DS1990A-F5+ Maxim Integrated Products, DS1990A-F5+ Datasheet - Page 8

• Manufacturer Part Number: DS1990A-F5+
• Description: IBUTTON SERIAL NUMBER F5
• Manufacturer: Maxim Integrated Products
• Series: iButton®r
• Type: Serial Number IButtonr

Specifications of DS1990A-F5+

• Rohs Information: IButton RoHS Compliance Plan
• Memory Size: 8B
• Memory Type: ROM
• Maximum Operating Temperature: + 85 C
• Package / Case: F5 MicroCan
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Ic Function: Serial Number IButton IC
• Supply Voltage Range: 2.8V To 6V
• Operating Temperature Range: -40°C To +85°C
• Digital Ic Case Style: F5 IButton
• Filter Terminals: SMD
• Supply Voltage Max: 6V
• Rohs Compliant: Yes
• 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
DS1990A