• ATMEGA328-AU TQFP-32
ATMEGA328-AU TQFP-32

ATMEGA328-AU

IC MCU 8BIT 32KB FLASH 32TQFP

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Overview of ATMEGA328-AU

Overview The ATmega48A/PA/88A/PA/168A/PA/328/P 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 ATmega48A/PA/88A/PA/168A/PA/328/P achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimizepower 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 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 – 4/8/16/32KBytes of In-System Self-Programmable Flash program memory – 256/512/512/1KBytes EEPROM – 512/1K/1K/2KBytes 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 withSeparate 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 – 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 – 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: – 1.8 - 5.5V • Temperature Range: –-40°C to 85°C • Speed Grade: – 0 - [email protected] - 5.5V, 0 - [email protected] - 5.5.V, 0 - 20MHz @ 4.5 - 5.5V • Power Consumption at 1MHz, 1.8V, 25°C – Active Mode: 0.2mA – Power-down Mode: 0.1µA – Power-save Mode: 0.75µA(Including 32kHz RTC)

ATMEGA328-AU

Key Features

  • High Performance, Low Power Atmel® AVR® 8-Bit Microcontroller
  • 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
  • – 4/8/16/32KBytes of In-System Self-Programmable Flash program memory
  • – 256/512/512/1KBytes EEPROM
  • – 512/1K/1K/2KBytes 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 withSeparate 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
  • – 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
  • – 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:
  • – 1.8 - 5.5V
  • Temperature Range:
  • –-40°C to 85°C
  • Speed Grade:
  • [email protected]
  • - 5.5V, 0 -
  • [email protected]
  • - 5.5.V, 0 - 20MHz @ 4.5 - 5.5V
  • Power Consumption at 1MHz, 1.8V, 25°C
  • – Active Mode: 0.2mA
  • – Power-down Mode: 0.1µA
  • – Power-save Mode: 0.75µA(Including 32kHz RTC)

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Category Integrated Circuits (ICs)EmbeddedMicrocontrollers Mfr Microchip Technology
Series AVR® ATmega Package Tray
Product Status Active Digi-Key Programmable Verified
Core Processor AVR Core Size 8-Bit
Speed 20MHz Connectivity I²C, SPI, UART/USART
Peripherals Brown-out Detect/Reset, POR, PWM, WDT Number of I/O 23
Program Memory Size 32KB (16K x 16) Program Memory Type FLASH
EEPROM Size 1K x 8 RAM Size 2K x 8
Voltage - Supply (Vcc/Vdd) 1.8V ~ 5.5V Data Converters A/D 8x10b
Oscillator Type Internal Operating Temperature -40°C ~ 85°C (TA)
Mounting Type Surface Mount Package / Case 32-TQFP
Supplier Device Package 32-TQFP (7x7)

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