DS1221 Datasheet, PDF (4/8 Pages) Dallas Semiconductor – Nonvolatile Controller x 4 Chip

ABSOLUTE MAXIMUM RATINGS*
Voltage on Any Pin Relative to Ground
Operating Temperature
Storage Temperature
Soldering Temperature
Short Circuit Output Current
-0.3V to +7.0V
0°C to 70°C
-55°C to +125°C
260°C for 10 seconds
20 mA
DS1221
* 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
SYMBOL MIN
TYP
Supply Voltage
Logic 1 Input
Logic 0 Input
Battery Input
V_CCI
4.5
5.0
V_IH
2.2
V_IL
-0.3
V_BAT1,
2.0
V_BAT2
MAX
5.5
V_CC+0.3
+0.8
4.0
(0°C to 70°C)
UNITS NOTES
V
1
V
1
V
1
V
1, 2
DC ELECTRICAL CHARACTERISTICS
PARAMETER
SYMBOL MIN
Supply Current
Supply Voltage
Supply Current
Input Leakage
Output Leakage
CE0 - CE3 , DQ
I_CCI
V_CCO
I_CCO1
I_IL
I_LO
I_OH
V_CC-0.2
-1.0
-1.0
-1.0
Output @ 2.4V
CE0 - CE3 , DQ
I_OL
Output @ 0.4V
V_CC Trip Point
V_CCTP
4.25
PARAMETER
CE0 - CE3 Output
V_BAT1 or V_BAT2
Battery Current
Battery Backup Current
@ V_CCO = V_BAT - 0.5V
SYMBOL
V_OHL
I_BAT
MIN
V_CC-0.2
V_BAT-0.2
I_CCO2
(0°C to 70°C; V_CC = 4.5 to 5.5V)
TYP
MAX UNITS NOTES
5
mA
3
V
1
80
mA
4, 10
+1.0
µA
+1.0
µA
mA
5
4.0
mA
5
4.37
4.50
V
1
(0°C to 70°C; V_CC < 4.25V)
TYP
MAX UNITS NOTES
V
0.1
µA
3
100
µA 6, 7, 10
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