DS1620S Maxim Integrated Products, DS1620S Datasheet - Page 9
![IC THERMOMETER/STAT DIG 8-SOIC](/photos/6/58/65843/8-soic_21-0262_sml.jpg)
DS1620S
Manufacturer Part Number
DS1620S
Description
IC THERMOMETER/STAT DIG 8-SOIC
Manufacturer
Maxim Integrated Products
Datasheet
1.DS1620.pdf
(12 pages)
Specifications of DS1620S
Function
Thermometer, Thermostat
Topology
Comparator, Register Bank
Sensor Type
Internal
Sensing Temperature
-55°C ~ 125°C
Output Type
Digital
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-SOIC (5.3mm Width), 8-SOP, 8-SOEIAJ
Full Temp Accuracy
+/- 2 C
Digital Output - Bus Interface
Serial (3-Wire)
Digital Output - Number Of Bits
9 bit
Maximum Operating Temperature
+ 125 C
Minimum Operating Temperature
- 55 C
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
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Quantity:
20 000
FUNCTION EXAMPLE
Example: CPU sets up DS1620 for continuous conversion and thermostatic function.
READ DATA TRANSFER Figure 4
CPU MODE
TX
TX
TX
TX
TX
TX
TX
TX
TX
TX
RX
TX
TX
RX
TX
TX
TX
DS1620 MODE
(3-WIRE)
RX
RX
RX
RX
RX
RX
RX
RX
RX
RX
TX
RX
RX
TX
RX
RX
RX
DATA (LSB FIRST)
Toggle
Toggle
Toggle
Toggle
Toggle
Drop
0050h
0014h
0050h
0014h
0Ch
A1h
A2h
EEh
00h
01h
02h
RST
RST
RST
RST
RST
RST
9 of 12
CPU issues Write Config command
CPU sets DS1620 up for continuous
conversion
CPU issues Reset to DS1620
CPU issues Write TH command
CPU sends data for TH limit of +40˚C
CPU issues Reset to DS1620
CPU issues Write TL command
CPU sends data for TL limit of +10˚C
CPU issues Reset to DS1620
CPU issues Read TH command
DS1620 sends back stored value of TH for
CPU to verify
CPU issues Reset to DS1620
CPU issues Read TL command
DS1620 sends back stored value of TL for
CPU to verify
CPU issues Reset to DS1620
CPU issues Start Convert T command
CPU issues Reset to DS1620
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