Datasheet

DS1985
24 of 26
ABSOLUTE MAXIMUM RATINGS*
Voltage on any Pin Relative to Ground -0.5V to +12.0V
Operating Temperature -40°C to +85°C
Storage Temperature -55°C to +125°C
 This is a stress rating only and functional operation of the device at these or any other conditions
outside those indicated in the operation sections of this specification is not implied. Exposure to
absolute maximum rating conditions for extended periods of time may affect reliability.
DC ELECTRICAL CHARACTERISTICS (V
PUP
=2.8V to 6.0V; -40°C to +85°C)
PARAMETER SYMBOL MIN TYP MAX UNITS NOTES
Logic 1
V
IH
2.2 V 1,6
Logic 0
V
IL
-0.3 +0.8 V 1,10
Output Logic Low @ 4 mA
V
OL
0.4 V 1
Output Logic High
V
OH
V
PUP
6.0 V 1,2
Input Load Current
I
L
5
A
3
Operating Charge
Q
OP
30 nC 7,8
Programming Voltage @ 10 mA
V
PP
11.5 12.0 V
CAPACITANCE (T
A
= 25C)
PARAMETER SYMBOL MIN TYP MAX UNITS NOTES
Data (1-Wire)
C
IN/OUT
800 pF 9
AC ELECTRICAL CHARACTERISTICS (V
PUP
=2.8V to 6.0V; -40C to +85C)
PARAMETER SYMBOL MIN TYP MAX UNITS NOTES
Time Slot
t
SLOT
60 120
s
Write-1 Low Time
t
LOW1
1 15
s
Write-0 Low Time
t
LOW0
60 120
s
Read Data Valid
t
RDV
exactly 15
s
Release Time
t
RELEASE
0 15 45
s
Read Data Setup
t
SU
1
s
5
Recovery Time
t
REC
1
s
Reset Time High
t
RSTH
480
s
4
Reset Time Low
t
RSTL
480
s
Presence Detect High
t
PDHIGH
15 60
s
Presence Detect Low
t
PDLOW
60 240
s
Delay to Program
t
DP
5
s
Delay to Verify
t
DV
5
s
Program Pulse Width
t
PP
480
s
Program Voltage Rise Time
t
RP
0.5 5.0
s
Program Voltage Fall Time
t
FP
0.5 5.0
s