Microchip Technology, Inc. ATMEGA328PB

The high-performance, low-power Microchip 8-bit AVR® RISC-based microcontroller combines 64 KB ISP Flash memory with read-while-write capabilities, 2 KB EEPROM, 4 KB SRAM, 27 general purpose I/O lines, 32 general purpose working registers, two flexible timer/counters with compare modes and PWM, one UART with HW LIN, an 11-channel 10-bit A/D converter with two differential programmable gain input stages, a 10-bit D/A converter, a programmable watchdog timer with an internal individual oscillator, SPI serial port, an on-chip debug system, and four software selectable power saving modes. The device operates between 2.7-5.5 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. Additional Features 131 Powerful Instructions Most Single Clock Cycle Execution 32 x 8 General Purpose Working Registers Fully Static Operation Up to 20 MIPS Throughput at 20 MHz On-Chip 2-Cycle Multiplier 32 KB of In-System Self-Programmable Flash program memory 1 KB EEPROM 2 KB Internal SRAM Write/Erase Cycles: 10,000 Flash/100,000 EEPROM Data retention: 20 years at 85°C In-System Programming by On-chip Boot Program True Read-While-Write Operation Programming Lock for Software Security Capacitive Touch Buttons, Sliders and Wheels 24 Self-Cap Channels and 144 Mutual Cap Channels Two 8-bit Timer/Counters with Separate Prescaler and Compare Mode Three 16-bit Timer/Counters with Separate Prescaler, Compare Mode, and Capture Mode Real Time Counter with Separate Oscillator Ten PWM Channels 8-channel 10-bit ADC in TQFP and QFN/MLF package Two Programmable Serial USARTs Two Master/Slave SPI Serial Interfaces Two Byte-Oriented Two-Wire Serial Interfaces (Philips I2C Compatible) Programmable Watchdog Timer with Separate On-chip Oscillator On-Chip Analog Comparator Interrupt and Wake-Up on Pin Change Power-On Reset and Programmable Brown-Out Detection Internal 8 MHz Calibrated Oscillator External and Internal Interrupt Sources Six Sleep Modes: Idle, ADC Noise Reduction, Power-save, Power-down, Standby, and Extended Standby Clock Failure Detection Mechanism and Switch to Internal 8 MHz RC Oscillator in case of Failure Individual Serial Number to Represent a Unique ID 27 Programmable I/O Lines 32-pin TQFP and 32-pin QFN/MLF 1.8-5.5V -40°C to 105°C 0-4 MHz @ 1.8 - 5.5V 0-10 MHz @ 2.7 - 5.5.V 0-20 MHz @ 4.5 - 5.5V Active Mode: 0.24 mA Power-Down Mode: 0.2 μA Power-Save Mode: 1.3 μA (Including 32 kHz RTC)