RTC (SPI) / 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.

Parametric Search


Model Size
[mm]
Feature Frequency tolerance
[ x 10-6 ]
Alarm Memory Timer Power Switching Back up Current
[µA]
Voltage Range
[V]
Brief
Sheet
RoHS REACH Application manual Linux
®
Driver
Inventory
RX
6110SAA
(Custom)
10.1 x 7.4 x 3.3 Low
Power
Built-in
SRAM
A : 5±11.5
/ +25°C
0.17 1.1 to 5.5 pdf pdf pdf pdf
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RX
6110SAB
10.1 x 7.4 x 3.3 Low
Power
Built-in
SRAM
B : 5±23
/ +25°C
0.13 1.1 to 5.5 pdf pdf pdf pdf
cart
RX6110SAB
RX-
4803SA
10.1 x 7.4 x 3.3 Built-in
DTCXO
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 1.6 to 5.5 pdf pdf pdf pdf
cart
RX-4803SA
RX-
4803LC
3.6 x 2.4 x 1.2 Built-in
DTCXO
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 1.6 to 5.5 pdf pdf pdf pdf
cart
RX-4803LC
RX-
4035SA
10.1 x 7.4 x 3.3 High
Stability
Built-in
Timestamp
AA : 5±5.0
/ +25°C

AC : 0±5.0
/ +25°C

B : 5±23
/ +25°C
0.35 1.0 to 5.5 pdf pdf pdf pdf
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RX-4035SA
RX-
4035LC
3.6 x 2.4 x 1.2 High
Stability
Built-in
Timestamp
AA : 5±5.0
/ +25°C

AC : 0±5.0
/ +25°C

B : 5±23
/ +25°C
0.4 1.0 to 5.5 pdf pdf pdf pdf
- cart
RX-4035LC
RX-
4045SA
10.1 x 7.4 x 3.3 High
Stability
AA : 5±5.0
/ +25°C

AC : 0±5.0
/ +25°C
0.48 1.15 to 5.5 pdf pdf pdf pdf
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RX-4045SA
RX-
4045NB
6.3 x 5.2 x 1.4 High
Stability
AA : 5±5.0
/ +25°C

AC : 0±5.0
/ +25°C
0.48 1.15 to 5.5 pdf pdf pdf pdf
- cart
RX-4045NB
RX-
4581NB
6.3 x 5.2 x 1.4 Built-in
SRAM
B : 5±23
/ +25°C
0.4 1.6 to 5.5 pdf pdf pdf pdf
- cart
RX-4581NB
RX-
4571LC
3.6 x 2.4 x 1.2 Low
Backup
Voltage
B : 5±23
/ +25°C
0.32 1.0 to 5.5 pdf pdf pdf pdf
- cart
RX-4571LC
RX-
4571NB
6.3 x 5.2 x 1.4 Low
Backup
Voltage
B : 5±23
/ +25°C
0.32 1.0 to 5.5 pdf pdf pdf pdf
- cart
RX-4571NB
RX-
4571SA
10.1 x 7.4 x 3.3 Low
Backup
Voltage
B : 5±23
/ +25°C
0.32 1.0 to 5.5 pdf pdf pdf pdf
- cart
RX-4571SA
RX-
4574LC
3.6 x 2.4 x 1.2 Simple
function
B : 5±23
/ +25°C
0.35 1.3 to 5.5 pdf pdf pdf pdf
- cart
RX-4574LC
RTC-
4574SA
10.1 x 7.4 x 3.3 Simple
function
B : 5±23
/ +25°C
0.5 1.6 to 5.5 pdf pdf pdf pdf
- cart
RTC-4574SA
RTC-
4574JE
7.3 x 6.2 x 1.5 Simple
function
B : 5±23
/ +25°C
0.5 1.6 to 5.5 pdf pdf pdf pdf
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RTC-4574JE
RTC-
4574NB
6.3 x 5.2 x 1.4 Simple
function
B : 5±23
/ +25°C
0.5 1.6 to 5.5 pdf pdf pdf pdf
- cart
RTC-4574NB
RTC-
4543SA
10.1 x 7.4 x 3.3 Simple
function
B : 5±23
/ +25°C
1 1.4 to 5.5 pdf pdf pdf pdf
- cart
RTC-4543SA
RTC-
4543SB
11.6 x 8.0 x 2.0 Simple
function
B : 5±23
/ +25°C
1 1.4 to 5.5 pdf pdf pdf pdf
- cart
RTC-4543SB
RA-
4565SA
(AEC-Q200)
10.1 x 7.4 x 3.3 Extended
operating
temperatire
range
(to +125°C)
B : 5±23
/ +25°C
0.5 1.5 to 5.5 pdf pdf pdf pdf
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RA-
4574SA
(AEC-Q200)
10.1 x 7.4 x 3.3 Simple
function
B : 5±23
/ +25°C
0.5 1.6 to 5.5 pdf pdf pdf pdf
- Contact us
RA
4803SA
(AEC-Q200)
10.1 x 7.4 x 3.3 Built-in
DTCXO
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 1.6 to 5.5 pdf pdf pdf pdf
Contact us
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