SERIAL-INTERFACE REAL TIME CLOCK MODULE
Real time clock module
SERIAL-INTERFACE REAL TIME CLOCK MODULE
RTC-4543SA/SB
• Builtin crystal unit allows adjustment-fr...
Description
Real time clock module
SERIAL-INTERFACE REAL TIME CLOCK MODULE
RTC-4543SA/SB
Builtin crystal unit allows adjustment-free efficient operation. Automatic leap year correction. Output selectable between 32.768 KHz/1 Hz. Operating voltage range: 2.5V to 5.5V. Supply voltage detection voltage: 1.7±0.3V. Low current consumption: 1.0 µA/2.0V (Max.)
Actual size
Specifications (characteristics) Absolute Max. rating
Item
Symbol Condition
Min.
Power source voltage VDD VDD-GND
Input voltage
VIN
-0.3
Output voltage
VOUT
—
Storage temperature TSTG
-55
Max. 7.0
VDD+0.3
Unit V
+125
˚C
Operating range
Item
Symbol
Operating voltage
VDD
Date holding voltage VCLK
Operating temperature TOPR
Condition —
Min.
Max. Unit
2.5 5.5 V
1.4
-40 +85 ˚C
Frequency characteristics
Item
Symbol
Condition
Range
Unit
Frequency tolerance ∆f/fo
Frequency temperature characteristics
Top
Ta=25˚C, VDD=5V -10 to +70˚C
5±23 +10/-120
ppm
Frequency volta...
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