programmable Flash

Features
- High-performance, Low-power AVR® 8-bit Microcontroller

- Advanced RISC Architecture
- 130 Powerful Instructions - Most Single Clock Cycle Execution
- 32 x 8 General Purpose Working Registers
- Fully Static Operation
- Up to 16 MIPS Throughput at 16 MHz
- On-chip 2-cycle Multiplier

- Nonvolatile Program and Data Memories
- 8K Bytes of In-System Self-Programmable Flash, Endurance: 10,000 Write/Erase Cycles
- Optional Boot Code Section with Independent Lock Bits, In-System Programming by On-chip Boot Program, True Read-While-Write Operation
- 512 Bytes EEPROM Endurance: 100,000 Write/Erase Cycles
- 512 Bytes Internal SRAM
- Programming Lock for Software Security

- Peripheral Features
- Two 8-bit Timer/Counters with Separate Prescalers and Compare Modes
- One 16-bit Timer/Counter with Separate Prescaler, Compare Mode, and Capture
Mode
- Real Time Counter with Separate Oscillator
- Four PWM Channels
- 8-channel, 10-bit ADC
- 8 Single-ended Channels
- 7 Differential Channels for TQFP Package Only
- 2 Differential Channels with Programmable Gain at 1x, 10x, or 200x for TQFP
- Byte-oriented Two-wire Serial Interface
- Programmable Serial USART
- Master/Slave SPI Serial Interface
- Programmable Watchdog Timer with Separate On-chip Oscillator
- On-chip Analog Comparator

- Special Microcontroller Features
- Power-on Reset and Programmable Brown-out Detection
- Internal Calibrated RC Oscillator
- External and Internal Interrupt Sources
- Six Sleep Modes: Idle, ADC Noise Reduction, Power-save, Power-down, Standby
and Extended Standby

- I/O and Packages
- 32 Programmable I/O Lines
- 40-pin PDIP, 44-lead TQFP, 44-lead PLCC, and 44-pad QFN/MLF

- Operating Voltages
- 2.7 - 5.5V for ATmega8535L
- 4.5 - 5.5V for ATmega8535

- Speed Grades
- 0 - 8 MHz for ATmega8535L
- 0 - 16 MHz for ATmega8535