Évaluations - 3, GPA: 3.7
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Facilité d'utilisation
Therefore, try as much as possible to apply the voltage level close to VDD or GND. (4) Handling of unused pins Since the input impedance of the input pins is extremely high, operating the device with these pins in the open circuit state can lead to unstable voltage level and malfunctions due to noise. Therefore, pull- up or pull-down resistors should be provided for all unused input pins. 12-2. Notes on packaging (1) Soldering heat resistance. If the temperature within the package exceeds 260, the characteristics of the crystal oscillator will be degraded and it may be damaged. The reflow conditions within our reflow profile is recommended. Therefore, always check the mounting temperature and time before mounting this device. Also, check again if the mounting conditions are later changed. * See Fig. 2 profile for our evaluation of Soldering heat resistance for reference. (2) Mounting equipment While this module can be used with general-purpose mounting equipment, the internal crystal oscillator may be damaged in some circumstances, depending on the equipment and conditions. Therefore, be sure to check this. In addition, if the mounting conditions are later changed, the same check should be performed again. (3) Ultrasonic cleaning Depending on the usage conditions, there is a possibility that the crystal oscillator will be damaged by resonance during ultrasonic cleaning. Since the conditions under which ultrasonic cleaning is carried out (the type of cleaner, power level, time, state of the inside of the cleaning vessel, etc.) vary widely, this device is not warranted against damage during ultrasonic cleaning. (4) Mounting orientation This device can be damaged if it is mounted in the wrong orientation. Always confirm the orientation of the device before mounting. (5) Leakage between pins Leakage between pins may occur if the power is turned on while the device has condensation or dirt on it. Make sure the device is dry and clean before supplying power to it. Fig. 1: Example GND Pattern RTC - 4543 SA ( SOP-14pin ) RTC - 4543 SB ( SOP-18pin ) Fig. 2: Reference profile for our evaluation of Soldering heat resistance. +1 . +5 °C / s 100 s Pre-heating area .1 . .5 °C / s time [ s ] Temperature [ °C ] +170 °C +220 °C +260 °C Max. +1 . +5 °C / s 35 s Stable Melting area Page - 12 MQ - 252 - 03 Application Manual Distributor AMERICA EPSON ELECTRONICS AMERICA, INC. HEADQUARTER 150 River Oaks Parkway, San Jose, CA 95134, U.S.A. Phone: (1)800-228-3964 (Toll free) : (1)408-922-0200 (Main) Fax: (1)408-922-0238 Atlanta Office 3010 Royal Blvd. South, Ste. 170, Alpharetta, GA 30005, U.S.A. Phone: (1)877-332-0020 (Toll free) : (1)770-777-2078 (Main) Fax: (1)770-777-2637 Boston Office 301Edgewater Place, Ste. 120, Wakefield, MA 01880, U.S.A. Phone: (1)800-922-7667 (Toll free) : (1)781-246-3600 (Main) Fax: (1)781-246-5443 Chicago Office 101 Virginia St., Ste. 290, Crystal Lake, IL 60014, U.S.A. Phone: (1)800-853-3588 (Toll free) : (1)815-455-7630 (Main) Fax: (1)815-455-7633 El Segundo Office 1960 E. Grand Ave., 2nd Floor, El Segundo, CA 90245, U.S.A. Phone: (1)800-249-7730 (Toll free) : (1)310-955-5300 (Main) Fax: (1)310-955-5400 EUROPE EPSON EUROPE ELECTRONICS GmbH HEADQUARTER Riesstrasse 15, 80992 Munich, Germany Phone: (49)-(0)89-14005-0 Fax: (49)-(0)89-14005-110 Dusseldorf Branch Office Altstadtstrasse 176, 51379 Leverkusen, Germany Phone: (49)-(0)2171-5045-0 Fax: (49)-(0)2171-5045-10 UK & Ireland Branch Office Unit 2.4, Doncastle House, Doncastle Road, Bracknell, Berkshire RG12 8PE, England Phone: (44)-(0)1344-381700 Fax: (44)-(0)1344-381701 French Branch Office LP 915 Les Conquerants, 1 Avenue de l' Atlantique, Z.A. de Courtaboeuf 2 91976 Les Ulis Cedex, France Phone: (33)-(0)1-64862350 Fax: (33)-(0)1-64862355 ASIA EPSON (CHINA) CO., LTD. 23F, Beijing Silver Tower 2# North RD DongSangHuan ChaoYang District, Beijing, China Phone: (86) 10-6410-6655 Fax: (86) 10-6410-7319 4F, Bldg.,27, No.69, Gui Qing Road, Cao hejing, Shanghai, China Phone: (86) 21-6485-0835 Fax: (86) 21-6485-0775 EPSON HONG KONG LTD. 20/F., Harbour Centre, 25 Harbour Road, Wanchai, Hong kong Phone: (852) 2585-4600 Fax: (852) 2827-2152 EPSON ELECTRONIC TECHNOLOGY DEVELOPMENT (SHENZHEN )CO., LTD. Flat 16A, 16/F, New Times Plaza, No.1 Taizi Road, Shenzhen, China Phone: (86) 755-6811118 Fax: (86) 755-6677786 EPSON TAIWAN TECHNOLOGY & TRADING LTD. 14F, No.7, Song Ren Road, Taipei 110 Phone: (886) 2-8786-6688 Fax: (886)2-8786-6660 EPSON SINGAPORE PTE. LTD. No.1, Temasek Avenue #36-00, Millenia Tower, Singapore 039192 Phone: (65) 337-7911 Fax: (65) 334-2716 SEIKO EPSON CORPORATION KOREA Office 50F, KLI 63 Building,60 Yoido-dong, Youngdeungpo-Ku, Seoul, 150-763, Korea Phone: (82) 2-784-6027 Fax: (82) 2-767-3677 Gumi Branch Office 6F, Good Morning Securities Bldg., 56, Songjeong-dong...
Ce manuel est également adapté pour les modèles :Horodateurs - RTC-4543SB (130.89 kb)