Datasheet

DS2438
27 of 29
ABSOLUTE MAXIMUM RATINGS*
Voltage on VDD and VAD, Relative to Ground -0.3V to + 12V
Voltage on VSENS+, VSENS-, Relative to Ground <±300 mV
Voltage on Any Other Pin Relative to Ground -0.3V to + 7.0V
Operating Temperature -40°C to +85°C
Storage Temperature -55°C to +125°C
Soldering Temperature 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
(-40°C to +85°C; 2.4V £ VDD £ 10.0V)
PARAMETER SYMBOL CONDITION MIN TYP MAX UNITS NOTES
Supply Voltage V
DD
2.4 10.0 V 1
Data Pin DQ -0.3 +5.5 V 1
DQ Pull-up Voltage 2.4 5.5
DC ELECTRICAL CHARACTERISTICS
(-40°C to +85°C; 2.4V £ VDD £ 10.0V)
PARAMETER SYMBOL CONDITION MIN TYP MAX UNITS NOTES
Input Logic High V
IH
2.0 V 1
Input Logic Low V
IL
-0.3 0.5 V 1
Shutdown Current I
DD1
DQ=0, RTC
Active
25
mA
Active Current I
DD
DQ=1, ICA
Active or
Temperature or
Voltage
Conversions or
EEPROM write
in progress
50 100
mA
Input Resistance R
I
DQ 500
kW
2