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ATMEGA168A-MU 用户编程技术手册 - ATMEL（爱特美尔）
制造商:
ATMEL（爱特美尔）
分类:
微控制器
封装:
VFQFN-32
描述:
8 位 megaAVR® 微控制器，4KB 至 16KB 闪存，Atmel我们在 RS Components 提供 Atmel 的各种 megaAVR 8 位微控制器。每个微控制器均基于增强型 RISC 体系结构，并具有 QTouch 库支持。 所有 megaAVR 微控制器具有不同 Kb 的系统内可编程内存、EEPROM 和 SRAM 以及不同引脚和封装类型。 **megaAVR 8 位微控制器类型 ** ATmega8 ATmega16 ATmega48 ATmega88 ATmega162 ATmega164 ATmega165 ATmega168 ATmega8515 ATmega8535### AVR 微控制器，Atmel
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ATMEGA168A-MU数据手册
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6
ATmega48A/PA/88A/PA/168A/PA/328/P [DATASHEET]
Atmel-8271IS-AVR- ATmega-Datasheet_10/2014
2. 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 optimize power consumption versus processing speed.
2.1 Block Diagram
Figure 2-1. Block Diagram
The AVR core combines a rich instruction set with 32 general purpose working registers. All the 32 registers are
directly connected to the Arithmetic Logic Unit (ALU), allowing two independent registers to be accessed in one
single instruction executed in one clock cycle. The resulting architecture is more code efficient while achieving
throughputs up to ten times faster than conventional CISC microcontrollers.
PORT C (7)PORT B (8)PORT D (8)
USART 0
8bit T/C 2
16bit T/C 18bit T/C 0 A/D Conv.
Internal
Bandgap
Analog
Comp.
SPI TWI
SRAMFlash
EEPROM
Watchdog
Oscillator
Watchdog
Timer
Oscillator
Circuits /
Clock
Generation
Power
Supervision
POR / BOD &
RESET
VCC
GND
PROGRAM
LOGIC
debugWIRE
2
GND
AREF
AVCC
DATA BU S
ADC[6..7]PC[0..6]PB[0..7]PD[0..7]
6
RESET
XTAL[1..2]
CPU
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