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DS1993 查看數據表(PDF) - Dallas Semiconductor -> Maxim Integrated
零件编号
产品描述 (功能)
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DS1993
1kb/4kb Memory iButton
Dallas Semiconductor -> Maxim Integrated
DS1993 Datasheet PDF : 17 Pages
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Figure 6. MEMORY FUNCTIONS FLOW CHART
(Continued)
DS1992/DS1993
From Figure 6
55H
Copy
N
First Part
Scratchpad
?
Y
Bus Master TX
TA1 (T7:T0)
Bus Master TX
TA2 (T15:T8)
Bus Master TX
E/S Byte
Auth-
rization
N
Code Match
?
Y
AA = 1
DS199X TX "1"s
DS199X Copies
Scratchpad Data
To Memory
DS199X TX "0"s
N Bus Master
TX Reset
?
Y
F0H
Y
Read Memory
N?
Bus Master TX
TA1 (T7:T0)
Bus Master TX
TA2 (T15:T8)
DS199X sets Memory
Address = (T15:T0)
Master RX Data
Byte From
Memory Address
DS199X
Increments
Address Counter
Y
Bus Master
TX Reset
?N
Bus Master
N
TX Reset
?
Y
N Memory
Address
= 21Dh ?
Y
Bus Master
RX "1"s
To Figure 6
First Part
8of 8
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