Datasheet

LM75A_4 © NXP B.V. 2007. All rights reserved.
Product data sheet Rev. 04 — 10 July 2007 12 of 24
NXP Semiconductors
LM75A
Digital temperature sensor and thermal watchdog
Fig 5. Write configuration register (1-byte data)
001aad624
1
1SSDA
SCL
001A2A1A0WA 00000001A 000D4D3D2D1D0A P
23456789123456789123456789
START
STOP
write device
acknowledge
device
acknowledge
device
acknowledge
device address pointer byte configuration data byte
Fig 6. Read configuration register including pointer byte (1-byte data)
001aad625
SCL
SDA
(next)
(next)
123456789123456789
device address pointer byte
START
RE-START
write
device
acknowledge
device
acknowledge
00000001A
RS
1S 0 0 1 A2 A1 A0 W A
SCL (cont.)
SDA (cont.)
123456789123456789
device address data byte from device
STOP
read
master not
acknowledged
device
acknowledge
D7 D6 D5 D4 D3 D2 D1 D0 P1001A2A1A0RA NA
Fig 7. Read configuration register with preset pointer (1-byte data)
001aad626
START
S
SCL
SDA
123456789123456789
device address data byte from device
STOP
read
master not
acknowledged
device
acknowledge
D7 D6 D5 D4 D3 D2 D1 D0 P1001A2A1A0RA NA