RV5C339A datasheet(5/46 Pages) RICOH

Part #	RV5C339A

Description	3-WIRE SERIAL INTERFACE REAL-TIME CLOCK IC WITH VOLTAGE MONITORING FUNCTION

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Manufacturer	RICOH [RICOH electronics devices division]

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RV5C339A

DC ELECTRICAL CHARACTERISTICS

Symbol

Item

Pin name

Conditions

MIN.

TYP.

MAX.

Unit

VIH1

“H” Input Voltage

SCLK,CE

0.8VDD

5.5

VIH2

“H” Input Voltage

SIO

VDD=2.0 to 5.5V

0.8VDD

VDD+0.3

V

VIL

“L” Input Voltage

SCLK,CE,SIO

–0.3

0.2VDD

IOH

“H” Output Current

SIO

VOH=VDD–0.5V

–0.5

mA

IOL1

32KOUT,

VOL=0.4V

2

”L” Output Current

INTRA, INTRB

mA

IOL2

SIO

VOL=0.4V

0.5

IIL

Input Leakage Current

SCLK

VI=5.5V or Vss

–1

1

µA

VDD=5.5V

RDNCE

Pull-down Resistance

CE

40

120

400

k

Ω

IOZ1

SIO

Vo=5.5V or Vss

–1

1

µA

Output Off-state

VDD=5.5V

IOZ2

Leakage Current

32KOUT,

VO=5.5V

–1

1

INTRA, INTRB

VDD=3V,CE=OPEN

IDD1

Standby Current

VDD

Output=OPEN

0.35

0.8

µA

32KOUT=Off mode*1

VDETH

Supply Voltage Monitoring

VDD

Topt=–30 to +70˚C

1.90

2.10

2.30

V

Voltage (“H”)

VDETL

Supply Voltage Monitoring

VDD

Topt=–30 to +70˚C

1.45

1.60

1.80

V

Voltage (“L”)

CG

Internal Oscillation Capacitance 1

OSCIN

12

pF

CD

Internal Oscillation Capacitance 2

OSCOUT

12

Unless otherwise specified : Vss=0V,VDD=3V,Topt=–40 to +85˚C

*1) For standby current for outputting 32.768-kHz clock pulses from the 32KOUT pin, see “USAGES, 7. Typical Characteristics”.

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