Real time clock module REAL TIME CLOCK MODULE (I2C-Bus) Product Number (Please contact us) RX-8803SA UB : X1B000151000100 RX-8803SA UA : X1B000151000200 RX-8803SA UC : X1B000151000300 RX-8803SA AA : X1B000151000400 RX-8803LC UA : X1B000142000100 RX-8803LC UB : X1B000142000200 RX-8803LC UC : X1B000142000300 RX-8803LC AA : X1B000142000400 Built-in 32.768 kHz-DTCXO, High Stability RX - 8803 SA/LC *Built in frequency adjusted 32.768 kHz crystal unit and DTCXO. *1/100s resolution Time register *Interface Type : I2C-Bus interface (400kHz) *Interface voltage range : 1.6 V to 5.5 V *Temp. compensated voltage range : 2.2 V to 5.5 V *Clock supply voltage range : 1.6 V to 5.5 V *Selectable clock output (32.768 kHz, 1024 Hz, 1 Hz) *The various functions include full calendar, alarm, timer, EVIN input. .Epson prepared Linux driver for development. (http://www5.epsondevice.com/en/information/support/linux_rtc/) Actual size RX-8803SA RX-8803LC The registered trademark Linux(R) is used pursuant to a sublicense from LMI(Linux Mark Institute) The I2C-Bus is a trademark of NXP Semiconductors. Block diagram Overview *High Stability *UA 3.4 x 10-6 / -40 C to +85 C ( Equivalent to 9 seconds of month deviation ) *UB 5.0 x 10-6 / -40 C to +85 C ( Equivalent to 13 seconds of month deviation ) *UC 5.0 x 10-6 / -30 C to +70 C *AA (+5 5.0) x 10-6 / +25 C 32.768 kHz 32kHz DTCXO *High Resolution: 1/100s Time register with capture buffer CLOCK and CALENDAR DIVIDER * 32.768 kHz frequency output function * FOUT pin output (C-MOS output), CL=30 pF * Output selectable: 32.768 kHz, 1024 Hz, 1 Hz FOE FOUT EVIN / INT SDA FOUT CONTROLLER TIMER REGISTER INTERRUPT CONTROLLER ALARM REGISTER CONTROL REGISTER and SYSTEM CONTROLLER INTERFACE CIRCUIT SCL * The various interrupt * Timer Function can be set between 1/ 4096 second and 4095 minutes. * Alarm Function can be set to day of week, day, hour, or minute. * EVIN input. * Time synchronize function with 1PPS signal input * Register compatibility: upper compatible with RX-8801. *It is possible to use it by the terminal connection as 32.768 kHz-DTCXO. Pin Function FOUT Output TEST input VDD FOE EVIN / INT GND input input Output - T2(VPP) - SDA I/O SCL 3. FOUT N.C. 13. SDA 12. T2(VPP) 1. N.C. 12. EVIN 2. FOE 3. VDD 4. N.C. 5. TEST 11. GND 10. /INT 5.0 6. VDD 7. FOE 7.40.2 4. FOUT 9. EVIN 5. SCL 8. N.C. 6. T1(CE) 11. /INT 10. GND 2.4 2.8 SOP14 pin 9. T2(Vpp) 8. SDA 7. N.C. VSOJ12pin 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. *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.When glue invasions between circuit board side and glass side, then glass cracks by thermal expansion of glue.In this case a crystal oscillation stops.Consider glue abolition or glue do not touch to LC-package Refer to application manual for details. Specifications (characteristics) Electrical Characteristics Item 14. 0.5 T1(CE) 2. 3.6 input 1. 1.2Max. SCL Function Use by the manufacture for testing. ( Do not connect externally.) Serial clock input pin. The pin outputs the reference clock signal. ( CMOS output ) Use by the manufacture for testing. ( Do not connect externally. RX-8803SA only.) Connected to a positive power supply The input pin for the FOUT output control. External event input. Interrupt output (N-ch. open drain). Connected to a ground Use by the manufacture for testing. ( Do not connect externally.) Data input and output pin. 10.1 0.2 input RX8803LC 3.20.1 I/O T1(CE) RX8803SA 1.27 Signal Name (Unit:mm) Terminal connection/External dimensions 32.768 kHz-DTCXO Frequency temperature characteristics (Example) Symbol Conditions Interface voltage Min. Typ. Max. Unit 1.6 3.0 5.5 V 2.2 3.0 5.5 V Operating voltage VDD Temp. compensated Voltage VTEM Clock supply voltage VCLK - 1.6 3.0 5.5 V Operating temperature TOPR - -40 +25 +85 C Frequency temperature characteristics 10 Temp. compensated voltage Stability f/f UA Ta= -40 C to +85 C UB UC Ta=-40 C to +85 C Ta= -30 C to +70 C 3.41 5.02 5 5.03 AA Current consumption (1) Current consumption (2) IDD1 IDD2 Ta=+25 C Backup Mode VDD = 5V FOE = GND, /INT = VDD VDD = 3V FOUT output : OFF - 0.75 3.4 - 0.75 2.1 1) Equivalent to 9 seconds of month deviation. 2)Equivalent to 13 seconds of month deviation. 3) Equivalent to 13 seconds of month deviation. ( excluding offset ) 10-6 A Frequency tolerance ( x10-6 ) 5 32.768 kHz DTCXO 0 -5 -10 -15 Tuning fork X'tal -20 -25 -30 -45 -35 -25 -15 -5 5 15 25 Temperature (C) 35 45 55 65 75 85 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 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. 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. WORKING FOR HIGH QUALITY In order provide high quality and 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. ISO/TS16949 is the international standard that added the sector-specific supplemental requirements for automotive industry based on ISO9001. 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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When using them in specific applications that require extremely high reliability, such as the applications stated below, you must obtain permission from Seiko Epson in advance. / Space equipment (artificial satellites, rockets, etc.) / Transportation vehicles and related (automobiles, aircraft, trains, vessels, etc.) / Medical instruments to sustain life / Submarine transmitters / Power stations and related / Fire work equipment and security equipment / traffic control equipment / and others requiring equivalent reliability. * All brands or product names mentioned herein are trademarks and/or registered trademarks of their respective. Seiko Epson Corporation