DS28EA00U+ Maxim Integrated Products, DS28EA00U+ Datasheet - Page 26

• Manufacturer Part Number: DS28EA00U+
• Description: IC THERMOMETER 1-WIRE 8-USOP
• Manufacturer: Maxim Integrated Products

Specifications of DS28EA00U+

• Function: Thermometer, Thermostat
• Topology: Register Bank, Scratchpad
• Sensor Type: Internal
• Sensing Temperature: -40°C ~ 85°C
• Output Type: Digital
• Output Alarm: Yes
• Output Fan: No
• Voltage - Supply: 3 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

1-Wire Digital Thermometer with
Sequence Detect and PIO
26
PROGRAMMING
CONVERSION
______________________________________________________________________________________
<n Bytes>
SYMBOL
AA Loop
00 Loop
FF Loop
xx Loop
SELECT
CTEMP
CHAIN
<xxh>
SKIPR
CDRR
RCLE
CPSP
PIOW
PIOR
CRC
WSP
RPM
RSP
RST
PD
Command-Specific 1-Wire Communication Protocol—Color Codes
Command-Specific 1-Wire Communication Protocol—Legend
1-Wire reset pulse generated by master
1-Wire presence pulse generated by slave
Command and data to satisfy the ROM function protocol
ROM function command: “Skip ROM”
ROM function command: “Conditional Read ROM”
Command: “Write Scratchpad”
Command: “Read Scratchpad”
Command: “Copy Scratchpad”
Command: “Convert Temperature”
Command: “Read Power Mode”
Command: “Recall EEPROM”
Command: “PIO Access Read”
Command: “PIO Access Write”
Command : “Chain”
Transfer of n bytes
Transfer of a CRC byte
Transfer of a specific byte value “xx” (hexadecimal notation)
Indefinite loop where the master reads 00 bytes
Indefinite loop where the master reads FF bytes
Indefinite loop where the master reads AA bytes
Indefinite loop where the slave transmits the inverted invalid control byte
A temperature conversion takes place; activity on the 1-Wire bus is permitted only with local V
Data transfer to backup EEPROM; activity on the 1-Wire bus is permitted only with local V
Master-to-Slave
Slave-to-Master
Programming
DESCRIPTION
Conversion
DD
supply
DD
supply