DS1921Z Maxim, DS1921Z Datasheet - Page 35

• Manufacturer Part Number: DS1921Z
• Description: The DS1921H/Z Thermochron® iButtons® are rugged, self-sufficient systems that measure temperature and record the result in a protected memory section
• Manufacturer: Maxim

Read Memory with CRC (invalid address)
The "32 bytes" are all 00h.
Clear Memory
To verify success, read the Status Register at address 0214h. If MEMCLR is 1, the command was
executed successfully.
Convert Temperature
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.
RST
RST
RST
PD
PD
PD
Select
Select
Select
RMC
CM
CT
FF loop
FF loop
TA
<00 to EOP>
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CRC16\
<32 bytes>
Loop
CRC16\