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74HCT253DB Scheda tecnica(PDF) 7 Page - NXP Semiconductors |
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74HCT253DB Scheda tecnica(HTML) 7 Page - NXP Semiconductors |
7 / 17 page 74HC_HCT253_3 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2010. All rights reserved. Product data sheet Rev. 03 — 22 April 2010 7 of 17 NXP Semiconductors 74HC253; 74HCT253 Dual 4-input multiplexer; 3-state 11. Dynamic characteristics ΔI CC additional supply current VI =VCC − 2.1 V; other inputs at VCC or GND; VCC = 4.5 V to 5.5 V; IO =0A per input pin; 1In, 2In inputs - 40 144 - 180 - 196 μA per input pin; nOE input - 110 396 - 495 - 539 μA per input pin; Sn input - 110 396 - 495 - 539 μA CI input capacitance -3.5 - pF Table 6. Static characteristics …continued At recommended operating conditions; voltages are referenced to GND (ground = 0 V). Symbol Parameter Conditions 25 °C −40 °C to +85 °C −40 °C to +125 °C Unit Min Typ Max Min Max Min Max Table 7. Dynamic characteristics Voltages are referenced to GND (ground = 0 V); For test circuit see Figure 8. Symbol Parameter Conditions 25 °C −40 °C to +85 °C −40 °C to +125 °C Unit Typ Max Max Max 74HC253 tpd propagation delay 1ln to 1Y or 2ln to 2Y; see Figure 6 [1] VCC = 2.0 V 55 175 220 265 ns VCC = 4.5 V 20 35 44 53 ns VCC = 5.0 V; CL = 15 pF 17 - - - ns VCC = 6.0 V 16 30 37 45 ns Sn to nY; see Figure 6 VCC = 2.0 V 58 175 220 265 ns VCC = 4.5 V 21 35 44 53 ns VCC = 5.0 V; CL = 15 pF 18 - - - ns VCC = 6.0 V 17 30 37 45 ns ten enable time nOE to nY; see Figure 7 [2] VCC = 2.0 V 30 100 125 150 ns VCC = 4.5 V 11 20 25 30 ns VCC = 6.0 V 9 17 21 26 ns tdis disable time nOE to nY; see Figure 7 [3] VCC = 2.0 V 41 150 190 225 ns VCC = 4.5 V 15 30 38 45 ns VCC = 6.0 V 12 26 33 38 ns |
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