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TOP > Products > Parallel 4-bit > RTC-72421/72423
REAL TIME CLOCK MODULE  
Serial 4-Wire Serial 3-Wire I2C Bus Parallel 4-bit
RoHS Compliant
Product summary
Built-in crystal unit allows adjustment-free efficient operation.
12/24 h clock switchover function and automatic leap year setting.
Package size : (RTC-72421) 23.1 x 7.62 x 4.2(mm)
(RTC-72423) 16.3 x 12.2 x 2.8t (mm Max.)
Specifications
RTC-72421 RTC-72423
Frequency tolerance 10x10-6 , 50x10-6 20x10-6 , 50x10-6
Operating temperature -10 to +70 -40 to +85
Power voltage 4.5 V to 5.5 V
Clock voltage 2.0 V to 5.5 V
Data sheets
RTC-72421/72423
Application Manual
RTC-72421/72423
Comparison Table
Comparison Table
REAL TIME CLOCK MODULE FAQ
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