ATmega48PB/88PB/168PB ATmega48PB/88PB/168PB Data Sheet Introduction The ATmega48PB/88PB/168PB is a low-power CMOS 8-bit microcontroller based on the AVR enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the ATmega48PB/88PB/ 168PB achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed. Features High Performance, Low Power Microchip AVR 8-Bit Microcontroller Family Advanced RISC Architecture 131 Powerful Instructions Most Single Clock Cycle Execution 32 x 8 General Purpose Working Registers Fully Static Operation Up to 20 MIPS Throughput at 20MHz On-chip 2-cycle Multiplier High Endurance Non-volatile Memory Segments 4/8/16KBytes of In-System Self-Programmable Flash program memory 256/512/512Bytes EEPROM 512/1K/1KBytes Internal SRAM Write/Erase Cycles: 10,000 Flash/100,000 EEPROM Data retention: 20 years at 85C/100 years at 25 C Optional Boot Code Section with Independent Lock Bits In-System Programming by On-chip Boot Program True Read-While-Write Operation Programming Lock for Software Security Microchip QTouch library support Capacitive touch buttons, sliders and wheels QTouch and QMatrix acquisition Up to 64 sense channels Peripheral Features Two 8-bit Timer/Counters (TC) with Separate Prescaler and Compare Mode 16-bit Timer/Counter with Separate Prescaler, Compare Mode, and Capture Mode Real Time Counter (RTC) with Separate Oscillator 2017-2021 Microchip Technology Inc. and its subsidiaries Data sheet complete DS40001909B-page 1ATmega48PB/88PB/168PB Six Pulse Width Modulation (PWM) channels 8-channel 10-bit ADC with temperature measurement Programmable Serial USART with start-of-frame detection Master/Slave SPI Serial Interface 2 Byte-oriented Two-Wire Serial Interface (Phillips I C compatible) Programmable Watchdog Timer (WDT) with separate on-chip oscillator On-chip Analog Comparator Interrupt and Wake-up on Pin Change 256-channel capacitive touch and proximity sensing Special Microcontroller Features Power-on Reset (POR) and Programmable Brown-out Detection (BOD) Internal calibrated oscillator External and internal interrupt sources Six Sleep Modes: Idle, ADC Noise Reduction, Power-save, Power-down, Standby, and Extended Standby Unique Device ID I/O and Packages 27 Programmable I/O Lines 32-lead TQFP and 32-pad VQFN Operating Voltage: 1.8 - 5.5V Temperature Range: -40C to 105C Speed Grade: 0 - 4MHz 1.8 - 5.5V, 0 - 10MHz 2.7 - 5.5.V, 0 - 20MHz 4.5 - 5.5V Power Consumption at 1MHz, 1.8V, 25C Active Mode: 0.35mA Power-down Mode: 0.23A Power-save Mode: <1.4A (Including 32kHz RTC) 2017-2021 Microchip Technology Inc. and its subsidiaries Data Sheet Complete DS40001909B-page 2