RTC-72423

Real Real time clock module Epson Toyocom Product Number (Please contact us) RTC-72421 : Q42724211xxxx00 RTC-72423 : Q42724231xxxx00 4-bit REAL TIME CLOCK MODULE RTC - 72421 RTC - 72423 • Built-in crystal unit allows adjustment-free efficient operation. • 24 h /12 h changeable and leap year automatically adjustable (Gregorian calendar). Actual size RTC-72421 RTC-72423 Block diagram R T C-7 2421 /724 23 OS C D3 D2 D1 D0 R ESET S TOP bi t bit 30 s ec AD J bit S1 Gat e S 10 C ount er H OLD bit BU SY bit Gat e 24/12 bi t WR RD M I1 M I1 0 H1 H 10 W A3 A2 A1 A0 C S0 A LE C S1 Latc h De coder S1 t o CF D1 D 10 M O 1 MO 10 Y1 Y10 O u tp u t S e le c to r CD CE CF 6 4 Hz 1 Sec ond carr y 1 M inut e c arr y 1 H our c arr y S TD . P Terminal connection/External dimensions R TC-72 421 (DIP 18 -pin) No . 2 3.1 Ma x. #18 #10 (Unit:mm) R TC -72423 (SOP 24-pin) 6.3 #1 #9 #1 # 12 7 .62 0. 2 4. 2 Min. Max. 3.3 Min. 0. 25 0 ° - 15 ° 0 .35 7 .9 EPSON 1234A R TC 62423 72423 EPSON 1 234A 12. 2 Max. R TC7 2421 A 1 2 3 4 5 6 7 8 9 Pin te rmina l STD.P /CS 0 AL E A0 A1 A2 A3 /RD GND No . 18 17 16 15 14 13 12 11 10 Pin te rmina l VDD (VD D) (VD D) CS1 C0 D1 D2 D3 /W R 16.3 Max. # 24 #1 3 No . 1 2 3 4 5 6 7 8 9 10 11 12 0 .2 0.2 Pin te rmina l STD.P / CS 0 N .C. AL E A0 N .C. A1 N .C. A2 A3 /RD GND No . 24 23 22 21 20 19 18 17 16 15 14 13 Pin te rmina l VD D (VD D) (VD D) N.C. CS1 D0 N.C. N.C. D1 D2 D3 /WR 1.52 0 .46 2.54 2 .8 Max. 0 .1 Min. 1. 27 1. 0 0 ° - 10 ° M etal may be expo sed o n the top or bottom of th is pro duct. T his w ill not affect any qu ality, re liability o r electrical spec. Specifications (characteristics) Absolute Max. rating Item Symbol Supply voltage VDD Input voltage Storage temperature * VI/O TSTG Condition Ta=+25 °C Ta=+25 °C RTC-72421 RTC-72423 Min. -0.3 GND-0.3 -55 -55 Ma x. +7.0 VDD+0.3 +85 +125 Unit V °C *Refer to application manual for details. DC characteristics Item Current consumption HIGH input voltage (1) LOW input voltage (1) LOW output voltage (1) HIGH output voltage Symbol IDD1 IDD2 VIH1 VIL1 VOL1 VOH VOL2 IOFFLK C1 VIH2 VIL2 ILK1 ILK2 Condition CS1= 0 V VDD=5 V Exclude input/ output current VDD=2 V IOL=2.5 mA IOH=-400 µA IOL=2.5 mA V1=VDD/0 V Input frequency 1 MH z VDD=2.0 V to 5.5 V V1=VDD/0 V 10 20 4/5 VDD 1/5 VDD 1/-1 10/-10 Min. 2.2 2.4 Typ. 1 0.9 Ma x. 10 5 0.8 0.4 0.4 10/-10 Unit Applicable terminal µA V All inputs other than CS1 D0 to D3 STD.P Input other than D0 to D3 D0 to D3, STD.P C S1 Input other than D0 to D3 D0 to D3 *Stored as bare product after unpacking Operating range Item Power voltage Clock voltage Operating temperature Symbol VDD VCLK TOPR Condition RTC-72421 RTC-72423 Min. 4.5 2.0 -10 -40 Ma x. 5.5 5.5 +70 +85 Unit V V µA pF V µA LOW output voltage (2) OFF leak current Input capacity °C S tored as bare produc after unpacking HIGH input voltage (2) LOW input voltage (2) Input leak current (1) Frequency characteristics Item Frequency precision Frequency temperature characteristics Frequency voltage characteristics Symbol ∆f /f TOP f/V fa Condition 72421A 72421B Ta=+25 °C VDD=5.0 V 72423A 72423 -10 °C to +70 °C (+25 °C) -40 °C to +85 °C(+25 °C) Range ± 10 ± 50 ± 20 ± 50 +10 / -120 +10 / -220 Unit Input leak current (2) ×10-6 Ta=+25 °C,VDD=2.0 V to 5.5 V ± 5.0 Max. ×10-6/V Ta=+25 °C,VDD=5.0 V,First year ± 5.0 Max. ×10-6/year Aging http://www.epsontoyocom.co.jp “QMEMS” EPSON TOYOCOM In order to meet customer needs in a rapidly advancing digital, broadband and ubiquitous society, we are committed to offering products that are one step ahead of the market and a rank above the rest in quality. To achieve our goals, we follow a “3D (three device) strategy” designed to drive both horizontal and vertical growth. We will to grow our three device categories of “Timing Devices”, ”Sensing Devices” and “Optical Devices”, and expand vertical growth through a combination of products from these categories. A Quartz MEMS is any high added value quartz device that exploits the characteristics of quartz crystal material but that is produced using MEMS (micro-electro-mechanical system) processing technology. Market needs are advancing faster than previously imagined toward smaller, more stable crystal products, but we will stay ahead of the curve by rolling out products that exceed market speed and quality requirements. We want to further accelerate the 3D strategy by QMEMS. Quartz devices have become crucial in the network environment where products are increasingly intended for broadband, ubiquitous applications and where various types of terminals can transfer information almost immediately via LAN and WAN on a global scale. Epson Toyocom Corporation addresses every single aspect within a network environment. The new corporation offers “Digital Convergence” solutions to problems arising with products for consumer use, such as, core network systems and automotive systems. PROMOTION OF ENVIRONMENTAL MANAGEMENT SYSTEM CONFORMING TO INTERNATIONAL STANDARDS At Epson Toyocom, all environmental initiatives operate under ISO 14000 is an international standard for environmental management the Plan-Do-Check-Action(PDCA) cycle designed to achieve that was established by the International Standards Organization in 1996 continuous improvements. The environmental management against the background of growing concern regarding global warming, system (EMS) operates under the ISO 14001 environmental destruction of the ozone layer and global deforestation management standard. All of our major manufacturing and non-manufacturing sites,in Japan and overseas, completed the acquisition of ISO 14001 certification. In the future, new group companies will be expected to acquire the certification around the third year of operations. WORKING FOR HIGH QUALITY In order provide high quality and reliable products and services than meet customer needs, Epson Toyocom 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. QS-9000 is an enhanced standard for quality assurance systems formulated by leading U.S. automobile manufacturers based on the international ISO 9000 series. ISO/TS 16949 is a global standard based on QS-9000, a severe standard corresponding to the requirements from the automobile industry. ►Explanation of the mark that are using it for the catalog ►Pb free. ►Complies with EU RoHS directive. ►Pb free terminal designed. Contains Pb in products exempted by RoHS directive. (Contains Pb in sealing glass, high melting temperature type solder or other.) ►Complies with EU RoHS directive. ►The products have been designed for high reliability applications such as Automotive. 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 Epson Toyocom. ●The information, applied circuitry, programming, usage, etc., written in this material is intended for reference only. Epson Toyocom does not assume any liability for the occurrence of infringing on any patent or copyright of a third party. This material does not authorize the licensing for any patent or intellectual copyrights. ●Any product described in this material may contain technology or the subject relating to strategic products under the control of the Foreign Exchange and Foreign Trade Law of Japan and may require an export license from the Ministry of International Trade and Industry or other approval from another government agency. ●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 Epson Toyocom 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. ● In this new crystal master for Epson Toyocom, product codes and markings will remain as previously identified prior to the merger. Due to the on-going strategy of gradual unification of part numbers, please review product codes and markings, as they will change during the course of the coming months. We apologize for the inconvenience, but we will eventually have a unified part numbering system for Epson Toyocom that will be user friendly.