TMP275 Datasheet, PDF (11/14 Pages) Burr-Brown (TI) – 0.5°C Digital Out Temperature Sensor

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1
SCL
91
TMP275
SBOS363A − JUNE 2006 − REVISED JUNE 2006
9
…
SDA
1 0 0 1 0 0 0 R/W
0 0 0 0 0 0 P1 P0
…
Start By
Master
Frame 1 Two−Wire Slave Address Byte
ACK By
TMP275
ACK By
TMP275
Frame 2 Pointer Register Byte
1
SCL
(Continued)
91
9
…
SDA
1
(Continued)
Start By
Master
0 0 1 0 0 0 R/W
D7 D6 D5 D4 D3 D2 D1 D0
Frame 3 Two−Wire Slave Address Byte
ACK By
TMP275
From
TMP275
Frame 4 Data Byte 1 Read Register
…
ACK By
Master
1
9
SCL
(Continued)
SDA
(Continued) ^{D7 D6}
D5 D4 D3 D2 D1 D0
From
TMP275
ACK By
Master
Frame 5 Data Byte 2 Read Register
Stop By
Master
NOTE: Address Pins A0, A1, A2 = 0
Figure 6. Two-Wire Timing Diagram for Read Word Format
ALERT
1
91
9
SCL
SDA
0 0 0 1 1 0 0 R/W
1
0
0
1
0
0
0
S tatu s
Start By
Master
ACK By
TMP275
Frame 1 SMBus ALERT Response Address Byte
From
TMP275
Frame 2 Slave Address Byte
NACK By Stop By
Master Master
NOTE: Address Pins A0, A1, A2 = 0
Figure 7. Timing Diagram for SMBus ALERT
11