DS1672-2 View Datasheet(PDF) - Maxim Integrated

Part Name

Description

Manufacturer

DS1672-2

I2C 32-Bit Binary Counter RTC

Maxim Integrated 

AC ELECTRICAL CHARACTERISTICS

PARAMETER SYMBOL CONDITION MIN

SCL Clock

Frequency

fSCL

Fast Mode

100

Standard Mode

DS1672

(-40°C to +85°C; VCC > VPF)

TYP MAX UNITS NOTES

400 kHz

100

Bus Free Time

tBUF

Fast Mode

1.3

µs

Between a STOP

and START

Standard Mode 4.7

Condition

Hold Time

tHD:STA

Fast Mode

0.6

(Repeated) START

Condition

Standard Mode 4.0

µs

2

LOW Period of

tLOW

Fast Mode

1.3

µs

SCL Clock

Standard Mode 4.7

HIGH Period of

tHIGH

Fast Mode

0.6

µs

SCL Clock

Standard Mode 4.0

Set-up Time for a

tSU:STA

Fast Mode

0.6

µs

Repeated START

Condition

Standard Mode 4.7

Data Hold Time

tHD:DAT

Fast Mode

0

Standard Mode

0

0.9

µs

3, 4

Data Set-up Time

tSU:DAT

Fast Mode

100

Standard Mode 250

µs

11

Rise Time of Both

SDA and SCL

Signals

tR

Fast Mode 20 + 0.1CB

Standard Mode

300

ns

5

1000

Fall Time of Both

SDA and SCL

Signals

tF

Fast Mode 20 + 0.1CB

Standard Mode

300

ns

5

300

Set-up Time for

tSU:STO

Fast Mode

0.6

µs

STOP Condition

Standard Mode 4.0

Capacitive Load for

CB

each Bus Line

400 pF

5

I/O Capacitance

CI/O

10

pF

9 of 13

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