DS1993 Maxim, DS1993 Datasheet - Page 14

• Manufacturer Part Number: DS1993
• Description: The DS1992/DS1993 memory iButtons (hereafter referred to as DS199_) are rugged read/write data carriers that act as a localized database, easily accessible with minimal hardware
• Manufacturer: Maxim

Figure 11. READ/WRITE TIMING DIAGRAM (continued)
Write-Zero Time Slot
Read-Data Time Slot
V
V
PULLUP MIN
PULLUP MIN
V
V
V
PULLUP
V
V
PULLUP
V
IL MAX
IH MIN
IL MAX
IH MIN
0V
0V
RESISTOR
MASTER
RESISTOR
MASTER
DS199x
t
LOWR
t
SU
60 µs ≤ t
1 µs ≤ t
0 ≤ t
15µs
t
RELEASE
RDV
60 µs ≤ t
1 µs ≤ t
Sampling Window
LOWR
SLOT
Master
REC
< 45 µs
< 15 µs
LOW0
< 120 µs
60µs
t
t
14 of 17
Sampling Window
SLOT
SLOT
<
∞
t
DS199x
< t
LOW0
SLOT
< 120 µs
t
RELEASE
1 µs ≤ t
t
t
RDV
SU
< 1 µs
= 15 µs
REC
<
∞
t
REC
t
REC
DS1992/DS1993