ATMEGA48P-20AU

8 位 PicoPower megaAVR 系列微控制器，Atmel此系列 megaAVR 微控制器具有 picoPower 技术 — 非常适合节能。 它们提供大量程序和数据内存，性能高达 20 MIPS。 **picoPower megaAVR 微控制器的特色和优点** •片上闪存 •SRAM •内部 EEPROM •SPI •TWI I²C •USART、USB、CAN 和 LIN 接口 •监控计时器 •精密振荡器 •GPIO 引脚 •ADC •DAC •内置温度传感器 •内部参考电压 •掉电检测器### AVR 微控制器，Atmel

Overview

The ATmega48P/88P/168P 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 ATmega48P/88P/168P 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 x 8 General Purpose Working Registers

   – Fully Static Operation

   – Up to 20 MIPS Throughput at 20 MHz

   – On-chip 2-cycle Multiplier

• High Endurance Non-volatile Memory Segments

   – 4/8/16K Bytes of In-System Self-Programmable Flash progam memory

   – 256/512/512 Bytes EEPROM

   – 512/1K/1K Bytes Internal SRAM

   – Write/Erase Cycles: 10,000 Flash/100,000 EEPROM

   – Data retention: 20 years at 85°C/100 years at 25°C1

   – 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

• 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

   – 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 for ATmega48P/88P/168PV

   – 2.7 - 5.5V for ATmega48P/88P/168P

• Temperature Range:

   – -40°C to 85°C

• Speed Grade:

   – ATmega48P/88P/168PV: 0 - 4 MHz @ 1.8 - 5.5V, 0 - 10 MHz @ 2.7 - 5.5V

   – ATmega48P/88P/168P: 0 - 10 MHz @ 2.7 - 5.5V, 0 - 20 MHz @ 4.5 - 5.5V

• Low Power Consumption at 1 MHz, 1.8V, 25°C:

   – Active Mode: 0.3 mA

   – Power-down Mode: 0.1 µA

   – Power-save Mode: 0.8 µA Including 32 kHz RTC