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HCF4517B 数据表(PDF) 2 Page - STMicroelectronics |
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HCF4517B 数据表(HTML) 2 Page - STMicroelectronics |
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2 / 8 page ![]() HCF4517B 2/8 INPUT EQUIVALENT CIRCUIT PIN DESCRIPTION FUNCTIONAL DIAGRAM (One Half) TRUTH TABLES X : Don’t Care PIN No SYMBOL NAME AND FUNCTION 1, 2, 5, 6 QnA IN/OUT Stage 10, 11,14, 15 QnB IN/OUT Stage 3, 13 WEA, WEB Write Enable 7, 9 DA, DB Data Input 4, 12 CLA, CLB Clock 8 VSS Negative Supply Voltage 16 VDD Positive Supply Voltage CLOCK WRITE ENABLE DATA STAGE 16 TAP STAGE 32 TAP STAGE 48 TAP STAGE 64 TAP L L X Q16 Q32 Q48 Q64 L H XZZZZ H L X Q16 Q32 Q48 Q64 H H XZZZZ L DI In Q16 Q32 Q48 Q64 H DI In D17 In D33 In D49 In Z L X Q16 Q32 Q48 Q64 H XZZZZ |
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