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DS1921 датащи(PDF) 34 Page - Dallas Semiconductor

номер детали DS1921
подробное описание детали  High-Resolution Thermochron iButton
PDF  44 Pages
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производитель  DALLAS [Dallas Semiconductor]
домашняя страница  https://www.maximintegrated.com/en.html
Logo DALLAS - Dallas Semiconductor

DS1921 датащи(HTML) 34 Page - Dallas Semiconductor

Back Button DS1921 Datasheet HTML 30Page - Dallas Semiconductor DS1921 Datasheet HTML 31Page - Dallas Semiconductor DS1921 Datasheet HTML 32Page - Dallas Semiconductor DS1921 Datasheet HTML 33Page - Dallas Semiconductor DS1921 Datasheet HTML 34Page - Dallas Semiconductor DS1921 Datasheet HTML 35Page - Dallas Semiconductor DS1921 Datasheet HTML 36Page - Dallas Semiconductor DS1921 Datasheet HTML 37Page - Dallas Semiconductor DS1921 Datasheet HTML 38Page - Dallas Semiconductor Next Button
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DS1921H/Z
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Command-Specific 1-Wire Communication Protocol — Color Codes
Master to slave
Slave to master
Write Scratchpad, reaching the end of the Scratchpad
RST
PD
Select
WS
TA
<data to EOS>
CRC16\
FF loop
Write Scratchpad, not reaching the end of the Scratchpad
RST
PD
Select
WS
TA
<data>
RST
PD
Read Scratchpad
RST
PD
Select
RS
TA-E/S
<data to EOS>
CRC16\
FF loop
Copy Scratchpad (success)
RST
PD
Select
CPS
TA-E/S
AA loop
Copy Scratchpad (invalid TA-E/S)
RST
PD
Select
CPS
TA-E/S
FF loop
Read Memory (success)
RST
PD
Select
RM
TA
<data to EOM>
00 loop
Read Memory (invalid address)
RST
PD
Select
RM
TA
00 loop
Reading reserved pages 20 through 63 or 68 through 127 or pages 192 and higher (beyond datalog
memory) will result in 00h bytes.
Read Memory with CRC (success)
RST
PD
Select
RMC
TA
<data to EOP>
CRC16\
<32 bytes>
CRC16\
The "32 bytes" are either valid page data or 00h bytes when reading reserved pages 20 through 63 or 68
through 127 or pages 192 and higher (beyond datalog memory).
Loop



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