
DS1672
9 of 12
ABSOLUTE MAXIMUM RATINGS*
Voltage on Any Pin Relative to Ground
Operating Temperature
Storage Temperature
Soldering Temperature
-0.5V to +6.0V
-40 C to +85 C
-55 C to +125 C
See J-STD-020A specification
* This is a stress rating only and functional operation of the device at these or any other conditions above
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.
RECOMMENDED DC OPERATING CONDITIONS
PARAMETER
Supply Voltage (DS1672-33)
(DS1672-3)
(DS1672-2)
Logic 1
Logic 0
Backup Supply Voltage
(-40 C to +85 C)
UNITS
V
V
V
V
V
V
SYMBOL
V
CC
V
CC
V
CC
V
IH
V
IL
V
BACKUP
MIN
2.97
2.7
1.8
0.7V
CC
-0.5
1.3
TYP
3.3
3.0
2.0
MAX
3.63
3.3
2.2
V
CC
+ 0.5
0.3V
CC
3.6
NOTES
DC ELECTRICAL CHARACTERISTICS
DS1672-33 (-40 C to +85 C; V
CC
= 2.97 to 3.63V)
PARAMETER
SYMBOL
MIN
Active Supply Current
I
CCA
Standby Current
I
CCS
Power-Fail Voltage
V
PF
2.80
Logic 0 Output (V
OL
= 0.4V)
I
OL
TYP
MAX
600
500
2.97
3
UNITS
A
A
V
mA
NOTES
6
7
2.88
13
DC ELECTRICAL CHARACTERISTICS
DS1672-3
PARAMETER
Active Supply Current
Standby Current
Power-Fail Voltage
Logic 0 Output (V
OL
= 0.4V)
(-40 C to +85 C; V
CC
= 2.7 to 3.3V)
TYP
MAX
600
500
2.6
2.7
3
SYMBOL
I
CCA
I
CCS
V
PF
I
OL
MIN
UNITS
A
A
V
mA
NOTES
6
8
2.5
13
DC ELECTRICAL CHARACTERISTICS
DS1672-2
PARAMETER
Active Supply Current
Standby Current
Power-Fail Voltage
Logic 0 Output
(V
CC
> 2 V; V
OL
= 0.4V)
(V
CC
< 2 V; V
OL
= .2V
CC
)
(-40 C to +85 C; V
CC
= 1.8 to 2.2V)
TYP
MAX
600
500
1.7
1.8
SYMBOL
I
CCA
I
CCS
V
PF
I
OL
MIN
UNITS
A
A
V
NOTES
6
9
1.6
3
3
mA
13