RTC-4543SB

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...