DS1822 查看數據表（PDF） - Dallas Semiconductor -> Maxim Integrated

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DS1822

Econo 1-Wire Digital Thermometer

Dallas Semiconductor -> Maxim Integrated 

DS1822 BLOCK DIAGRAM Figure 1

VPU

4.7K

DQ

GND

PARASITE POWER

CIRCUIT

INTERNAL VDD

CPP

64-BIT ROM

AND

1-wire PORT

VDD

POWER

SUPPLY

SENSE

DS1822

MEMORY CONTROL

LOGIC

DS1822

SCRATCHPAD

TEMPERATURE SENSOR

ALARM HIGH TRIGGER (TH)

REGISTER (EEPROM)

ALARM LOW TRIGGER (TL)

REGISTER (EEPROM)

CONFIGURATION REGISTER

(EEPROM)

8-BIT CRC GENERATOR

3 of 21

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