DS1306 datasheet(16/21 Pages) DALLAS

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DS1306

16 of 21

DC ELECTRICAL CHARACTERISTICS

(TA = Over the operating range, unless otherwise specified.)

PARAMETER

SYMBOL

MIN

TYP

MAX

UNITS

NOTES

Input Leakage

ILI

-100

+500

Output Leakage

ILO

-1

IOL = 1.5mA

VCC = 2.0

0.4

Logic 0 Output

IOL = 4.0mA

VOL

VCC = 5V

0.4

IOH = -0.4mA

VCCIF = 2.0V

1.6

Logic 1 Output

IOH = -1.0mA

VOH

VCCIF = 5V

2.4

Logic 1 Output Current

(INT1 pin)

IOH,

INT1

(VCC2, VBAT)

-0.3V

-100

VCC1 = 2.0V

0.425

VCC1 Active Supply Current

ICC1A

VCC1 = 5V

1.28

2, 7

VCC1 = 2.0V

25.3

VCC1 Timekeeping Current

ICC1T

VCC1 = 5V

1, 7

VCC2 = 2.0V

0.4

VCC2 Active Supply Current

ICC2A

VCC2 = 5V

1.2

2, 8

VCC2 = 2.0V

0.4

VCC2 Timekeeping Current

ICC2T

VCC2 = 5V

1, 8

Battery Timekeeping Current

IBAT

VBAT = 3V

550

Battery Timekeeping Current

(IND)

IBAT

VBAT = 3V

800

VCC Trip Point

VCCTP

VBAT -

VBAT +

200

Trickle Charge Resistors

Trickle Charger Diode Voltage

Drop

VTD

0.7

CAPACITANCE

(TA = +25

°C)

PARAMETER

SYMBOL

MIN

TYP

MAX

UNITS

NOTES

Input Capacitance

Output Capacitance

Crystal Capacitance

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