DS1990R-F5# Maxim Integrated Products, DS1990R-F5# Datasheet - Page 8

• Manufacturer Part Number: DS1990R-F5#
• Description: IBUTTON SERIAL NUMBER F5
• Manufacturer: Maxim Integrated Products
• Series: iButton®r

Specifications of DS1990R-F5#

• Rohs Information: IButton RoHS Compliance Plan
• Memory Size: 8B
• Memory Type: ROM
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Serial Number iButton
Figure 7. Read/Write Timing Diagram
8
_______________________________________________________________________________________
WRITE-ONE TIME SLOT
V
WRITE-ZERO TIME SLOT
V
READ-DATA TIME SLOT
V
IHMASTER
IHMASTER
IHMASTER
V
V
V
V
V
V
ILMAX
ILMAX
ILMAX
IHMIN
IHMIN
IHMIN
V
V
V
PUP
PUP
PUP
0V
0V
0V
t
t
t
F
F
F
t
RL
RESISTOR
RESISTOR
RESISTOR
t
W1L
t
MSR
ε
δ
SAMPLING
WINDOW
MASTER
t
W0L
t
t
t
SLOT
SLOT
MASTER
SLOT
MASTER
MASTER
ε
t
REC
t
REC
DS1990R