MAX690 datasheet(2/17 Pages) MAXIM

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I2C-Compatible RTC in a TDFN

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ABSOLUTE MAXIMUM RATINGS

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.

VCC to GND ..............................................................-0.3V to +6V

All Other Pins to GND ................................-0.3V to (VCC + 0.3V)

Input Current

All Pins ............................................................................20mA

Output Current

All Outputs .......................................................................20mA

Rate of Rise, VCC ............................................................100V/µs

Continuous Power Dissipation (TA = +70°C)

6-Pin TDFN (derate 24.4mW/°C above +70°C) .......1951.0mW

Operating Temperature Range ...............................TMIN to TMAX

MAX6900 ETT-T .......................TMIN = -40°C, TMAX = +85°C

Junction Temperature .....................................................+150°C

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

ESD Protection (all pins, Human Body model) ..................2000V

Lead Temperature (soldering, 10s) ...…………………….+300°C

DC ELECTRICAL CHARACTERISTICS

(VCC = +2.0V to +5.5V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = +3.3V, TA = +25°C.) (Note 1)

AC ELECTRICAL CHARACTERISTICS

(VCC = +2.0V to +5.5V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = +3.3V, TA = +25°C.) (Notes 1, 6)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Operating Voltage Range

VCC

5.5

VCC = +2.0V

Active Supply Current (Note 2)

ICC

VCC = +5.0V

110

µA

VCC = +2.0V

0.225

0.630

Timekeeping Supply Current

(Note 3)

ITK

VCC = +5.0V

1.2

1.7

µA

2-WIRE DIGITAL INPUTS SCL, SDA

Input High Voltage

VIH

0.7 x VCC

Input Low Voltage

VIL

0.3 x

VCC

Input Hysteresis (Note 5)

VHYS

0.05 x

VCC

Input Leakage Current (Note 4)

0 < VIN < VCC

-10

Input Capacitance (Note 5)

2-WIRE DIGITAL OUTPUT SDA

Output Low Voltage

VOL

ISINK = 4mA

0.4

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

OSCILLATOR

X1 to Ground Capacitance

X2 to Ground Capacitance

FAST I

2C-BUS-COMPATIBLE TIMING

SCL Clock Frequency

fSCL

400

kHz

Bus Free Time Between STOP

and START Condition (Note 4)

tBUF

1.3

µs

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