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DS1921 Datasheet(PDF) 35 Page - Dallas Semiconductor

Part # DS1921
Description  High-Resolution Thermochron iButton
PDF  44 Pages
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Manufacturer  DALLAS [Dallas Semiconductor]
Direct Link  https://www.maximintegrated.com/en.html
Logo DALLAS - Dallas Semiconductor

DS1921 Datasheet(HTML) 35 Page - Dallas Semiconductor

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DS1921H/Z
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Read Memory with CRC (invalid address)
RST
PD
Select
RMC
TA
<00 to EOP>
CRC16\
<32 bytes>
CRC16\
The "32 bytes" are all 00h.
Clear Memory
RST
PD
Select
CM
FF loop
To verify success, read the Status Register at address 0214h. If MEMCLR is 1, the command was
executed successfully.
Convert Temperature
RST
PD
Select
CT
FF loop
To read the result and to verify success, read the addresses 0211h (result) and the Device Samples
Coun??ter at address 021Dh to 021Fh. If the count has incremented, the command was executed
successfully.
Loop



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