I2C TIMING DIAGRAMS
t(LOW)
tF
tR
t(HDSTA)
SCL
t(SUSTO)
t(HDSTA)
t(HIGH) t(SUSTA)
t(HDDAT)
t(SUDAT)
SDA
t(BUF)
P
S
S
P
FIGURE 4. Two-Wire Timing Diagram.
1
9
1
9
SCL
…
…
SDA
1
1
0
0
1
A2
A1
A0 R/W
0
0
0
0
0
0
P1
P0
Start By
Master
ACK By
TMP75
ACK By
TMP75
Frame 2 Pointer Register Byte
Frame 1 Two-Wire Slave Address Byte
9
1
9
SCL
(Continued)
SDA
(Continued)
D7 D6
D5
D4 D3
D2 D1
D0
D7
D6
D5
D4
D3
D2
D1
D0
ACK By
TMP75
ACK By
TMP75
Stop By
Master
Frame 3 Data Byte 1
Frame 4 Data Byte 2
FIGURE 5. Two-Wire Timing Diagram for TMP75 Write Word Format.
1
9
1
0
9
SCL
SDA
…
…
A7
Start By
A6
A5
A4
A3
A2
A1
A0 R/W
0
0
0
0
0
P1
P0
ACK By
ACK By
Master
TMP175
TMP175
Frame 1 Two-Wire Slave Address Byte
Frame 2 Pointer Register Byte
1
9
1
9
SCL
(Continued)
SDA
(Continued)
D7 D6
D5
D4 D3
D2 D1
D0
D7
D6
D5
D4
D3
D2
D1
D0
ACK By
TMP175
ACK By
TMP175
Stop By
Master
Frame 3 Data Byte 1
Frame 4 Data Byte 2
FIGURE 6. Two-Wire Timing Diagram for TMP175 Write Word Format.
TMP175, 75
10
SBOS288C
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