DS1680

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ABSOLUTE MAXIMUM RATINGS*

Voltage Range on Any Pin Relative to Ground

-0.3V to +7.0V

Operating Temperature Range

0

°C to +70°C

Storage Temperature Range

-55

°C to +125°C

Soldering Temperature Range

See J-STD-020A Specification

*This is a stress rating only and functional operation of the device at these or any other conditions beyond

those indicated in the operation sections of this specification is not implied. Exposure to absolute

maximum rating conditions for extended periods of time can affect reliability.

RECOMMENDED DC OPERATING CONDITIONS

(0

°C to +70°C)

PARAMETER

SYMBOL

MIN

TYP

MAX

UNITS

NOTES

Digital Power Supply Voltage

3.3V Operation

2.97

3.3

3.63

V

Digital Power Supply Voltage

5V Operation

4.5

5.0

5.5

V

Input Logic 1

2.0

V

Input Logic 0

-0.3

+0.8

V

Battery Voltage

2.5

3.7

V

DC ELECTRICAL CHARACTERISTICS

(0

°C to +70°C; V

± 10%)

PARAMETER

SYMBOL

MIN

TYP

MAX

UNITS

NOTES

Input Leakage

-1

+1

µA

CS Leakage

260

µA

7

2.4

V

1

0.4

V

2

Active Supply Current (No Pen Detect)

200

500

µA

3

Active Supply Current (Pen Detected)

5

mA

19

Standby Current

175

300

µA

4

Oscillator Current

300

500

nA

17

Battery Current (Oscillator Off)

100

nA

18

Internal RST Pullup Resistor

25

47

87

k

Ω

4.15

4.33

4.50

V

2.67

2.78

V

12, 20

Pushbutton Detect

0.8

2.0

V

Pushbutton Release

0.3

0.8

V

Output Voltage

V

11

150

mA

13

150

µA

14

PFI Input Threshold

1.15

1.25

1.35

V

PFI Input Leakage

-25

25

nA

PFO

V

PFO

0.4

V