DS1825U+ Maxim Integrated Products, DS1825U+ Datasheet - Page 15

• Manufacturer Part Number: DS1825U+
• Description: IC THERMOMETER DIGITAL 8-USOP
• Manufacturer: Maxim Integrated Products

Specifications of DS1825U+

• Function: Thermometer, Thermostat
• Topology: Register Bank, Scratchpad
• Sensor Type: Internal
• Sensing Temperature: -55°C ~ 125°C
• Output Type: Digital
• Output Alarm: Yes
• Output Fan: No
• Voltage - Supply: 3 V ~ 3.7 V
• Operating Temperature: -55°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
• Temperature Threshold: Programmable
• Full Temp Accuracy: +/- 0.5 C
• Digital Output - Bus Interface: 1-Wire
• Digital Output - Number Of Bits: 9 bit to 12 bit
• Supply Voltage (max): 3.7 V
• Supply Voltage (min): 3 V
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 55 C
• Supply Current: 1.5 mA
• Ic Output Type: Digital
• Sensing Accuracy Range: ± 0.5°C
• Supply Voltage Range: 3V To 3.7V
• Resolution (bits): 12bit
• Sensor Case Style: µSOP
• No. Of Pins: 8
• Accuracy %: 0.5°C
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

SUGGESTED PROCEDURE FOR BUILDING CROSS-REFERENCE TABLE
This procedure uses the Search ROM command to find all DS1825s on the one-wire bus (16 maximum) and then
reads each configuration register to match the ROMIDs to the hard-wired addresses.
Figure 13
Increment Counter
N = N + 1
ROMIDs on bus &
to Crossreference
Address and Add
Match ROMID to
Recall EEPROM
(F0h command)
store ROMIDs
(use AD3-AD0
Next ROMID
from Config
Search all
N>Nmax?
Master Tx
Register)
Table
N
Nmax is the number
of ROMIDs found
15 of 21
CROSSREFERENCE
ROMIDS AND 4-BIT
Y
TABLE USING
ADDRESSES
BUILDING
Note: Temperature sensors are addressed by
ROMID(12)
ROMID(13)
ROMID(14)
ROMID(15)
ROMID(0)
ROMID(1)
ROMID(2)
ROMID(3)
ROMID, not by binary address
ROMID
Crossreference Table
DONE
AD3-AD0
0000
0001
0010
0011
1100
1101
1110
1111