RTC4573 Datasheet - Epson Company

RTC4573 Serial RTC with Alarm and Timer

Power supply Voltage Input Voltage Output Voltage Temperature Symbol VDD VIN1 VOUT1 VOUT2 TSTG Conditions input pins / TIRQ,/ AIRQ FOUT,DATA Rated values -0.3 to +7.0 GND-0.3 to VDD+0.3 -0.3 to +8.0 GND-0.3 to VDD+0.3 -55 to +125 Unit V V V °C 2. Operating Condition Item Supply Voltage Data Holding.

Serial RTC with Alarm and Timer RTC - 4573 Built-in frequency adjusted 32.768KHz crystal oscillator Serial interface that can be controlled through three signal lines Week , Day , hour , and minute alarm interrupt functions Interval timer interrupt function that can be set with an interval ranging from 1/4096th of a second to 255minutes Dual dedicated interrupt outputs for software maskable alarms and for timers Functions that detect halting of crystal oscill.

RTC4573 Features

* ency is output from FOUT terminal. FOUT control ( Reg.B ) FD4 0 0 1 1 FD3 0 1 0 1 Source Clk. 32768Hz 1024Hz 32Hz 1Hz FD2 0 0 0 0 1 1 1 1

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