RTC4573 データシートの表示（PDF） - Seiko Epson Corp

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RTC4573

Serial RTC with Alarm and Timer

Seiko Epson Corp 

n Electrical Characteristics

1. Absolute Maximum Ratings

Description

Power supply Voltage

Input Voltage

Output Voltage

Temperature

Symbol

Conditions

Rated values

Unit

VDD

-

-0.3 to +7.0

V

VIN1

input pins

GND-0.3 to VDD+0.3

V

VOUT1

/ TIRQ,/ AIRQ

-0.3 to +8.0

V

VOUT2

FOUT,DATA

GND-0.3 to VDD+0.3

TSTG

-

-55 to +125

°C

2. Operating Condition

Item

Supply Voltage

Data Holding Voltage

Operating Temperature Range

Symbol

VDD

VCLK

TOPR

Conditions

-

-

-

MIN.

1.6

1.6

MAX.

Unit

5.5

V

5.5

V

+85

°C

3. Frequency Characteristics

Item

Frequency accuracy

Oscillator start up time

Temperature characteristics

Voltage characteristics

* Monthly error of about 1 minute

Symbol

f / fo

tSTA

Conditions

Ta=25 °C,VDD=3V

Ta=25°C,VDD=1.6V

-10 to 70 °C 25 °C(Typ)

Ta=25°C,VDD=1.6 to 5.5V

Specifications

5 ± 23 *

3 (MAX)

+10 / -120

± 2.0

Unit

ppm

sec

ppm

ppm / V

4. DC Characteristics

Description

Standby current 1

Standby current 2

Input Voltage

Input leakage current

PulIdown R 1

PulIdown R 2

Output voltage 1

Output voltage 2

Leakage current

Symbol

IDD1

IDD2

VIH

VIL

ILK

RDWN1

RDWN2

VOH1

VOH2

VOH3

VOL1

VOL2

VOL3

VOL4

VOL5

IOZ

Conditions

VDD=5V CE0,CE1=GND

VDD=3V CE0,CE1=GND

CE0,CE1

CLK,DATA pins

VI=VDD or GND

CLK pins

VDD=5V

VDD=3V

CE0,CE1 pins

VDD=5V

VDD=3V

IOH=-1mA

DATA,FOUT pins

VDD=3V

IOH=-100mA

DATA,FOUT pins

VDD=5V

IOL=1mA

VDD=3V

VDD=3V

DATA,FOUT pins

IOL=100 mA

DATA,FOUT pins

VDD=5V

IOL=1mA

VDD=3V / AIRQ,/ TIRQ pins

VO=GND or VDD

DATA,/ AIRQ,/ TIRQ pins

MIN.

-

-

0.8VDD

0

(VDD =1.6 to 5.5V,Ta=-40 to 85°C )

TYP.

MAX.

Unit

1.0

2.0

mA

0.5

1.0

mA

-

VDD

V

-

0.2VDD

V

-0.5

-

0.5

mA

75

150

300

kW

150

300

600

kW

4.5

5.0

V

2.0

3.0

V

2.9

3.0

V

GND+0.5

V

GND+0.8

V

GND+0.1

V

GND+0.25 V

GND+0.4

V

-0.5

0.5

mA

Page-3

Aug.1998

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