RTC (parallel) / 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
RTC-
72423
16.3 x 7.9 x 2.8 4-bit
Simple
function
A : ±20
/ +25°C

B : ±50
/ +25°C
0.9 2.0 to 5.5 pdf pdf pdf pdf - cart
RTC-72423
RTC-
72421
23.1 x 6.3 x 4.2 4-bit
Simple
function
A : ±10
/ +25°C

B : ±50
/ +25°C
0.9 2.0 to 5.5 pdf pdf pdf pdf - cart
RTC-72421
RTC-
7301SF
10.2 x 5.4 x 2.0 Built-in
Temperature
Sensor
B : 5±23
/ +25°C
0.6 1.6 to 5.5 pdf pdf pdf pdf - cart
RTC-7301SF
RTC-
7301DG
23.1 x 6.3 x 4.2 Simple
function
B : 5±23
/ +25°C
0.6 1.6 to 5.5 pdf pdf pdf pdf - cart
RTC-7301DG
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