DS1731U Maxim Integrated Products, DS1731U Datasheet - Page 15

• Manufacturer Part Number: DS1731U
• Description: Board Mount Temperature Sensors
• Manufacturer: Maxim Integrated Products

Specifications of DS1731U

• Full Temp Accuracy: +/- 2 C
• Package / Case: uSOP
• Digital Output - Bus Interface: Serial (2-Wire)
• Digital Output - Number Of Bits: 12 bit
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 55 C
• Output Type: Digital
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

OPERATION EXAMPLE
In this example, the master configures the DS1631/DS1631A/DS1731 (A
conversions and thermostatic function.
*THERMOMETER = DS1631, DS1631A, or DS1731
MASTER
MODE
RX
RX
RX
RX
RX
RX
RX
RX
RX
RX
RX
RX
RX
TX
TX
TX
TX
TX
TX
TX
TX
TX
TX
TX
TX
TX
TX
TX
TX
TX
TX
TX
TX
TX
THERMETER*
MODE
RX
RX
TX
RX
TX
RX
TX
RX
RX
RX
TX
RX
TX
RX
TX
RX
TX
RX
RX
RX
TX
RX
TX
RX
TX
RX
TX
RX
RX
RX
TX
RX
TX
RX
(MSb first)
START
START
START
START
DATA
STOP
STOP
STOP
STOP
ACK
ACK
ACK
ACK
ACK
ACK
ACK
ACK
ACK
ACK
ACK
ACK
ACK
ACh
A1h
A2h
0Ah
90h
02h
90h
28h
00h
90h
00h
90h
51h
15 of 15
START condition from MASTER.
MASTER sends control byte with R/
Acknowledge bit from THERMOMETER.
MASTER sends Access Config command.
Acknowledge bit from THERMOMETER.
MASTER writes a data byte to the configuration register to
put the THERMOMETER in continuous conversion mode
and set the T
Acknowledge bit from THERMOMETER.
STOP condition from MASTER.
START condition from MASTER.
MASTER sends control byte with R/
Acknowledge bit from THERMOMETER.
MASTER sends Access TH command.
Acknowledge bit from THERMOMETER.
MASTER sends most significant data byte for T
Acknowledge bit from THERMOMETER.
MASTER sends least significant data byte for T
Acknowledge bit from THERMOMETER.
STOP condition from MASTER.
START condition from MASTER.
MASTER sends control byte with R/
Acknowledge bit from THERMOMETER.
MASTER sends Access TL command.
Acknowledge bit from THERMOMETER.
MASTER sends most significant data byte for T
Acknowledge bit from THERMOMETER.
MASTER sends least significant data byte for T
Acknowledge bit from THERMOMETER.
STOP condition from MASTER.
START condition from MASTER.
MASTER sends control byte with R/
Acknowledge bit from THERMOMETER.
MASTER sends Start Convert T command.
Acknowledge bit from THERMOMETER.
STOP condition from MASTER.
OUT
polarity to active high.
COMMENTS
1
A
2
A
3
DS1631/DS1631A/DS1731
= 000) for continuous
W ¯ ¯
W ¯ ¯
W ¯ ¯
W ¯ ¯
= 0.
= 0.
= 0.
= 0.
H
L
H
L
= +10°C.
= +10°C.
= +40°C.
= +40°C.