DS28E02 Maxim, DS28E02 Datasheet - Page 18

• Manufacturer Part Number: DS28E02
• Description: The DS28E02 combines 1024 bits of EEPROM with challenge-and-response authentication security implemented with the FIPS 180-3 Secure Hash Algorithm (SHA-1)
• Manufacturer: Maxim

Figure 12. Read/Write Timing Diagrams
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
ABRIDGED DATA SHEET
t
RL
RESISTOR
t
RESISTOR
RESISTOR
W1L
t
MSR
ε
δ
1-Wire SHA-1 Authenticated 1Kb
SAMPLING
EEPROM with 1.8V Operation
WINDOW
MASTER
t
W0L
t
t
t
SLOT
SLOT
SLOT
MASTER
MASTER
MASTER
ε
t
REC
t
REC
DS28E02
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