DS1312 データシートの表示（PDF） - Unspecified
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DS1312 Datasheet PDF : 10 Pages
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DS1312
Nonvolatile Controller with Lithium
Battery Monitor
ABSOLUTE MAXIMUM RATINGS*
Voltage on Any Pin Relative to Ground
Operating Temperature
Storage Temperature
Soldering Temperature
-0.5V to +7.0V
-40℃ to +85℃
-55℃ to +125℃
260℃ for 10 seconds
* This is a stress rating only and functional operation of the device at these of 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℃ to +85℃)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
Supply Voltage TOL=GND
VCCI
4.75
5.0
5.5
V
1
Supply Voltage TOL=VCCO
VCCI
4.5
5.0
5.5
V
1
Battery Supply Voltage
VBAT
2.0
6.0
V
1
Logic 1 Input
VIH
2.0
VCCI+0.3 V
1,12
Logic 0 Input
VIL
-0.3
+0.8
V
1,12
DC ELECTRICAL CHARACTERISTICS
PARAMETER
SYMBOL
Operating Current (TTL inputs)
ICC1
Operating Current (CMOS inputs)
ICC2
RAM Supply Current (VCCO≥VCCI-0.2V)
ICCO1
RAM Supply Current (VCCO≥VCCI -0.3V)
ICCO1
Vcc Trip Point (TOL = GND)
VCCTP
Vcc Trip Point (TOL=VCCO)
VCCTP
VBAT Trip Point
VBTP
Vcc/VBAT Switch Point
VSW
Output Current @ 2.4V
IOH
Output Current @ 0.4V
IOL
Input Leakage
IIL
Output Leakage
ILO
Battery Monitoring Test Load
RINT
(-40℃ to +85℃; VCCI>VCCTP)
MIN
TYP
MAX
UNITS
NOTES
200
400
µA
2
50
100
µA
2,5
140
mA
3
200
mA
4
4.50
4.62
4.75
V
1
4.25
4.37
4.50
V
1
2.5
2.6
2.7
V
1
2.6
2.7
2.8
V
1
-1
mA
7,10
4
mA
7,10
-1.0
+1.0
µA
-1.0
+1.0
µA
0.8
1.2
1.5
MΩ
DC ELECTRICAL CHARACTERISTICS (-40℃ to +85℃; VCCI < VBAT; VCCI <VSW)
PARAMETER
SYMBOL
MIN
TYP
Battery Current
IBAT
Battery Backup Current
ICCO2
Supply Voltage
VCCO
VBAT -0.2
Output
VOHL
VBAT -0.2
MAX
100
500
UNITS
nA
µA
V
V
NOTES
2
6
1
1,8
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