DS1921Z-F5# Maxim Integrated Products, DS1921Z-F5# Datasheet - Page 33

• Manufacturer Part Number: DS1921Z-F5#
• Description: IBUTTON THERMOCHRON F5
• Manufacturer: Maxim Integrated Products
• Series: iButton®r

Specifications of DS1921Z-F5#

• Rohs Information: IButton RoHS Compliance Plan
• Memory Size: 512B
• Memory Type: NVSRAM (Non-Volatile SRAM)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 15. Read/Write Timing Diagram
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
Thermochron iButton
ε
t
REC
t
REC
DS1921G
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