The ATmega168PA is a low power, CMOS 8-bit microcontroller based on the AVR® enhanced RISC architecture. By executing instructions in a single clock cycle, the devices achieve CPU throughput approaching one million instructions per second (MIPS) per megahertz, allowing the system designer to optimize power consumption versus processing speed. The high-performance Microchip Pico Power® 8-bit AVR® RISC-based microcontroller combines 16 KB ISP flash memory with read-while-write capabilities, 512B EEPROM, 1 KB SRAM, 23 general-purpose I/O lines, 32 general purpose working registers, three flexible timer/counters with compare modes, internal and external interrupts, serial programmable USART, a byte-oriented Two-Wire serial interface, SPI serial port, 6-channel 10-bit A/D converter (8-channels in TQFP and QFN/MLF packages), programmable watchdog timer with internal oscillator, and five software selectable power saving modes. The device operates between 1.8-5.5 volts. By executing powerful instructions in a single clock cycle, the device achieves throughputs approaching one MIPS per MHz, balancing power consumption and processing speed.

Datasheet

Features

•  131 powerful instructions – most single clock cycle execution
•  32*8 general purpose working registers
• Fully static operation
• Up to 16MIPS throughput at 16MHz
• On-chip 2-cycle multiplier

● High endurance non-volatile memory segments

•  4/8/16K bytes of in-system self-programmable flash program memory
•  256/512/512 bytes EEPROM
•  512/1K/1K bytes internal SRAM
•  Write/erase cycles: 10,000 flash/100,000 EEPROM
•  Optional boot code section with independent lock bits
•  In-system programming by an on-chip boot program
•  True read-while-write operation
•  Programming Lock for software security

● Peripheral features

•  Two 8-bit Timer/Counters with Separate Prescaler and compare mod
•  One 16-bit Timer/Counter with separate Prescaler, compare mode, and capture mode
•  Real-time Counter with separate oscillator
•  Six PWM channels
•  8-channel 10-bit ADC
•  Temperature measurement
•  Programmable Serial USART
•  Master/slave SPI serial interface
•  Byte-oriented 2-wire serial interface (Philips I2C compatible)
•  Programmable watchdog timer with separate on-chip oscillator
•  On-chip analog comparator
•  Interrupt and wake up on pin change

SPECIFICATIONS