DS1825U+ Maxim Integrated Products, DS1825U+ Datasheet - Page 13

• 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

Figure 11. ROM COMMANDS FLOW CHART
SERIAL NUMBER
FAMILY CODE
READ ROM
COMMAND
CRC BYTE
DS1825 T
DS1825 T
DS1825 T
6 BYTES
1 BYTE
33h
Y
X
X
X
Initialization
Sequence
N
MATCH ROM
MASTER T
MASTER T
MASTER T
COMMAND
MATCH?
MATCH?
MATCH?
BIT 63
BIT 0
BIT 0
BIT 1
BIT 63
BIT 1
55h
Y
Y
Y
Y
MASTER T
X
RESET PULSE
X
X
PRESENCE
MASTER T
COMMAND
DS1825 T
N
PULSE
N
N
N
X
ROM
X
X
(FIGURE 12)
MASTER T
COMMAND
FUNCTION
N
N
N
DS1825 T
MASTER T
MASTER T
DS1825 T
DS1825 T
DS1825 T
MASTER T
DS1825 T
DS1825 T
13 of 21
SEARCH ROM
COMMAND
MATCH?
MATCH?
Y
Y
MATCH?
BIT 0
BIT 1
BIT 63
X
F0h
X
X
X
X
X
X
BIT 63
X
X
Y
X
BIT 0
BIT 0
BIT 63
BIT 63
BIT 0
BIT 1
BIT 1
Y
BIT 1
N
MASTER T
ALARM SEARCH
DS1825 T
DS1825 T
WITH ALARM
COMMAND
FLAG SET?
DEVICE(S)
ECh
X
X
X
Y
Y
BIT 0
BIT 0
BIT 0
N
N
COMMAND
SKIP ROM
CCh
Y
N