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DS9034PCX 数据表(PDF) 2 Page - ARTSCHIP ELECTRONICS CO.,LMITED. |
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DS9034PCX 数据表(HTML) 2 Page - ARTSCHIP ELECTRONICS CO.,LMITED. |
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2 / 10 page ![]() DS1647/DS1647P Nonvolatile Timekeeping RAM www.artschip.com 2 PIN DESCRIPTION PIN PDIP PowerCap NAME FUNCTION 1 34 A18 2 3 A16 3 32 A14 4 30 A12 5 25 A7 6 24 A6 7 23 A5 8 22 A4 9 21 A3 10 20 A2 11 19 A1 12 18 A0 23 28 A10 25 29 A11 26 27 A9 27 26 A8 28 31 A13 30 33 A17 Address Input 31 2 A15 13 16 DQ0 14 15 DQ1 Data Input/Output 15 14 DQ2 17 13 DQ3 18 12 DQ4 19 11 DQ5 20 10 DQ6 Data Input/Output 21 9 DQ7 16 17 GND Ground 22 8 Active-Low Chip Enable 24 7 Active-Low Output Enable 29 6 Active-Low Write Enable 32 5 Vcc Power-Supply Input - 4 Active-Low Power-Fail Output, Open Drain. This pin requires a pullup resistor for proper operation. - 1 N.C No Connection - X1,X2,VBAT Crystal Connections and Battery Connection |
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