Real time clock module
Epson Toyocom
Simple Function SERIAL-INTERFACE REAL TIME CLOCK MODULE
Product Number (Please contact us) RTC-4543SA : Q41454351000200
RTC-4543SB : Q41454361000200
RTC - 4543 SA / SB
•Built in frequency adjusted 32.
768 kHz crystal unit.
•Interface type : 3-wire serial interface •Operating
voltage range : 2.
5 V to 5.
5 V •Wide Timekeeper
voltage range: 1.
4 V to 5.
5 V •32.
768 kHz frequency output function: C-MOS output With Control Pin •The various functions include full calendar, timer, and low
voltage detection.
Actual size RTC-4543SA
RTC-4543SB
Block diagram
32.
768 kHz
OSC
DIVIDER
CLOCK AND CALENDAR
FOUT FSEL FOE
DATA CLK WR CE
O UT PU T CO NT ROL LER
I/ O...