电路图如下:
FF1A152134R1K1CLK1J56S9U22C&874LS112DFF1B141210U24A182131910~CLRS0S111CLKR2K2CLK2J9734574LS08DU20CU18B&69101&74LS32DU25A1J1Key = Space13111074LS08D274LS11DU19CU21C91013234567SU16B89101213U23A812SRABCDSL981074LS32D3QAQBQCQD15141312&74LS112DU28CVCC5V910&&174LS08DFF2B8141213111074LS08D74LS32D&R2K2CLK2J971274LS21DU14A1374LS194D74LS08DS74LS32DU9B345U30A1274LS112DFF3BU26A&612U27A312ò?????′??÷13174LS32D31412131110R2K2CLK2J97=1U1A1234~1CLR1D1CLK~1PR~1Q1Q6574LS11DU7A121374LS86N1274LS32D&74LS11DU6A1SU17C91074LS74D74LS112DFF4BV1 500Hz 5V1412131110&8245&6R2K2CLK2J9774LS08D74LS21D910U10C&8U4C974LS08DU12A812132U31A121SU15C910108&1U13A212139~CLR74LS112DFF5B141213811102J9&74LS08DU2A121174LS04DR2K2CLK774LS08D74LS27D34574LS32DS010S111CLK2&U3B1SRABCDSL63456QAQBQCQD15141312U29C910&74LS08DU2B4574LS32D&674LS08DS74LS08DU5C9182U11A13774LS112D74LS194D&FF6B14121311101074LS32DR2K2CLK2J97974LS08DU8C&81074LS08DS74LS112DX1X2X3X4X5X6X7X8 2.5 V 2.5 V 2.5 V 2.5 V 2.5 V 2.5 V 2.5 V 2.5 V
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