| 전자부품 데이터시트 검색엔진 |
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PC87382 데이터시트(PDF) 64 Page - National Semiconductor (TI) |
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PC87382 데이터시트(HTML) 64 Page - National Semiconductor (TI) |
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64 / 72 page ![]() 8.0 Device Characteristics (Continued) www.national.com 64 Revision1.2 8.4.2 Clock Input Timing . 8.4.3 Clock Output Timing . Symbol Parameter 48 MHz 14.31818 MHz Min Max Min Max Unit tCH Clock High Pulse Width1 1. Not tested. Guaranteed by characterization. 6 29.5 ns tCL Clock Low Pulse Width1 6 29.5 ns tCP Clock Period 2 2. Not tested. Guaranteed by design. 20 21.5 69.14 70.54 ns FCIN Clock Frequency 48 - 0.1% 48 + 0.1% 14.31818 - 0.02% 14.31818 + 0.02% MHz tCR Clock Rise Time2 (0.8V-2.0V) 55 ns tCF Clock Fall Time2 (2.0V-0.8V) 55 ns Symbol Parameter From Clock Generator From CLKIN Min Max Min Max Unit tCOH Clock High Pulse Width1 1. Not tested. Guaranteed by characterization. 6tCH -1 ns tCOL Clock Low Pulse Width1 6tCL -1 ns tCOP Clock Period2 2. Not tested. Guaranteed by design. 20 21.5 tCP - 0.5 tCP + 0.5 ns FCOUT Clock Frequency 48 - 0.1% 48 + 0.1% FCIN FCIN MHz tCOR Clock Rise Time1 (0.4V-2.4V) 55 ns tCOF Clock Fall Time1 (2.4V-0.4V) 55 ns tCL tCP tCH VIH VIH VIL VIL VIL VIH tCF tCR CLKIN tCOL tCOP tCOH VOH VOH VOL VIL VOL tCOF tCOR DCLKOUT VOH VOH |
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