DatasheetsPDF.com

RTC4574SA Dataheets PDF



Part Number RTC4574SA
Manufacturers Epson
Logo Epson
Description Serial Interface Real Time Clock Module
Datasheet RTC4574SA DatasheetRTC4574SA Datasheet (PDF)

Real time clock module SERIAL-INTERFACE REAL TIME CLOCK MODULE www.DataSheet4U.com RTC - 4574 SA / JE / NB • Built in frequency adjusted 32.768 kHz crystal unit. • Interface Type : Serial interface in 3 lines form. • Operating voltage range : 1.6 V to 5.5 V • Wide Timekeeper voltage range : 1.6 V to 5.5 V • Low backup current : 0.5 µA / 3 V ( Typ. ) • 32.768 kHz frequency output function : C-MOS output With Control Pin • The various functions include full calendar, alarm, timer. • Lead(Pb)-fr.

  RTC4574SA   RTC4574SA


Document
Real time clock module SERIAL-INTERFACE REAL TIME CLOCK MODULE www.DataSheet4U.com RTC - 4574 SA / JE / NB • Built in frequency adjusted 32.768 kHz crystal unit. • Interface Type : Serial interface in 3 lines form. • Operating voltage range : 1.6 V to 5.5 V • Wide Timekeeper voltage range : 1.6 V to 5.5 V • Low backup current : 0.5 µA / 3 V ( Typ. ) • 32.768 kHz frequency output function : C-MOS output With Control Pin • The various functions include full calendar, alarm, timer. • Lead(Pb)-free : Contains high melting temperature type solder (Pb85 %) exempted by RoHS directive. Actual size RTC-4574SA RTC-4574JE RTC-4574NB Block diagram 32.768 kHz CONTROL LINE CLOCK and CALENDAR Overview • 32.768 kHz frequency output function • FOUT pin output (C-MOS output ), CL=30 pF • Output frequency selectable from1/30 Hz to 32.768 kHz (32 Values) OSC DIVIDER FOUT FCON / TIRQ / AIRQ DATA CLK CE 1 CE 0 • Timer function OUTPUT CONTROLLER INTERRUPTS CONTROLLER BUS INTERFACE CIRCUIT SHIFT REGISTER ALARM REGISTER CONTROL REGISTER TIMER REGISTER • Timer function can be set upbetween 1/4096 second and 255 minutes. • It is recorded automatic to TF-bit at the time of event occurrence,and possible to output with /TIRQ pin output (open-drain output). • Selectable one time mode or repeat mode. • Alarm function • Alarm function can be set to any combination of day of week, hour, or minute. • It is recorded automatic to AF-bit at the time of event occurrence,and possible to output with /AIRQ pin output (open-drain output). ∗ Functions are compatible with RX - 4574 LC. Terminal connection / External dimensions RTC − 4574 SA 1.27 (Unit:mm) RTC − 4574 JE 0.65 RTC − 4574 NB 20. 19. 7.0 ± 0.3 10.1 ± 0.2 3. 4. 5. 6. 7. 8. 9. 10. CE0 / AIRQ / TIRQ CLK DATA CE1 FCON GND 6.0 ± 0.2 5.4 18. 17. 16. 15. 14. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. 3. 4. 5. 6. 7. N.C. N.C. 5.0 12. 11. 10. DATA CLK / TIRQ / AIRQ CE0 4. 5. 6. 7. 8. 9. 10. 11. CE1 DATA CLK / TIRQ / AIRQ CE0 FOUT VDD 5.0 ± 0.2 4.8 6.3 Max. 2. FOUT 13. CE1 2. FOUT N.C. 2. 3. FCON N.C. 0.5 1. GND 14. FCON 1. VDD N.C. 1. GND 22. 21. 20. 19. 18. 17. 16. 1.3 ± 0.1 N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. − − N.C. 3.2 ± 0.1 N.C. VDD 7.4 ± 0.2 9. 8. 1.5 Max. 13. 12. 11. 15. 14. 13. 12. SOP − 14 pin VSOJ − 20 pin Metal may be exposed on the top or bottom of this product. This will not affect any quality, reliability or electrical spec. SON − 22 pin Specifications (characteristics) „ Recommended Operating Conditions Item Power voltage Clock voltage Operating temperature Symbol VDD VCLK TOPR Condition Min. 1.6 1.6 −40 Typ. 3.0 3.0 +25 Max. 5.5 5.5 +85 Unit V V °C IBK Current Consumption ∗ Refer to application manual for details. „ DC characteristics Item Symbol Condition CE0, CE1 = GND FOUT ;output OFF ( Hi - z ) VDD =5V VDD =3V VDD =5V VDD =3V Min. Ta = -40 °C to +85 °C Typ. 1.0 Max. 2.0 Unit µA 0.5 1.0 „ Frequency characteristics Item Frequency tolerance Oscillation start-up time Symbol ∆f/f Condition Ta = +25 °C VDD = 3.0 V Ta = +25 °C VDD = 1.6 V Rating 5 ± 23 ∗ 3 Max. Unit × 10−6 s CE0 = GND CE1 = VDD I32k FOUT ; 32.768 kHzoutput ON CL = 30 pF 8.0 20.0 µA tSTA 5.0 12.0 ∗ Please ask for tighter tolerance.(Equivalent to 1 minute of monthly deviation) 112 http://www.epsontoyocom.co.jp .


RTC-4574NB RTC4574SA RTC4574JE


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site.
(Privacy Policy & Contact)