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RS5C313

ULTRA-COMPACT REAL-TIME CLOCK IC

RICOH Co.,Ltd. 

RS5C313

RECOMMENDED OPERATING CONDITIONS

Symbol

VDD

VCLK

fXT

CG

VPUP

Item

Operating supply voltage

Time Keeping supply voltage

Oscillation frequency

External oscillator capacitance

Applied voltage at OFF

Conditions

CL value of crystal=6 to 8pF

INTR

MIN.

2.7

1.6

5

(VSS=0V, Topt=–30 to +80˚C)

TYP. MAX. Unit

5.0

6.0

V

6.0

V

32.768

kHz

10

24

pF

10

V

DC CHARACTERISTICS

Unless otherwise specified:VSS=0V, VDD=5V±10%, Topt=–30 to +80˚C, oscillation frequency=32.768kHz (CL=6pF, R1=30kΩ), CG=10pF

Symbol

Item

Pin name

Conditions

MIN. TYP. MAX. Unit

VIH “H” input voltage

CE, SCLK, SIO

0.8VDD

VDD

V

VIL “L” input voltage

CE, SCLK, SIO

0

0.2VDD V

IOH “H” output current

SIO

VOH=VDD–0.5V

–1

mA

IOL 1

SIO

VOL1=0.5V

1

“L” output current

mA

IOL 2

INTR

VOL2=0.4V

2

RDN

Pull-down resistance CE

45

130

450

kΩ

IILK

Input leakage current SCLK

VI =VDD or VSS

–1

1

µA

IOZ 1

Output off-state

IOZ 2

leakage current

SIO

INTR

VO=VDD or VSS

–2

VO=10V

–5

2

µA

5

IDD 1

Power consumption 1 VDD

VDD=3V

I/O=OPEN

0.7

1.5

µA

IDD 2

Power consumption 2 VDD

VDD=5.5V

I/O=OPEN

2

µA

Internal oscillator

CD

capacitance

OSCOUT

10

pF

5

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