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LM75B
All information provided in this document is subject to legal disclaimers.
?NXP B.V. 2014. All rights reserved.
Product data sheet
Rev. 5  22 January 2014
14 of 37
NXP Semiconductors
LM75B
Digital temperature sensor and thermal watchdog
 
 
 
Fig 7.    Write configuration register (1-byte data)
1   24
1
1
S
DA
CL
0   0   1   A2  A1  A0 W  A
0   0   0   0   0   0   0   1   A    0   0   0   D4  D3  D2  D1  D0  A
P
2   3   4   5   6   7   8   9   1   2   3   4   5   6   7   8   9   1   2   3   4   5   6   7   8   9
START
STOP
write
device
acknowledge
device
acknowledge
device
kn wl
device address
pointer byte
configuration data byte
Fig 8.    Read configuration register including pointer byte (1-byte data)
1
2
SCL
SDA
(next)
(next)
1    2    3    4    5    6    7    8    9    1    2    3    4    5    6    7    8    9
device address
pointer byte
START
RE-START
write
device
acknowledge
device
acknowledge
0    0    0    0    0    0    0    1    A
RS
1
S
0    0    1   A2  A1  A0  W   A
CL (cont.)
DA (cont.)
1    2    3    4    5    6    7    8    9    1    2    3    4    5    6    7    8    9
device address
data byte from device
STOP
read
master not
acknowledged
device
acknowled e
D7  D6  D5  D4  D3  D2  D1  D0
P
1    0    0    1   A2  A1  A0  R    A
NA
Fig 9.    Read configuration or temp register with preset pointer (1-byte data)
START
S
CL
DA
1    2    3    4    5    6    7    8    9    1    2    3    4    5    6    7    8    9
device address
data byte from device
STOP
read
master not
acknowledged
device
kn wl
D7  D6  D5  D4  D3  D2  D1  D0
P
1    0    0    1   A2  A1  A0  R    A
NA
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