Real time clock module Product Number (Please contact us) REAL TIME CLOCK MODULE (SPI-Bus) RX-4571LC : Q414571C2000100 LOW BACKUP VOLTAGE RX-4571NB : Q41457192000100 RX-4571SA : Q41457152000100 RX - 4571LC/NB /SA Built in frequency adjusted 32.768 kHz crystal unit. Interface Type : 3-wire serial interface Operating voltage range : 1.6Vto5.5V The wide voltage for time keeping. : 1.0Vto5.5V / Ta =+25 C Low backup current : 0.32 A (Typ. )/ 3V 32.768 kHz frequency output function : C-MOS output With OE pin. Real-time clock function Actual size Clock/calendar function, auto leap year correction function, RX-4571LC RX-4571NB RX-4571SA Alarm and Timer interrupt function, etc. Block diagram Overview 32.768 kHz frequency output function FOUT pin output (C-MOS output ), CL=30 pF CONTROL LINE 32.768 kHz Timer function Timer function which can be set up between 1/4096 second and 4095 minutes. OSC DIVIDER CLOCK and Alarm function CALENDAR Alarm function can be set to any combination of day, day of week, hour, or minute. FOUT FOUT TIMER FOE CONTROLLER REGISTER Pin Function Signal Input / Output Function Name INTERRUPTS ALARM / IRQ The chip enabled input pin 0. CONTROLLER REGISTER CE Input ( It has a built -in pull-down resistance ) Input The shift clock input pin for serial data transfer. CLK CONTROL BUS DIO DIO Bi-directional The data input / output pin for serial data transfer. REGISTER CLK INTERFACE 32.768kHzclock output pin with the output control and FOUT Output function. (C-MOS) SYSTEM CE CIRCUIT FOE pin control the condition of FOUT with CONTROLLER FOE Input FSEL1-bit, FSEL0-bit, etc. / IRQ Output Interrupt output ( N-ch open drain) VDD - Connected to a positive power supply. GND - Connected to a ground. Terminal connection /External dimensions (Unit:mm) RX 4571LC RX 4571 NB RX 4571 SA 1. FOE 22. N.C. 1. GND 14. FOUT 1. FOE 12. VDD 2. DIO 21. N.C. 2. N.C. 13. N.C. 3. (GND) 20. N.C. 2. N.C. 11. N.C. 4. CLK 19. N.C. 3. CE 12. N.C. 3. DIO 10. N.C. 5. CE 18. N.C. 4. CLK 11. N.C. 6. GND 17. N.C. 2.4 5.0 4. CLK 9. N.C. 4.8 7. N.C. 16. N.C. 5. DIO 10. / IRQ 8. N.C. 15. N.C. 5. CE 8. /IRQ 1.3 0.1 6. N.C. 9. N.C. 9. FOUT 14. N.C. 10. /IRQ 13. 6. GND 7. FOUT 7.4 0.2 2.8 5.0 0.2 7. FOE 8. VDD 11. VDD 12. SOP - 14 pin VSOJ 12pin SON 22 pin *Stop using the glue The metal case inside of the molding compound may be exposed on the top or bottom of this product. Any glue must never use it after soldering LC-package to a circuit board.This product has glass on the back side of a package.When glue invasions between circuit board side and glass side, then glass cracks by thermal This purely cosmetic and does not have any effect on quality, reliability or electrical specs. expansion of glue.In this case a crystal oscillation stops.Consider glue abolition or glue do not touch to LC-package Specifications (characteristics) Refer to application manual for details. Current consumption characteristics Recommended Operating Conditions Ta =-40 C to+85C Item Symbol Conditions Min. Typ. Max. Unit Symbol Conditions Min. Typ. Max. Unit Power voltage VDD 1.6 3.0 5.5 V VDD CE=GND Ta= +25 C 1.0 3.0 5.5 V - 0.40 1.00 Clock voltage VCLK =5V 1.1 3.0 5.5 V /IRQ=OFF Ta= -40 to +85 C IBK A Operating TOPR -40 +25 +85 C FOUT VDD temperature - 0.32 0.95 output OFF( Hi - z) =3V Frequency characteristics CE=GND VDD /IRQ=OFF - 8.0 14.0 Item Symbol Conditions Rating Unit =5V FOUT Frequency Ta= +25 C I32k A 6 f / f B: 5 23 * 10 32.768kHz output tolerance VDD= 3.0 V VDD - 5.0 8.5 ON Oscillation Ta= +25 C =3V s tSTA 1 Max. CL=30pF start-up time VDD= 1.6 V * Please ask for tighter tolerance. (Equivalent to 1 minute of monthly deviation) 0.5 1.2 Max. 3.6 0.5 6.3Max. 1.27 3.2 0.1 10.1 0.2 PROMOTION OF ENVIRONMENTAL MANAGEMENT SYSTEM CONFORMING TO INTERNATIONAL STANDARDS At Seiko Epson, all environmental initiatives operate under the Plan-Do-Check-Action (PDCA) cycle designed to achieve continuous ISO 14000 is an international standard for environmental improvements. The environmental management system (EMS) management that was established by the International operates under the ISO 14001 environmental management standard. Standards Organization in 1996 against the background of All of our major manufacturing and non-manufacturing sites, in growing concern regarding global warming, destruction of the ozone layer, and global deforestation. Japan and overseas, completed the acquisition of ISO 14001 certification. WORKING FOR HIGH QUALITY In order provide high quality and reliable products and services than meet customer needs, ISO/TS16949 is the international standard that added the Seiko Epson made early efforts towards obtaining ISO9000 series sector-specific supplemental requirements for automotive certification and has acquired ISO9001 for all business industry based on ISO9001. establishments in Japan and abroad. We have also acquired ISO/TS 16949 certification that is requested strongly by major automotive manufacturers as standard. Explanation of the mark that are using it for the catalog Pb free. Complies with EU RoHS directive. *About the products without the Pb-free mark. Contains Pb in products exempted by EU RoHS directive. (Contains Pb in sealing glass, high melting temperature type solder or other.) Designed for automotive applications such as Car Multimedia, Body Electronics, Remote Keyless Entry etc. Designed for automotive applications related to driving safety (Engine Control Unit, Air Bag, ESC etc ). Notice This material is subject to change without notice. Any part of this material may not be reproduced or duplicated in any form or any means without the written permission of Seiko Epson. The information about applied data, circuitry, software, usage, etc. written in this material is intended for reference only. Seiko Epson does not assume any liability for the occurrence of customer damage or infringing on any patent or copyright of a third party. This material does not authorize the licensing for any patent or intellectual copyrights. When exporting the products or technology described in this material, you should comply with the applicable export control laws and regulations and follow the procedures required by such laws and regulations. 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