IDT1337

REA LTIME CLOCK WITH SERIAL INTERFACE

RTC

13

IDT1337

REV J 111009

DC Electrical Characteristics

Unless stated otherwise, VCC = 1.8 V to 5.5 V, Ambient Temperature -40 to +85

° C, Note 1

DC Electrical Characteristics

Unless stated otherwise, VCC = 1.3 V to 1.8 V, Ambient Temperature -40 to +85

° C, Note 1

AC Electrical Characteristics

Unless stated otherwise, VCC = 1.8 V to 5.5 V, Ambient Temperature -40 to +85

° C, Note 1

Parameter

Symbol

Conditions

Min.

Typ.

Max.

Units

Input Leakage

Note 2

-1

+1

µA

I/O Leakage

Note 3

-1

+1

µA

Logic 0 Output

VOL = 0.4 V

Note 3

3

mA

Active Supply Current

Note 4

150

µA

Standby Current

Notes 5, 6

1.5

µA

Parameter

Symbol

Conditions

Min.

Typ.

Max.

Units

Timekeeper Current (Oscillator

Enabled)

425

600

nA

Data-Retention Current (Oscillator

Disabled)

100

nA

Parameter

Symbol

Conditions

Min.

Typ.

Max.

Units

SCL Clock Frequency

Fast Mode

100

400

kHz

Standard Mode

0

100

Bus Free Time Between a STOP and

START Condition

Fast Mode

1.3

µs

Standard Mode

4.7

Hold Time (Repeated) START

Condition, Note 10

Fast Mode

0.6

µs

Standard Mode

4.0

Low Period of SCL Clock

Fast Mode

1.3

µs

Standard Mode

4.7

High Period of SCL Clock

Fast Mode

0.6

µs

Standard Mode

4.0

Setup Time for a Repeated START

Condition

Fast Mode

0.6

µs

Standard Mode

4.7

Data Hold Time, Notes 11, 12

Fast Mode

0

0.9

µs

Standard Mode

0

Data Setup Time, Note 13

Fast Mode

100

ns

Standard Mode

250