DS32KHZ Просмотр технического описания (PDF) - Dallas Semiconductor -> Maxim Integrated
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DS32KHZ Datasheet PDF : 8 Pages
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DS32kHz
ABSOLUTE MAXIMUM RATINGS
Voltage Range on Any Pin Relative to Ground………………………………………………………………-3.0V to +7.0V
Operating Temperature Range (Noncondensing)
Commercial:…………………………………………………………………………………………………..0°C to +70°C
Industrial:……………………………………………………………………………………………………-40°C to +85°C
Storage Temperature Range………………………………………………………………………………….-40°C to +85°C
Soldering Temperature (BGA, SO)……………………….See the Handling, PC Board Layout, and Assembly section.
Soldering Temperature, Leads (DIP)……………………………………………………..+260°C for 10 seconds (Note 1)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only,
and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is
not implied. Exposure to the absolute maximum rating conditions for extended periods may affect device reliability.
RECOMMENDED DC OPERATING CONDITIONS
(TA = -40°C to +85°C) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
Power-Supply Voltage
VCC
(Note 2)
Battery Voltage
VBAT
(Notes 2, 3)
MIN TYP MAX UNITS
4.5 5.0 5.5
V
2.7
3.0
3.5,
5.5
V
DC ELECTRICAL CHARACTERISTICS
(Over the operating range, unless otherwise specified.) (Note 1)
PARAMETER
Active Supply Current
Battery Input-Leakage Current
High Output Voltage (VCC)
Low Output Voltage
High Output Voltage (VBAT)
Battery Switch Voltage
SYMBOL
ICC
IBATLKG
VOH
VOL
VOH
VSW
CONDITIONS
VBAT = 0V or
2.7V ≤ VBAT ≤ 3.5V
(Notes 3, 4)
VCC MIN ≤ VCC ≤ VCC MAX
IOH = -1.0mA (Note 2)
IOL = 2.1mA (Note 2)
IOH = -0.1mA (Note 2)
(Note 2)
MIN TYP MAX UNITS
150 220
μA
-50
+50
nA
2.4
V
0.4
V
2.4
V
VBAT
V
(VCC = 0V, TA = -40°C to +85°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Active Battery Current
Battery Current During
Temperature Measurement
IBAT
IBATCNV
VBAT = 3.3V (Notes 4, 5, 6)
VBAT = 3.3V (Notes 4, 5, 7)
1
4
μA
450
μA
Note 1:
Note 2:
Note 3:
Note 4:
Note 5:
Note 6:
Note 7:
Limits at -40°C are guaranteed by design and are not production tested.
All voltages are referenced to ground.
VBAT must be no greater than 3.5V when the device is used in the dual-supply operating modes.
Typical values are at +25°C and 5.0V VCC, 3.0 VBAT, unless otherwise indicated.
These parameters are measured under no output load conditions.
This current is the active-mode current sourced from the backup supply/battery.
A temperature conversion lasts 122ms (typ) and occurs on power-up and then once every 64 seconds.
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