DS1372U+T&R【PDF 5/12 页】IC BINARY COUNTER 32-BIT 8-USOP

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Sheet目录1993

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DS1372

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

RECOMMENDED DC ELECTRICAL CHARACTERISTICS

(VCC = 2.4V to 5.5V, 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 Any Pin Relative to Ground…. .-0.3V to +6.0V

Continuous Power Dissipation (TA = +70°C)

(derate 4.5mW/°C above +70°C) ……………………. ....360mW

Operating Temperature Range

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

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

Soldering Temperature………….......See IPC/JEDEC J-STD-020

specification.

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Operating voltage range (Notes 2 and 3)

2.4

5.5

Supply Voltage

VCC

Timekeeping operating range

(Notes 2 and 4)

1.3

5.5

Active Supply Current

ICCA

(Note 3)

μA

SQW = 32kHz

600

1300

Standby Current

(Oscillator Enabled)

ICCS

EOSC = 0

(Notes 4 and 5)

SQW = 0

400

800

Data Retention

(Oscillator Disabled)

IDDR

EOSC = 1 (Note 4)

100

Input Logic 1

AD0, SCL, SDA

VIH

(Note 2)

0.7 x

VCC

VCC +

0.3

Input Logic 0

AD0, SCL, SDA

VIL

(Note 2)

-0.3

0.3 x

VCC

Input Leakage

AD0, SCL, SDA, SQW/

INT

ILI

SDA, SQW/

INT high impedance

-1

μA

VOL = 0.4V (VCC > 2.4V), SDA, SQW/

INT

Output Logic 0

IOL

VOL = 0.2VCC (1.3V < VCC < 2.4V), SQW/

INT

0.250

ELECTRICAL CHARACTERISTICS

(VCC = 2.4V to 5.5V, TA = -40°C to +85°C, unless otherwise noted.) (Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Fast mode

100

400

SCL Clock Frequency (Note 6)

fSCL

Standard mode

0.04

100.00

kHz

Fast mode

1.3

Bus-Free Time Between a STOP

and START Condition

tBUF

Standard mode

4.7

μs

Fast mode

0.6

Hold Time (Repeated) START

Condition (Note 7)

tHD:STA

Standard mode

4.0

μs

Fast mode

1.3

Low Period of SCL Clock

tLOW

Standard mode

4.7

μs

Fast mode

0.6

High Period of SCL Clock

tHIGH

Standard mode

4.0

μs

Fast mode

0.6

Setup Time for Repeated START

Condition

tSU:STA

Standard mode

4.7

μs

Fast mode

0.9

Data Hold Time (Notes 8 and 9)

tHD:DAT

Standard mode

μs

I2C, 32-Bit, Binary Counter Clock with 64-Bit ID

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