ATMEGA48-20AU Microchip 8bit MCU

ATMEGA48-20AU Overview

AVR AVR® ATmega Microcontroller IC 8-Bit 20MHz 4KB (2K x 16) FLASH 32-TQFP (7x7)

ECAD Model

Footprint

Features

High Performance, Low Power Atmel®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– 4K/8K/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 85°C/100 years at 25°C(1)– 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 Atmel® 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 with Separate Prescaler and Compare Mode– 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 in TQFP and QFN/MLF package Temperature Measurement– 6-channel 10-bit ADC in PDIP Package Temperature Measurement– Two Master/Slave SPI Serial Interface– One Programmable Serial USART– One Byte-oriented 2-wire Serial Interface (Philips I2C compatible)– Programmable Watchdog Timer with Separate On-chip Oscillator– One On-chip Analog Comparator– Interrupt and Wake-up on Pin Change Special Microcontroller Features– Power-on Reset and Programmable Brown-out Detection– Internal Calibrated 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– 23 Programmable I/O Lines– 28-pin PDIP, 32-lead TQFP, 28-pad QFN/MLF and 32-pad QFN/MLF Operating Voltage:– 2.7 - 5.5V for ATmega48/88/168– 1.8 - 5.5V for ATmega48V/88V/168V Temperature Range:– -40°C to 85°C Speed Grade:– ATmega48/88/168: 0 - 10MHz @ 2.7V - 5.5V, 0 - 20MHz @ 4.5V - 5.5V– ATmega48V/88V/168V: 0 - 4MHz @ 1.8V - 5.5V, 0 - 10MHz @ 2.7V - 5.5V Power Consumption at 1MHz, 1.8V, 25°C– Active Mode: 0.3mA– Power-down Mode: 0.1μA– Power-save Mode: 0.8μA (Including 32kHz RTC)