DS18S20 查看數據表（PDF） - Dallas Semiconductor -> Maxim Integrated

零件编号

产品描述 (功能)

生产厂家

DS18S20

High Precision 1-Wire® Digital Thermometer

Dallas Semiconductor -> Maxim Integrated 

ROM FUNCTIONS FLOW CHART Figure 5

MASTER TX

RESET PULSE

DS18S20 TX

PRESENCE

PULSE

MASTER TX ROM

FUNCTION COMMAND

33h

N

READ ROM

COMMAND

Y

DS18S20 TX

FAMILY CODE

1 BYTE

55h

N

MATCH ROM

COMMAND

Y

MASTER TX

BIT 0

F0h

N

SEARCH ROM

COMMAND

Y

DS18S20 TX

SERIAL NUMBER

6 BYTES

DS18S20 TX

CRC BYTE

DS18S20 TX BIT 0

DS18S20 TX BIT 0

MASTER TX BIT 0

BIT 0

MATCH?

NN

BIT 0

MATCH?

Y

Y

MASTER TX

BIT 1

DS18S20 TX BIT 1

DS18S20 TX BIT 1

MASTER TX BIT 1

N

BIT 1

MATCH?

Y

N

BIT 1

MATCH?

Y

MASTER TX

BIT 63

DS18S20 TX BIT 63

DS18S20 TX BIT 63

MASTER TX BIT 63

ECh

ALARM

N

SEARCH

COMMAND

Y

N

ALARM

CONDITION ?

Y

N

BIT 63

MATCH?

Y

N

BIT 63

MATCH?

Y

CCh

N

SKIP ROM

COMMAND

Y

MASTER TX MEMORY OR CONTROL

FUNCTION COMMAND

7 of 27

DS18S20

Share Link: