データシートサーチシステム |
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CD74HC243E データシート(PDF) 2 Page - Texas Instruments |
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CD74HC243E データシート(HTML) 2 Page - Texas Instruments |
2 / 7 page 2 Functional Diagrams CD74HCT242 CD74HC243, CD74HC243 DIRECTION SELECT LOGIC A0 A1 A2 A3 OEB OEA 3 4 5 6 1 13 11 10 9 8 B0 B1 B2 B3 DIRECTION SELECT LOGIC A0 A1 A2 A3 OEB OEA 3 4 5 6 1 13 11 10 9 8 B0 B1 B2 B3 TRUTH TABLE CONTROL INPUTS HCT242 SERIES HC, HCT243 SERIES DATA PORT STATUS DATA PORT STATUS OEB OEA An Bn An Bn HH OIOI L H ZZZZ H L ZZZZ LL I OIO NOTE: H = High Voltage Level L = Low Voltage Level I = Input O = Output (Same Level as Input) O = Output (Inversion of Input Level) Z = High Impedance To prevent excess currents in the High Z modes all I/O terminals should be terminated with 10k Ω to 1MΩ resistors. CD74HCT242, CD74HC243, CD74HCT243 |
同様の部品番号 - CD74HC243E |
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同様の説明 - CD74HC243E |
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