actual size real time clock module block diagram ? ? ? ? overview ? ? ?? the event detection and timestamp function dual event detection terminals. selectable de-bounce period 35ms or 2s. available event detection interrupt output. ?? power switching functions. ? when v dd is less than 2.4v, an internal source is switched to v bat. ?? note: when the supply from v bat , spi interface are disabled. ?? alarm, periodic interrupt , 32.768khz clock output. ? available monthly-alarm and weekly-alarm. ? interrupt period are selectable from 2hz to monthly. ? clkout outputs 32.768khz clock powered by v dd . pin function ? ? ? ? terminal connection ? ? ? ( unit : mm ) ? ? signal name input / output function v bat - power supply for backup. vout output switched power out. (maximum output current 20ma) ce input spi chip enable. clk input spi serial clock. so output spi data out. si input spi data in. ? gnd - ground ? evin1 input event detection input 1 evin2 input event detection input 2 / int output interrupt out. clkout output 32.768khz output. (cmos. can not inhibit.) n.c. - do not connect. v dd - main power supply. ?? rx ??? 4035 ? sa 1. n.c. 10.1 ?? ? 0.2 5.0 7.4 ??? 0.2 3.2 ??? 0.1 1.27 14. evin2 2. clk 13. si 3. clkout 12. so 4. vbat 11. gnd 5. n.c. 10. / int 6. vdd 9. ce 7. vout 8. evin1 sop ??? 14 pin rx ??? 4035 ? lc 1. vout 0.5 2.4 3.6 1.2 ? max. ? 2.8 12. evin1 2. vdd 11. ce 3. n.c. 10. / int 4. vbat 9. gnd 5. clkout 8. so 6. clk 7. si vsoj ??? 12pin 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. s p ecifications ( characteristics ) ? ? refer to a pp lication manual for details. ? ? recommended operating conditions item symbol conditions min. typ. max. unit operating voltage v access v dd 2.4 3.0 5.5 v time keeping voltage v clk v bat 1.0 3.0 5.5 v operating temperature t opr - -40 +25 +85 ? c storage temperature t stg - -55 - +125 ? c ? ? frequency characteristics item symbol conditions rating unit frequency tolerance ?? f ? / ? f t a ? = ? +25c v bat ? = ? 3.0 ? v b: 5 ??? 23 ? 1) aa: 5 ??? 5 ?? ? 2) ac: 0 ??? 5 ?? ? 2) ?? 10 ? 6 oscillation start-up time t sta t a ? = ? +25 ? c v dd ? = ? 3.0 ? v 1 ?? max. s frequency / voltage characteristics f ? / ? v t a ? = ? +25 ? c v dd ? = ? 2.4 ? v ? to ? 5.5 ? v ?? 1 ?? max. ?? 10 ? 6 ? 1) ?? equivalent to 1 minute of monthly deviation (excluding offset.) ? 2) ? ? equivalent to 13 seconds of monthly deviation (excluding offset.) ? ? current consumption characteristics t a ? = ? -40 ?? c ? to ? +85 ?? c item symbol conditions min. typ. max. unit current consumption i bat RX-4035sa v bat ? = ? 3.0v, v dd = 0.0v ? ce = 0v, clkout = open - 350 1200 na RX-4035lc v bat ? = ? 3.0v, v dd = 0.0v ? ce = 0v, clkout = open 400 i dd v dd = 3.0v ce = 0v clkout = open - 1.40 2.50 a ? ? power supply detection voltage t a ? = ? -40 ?? c ? to ? +85 ?? c item symbol conditions min. typ. max. unit v bat detect voltage v low - 1.10 1.25 1.40 v power switching voltage (v dd to v bat ) v d2b +25 ?? c 2.328 2.40 2.472 v RX-4035sa RX-4035lc real time clock module (spi-bus) high-stability frequency with built in timestamp and power switching rx ? - ? 4035 ? sa ? / ? lc ? built-in 32.768 khz crystal unit : frequency adjusted for high accuracy. ? ( ?? 5 ?? 10 ? 6 ? / ? t a ? = ? +25 ?? c) ? ? interface type : spi-bus (1mhz) ? operating voltage range : 2.4 ? v ? to ? 5.5 ? v ? timekeeping voltage range : 1.0 ? v ? to ? 5.5 ? v ? low backup current : 350 na (sa) 400 na (lc) ? / ? 3 ? v ? (typ.) ? event detection and time stamp : one-shot full timestamp and interrupt. ? dual event detection ports : each terminal has a de-bounce circuit. ? auto power switching functions : when v dd deteriorates than 2.4v, internal source is switched to v bat . . product number (please contact us) RX-4035sa: x1b000192xxxx00 RX-4035lc: x1b000202xxxx00 gnd vout main vdd vbat clock calender time stamp si voltage detector voltage detector so level shifter clkout / int evin1 de-bounce osc evin2 ce clk external cpu detects high level. rechargeable battery. or capacitor. *stop using the glue 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.w hen glue invasions between circuit board side and glass side, then gla ss cracks by thermal expansion of glue.in this case a crystal oscillation stops.consider glue abolition or glue do not touch to lc-package
promotion of environm ental 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 improvements. the environmental management system (ems) operates under the iso 14001 environmental management standard. all of our major manufacturing and non-manufacturing sites, in japan and overseas, completed the acquisition of iso 14001 certification. working for high quality in order provide high quality a nd reliable products and services than meet customer needs, seiko epson made early efforts towards obtaining iso9000 series certification and has acquired iso9001 for all business 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 multim edia, body electronics, remote keyless entry etc. ? designed for automotive applications related to drivi ng safety (engine control unit, air bag, esc etc ). seiko epson corporation notice ? this material is subjec t 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 circuitry, software, usage, etc. wr itten in this material is intended for reference only. seiko epson does not assume any liability for the occurrence of infringing on any pat ent or copyright of a third party. this material does not a uthorize the licensing for any patent or intellectual copyrights. ? when exporting the products or technology described in this material, you should comp ly with the applicable export control law s and regulations and follow the procedures r equired by such laws and regulations. ? you are requested not to use the products (and any technical information furnished, if any) for the development and/or manufac ture of weapon of mass destruction or for other milit ary purposes. you are also requested that you would not make the products availabl e to any third party who may use the products for such prohibited purposes. ? these products are intended for general use in electronic equipment. when using them in s pecific applications that require ext remely high reliability, such as the applications stated below, y ou must obtain permission from seiko epson in advance. / space equipment (artificial satellites, rockets, etc.) / trans portation vehicles and related ( automobiles, aircraft, trains, vessels, etc.) / medical instruments to sustain life / submari ne transmitters / power stations and related / fire work equipmen t and security equipment / traffic control equipment / and others requiring equivalent reliability. ? all brands or product names mentioned herein are trademar ks and/or registered trademarks of their respective. iso 14000 is an international standard for environmental management that was established by the international standards organization in 1996 against the background of growing concern regarding global warming, destruction of the ozone layer, and global deforestation. iso/ts16949 is the international standard that added the sector-specific supplemental requirements for automotive industry based on iso9001.
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