ATMEGA48-20MMH

AVR, 4KB FLASH, 256B EE, 512B EEPROM - 20MHz, QFN, 85C, Green

Overview

The Atmel ATmega48/88/168 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 ATmega48/88/168 achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed.

Features

• High performance, low power Atmel® AVR® 8-bit microcontroller

• Advanced RISC architecture

   – 131 powerful instructions – most single clock cycle execution

   – 32 × 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

   – 4/8/16 Kbytes of in-system self-programmable flash program memory

   – 256/512/512 bytes EEPROM

   – 512/1K/1Kbytes internal SRAM

   – Write/erase cyles: 10,000 flash/100,000 EEPROM

   – Data retention: 20 years at 85°C/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

• 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

   – 6-channel 10-bit ADC in PDIP Package

   – 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

• Special microcontroller features

   – DebugWIRE on-chip debug system

   – Power-on reset and programmable brown-out detection

   – Internal calibrated oscillator

   – External and internal interrupt sources

   – Five sleep modes: Idle, ADC noise reduction, power-save, power-down, and 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:

   – 1.8V - 5.5V for Atmel ATmega48V/88V/168V

   – 2.7V - 5.5V for Atmel ATmega48/88/168

• Temperature range:

   – -40°C to 85°C

• Speed grade:

   – ATmega48V/88V/168V: 0 - 4MHz @ 1.8V - 5.5V, 0 - 10MHz @ 2.7V - 5.5V

   – ATmega48/88/168: 0 - 10MHz @ 2.7V - 5.5V, 0 - 20MHz @ 4.5V - 5.5V

• Low power consumption

   – Active mode:

      250µA at 1MHz, 1.8V

      15µA at 32kHz, 1.8V including oscillator

   – Power-down mode:

      0.1µA at 1.8V