ISL12008IB8Z 查看數據表（PDF） - Renesas Electronics

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ISL12008IB8Z

I2C Real Time Clock with Battery Backup

Renesas Electronics 

ISL12008 I2C Real Time Clock with Battery Backup

Absolute Maximum Ratings

Voltage on VDD, VBAT, SCL, SDA, and FT/OUT Pins

(Respect to GND). . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to 6.5V

Voltage on X1 and X2 Pins

(Respect to GND)

VDD Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to VDD + 0.5

VBAT Mode . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to VBAT + 0.5

Thermal Information

Thermal Resistance (Typical, Note 1) . . . . . . . . . . . . . . . JA (°C/W)

8 Lead SOIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C

Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below

http://www.intersil.com/pbfree/Pb-FreeReflow.asp

CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product reliability and

result in failures not covered by warranty.

NOTE:

1. JA is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details.

DC Operating Characteristics – RTC Temperature = -40°C to +85°C. Recommended Operating Conditions, unless

otherwise specified.

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

(Note 8) (Note 5) (Note 8) UNITS

VDD

VBAT

IDD1

IDD2

IDD3

IBAT

ILI

ILO

VTRIP

VTRIPHYS

VBATHYS

FT/OUT

Main Power Supply

Battery Supply Voltage

Supply Current

Supply Current With I2C Active

Supply Current (Low Power Mode)

Battery Supply Current

Input Leakage Current on SCL

I/O Leakage Current on SDA

VBAT Mode Threshold

VTRIP Hysteresis

VBAT Hysteresis

VDD = 5V

VDD = 3V

VDD = 5V

VDD = 5V, LPMODE = 1

VBAT = 3V, +25°C

2.7

5.5

V

1.8

5.5

V

2.8

6

µA

1.6

4

µA

40

120

µA

2.3

5

µA

800

950

nA

-1

0.1

+1

µA

-1

0.1

+1

µA

2.3

2.6

2.9

V

36

mV

53

mV

VOL

Output Low Voltage

VDD = 5V

IOL = 3mA

VDD = 2.7V

IOL = 1mA

0.02

0.4

V

0.02

0.4

V

Power-Down Timing

Temperature = -40°C to +85°C. Recommended Operating Conditions unless otherwise specified.

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

(Note 8) (Note 5) (Note 8) UNITS

VDD SR-

VDD Negative Slewrate

5

V/ms

NOTES

2, 3

2, 3

2

2

6

6

NOTES

4

Serial Interface Specifications Recommended Operating Conditions. Unless otherwise specified.

SYMBOL

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

(Note 8) (Note 5) (Note 8) UNITS NOTES

SERIAL INTERFACE SPECS

VIL

SDA and SCL Input Buffer LOW Voltage

-0.3

0.3 x VDD V

VIH

SDA and SCL Input Buffer HIGH Voltage

0.7 x VDD

VDD + 0.3 V

Hysteresis SDA and SCL Input Buffer Hysteresis

0.05 x

VDD

V

6, 7

VOL SDA Output Buffer LOW Voltage, Sinking 3mA

0

0.02

0.4

V

Cpin SDA and SCL Pin Capacitance

TA = +25°C, f = 1MHz, VDD = 5V,

VIN = 0V, VOUT = 0V

10

pF

6, 7

FN6690 Rev 1.00

Sep 26, 2008

Page 3 of 19

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