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ATTINY45-20SH 用户编程技术手册 - ATMEL（爱特美尔）
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ATMEL（爱特美尔）
分类:
微控制器
封装:
SOIC-8
描述:
8 位 tinyAVR® 微控制器，AtmelAtmel 的 tinyAVR® 设备经优化处理，适用于需要性能、电源效率、易于使用且采用小型封装的应用。体积小巧，适用于注重尺寸的应用 电容式触摸 快速，且代码高效 高集成 1.8V 至 5.5V 工作 (ATtiny43U) ### AVR 微控制器，Atmel
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型号编码规则在P203P204P205P219P220
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应用领域在P31
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ATTINY45-20SH数据手册
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4
ATtiny25/45/85 [DATASHEET]
2586O–AVR–02/13
2. Overview
The ATtiny25/45/85 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 ATtiny25/45/85 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 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.
PROGRAM
COUNTER
CALIBRATED
INTERNAL
OSCILLATOR
WATCHDOG
TIMER
STACK
POINTER
PROGRAM
FLASH
SRAM
MCU CONTROL
REGISTER
GENERAL
PURPOSE
REGISTERS
INSTRUCTION
REGISTER
TIMER/
COUNTER0
SERIAL
UNIVERSAL
INTERFACE
TIMER/
COUNTER1
INSTRUCTION
DECODER
DATA DIR.
REG.PORT B
DATA REGISTER
PORT B
PROGRAMMING
LOGIC
TIMING AND
CONTROL
MCU STATUS
REGISTER
STATUS
REGISTER
ALU
PORT B DRIVERS
PB[0:5]
VCC
GND
CONTROL
LINES
8-BIT DATABUS
Z
ADC /
ANALOG COMPARATOR
INTERRUPT
UNIT
DATA
EEPROM
OSCILLATORS
Y
X
RESET
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