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74HCT244 Arkusz danych(PDF) 6 Page - NXP Semiconductors |
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74HCT244 Arkusz danych(HTML) 6 Page - NXP Semiconductors |
6 / 22 page 74HC_HCT244_3 © Koninklijke Philips Electronics N.V. 2005. All rights reserved. Product data sheet Rev. 03 — 22 December 2005 6 of 22 Philips Semiconductors 74HC244; 74HCT244 Octal buffer/line driver; 3-state [1] For DIP20 package: Ptot derates linearly with 12 mW/K above 70 °C. [2] For SO20 package: Ptot derates linearly with 8 mW/K above 70 °C. [3] For SSOP20 and TSSOP20 packages: Ptot derates linearly with 5.5 mW/K above 60 °C [4] For DHVQFN20 packages: Ptot derates linearly with 4.5 mW/K above 60 °C. 9. Recommended operating conditions 10. Static characteristics Table 6: Recommended operating conditions Symbol Parameter Conditions Min Typ Max Unit 74HC244 VCC supply voltage 2.0 5.0 6.0 V VI input voltage 0 - VCC V VO output voltage 0 - VCC V Tamb ambient temperature −40 25 +125 °C tr, tf input rise and fall time VCC = 2.0 V - - 1000 ns VCC = 4.5 V - 6.0 500 ns VCC = 6.0 V - - 400 ns 74HCT244 VCC supply voltage 4.5 5.0 5.5 V VI input voltage 0 - VCC V VO output voltage 0 - VCC V Tamb ambient temperature −40 25 +125 °C tr, tf input rise and fall time VCC = 4.5 V - 6.0 500 ns Table 7: Static characteristics 74HC244 At recommended operating conditions; voltages are referenced to GND (ground = 0V). Symbol Parameter Conditions Min Typ Max Unit Tamb =25 °C VIH HIGH-state input voltage VCC = 2.0 V 1.5 1.2 - V VCC = 4.5 V 3.15 2.4 - V VCC = 6.0 V 4.2 3.2 - V VIL LOW-state input voltage VCC = 2.0 V - 0.8 0.5 V VCC = 4.5 V - 2.1 1.35 V VCC = 6.0 V - 2.8 1.8 V VOH HIGH-state output voltage VI = VIH or VIL --- IO = −20 µA; VCC = 2.0 V 1.9 2.0 - V IO = −20 µA; VCC = 4.5 V 4.4 4.5 - V IO = −20 µA; VCC = 6.0 V 5.9 6.0 - V IO = −6.0 mA; VCC = 4.5 V 3.98 4.32 - V IO = −7.8 mA; VCC = 6 V 5.48 5.81 - V |
Podobny numer części - 74HCT244 |
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Podobny opis - 74HCT244 |
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