DS1631U/T&R Maxim Integrated Products, DS1631U/T&R Datasheet - Page 15
![IC THERMOMETER DIG HI-PREC 8MSOP](/photos/1/39/13936/406-8-msop_sml.jpg)
DS1631U/T&R
Manufacturer Part Number
DS1631U/T&R
Description
IC THERMOMETER DIG HI-PREC 8MSOP
Manufacturer
Maxim Integrated Products
Datasheet
1.DS1631U.pdf
(15 pages)
Specifications of DS1631U/T&R
Function
Thermometer, Thermostat
Topology
ADC (Sigma Delta), Comparator, Register Bank
Sensor Type
Internal
Sensing Temperature
-55°C ~ 125°C
Output Type
I²C™/SMBus™
Output Alarm
Yes
Output Fan
No
Voltage - Supply
2.7 V ~ 5.5 V
Operating Temperature
-55°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
Full Temp Accuracy
+/- 2 C
Digital Output - Bus Interface
Serial (2-Wire)
Digital Output - Number Of Bits
12 bit
Maximum Operating Temperature
+ 125 C
Minimum Operating Temperature
- 55 C
Lead Free Status / RoHS Status
Contains lead / RoHS non-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.