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Zakładka z wyszukiwarką danych komponentów |
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Zakładka z wyszukiwarką danych komponentów |
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74ACTQ16373 Arkusz danych(PDF) 2 Page - Fairchild Semiconductor |
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74ACTQ16373 Arkusz danych(HTML) 2 Page - Fairchild Semiconductor |
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2 / 8 page  www.fairchildsemi.com 2 Functional Description The ACTQ16373 contains sixteen D-type latches with 3- STATE standard outputs. The device is byte controlled with each byte functioning identically, but independent of the other. Control pins can be shorted together to obtain full 16-bit operation. The following description applies to each byte. When the Latch Enable (LEn) input is HIGH, data on the Dn enters the latches. In this condition the latches are transparent, i.e., a latch output will change states each time its D input changes. When LEn is LOW, the latches store information that was present on the D inputs a setup time preceding the HIGH-to-LOW transition of LEn. The 3- STATE standard outputs are controlled by the Output Enable (OEn) input. When OEn is LOW, the standard out- puts are in the 2-state mode. When OEn is HIGH, the stan- dard outputs are in the high impedance mode but this does not interfere with entering new data into the latches. Truth Tables H HIGH Voltage Level L LOW Voltage Level X Immaterial Z High Impedance Previous previous output prior to HIGH-to-LOW transition of LE Logic Diagrams Inputs Outputs LE1 OE1 I0–I7 O0–O7 X H X Z H L L L H L H H L L X (Previous) Inputs Outputs LE2 OE2 I8–I15 O8–O15 X H X Z H L L L H L H H L L X (Previous) |
Podobny numer części - 74ACTQ16373_05 |
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Podobny opis - 74ACTQ16373_05 |
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