DS1238
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ABSOLUTE MAXIMUM RATINGS*
Voltage on V
CC
Pin Relative to Ground -0.5V to +7.0V
Voltage on I/O Relative to Ground -0.5V to V
CC
+ 0.5V
Voltage on IN Pin Relative to Ground -3.5V to V
CC
+ 0.5V
Operating Temperature 0°C to 70°C
Operating Temperature (Industrial Version) -40°C to +85°C
Storage Temperature -55°C to +125°C
Soldering Temperature 260°C for 10 seconds
*
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 (0°C to 70°C)
PARAMETER SYMBOL MIN TYP MAX UNITS NOTES
Supply Voltage V
CC
4.5 5.0 5.5 V 1
Supply Voltage (5% Option) V
CC
4.75 5.0 5.5 V 1
Input High Level V
IH
2.0 V
CC
+0.3 V 1
Input Low Level V
IL
-0.3 +0.8 V 1
IN Input Pin V
IN
0V
CC
V1
Battery Input V
BAT
2.7 4.0 V 1
DC ELECTRICAL CHARACTERISTICS (0°C to 70°C; V
DD
= 5V ± 10%)
PARAMETER SYMBOL MIN TYP MAX UNITS NOTES
Supply Current I
CC
4mA2
Battery Current I
BAT
0 200 nA 2, 12
Supply Output Current
(V
CCO
=V
CC
- 0.3V)
I
CC01
100 mA 3
Supply Out Current (V
CC
< V
BAT
)I
CC02
1mA4
Supply Output Voltage V
CCO
V
CC
-0.3 V 1
Battery Back Voltage V
CCO
V
BAT
-0.8 V 6
Low Level @ RST V
OL
0.4 V 1
Output Voltage @ -500 µA
V
OH
V
CC
-0.5V V
CC
-0.1V V 1
CEO and PF Output
V
OHL
V
BAT
-0.8 V 6
Input Leakage Current I
LI
-1.0 +1.0
µA
121
Output Leakage Current I
LO
-1.0 +1.0
µA
Output Current @ 0.4V I
OL
4.0 mA 9
Output Current @ 2.4V I
OH
-1.0 mA 10
Power Sup. Trip Point V
CCTP
4.25 4.37 4.50 V 1
Power Supply Trip (5% Option) V
CCTP
4.50 4.62 4.75 V
IN Input Pin Current I
CCIN
-1.0 +1.0
µA
IN Input Trip Point V
TP
1.15 1.27 1.35 V 1
