DS1922E Maxim, DS1922E Datasheet - Page 36

• Manufacturer Part Number: DS1922E
• Description: The DS1922E temperature logger iButton is a rugged, self-sufficient system that measures temperature and records the result in a protected memory section
• Manufacturer: Maxim

High-Temperature Logger iButton with 8KB
Data-Log Memory
Figure 13. Read/Write Timing Diagrams
36
______________________________________________________________________________________
WRITE-ONE TIME SLOT
V
WRITE-ZERO TIME SLOT
V
READ-DATA TIME SLOT
V
IHMASTER
IHMASTER
IHMASTER
V
V
V
ILMAX
ILMAX
ILMAX
V
V
V
PUP
V
PUP
V
PUP
V
V
V
V
0V
0V
0V
TH
TH
TH
TL
TL
TL
t
t
t
F
F
F
t
RL
RESISTOR
t
RESISTOR
RESISTOR
W1L
t
MSR
ε
δ
SAMPLING
WINDOW
MASTER
t
W0L
t
t
t
SLOT
SLOT
SLOT
MASTER
MASTER
MASTER
ε
t
REC
t
REC
DS1922E