Real time clock module REAL TIME CLOCK MODULE (I2C-Bus) Product Number (Please contact us) RX8010SJ : X1B000242000100 Low current consumption RX8010SJ *Built in frequency adjusted 32.768 kHz crystal unit. *Interface Type : I2C-Bus interface (400 kHz) *Operating voltage range : 1.6Vto5.5V *Wide voltage for time keeping. : 1.1Vto5.5V *Low backup current : 160nA/3V(Typ.) *Frequency output function : C-MOS or Open-Drain output *Built-in user RAM : 128 bit (8 bit x 16, SRAM) *The various functions include full calendar, alarm, timer, etc. *This product is conform to industrial standard SOP8 package, and it can be mounted to the common land pattern. Epson prepared Linux driver for development. (http://www5.epsondevice.com/en/information/support/linux_rtc/) Actual size 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 * Interface Type BUILT-IN XTAL ( 32.768 kHz ) OSC * I2C-Bus high-speed bus specifications. (400 kHz) CLOCK and DIVIDER *Frequency output function CALENDR * It may select a CMOS or open drain output * Output frequency can be selected as 32.768kHz, 1024Hz, 1Hz. TIMER REGISTER / IRQ1 ALARM,TIMER,FOUT *Timer function INTERRUPTS Timer function can be set up between 1/4096 second and 65535 hours. Timing period are 1hour, 1min, 64Hz, 4096Hz. It is recorded automatic to TF-bit at the time of event occurrence, and possible to output with /IRQ1 or /IRQ2 pin. ALARM REGISTER CONTROLLER TIMER, FOUT / IRQ2 CONTROL REGISTER BUS INTERFACE SCL SDA *Alarm function and CIRCUIT Alarm function can be set to day of week, day, hour, and minute. It is recorded automatic to AF-bit at the time of event occurrence, and possible to output with /IRQ1 pin. SYSTEM CONTROLLER * User RAM USER RAM 128 bit 128 bit (8 bit x 16, SRAM) Pin Function Terminal connection/External dimensions (Unit:mm) RX8010SJ 1.N.C. Function 8.VDD 2.N.C. SCL Input SDA Input/Output This is a shift clock input pin for serial data transmission. / IRQ1 Output This pin outputs interrupt signals ("L" level) for alarm, timer, time update, and 32.768kHz. This is an N-ch open-drain output. / IRQ2 Output This pin outputs interrupt signals ("L" level) for timer and FOUT. This is a C-MOS output. VDD Supply This is a power-supply pin. GND Supply This pin is connected to a ground. This is the data input/output pin for serial data transfer. 7./IRQ1 7.0 0.2 Input / Output 1.27 Signal Name 3./IRQ2 4.GND 6.SCL 5.SDA 3.9 0.1 2.65 Max. 6.0 0.2 Unit: mm SOP-8 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. Refer to application manual for details. Specifications (characteristics) Recommended Operating Conditions Item Power voltage Clock voltage Operating temperature Current consumption characteristics Symbol Conditions Min. Typ. Max. Unit VDD VCLK - 1.6 1.1 3.0 3.0 5.5 5.5 V V TOPR - -40 +25 +85 C Frequency tolerance Oscillation Start-up time Symbol IBK Frequency characteristics Item Item Symbol f/f tSTA Conditions Ta=+25C VDD=3.0V Ta=+25C VDD=1.6V5.5V Ta=-40Cto+85C VDD= 1.6V 5.5V *Equivalent to 1 minute of monthly deviation Rating Unit B: 523* 106 1Max. s 3Max. s Ta=-40Cto+85C Conditions Input pins are "L" fCLK = 0 Hz, /IRQ1,2 = OFF TSEL2="1" Current Consumption Min. Typ. Max. =5V - - 350 =3V - 160 320 =5V - 0.60 1.10 =3V - 0.52 0.90 VDD nA VDD VDD I32k fCLK = 0 Hz, /IRQ1: 32.768kHz ON, /IRQ2: OFF Unit A VDD 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. You are requested not to use the products (and any technical information furnished, if any) for the development and/or manufacture of weapon of mass destruction or for other military purposes. You are also requested that you would not make the products available 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 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