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74F574 Datasheet(PDF) 4 Page - NXP Semiconductors |
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74F574 Datasheet(HTML) 4 Page - NXP Semiconductors |
4 / 14 page Philips Semiconductors Product specification 74F573/74F574 Latch/flip-flop 1989 Oct 16 4 LOGIC DIAGRAM – 74F573 D0 D1 D2 D3 D4 D5 D6 D7 Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 E OE 23 4 5 6 789 12 13 14 15 16 17 18 19 1 11 E D Q E D Q EQ D E D Q E D Q E D Q E D Q E D Q VCC=Pin 20 GND=Pin 10 SF01079 FUNCTION TABLE – 74F573 INPUTS INTERNAL OUTPUTS OPERATING MODES OE E Dn REGISTER Q0 – Q7 OPERATING MODES L L H H L H L H L H Load and read register L L ↓ ↓ l h L H L H Latch and read register L L X NC NC Hold H H L H X Dn NC Dn Z Z Disable outputs H = High voltage level h = High voltage level one setup time prior to the High-to-Low E transition L = Low voltage level l = Low voltage level one setup time prior to the High-to-Low E transition NC= No change X = Don’t care Z = High impedance “off” state ↓ = High-to-Low E transition LOGIC DIAGRAM – 74F574 D0 D1 D2 D3 D4 D5 D6 D7 Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 CP OE 23 4 5 6 789 12 13 14 15 16 17 18 19 1 11 CP D Q CP D Q CP Q D CP D Q CP D Q CP D Q CP D Q CP D Q VCC=Pin 20 GND=Pin 10 SF01080 |
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