Control/Status

(Read-Write)

Pointer = 00000100

Identification

(Read-Only)

Pointer = 00000111

Pointer Register

(selects register

for communication)

Interface

Data

Address

SMBDAT

SMBCLK

THIGH

(Read-Write)

Pointer = 00000010

TLOW

(Read-Write)

Pointer = 00000011

Temperature

(Read-Only)

Pointer = 00000000

Configuration

(Read-Write)

Pointer = 00000001

16

LM73-Q1

SNIS194 – DECEMBER 2016

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Device Functional Modes (continued)

The LM73-Q1 will always finish a temperature conversion and update the temperature registers before shutting

down.

Writing a “0” to the Full Power Down Bit restores the LM73-Q1 to normal mode. The user should wait at least the

specified maximum conversion time, at the existing resolution setting, before accurate data appears in the

temperature register.

7.5 Register Map

7.5.1 LM73-Q1 Registers

The LM73-Q1's internal registers are selected by the Pointer register. The Pointer register latches the last

location that it was set to. The pointer register and all internal registers are described below. All registers reset at

device power up.

7.5.1.1 Pointer Register

The diagram below shows the Pointer Register, the six internal registers to which it points, and their associated

pointer addresses.

P7

P6

P5

P4

P3

P2

P1

P0

0

0

0

0

0

Register Select