DS1775R2TR 查看數據表（PDF） - Maxim Integrated
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DS1775R2TR Datasheet PDF : 15 Pages
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DS1775
Digital Thermometer and Thermostat in SOT23
WRITE TO POINTER ADDRESS
SCL
SDA
S 1 0 0 1 0 0 0 W A 0 0 0 0 0 0 P1 P0 A
P
START
ADDRESS BYTE
DS1775
ACK
WRITE TO CONFIGURATION REGISTER (SINGLE BYTE)
POINTER BYTE
DS1775 STOP
ACK
SCL
SDA
S 1 0 0 1 0 0 0 W A 0 0 0 0 0 0 0 1 A D7 D6 D5 D4 D3 D2 D1 D0 A
P
START
ADDRESS BYTE
DS1775
ACK
WRITE TO TOS / THYST REGISTER (TWO–BYTE)
POINTER BYTE
DS1775
ACK
DATA BYTE
DS1775 STOP
ACK
SCL
S 1 0 0 1 0 0 0 W A 0 0 0 0 0 0 P1 P0 A D7 D6 D5 D4 D3 D2 D1 D0 A
SDA
START
ADDRESS BYTE
DS1775
ACK
SCL
SDA
D7 D6 D5 D4 D3 D2 D1 D0 A P
POINTER BYTE
DS1775
ACK
MSBYTE
LSBYTE
DS1775 STOP
ACK
READ SINGLE BYTE FROM CURRENT POINTER LOCATION (CONFIGURATION)
SCL
SDA
S 1 0 0 1 0 0 0 Rd A D7 D6 D5 D4 D3 D2 D1 D0 N
P
DS1775
ACK
START
ADDRESS BYTE
DS1775
ACK
DATA BYTE
MASTER
NACK
READ MULTIPLE BYTES FROM CURRENT POINTER LOCATION (TEMPERATURE, TOS, THYST)
SCL
STOP
SDA
S 1 0 0 1 0 0 0 Rd A D7 D6 D5 D4 D3 D2 D1 D0 A D7 D6 D5 D4 D3 D2 D1 D0 N
P
START
ADDRESS BYTE
DS1775
ACK
READ SINGLE BYTE FROM NEW POINTER ADDRESS REGISTER
SCL
MSBYTE
MASTER
ACK
SDA
S 1 0 0 1 0 0 0 W A 0 0 0 0 0 0 P1 P0 A R 1
LSBYTE
MASTER STOP
ACK
0 0 1 A2 A1 A0 Rd A
START
SCL
SDA
ADDRESS BYTE
DS1775
ACK
POINTER BYTE
DS1775 REPEATED
ACK START
ADDRESS BYTE
DS1775
ACK
D7 D6 D5 D4 D3 D2 D1 D0 N
P
DATA BYTE
MASTER STOP
NACK
Figure 4. 2-Wire Serial Communication with DS1775
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