ATTINY45-20PU

The high-performance, low-power Atmel 8-bit AVR RISC-based microcontroller combines 4KB ISP flash memory, 256-Byte EEPROM, 256B SRAM, 6 general purpose I/O lines, 32 general purpose working registers, one 8-bit timer/counter with compare modes, one 8-bit high speed timer/counter, USI, internal and external Interrupts, 4-channel 10-bit A/D converter, programmable watchdog timer with internal oscillator, three software selectable power saving modes, and debugWIRE for on-chip debugging. The device achieves a throughput of 20 MIPS at 20 MHz and operates between 2.7-5.5 volts.By executing powerful instructions in a single clock cycle, the device achieves throughputs approaching 1 MIPS per MHz, balancing power consumption and processing speed.

Characteristics:

• 8-bit microcontroller architecture of the AVR family
  
• Up to 6 I / O pins available
  
• Flash memory 4 kB program
  
• S RAM 256 Bytes
  
• EEPROM 256 data Bytes
  
• external oscillator to 20 MHz
  
• 10-bit ADC, 4 channels (or 2 differential channels) and temperature measurement
  
• Operating Voltage 2.7 V to 5.5 V
  
• 1 timer / counter  8 bits
  
• 1 timer / counter 8-bit, high speed and separate prescaler
  
• 4-channel PWM
  
• USI (Universal Serial Interface) that supports SPI and TWI
  
• analog comparator
  
• Multiple interrupt sources
  
• Configurable internal clock oscillator
  
• Brown-out Reset programmable value
  
• Power-on Reset
  
• Low power modes
  
• It supports 10,000 erase cycles / write flash memory
  
• Supports 100,000 erase cycles / write EEPROM memory
  
• Programmable code protection and data
  
• PDIP package 8-pin