Real Time Clock

Epson's wide range of Real Time Clock Modules (RTC) 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.

Video contents: What is Epson's Real Time Clock module?

Video contents: RTC selection guide by Use cases

Features of Seiko Epson Real Time Clock Module


Recommended Products

型号 外部尺寸
[ mm ]
特点 电源电压
[V]
频率公差
[x10-6]
待机电流
[µA]
内置电源切换 Time stamp 记忆 RoHS
REACH
Brief Sheet
应用手册
Linux
®
Driver
Web库存
1 RX8111CE
3.2 x 2.5 x 1.0 I2C-Bus,
Low Power,
8 time stamps
1.1 to 5.5 A : ±11.5 / +25°C

B : ±23.0 / +25°C
0.1 RoHSpdf REACHpdf BriefSheet
pdf
AppManualpdf
RX8111CE
1 RX4111CE
3.2 x 2.5 x 1.0 SPI-Bus,
Low Power,
8 time stamps
1.1 to 5.5 A : ±11.5 / +25°C

B : ±23.0 / +25°C
0.1 RoHSpdf REACHpdf BriefSheet
pdf
AppManualpdf
RX4111CE
1 RX8804CE
3.2 x 2.5 x 1.0 I2C-Bus

Built-in
DTCXO,
High
Stability
1.5 to 5.5 XA :
±3.4 / -40 to +85°C
±8.0 / +85 to +105°C

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

0.35 RoHSpdf REACHpdf BriefSheet
pdf
AppManualpdf
RX8804CE
1 RA8804CE
(AEC-Q100)
3.2 x 2.5 x 1.0 I2C-Bus

Built-in
DTCXO,
High
Stability
1.5 to 5.5 XA :
±3.4 / -40 to +85°C
±8.0 / +85 to +105°C

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

0.35 RoHSpdf REACHpdf BriefSheet
pdf
AppManualpdf
Contact us
1 RX8130CE 3.2 x 2.5 x 1.0 I2C-Bus

Backup
battery
charge
control,
Delay with
reset output
1.1 to 5.5 B : 5±23
/ +25°C
0.3 RoHSpdf REACHpdf BriefSheet
pdf
AppManualpdf
RX8130CE
1 RX8900CE 3.2 x 2.5 x 1.0 I2C-Bus

Built-in
DTCXO,
High
Stability
1.6 to 5.5 UA : ±3.4
/ -40 to +85°C

UB : ±5.0
/ -40 to +85°C

UC : ±5.0
/ -30 to +70°C
0.7 RoHSpdf REACHpdf BriefSheet
pdf
AppManualpdf
RX8900CE
1 RA8900CE
(AEC-Q200)
3.2 x 2.5 x 1.0 I2C-Bus

Built-in
DTCXO,
High
Stability
1.6 to 5.5 UA : ±3.4
/ -40 to +85°C

UB : ±5.0
/ -40 to +85°C

UC : ±5.0
/ -30 to +70°C
0.7 RoHSpdf REACHpdf BriefSheet
pdf
AppManual pdf
Contact us
1 RX6110SA B 10.1 x 7.4 x 3.3 SPI or I2C-Bus

Low
Power
Built-in
SRAM
1.1 to 5.5 B : 5±23
/ +25°C
0.13 RoHSpdf REACHpdf BriefSheet
pdf
AppManualpdf
RX6110SA B
1 RA4803SA
(AEC-Q200)
10.1 x 7.4 x 3.3 SPI-Bus

Built-in
DTCXO
1.6 to 5.5 UA : ±3.4
/ -40 to +85°C

UB : ±5.0
/ -40 to +85°C

UC : ±5.0
/ -30 to +70°C

AA : 5±5.0
/ +25°C
0.75 RoHSpdf REACHpdf BriefSheet
pdf
AppManualpdf
Contact us
z RX8900SA 10.1 x 7.4 x 3.3 I2C-Bus

Built-in
DTCXO,
High
Stability
1.6 to 5.5 UA : ±3.4
/ -40 to +85°C

UB : ±5.0
/ -40 to +85°C

UC : ±5.0
/ -30 to +70°C
0.7 RoHSpdf REACHpdf BriefSheet
pdf
AppManualpdf
RX8900SA
z RX6110SA A
(Custom)
10.1 x 7.4 x 3.3 SPI or I2C-Bus

Low
Power
Built-in
SRAM
1.1 to 5.5 A : 5±11.5
/ +25°C
0.17 RoHSpdf REACHpdf BriefSheet
pdf
AppManualpdf
Contact us
z RX-4035LC 3.6 x 2.4 x 1.2 SPI-Bus

High
Stability
Built-in
Timestamp
1.0 to 5.5 AA : 5±5.0
/ +25°C

AC : 0±5.0
/ +25°C

B : 5±23
/ +25°C
0.4 RoHSpdf REACHpdf BriefSheet
pdf
AppManualpdf
RX-4035LC
z RX-4035SA 10.1 x 7.4 x 3.3 SPI-Bus

High
Stability
Built-in
Timestamp
1.0 to 5.5 AA : 5±5.0
/ +25°C

AC : 0±5.0
/ +25°C

B : 5±23
/ +25°C
0.35 RoHSpdf REACHpdf BriefSheet
pdf
AppManualpdf
RX-4035SA
z RX-4045NB 6.3 x 5.2 x 1.4 SPI-Bus

High
Stability
1.15 to 5.5 AA : 5±5.0
/ +25°C

AC : 0±5.0
/ +25°C
0.48 RoHSpdf REACHpdf BriefSheet
pdf
AppManualpdf
RX-4045NB
z RX-4045SA 10.1 x 7.4 x 3.3 SPI-Bus

High
Stability
1.15 to 5.5 AA : 5±5.0
/ +25°C

AC : 0±5.0
/ +25°C
0.48 RoHSpdf REACHpdf BriefSheet
pdf
AppManualpdf
RX-4045SA
z RX-4571LC 3.6 x 2.4 x 1.2 SPI-Bus

Low
Backup
Voltage
1.0 to 5.5 B : 5±23
/ +25°C
0.32 RoHSpdf REACHpdf BriefSheet
pdf
AppManualpdf
RX-4571LC
z RX-4571NB 6.3 x 5.2 x 1.4 SPI-Bus

Low
Backup
Voltage
1.0 to 5.5 B : 5±23
/ +25°C
0.32 RoHSpdf REACHpdf BriefSheet
pdf
AppManualpdf
RX-4571NB
z RX-4571SA 10.1 x 7.4 x 3.3 SPI-Bus

Low
Backup
Voltage
1.0 to 5.5 B : 5±23
/ +25°C
0.32 RoHSpdf REACHpdf BriefSheet
pdf
AppManualpdf
RX-4571SA
z RX-4803LC 3.6 x 2.4 x 1.2 SPI-Bus

Built-in
DTCXO
1.6 to 5.5 UA : ±3.4
/ -40 to +85°C

UB : ±5.0
/ -40 to +85°C

UC : ±5.0
/ -30 to +70°C

AA : 5±5.0
/ +25°C
0.75 RoHSpdf REACHpdf BriefSheet
pdf
AppManualpdf
RX-4803LC
z RX-4803SA 10.1 x 7.4 x 3.3 SPI-Bus

Built-in
DTCXO
1.6 to 5.5 UA : ±3.4
/ -40 to +85°C

UB : ±5.0
/ -40 to +85°C

UC : ±5.0
/ -30 to +70°C

AA : 5±5.0
/ +25°C
0.75 RoHSpdf REACHpdf BriefSheet
pdf
AppManualpdf
RX-4803SA
z RA-4565SA
(AEC-Q200)
10.1 x 7.4 x 3.3 SPI-Bus

Extended
operating
temperatire
range
(to +125°C)
1.5 to 5.5 B : 5±23
/ +25°C
0.5 RoHSpdf REACHpdf BriefSheet
pdf
AppManualpdf
Contact us
z RX8010SJ 7.0 x 6.0 x 2.65 Low
current
consumption
Built-in
SRAM
1.1 to 5.5 B : 5±23
/ +25°C
0.16 RoHSpdf REACHpdf BriefSheet
pdf
AppManualpdf
RX8010SJ
z RX-8803LC 3.6 x 2.4 x 1.2 I2C-Bus

Built-in
DTCXO
High
Stabilty
1.6 to 5.5 UA : ±3.4
/ -40 to +85°C

UB : ±5.0
/ -40 to +85°C

UC : ±5.0
/ -30 to +70°C

AA : 5±5.0
/ +25°C
0.75 RoHSpdf REACHpdf BriefSheet
pdf
AppManualpdf
RX-8803LC
z RX-8803SA 10.1 x 7.4 x 3.3 I2C-Bus

Built-in
DTCXO
High
Stabilty
1.6 to 5.5 UA : ±3.4
/ -40 to +85°C

UB : ±5.0
/ -40 to +85°C

UC : ±5.0
/ -30 to +70°C

AA : 5±5.0
/ +25°C
0.75 RoHSpdf REACHpdf BriefSheet
pdf
AppManualpdf
RX-8803SA
z RX-8025NB 6.3 x 5.2 x 1.4 I2C-Bus

High
Stability
1.15 to 5.5 AA : 5±5.0
/ +25°C

AC : 0±5.0
/ +25°C
0.48 RoHSpdf REACHpdf BriefSheet
pdf
AppManualpdf
RX-8025NB
z RX-8025SA 10.1 x 7.4 x 3.3 I2C-Bus

High
Stability
1.15 to 5.5 AA : 5±5.0
/ +25°C

AC : 0±5.0
/ +25°C
0.48 RoHSpdf REACHpdf BriefSheet
pdf
AppManualpdf
RX-8025SA
z RX-8035LC 3.6 x 2.4 x 1.2 I2C-Bus

High
Stability
Built-in
Timestamp
1.0 to 5.5 AA : 5±5.0
/ +25°C

AC : 0±5.0
/ +25°C

B : 5±23
/ +25°C
0.40 RoHSpdf REACHpdf BriefSheet
pdf
AppManual
(ETM35E-11)pdf
RX-8035LC
z RX-8035SA 10.1 x 7.4 x 3.3 I2C-Bus

High
Stability
Built-in
Timestamp
1.0 to 5.5 AA : 5±5.0
/ +25°C

AC : 0±5.0
/ +25°C

B : 5±23
/ +25°C
0.35 RoHSpdf REACHpdf BriefSheet
pdf
AppManual
(ETM35E-11)pdf
RX-8035SA
z RX-8564LC 3.6 x 2.4 x 1.2 I2C-Bus

Low
current
consumption
1.3 to 5.5 B : 5±23
/ +25°C
0.275 RoHSpdf REACHpdf BriefSheet
pdf
AppManualpdf
RX-8564LC
z RTC-8564NB 6.3 x 5.2 x 1.4 Low
current
consumption
1.1 to 5.5 B : 5±23
/ +25°C
0.275 RoHSpdf REACHpdf BriefSheet
pdf
AppManualpdf
RTC-8564NB
z RTC-8564JE 7.3 x 6.2 x 1.5 I2C-Bus

Low
current
consumption
1.1 to 5.5 B : 5±23
/ +25°C
0.275 RoHSpdf REACHpdf BriefSheet
pdf
AppManualpdf
RTC-8564JE
z RX-8571LC 3.6 x 2.4 x 1.2 I2C-Bus

Low
current
consumption
Built-in
SRAM
1.3 to 5.5 B : 5±23
/ +25°C
0.22 RoHSpdf REACHpdf BriefSheet
pdf
AppManualpdf
RX-8571LC
z RX-8571NB 6.3 x 5.2 x 1.4 Low
current
consumption
Built-in
SRAM
Long-running
timer
(65535hours)
1.3 to 5.5 B : 5±23
/ +25°C
0.22 RoHSpdf REACHpdf BriefSheet
pdf
AppManualpdf
RX-8571NB
z RX-8571SA 10.1 x 7.4 x 3.3 Low
current
consumption
Built-in
SRAM
1.3 to 5.5 B : 5±23
/ +25°C
0.22 RoHSpdf REACHpdf BriefSheet
pdf
AppManualpdf
RX-8571SA
z RX-8731LC 3.6 x 2.4 x 1.2 I2C-Bus

Unique
ID-ROM
Built-in
EEPROM
1.3 to 5.5 B : 5±23
/ +25°C
0.35 RoHSpdf REACHpdf BriefSheet
pdf
AppManualpdf
RX-8731LC
z RA8803SA
(AEC-Q200)
10.1 x 7.4 x 3.3 I2C-Bus

Built-in
DTCXO,
High
Stability
1.6 to 5.5 UA : ±3.4
/ -40 to +85°C

UB : ±5.0
/ -40 to +85°C

UC : ±5.0
/ -30 to +70°C

AA : 5±5.0
/ +25°C
0.75 RoHSpdf REACHpdf BriefSheet
pdf
AppManualpdf
Contact us
z RA-8565SA
(AEC-Q200)
10.1 x 7.4 x 3.3 I2C-Bus

Extended
operating
temperatire
range
(to +125°C)
1.7 to 5.5 B : 5±23
/ +25°C
0.55 RoHSpdf REACHpdf BriefSheet
pdf
AppManualpdf
Contact us

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