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ATMEGA644P-20AU 用户编程技术手册 - ATMEL（爱特美尔）
制造商:
ATMEL（爱特美尔）
分类:
8位微控制器
封装:
TQFP-44
描述:
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
Pictures:
3D模型
符号图
焊盘图
引脚图
产品图
页面导航:
引脚图在P2P6P74P93P111P139P494Hot
原理图在P4P9P72P93P94P96P97P112P117P118P120P122
封装尺寸在P489P490P491
型号编码规则在P486P487P488P494P495
封装信息在P489P494P495
应用领域在P41P50P62P65P276P280P293P294
导航目录
ATMEGA644P-20AU数据手册
Page:
of 506 Go
若手册格式错乱，请下载阅览PDF原文件
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 20 MHz
– On-chip 2-cycle Multiplier
• High Endurance Non-volatile Memory segments
– 16K/32K/64K Bytes of In-System Self-programmable Flash program memory
– 512B/1K/2K Bytes EEPROM
– 1K/2K/4K Bytes Internal SRAM
– Write/Erase Cycles: 10,000 Flash/ 100,000 EEPROM
– Data retention: 20 years at 85C/100 years at 25C
(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
• JTAG (IEEE std. 1149.1 Compliant) Interface
– Boundary-scan Capabilities According to the JTAG Standard
– Extensive On-chip Debug Support
– Programming of Flash, EEPROM, Fuses, and Lock Bits through the JTAG Interface
• Peripheral Features
– Two 8-bit Timer/Counters with Separate Prescalers and Compare Modes
– 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
Differential mode with selectable gain at 1×, 10× or 200×
– Byte-oriented Two-wire Serial Interface
– Two Programmable Serial USART
– Master/Slave SPI Serial Interface
– 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 RC 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
– 32 Programmable I/O Lines
– 40-pin PDIP, 44-lead TQFP, 44-pad VQFN/QFN/MLF (ATmega164P/324P/644P)
– 44-pad DRQFN (ATmega164P)
• Operating Voltages
– 1.8V - 5.5V for ATmega164P/324P/644PV
– 2.7V - 5.5V for ATmega164P/324P/644P
• Speed Grades
– ATmega164P/324P/644PV: 0 - 4 MHz @ 1.8V - 5.5V, 0 - 10 MHz @ 2.7V - 5.5V
– ATmega164P/324P/644P: 0 - 10 MHz @ 2.7V - 5.5V, 0 - 20 MHz @ 4.5V - 5.5V
• Power Consumption at 1 MHz, 1.8V, 25°C for ATmega164P/324P/644PV
– Active: 0.4 mA
– Power-down Mode: 0.1 µA
– Power-save Mode: 0.6 µA (Including 32 kHz RTC)
Note: 1. See ”Data Retention” on page 8.
8-bit Atmel
Microcontroller
with
16K/32K/64K
Bytes In-System
Programmable
Flash
ATmega164P/V
ATmega324P/V
ATmega644P/V
8011Q–AVR–02/2013
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