Real time clock module Product Number (Please contact us) RTC-4543SA : Q41454352000200 REAL TIME CLOCK MODULE (SPI-Bus) Simple Function RTC - 4543 SA Built in frequency adjusted 32.768 kHz crystal unit. Interface type : 3-wire serial interface Operating voltage range : 2.5V to5.5V Wide Timekeeper voltage range : 1.4V to5.5V 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 Block diagram Overview 32.768 kHz 32.768 kHz frequency output function FOUT pin output (C-MOS output ), CL=30 pF FOE pin enables output on/off control. CLOCK AND CALENDAR OSC DIVIDER FSEL pin enables output selectable 32.768 kHz or 1 Hz. Power supply voltage monitoring function Detection that power supply voltage descended to 1.7 V or less. Automatic record to FDT-bit at the time of power supply FOUT decline detection. OUTPUT FSEL CONTROLLER SHIFT REGISTER FOE VOLTAGE DATA I / O DETECT CLK CONTROL CONTROLLER WR CE CIRCUIT Pin Function Terminal connection /External dimensions (Unit:mm) RTC 4543SA Signal Name Input / Output Function The chip enabled input pin. Input CE 1. GND 14. FOUT At the HIGH level, access becomes possible. CLK Input The shift clock input pin for serial data transfer. 2. N.C. 13. N.C. Input WR DATA pin input / output switching pin. 3. CE 12. N.C. DATA Bi-directional Th e data input / output pin for serial data transfer. 32.768kHzor 1Hz clock output pin 4. FSEL 11. DATA Output FOUT (C-MOS output). 5.0 High impedance at output off. 5. WR 10. CLK FOE Input The input pin for the FOUT output control. 6. FOE 9. VDD Select the frequency that is output from the Input FSEL FOUT pin. 7.4 0.2 7. N.C. 8. N.C. VDD - Connected to a positive power supply. GND - Connected to a ground. SOP 14 pin The metal case inside of the molding compound may be exposed on the top or bottom of this product. This purely cosmetic and does not have any effect on quality, reliability or electrical specs. Specifications (characteristics) * Refer to application Manual for details. Recommended Operating Conditions Current consumption characteristics Ta =-40C to+85 C Item Symbol Conditions Min. Typ. Max. Unit Item Symbol Conditions Min. Typ. Max. Unit Power voltage VDD - 2.5 5.0 5.5 V VDD - 1.5 3.0 Clock voltage VCLK - 1.4 5.0 5.5 V =5V Operating CE=GND TOPR - -40 +25 +85 C temperature FOE=GND Current VDD IBK - 1.0 2.0 A Consumption =3V FOUT output OFF Frequency characteristics (Hi-z) VDD - 0.5 1.0 Item Symbol Conditions Rating Unit =2V Ta=+25C Frequency 6 f/f 10 B: 5 23 tolerance VDD=5.0V Supply Voltage Detection Characteristic Ta =-40C to+85 C Ta=+25C Item Symbol Conditions Min. Typ. Max. Unit Oscillation 3 Max. s tSTA start-up time VDD=2.5V Power supply VDT VDD pin 1.4 1.7 2.0 V detection voltage Please ask for tighter tolerance.(Equivalent to 1 minute of monthly deviation ) 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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