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74ALS574AN Datasheet(PDF) 4 Page - NXP Semiconductors |
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74ALS574AN Datasheet(HTML) 4 Page - NXP Semiconductors |
4 / 13 page Philips Semiconductors Product specification 74ALS573B/74ALS574A Latch/flip-flop 1991 Feb 08 4 LOGIC DIAGRAM – 74ALS573B VCC = Pin 20 GND = Pin 10 D0 D E Q Q0 2 19 D1 D E Q Q1 3 18 D2 D E Q Q2 4 17 D3 D E Q Q3 5 16 D4 D E Q Q4 6 15 D5 D E Q Q5 7 14 D6 D E Q Q6 8 13 D7 D E Q Q7 9 12 11 E SC00109 1 OE FUNCTION TABLE – 74ALS573B INPUTS OUTPUTS INTERNAL OPERATING MODE OE E Dn REGISTER Q0 – Q7 OPERATING MODE L H L L L Enable and read register L H H H H Enable and read register L ↓ l L L Latch and read register L ↓ h H H Latch and read register L L X NC NC Hold H L X NC Z Disable outputs H H Dn Dn Z Disable outputs H = High-voltage level h = High state must be present one setup time before the High-to-Low enable transition L = Low-voltage level l = Low state must be present one setup time before the High-to-Low enable transition NC= No change X = Don’t care Z = High impedance “off” state ↓ = High-to-Low enable transition LOGIC DIAGRAM – 74ALS574A VCC = Pin 20 D0 D CP Q Q0 2 19 D1 D CP Q Q1 3 18 D2 D CP Q Q2 4 17 D3 D CP Q Q3 5 16 D4 D CP Q Q4 6 15 D5 D CP Q Q5 7 14 D6 D CP Q Q6 8 13 D7 D CP Q Q7 9 12 11 OE CP GND = Pin 10 SC00110 1 |
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