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Número de pieza
componentes Descripción
DS1992 Ver la hoja de datos (PDF) - Maxim Integrated
Número de pieza
componentes Descripción
Fabricante
DS1992
1Kb/4Kb Memory iButton
Maxim Integrated
DS1992 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
Authorization
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
8 of 17
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