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RTC Modules

EPSON RTC Modules


EPSON wide range of RTC modules with built-in XTAL save power, provide superior accuracy, and simplify system design. Thanks to a rich set of optional functions, such as alarms and time stamps, RTCs can cover multiple additional tasks beside the time keeping.


EPSON RTC Modules List


Part No.

Size
mm 

Characteristics

Supply 

   Voltage
       [V]

Frequency Tolerance / 

  Operating Temperature 

          Range

Backup

current

[μA]

Power

switching

Time 

 stamp

Memory

Model

RX8901CE

3.2 x 2.5   x 1.0

I2C-Bus
 

 Built in DTCXO

  high stability

 32 time stamps

1.1V to 5.5V

XS : ±3.0× 10-6  / -40°C to +85°C
     ±5.0× 10-6 / +85°C to +105°C
  XB : ±5.0× 10-6 / -40°C to +85°C
    ±8.0× 10-6 / +85°C to +105°C

0.24

Y

Y

Y

RX8901CE XS

RX8901CE XB

RX4901CE

3.2 x 2.5   x 1.0

SPI-Bus

 Built in DTCXO

  high stability

 32 time stamps

1.1V to 5.5V

XS : ±3.0× 10-6   / -40°C to +85°C
     ±5.0× 10-6 / +85°C to +105°C
  XB : ±5.0× 10-6 / -40 °Cto +85°C
     ±8.0× 10-6 / +85 to +105°C

0.24

Y

Y

Y

RX4901CE XS

RX4901CE XB

RA8000CE
  (AEC-Q100)

3.2 x 2.5   x 1.0

I2C-Bus
Built in DTCXO

  high stability

   Operating 

  temperature

(to +125°C)

1.3V to 5.5V

YB : ±5.0× 10-6   / -40°C to +85°C
  ±8.0× 10-6 / +85°C to +105°C
  ±50.0× 10-6 / +105°C to +125°C

0.3


Y


RA8000CE YB
  (AEC-Q100)

RA4000CE
  (AEC-Q100)

3.2 x 2.5   x 1.0

SPI-Bus,
 

Built in DTCXO

  high stability

   Operating 

  temperature

(to +125°C)

1.3V to 5.5V

YB : ±5.0× 10-6   / -40°C to +85°C
  ±8.0× 10-6 / +85°C to +105°C
  ±50.0× 10-6 / +105°C to +125°C

0.3


Y


RA4000CE YB
  (AEC-Q100)

RX8111CE

3.2 x 2.5   x 1.0

I2C-Bus
Low power 

   consumption

   8 timestamps

1.1V to 5.5V

A : ±11.5× 10-6   / +25°C
  B : ±23.0× 10-6 / +25°C

0.1

Y

Y

Y

RX8111CE A

RX8111CE B

RX4111CE

3.2 x 2.5   x 1.0

SPI-Bus
  Low power 

   consumption

   8 timestamps

1.1V to 5.5V

A : ±11.5× 10-6   / +25°C
  B : ±23.0× 10-6 / +25°C

0.1

Y

Y

Y

RX4111CE A

RX4111CE B

RX8804CE

3.2 x 2.5   x 1.0

I2C-Bus
Built in DTCXO

  high stability

1.5V to 5.5V

XA :±3.4× 10-6 /   -40°C to +85°C
      ±8.0× 10-6 / +85°C to +105°C

XB :±5.0× 10-6 /   -40°C to +85°C
     ±8.0× 10-6 / +85°C to +105°C

0.35


Y


RX8804CE XA

RX8804CE XB

RA8804CE
  (AEC-Q100)

3.2 x 2.5   x 1.0

I2C-Bus
  Built in DTCXO

  high stability

1.5V to 5.5V

XA : ±3.4× 10-6   / -40°C to +85°C
     ±8.0× 10-6 / +85°C to +105°C
  XB : ±5.0× 10-6 / -40°C to +85°C
     ±8.0× 10-6 / +85°C to +105°C

0.35


Y


RA8804CE XA

RA8804CE XB

RX8130CE

3.2 x 2.5   x 1.0

I2C-Bus
  Backup battery charging control

Delay with reset output

1.1V to 5.5V

B : 5±23× 10-6 /   +25°C

0.3

Y


Y

RX8130CE B

RX8900CE

3.2 x 2.5   x 1.0

I2C-Bus
Built in DTCXO

  high stability

1.6V to 5.5V

UA : ±3.4× 10-6 /   -40°C to +85°C
  UB : ±5.0× 10-6 / -40°C to +85°C
  UC : ±5.0× 10-6 / -30°C to +70°C

0.7

Y



RX8900CE UA

RX8900CE UB

RX8900CE UC

RA8900CE
  (AEC-Q200)

3.2 x 2.5   x 1.0

I2C-Bus
  Built in DTCXO

  high stability

1.6V to 5.5V

UA : ±3.4× 10-6 /   -40°C to +85°C
  UB : ±5.0× 10-6 / -40°C to +85°C
  UC : ±5.0× 10-6 / -30°C to +70°C

0.7

Y



RA8900CE   UA

RA8900CE UB

RA8900CE UC

RX6110SA B

10.1 x 7.4   x 3.3

SPI or I2C-Bus
Low power consumption

Built in SRAM

1.1V to 5.5V

B : 5±23× 10-6 /   +25°C

0.13

Y


Y

RX6110SA B

RA4803SA
  (AEC-Q200)

10.1 x 7.4   x 3.3

SPI-Bus
  Built in DTCXO

1.6V to 5.5V

UA : ±3.4× 10-6 /   -40°C to +85°C
  UB : ±5.0× 10-6 / -40°C to +85°C
  UC : ±5.0× 10-6 / -30°C to +70°C

AA : 5±5.0× 10-6   / +25°C

0.75




RA4803SA UA

RA4803SA UB

RA4803SA UC

RX8900SA

10.1 x 7.4   x 3.3

I2C-Bus
Built in DTCXO

  high stability

1.6V to 5.5V

UA : ±3.4× 10-6 /   -40°C to +85°C
  UB : ±5.0× 10-6 / -40°C to +85°C
  UC : ±5.0× 10-6 / -30°C to +70°C

0.7

Y



RX8900SA UA

RX8900SA UB

RX8900SA UC

RX6110SA A
  (Custom)

10.1 x 7.4   x 3.3

SPI or I2C-Bus
Low power consumption

Built in SRAM

1.1 to 5.5

A : 5±11.5× 10-6   / +25°C

0.17

Y


Y

RX6110SA A

RX-4035LC

3.6 x 2.4   x 1.2

SPI-Bus
high stability

Built in timestamp

1.0V to 5.5V

AA : 5±5.0× 10-6   / +25°C
  AC : 0±5.0× 10-6 / +25°C
  B : 5±23× 10-6 / +25°C

0.4

Y

Y


RX-4035LC AA

RX-4035LC  AC

RX-4035LC B

RX-4035SA

10.1 x 7.4   x 3.3

SPI-Bus
high stability

Built in timestamp

1.0V to 5.5V

AA : 5±5.0× 10-6   / +25°C
  AC : 0±5.0× 10-6 / +25°C
  B : 5±23× 10-6 / +25°C

0.35

Y

Y


RX-4035SA  AA

RX-4035SA  AC

RX-4035SA B

RX-4045SA

10.1 x 7.4   x 3.3

SPI-Bus
  high stability

1.15V to   5.5V

AA : 5±5.0× 10-6   / +25°C
  AC : 0±5.0× 10-6 / +25°C

0.48




RX-4045SA   AA

RX-4045SA   AC

RX-4571LC

3.6 x 2.4   x 1.2

SPI-Bus
Low backup voltage

1.0V to 5.5V

B : 5±23× 10-6 /   +25°C

0.32




RX-4571LC  B

RX-4571SA

10.1 x 7.4   x 3.3

SPI-Bus
  Low backup voltage

1.0V to 5.5V

B : 5±23× 10-6 /   +25°C

0.32




RX-4571SA  B

RX-4803LC

3.6 x 2.4   x 1.2

SPI-Bus
  Built in DTCXO

1.6V to 5.5V

UA : ±3.4 /   -40°C to +85°C
  UB : ±5.0 / -40°C to +85°C
  UC : ±5.0 / -30°C to +70°C
  AA : 5±5.0 / +25°C

0.75




RX-4803LC  UA

RX-4803LC  UB

RX-4803LC  UC

RX-4803LC AA

RX-4803SA

10.1 x 7.4   x 3.3

SPI-Bus
Built in DTCXO

1.6V to 5.5V

UA : ±3.4× 10-6 /   -40°C to +85°C
  UB : ±5.0× 10-6 / -40°C to +85°C
  UC : ±5.0× 10-6 / -30°C to +70°C
  AA : 5±5.0× 10-6 / +25°C

0.75




RX-4803SA UA

RX-4803SA  UB

RX-4803SA  UC

RX-4803SA AA

RA-4565SA
  (AEC-Q200)

10.1 x 7.4   x 3.3

SPI-Bus
Operating 

   temperature

  (to +125°C)

1.5V to 5.5V

B : 5±23× 10-6 /   +25°C

0.5




RA-4565SA  B

RX8010SJ

7.0 x 6.0   x 2.65

Low power consumption

Built in SRAM

1.1V to 5.5V

B : 5±23× 10-6 /   +25°C

0.16



Y

RX8010SJ B

RX-8803LC

3.6 x 2.4   x 1.2

I2C-Bus
  Built in DTCXO

high stability

1.6V to 5.5V

UA : ±3.4× 10-6 /   -40°C to +85°C
  UB : ±5.0× 10-6 / -40°C to +85°C
  UC : ±5.0× 10-6 / -30°C to +70°C
  AA : 5±5.0× 10-6 / +25°C

0.75




RX-8803LC UA

RX-8803LC UB

RX-8803LC  UC

RX-8803LC AA

RX-8803SA

10.1 x 7.4   x 3.3

I2C-Bus
  Built in DTCXO

high stability

1.6V to 5.5V

UA : ±3.4× 10-6 /   -40 to +85°C
  UB : ±5.0× 10-6/ -40°C to +85°C
  UC : ±5.0× 10-6 / -30°C to +70°C
  AA : 5±5.0× 10-6 / +25°C

0.75




RX-8803SA UA

RX-8803SA UB

RX-8803SA UC

RX-8803SA AA

RX-8025SA

10.1 x 7.4   x 3.3

I2C-Bus
 high stability

1.15V to   5.5V

AA : 5±5.0× 10-6   / +25°C
  AC : 0±5.0× 10-6 / +25°C

0.48




RX-8025SA  AA

RX-8025SA  AC

RX-8035LC

3.6 x 2.4   x 1.2

I2C-Bus
  high stability

Built in timestamp

1.0V to 5.5V

AA : 5±5.0× 10-6   / +25°C
  AC : 0±5.0× 10-6 / +25°C
  B : 5±23× 10-6 / +25°C

0.40

Y

Y


RX-8035LC   AA

RX-8035LC   AC

RX-8035LC B

RX-8035SA

10.1 x 7.4   x 3.3

I2C-Bus
  high stability

Built in timestamp

1.0V to 5.5V

AA : 5±5.0× 10-6   / +25°C
  AC : 0±5.0× 10-6 / +25°C
  B : 5±23× 10-6 / +25°C

0.35

Y

Y


RX-8035SA  AA

RX-8035SA  AC

RX-8035SA B

RX-8564LC

3.6 x 2.4   x 1.2

I2C-Bus
  Low power consumption

1.3V to 5.5V

B : 5±23× 10-6 /   +25°C

0.275




RX-8564LC  B

RX-8571LC

3.6 x 2.4   x 1.2

I2C-Bus
  Low power consumption

Built in SRAM

1.3V to 5.5V

B : 5±23× 10-6 /   +25°C

0.22



Y

RX-8571LC  B

RX-8571SA

10.1 x 7.4   x 3.3

Low power consumption

Built in SRAM

1.3V to 5.5V

B : 5±23× 10-6 /   +25°C

0.22



Y

RX-8571SA  B

RX-8731LC

3.6 x 2.4   x 1.2

I2C-Bus
  Unique

ID-ROM

Built in EEPROM

1.3V to 5.5V

B : 5±23× 10-6 /   +25°C

0.35



Y

RX-8731LC  B

RA8803SA

  (AEC-Q200)

10.1 x 7.4   x 3.3

I2C-Bus
  Built in DTCXO，

high stability

1.6V to 5.5V

UA : ±3.4× 10-6 /   -40°C to +85°C
  UB : ±5.0× 10-6 / -40°C to +85°C
  UC : ±5.0× 10-6 / -30°C to +70°C
  AA : 5±5.0× 10-6 / +25°C

0.75




RA8803SA UA

RA8803SA UB

RA8803SA UC

RA8803SA AA

RA-8565SA
  (AEC-Q200)

10.1 x 7.4   x 3.3

I2C-Bus
Operating 

   temperature

  (to +125°C)

1.7V to 5.5V

B : 5±23× 10-6 /   +25°C

0.55




RA-8565SA  B

RX-4045NB

6.3 x 5.2   x 1.4

SPI-Bus
  high stability

1.15V to   5.5V

AA : 5±5.0× 10-6   / +25°C
  AC : 0±5.0× 10-6 / +25°C

0.48




RX-4045NB  AA

RX-4045NB  AC

RX-4571NB

6.3 x 5.2   x 1.4

SPI-Bus
  Low backup voltage

1.0V to 5.5V

B : 5±23× 10-6 /   +25°C

0.32




RX-4571NB  B

RX-8025NB

6.3 x 5.2   x 1.4

I2C-Bus
  high stability

1.15V to   5.5V

AA : 5±5.0× 10-6   / +25°C
  AC : 0±5.0× 10-6 / +25°C

0.48




RX-8025NB  AA

RX-8025NB  AC

RTC-8564NB

6.3 x 5.2   x 1.4

Low power consumption

1.1V to 5.5V

B : 5±23× 10-6 /   +25°C

0.275




RTC-8564NB  B

RTC-8564JE

7.3 x 6.2   x 1.5

I2C-Bus
  Low power consumption

1.1V to 5.5V

B : 5±23× 10-6 /   +25°C

0.275




RTC-8564JE  B

RX-8571NB

6.3 x 5.2   x 1.4

Low power consumption

  Built in SRAM

Long running timer (65535 hours)

1.3V to 5.5V

B : 5±23× 10-6 /   +25°C

0.22



Y

RX-8571NB  B

RX-8025T

7.4 x 10.1 x 3.2

I2C-Bus,

Built in DTCXO

1.6V to 5.5V

UB : ±5.0× 10-6 / -40°C to +85°C

UC : ±5.0× 10-6 / -30°C to +70°C

1.20




RX-8025T UB

RX-8025T UC

RTC-4543SA

7.4 x 10.1 x 3.2

SPI-Bus,

Built in 32.768kHz

crystal

2.5V to 5.5V

B : 5.0±23× 10-6 / -40°C to +85°C

1.0




RTC-4543SA B

RTC-4543SA A








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