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74HC237D Fiches technique(PDF) 9 Page - NXP Semiconductors |
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74HC237D Fiches technique(HTML) 9 Page - NXP Semiconductors |
9 / 19 page 9397 750 13807 © Koninklijke Philips Electronics N.V. 2004. All rights reserved. Product data sheet Rev. 03 — 12 November 2004 9 of 19 Philips Semiconductors 74HC237 3-to-8 line decoder, demultiplexer with address latches 11. Dynamic characteristics Table 8: Dynamic characteristics GND = 0 V; tr =tf = 6 ns; CL = 50 pF; see Figure 9. Symbol Parameter Conditions Min Typ Max Unit Tamb = 25 °C tPHL, tPLH propagation delay An to Yn see Figure 6 VCC = 2.0 V - 52 160 ns VCC = 4.5 V - 19 32 ns VCC = 6.0 V - 15 27 ns VCC = 5.0 V; CL = 15 pF - 16 - ns propagation delay LE to Yn see Figure 6 VCC = 2.0 V - 61 190 ns VCC = 4.5 V - 22 38 ns VCC = 6.0 V - 18 32 ns VCC = 5.0 V; CL = 15 pF - 19 - ns propagation delay E1to Yn see Figure 7 VCC = 2.0 V - 47 145 ns VCC = 4.5 V - 17 29 ns VCC = 6.0 V - 14 25 ns VCC = 5.0 V; CL = 15 pF - 14 - ns propagation delay E2 to Yn see Figure 6 VCC = 2.0 V - 47 145 ns VCC = 4.5 V - 17 29 ns VCC = 6.0 V - 14 25 ns VCC = 5.0 V; CL = 15 pF - 14 - ns tTHL, tTLH output transition time see Figure 7 VCC = 2.0 V - 19 75 ns VCC = 4.5 V - 7 15 ns VCC = 6.0 V - 6 13 ns tW LE pulse width HIGH see Figure 8 VCC = 2.0 V 50 11 - ns VCC = 4.5 V 10 4 - ns VCC = 6.0 V 9 3 - ns tsu set-up time An to LE see Figure 8 VCC = 2.0 V 50 6 - ns VCC = 4.5 V 10 2 - ns VCC = 6.0 V 9 2 - ns th hold time An to LE see Figure 8 VCC = 2.0 V 30 3 - ns VCC = 4.5 V 6 1 - ns VCC = 6.0 V 5 1 - ns CPD power dissipation capacitance VI = GND to VCC [1] -60 - pF |
Numéro de pièce similaire - 74HC237D |
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Description similaire - 74HC237D |
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