Home datasheet ATMEGA48-20AU

ATMEGA48-20AU

8-bit Atmel Microcontroller with 4/8/16K Bytes In-System Programmable Flash
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Description

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

Features

Parameters

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Manufacturer information

ATMEL CORPORATION

Atmel (Microchip Technology) - Atmel was acquired by Microchip in April 2016. Atmel Corporation is an industry leader in the design and manufacture of advanced semiconductors, with focus on microcontrollers, nonvolatile memory, logic, radio frequency (RF) components and sensors. These functions are marketed as standard products, application-specific standard products (ASSPs) or customer-specific products (ASICs) in order to provide a rapid and flexible response to the needs of Atmel’s customers.


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