DS1388_08 datasheet(2/19 Pages) MAXIM

2 / 19 page

I2C RTC/Supervisor with Trickle Charger

and 512 Bytes EEPROM

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ABSOLUTE MAXIMUM RATINGS

RECOMMENDED DC OPERATING CONDITIONS

(TA = -40°C to +85°C, unless otherwise noted.) (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

absolute maximum rating conditions for extended periods may affect device reliability.

Voltage Range on VCC Pin Relative to Ground .....-0.3V to +6.0V

Voltage Range on Inputs Relative

to Ground ...............................................-0.3V to (VCC + 0.3V)

Operating Temperature Range

(noncondensing) .............................................-40°C to +85°C

Storage Temperature Range .............................-55°C to +125°C

Soldering Temperature...........................Refer to the IPC/JEDEC

J-STD-020 Specification.

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

DS1388Z-5

4.5

5.5

DS1388Z-33

2.97

3.3

3.63

Supply Voltage

VCC

(Note 2)

DS1388Z-3

2.7

3.3

Logic 1

VIH

(Note 2)

0.7 x

VCC

VCC +

0.3

Logic 0

VIL

(Note 2)

-0.3

+0.3 x

VCC

Pullup Voltage (SCL, SDA),

VCC = 0V

VPU

5.5

VBACKUP Voltage

VBACKUP

(Note 2)

1.3

3.0

5.5

DS1388Z-5

4.15

4.33

4.50

DS1388Z-33

2.70

2.88

2.97

Power-Fail Voltage

VPF

(Note 2)

DS1388Z-3

2.45

2.60

2.70

DC ELECTRICAL CHARACTERISTICS

(VCC = VCC(MIN) to VCC(MAX), TA = -40°C to +85°C, unless otherwise noted.) (Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

(Notes 3, 4)

250

(Note 5)

2000

Trickle-Charger Current-Limiting

Resistors

(Note 6)

4000

Input Leakage (SCL)

ILI

-1

µA

I/O Leakage (SDA)

ILO

-1

µA

I/O Leakage (RST)ILORST

(Note 7)

-200

+10

µA

SDA Logic 0 Output

(VOL = 0.15 x VCC)

IOLDOUT

3mA

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