Real time clock module
Epson Toyocom
Simple Function SERIAL-INTERFACE REAL TIME CLOCK MODULE
Product Number (Please c...
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 CONTROLLER
SHIFT REGISTER
VOLT AG E DETECT
CONTROL CIRCUIT
Overview
32.768 kHz frequency output function FOUT pin output (C-MOS output ), CL=30 pF FOE pin enables output on/off control. FSEL pin enables output selectable 32.768 kHz or 1 Hz.
Power supply
voltage moni...
