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74HCT244BQ Datasheet(PDF) 5 Page - NXP Semiconductors |
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74HCT244BQ Datasheet(HTML) 5 Page - NXP Semiconductors |
5 / 18 page 74HC_HCT244 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2012. All rights reserved. Product data sheet Rev. 4 — 24 September 2012 5 of 18 NXP Semiconductors 74HC244; 74HCT244 Octal buffer/line driver; 3-state 9. Static characteristics 74HCT244 VCC supply voltage 4.5 5.0 5.5 V VI input voltage 0 - VCC V VO output voltage 0 - VCC V t/V input transition rise and fall rate VCC = 4.5 V - 1.67 139 ns/V Tamb ambient temperature 40 - +125 C Table 5. Recommended operating conditions …continued Symbol Parameter Conditions Min Typ Max Unit Table 6. Static characteristics 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 74HC244 VIH HIGH-level input voltage VCC = 2.0 V 1.5 1.2 - 1.5 - 1.5 - V VCC = 4.5 V 3.15 2.4 - 3.15 - 3.15 - V VCC = 6.0 V 4.2 3.2 - 4.2 - 4.2 - V VIL LOW-level input voltage VCC = 2.0 V - 0.8 0.5 - 0.5 - 0.5 V VCC = 4.5 V - 2.1 1.35 - 1.35 - 1.35 V VCC = 6.0 V - 2.8 1.8 - 1.8 - 1.8 V VOH HIGH-level output voltage VI =VIH or VIL IO = 20 A; VCC = 2.0 V 1.9 2.0 - 1.9 - 1.9 - V IO = 20 A; VCC = 4.5 V 4.4 4.5 - 4.4 - 4.4 - V IO = 20 A; VCC = 6.0 V 5.9 6.0 - 5.9 - 5.9 - V IO = 6.0 mA; VCC = 4.5 V 3.98 4.32 - 3.84 - 3.7 - V IO = 7.8 mA; VCC = 6.0 V 5.48 5.81 - 5.34 - 5.2 - V VOL LOW-level output voltage VI =VIH or VIL IO =20 A; VCC = 2.0 V - 0 0.1 - 0.1 - 0.1 V IO =20 A; VCC = 4.5 V - 0 0.1 - 0.1 - 0.1 V IO =20 A; VCC = 6.0 V - 0 0.1 - 0.1 - 0.1 V IO =6.0 mA; VCC = 4.5 V - 0.15 0.26 - 0.33 - 0.4 V IO =7.8 mA; VCC = 6.0 V - 0.16 0.26 - 0.33 - 0.4 V II input leakage current VI =VCC or GND; VCC =6.0 V -- 0.1 - 1.0 - 1.0 A IOZ OFF-state output current per input pin; VI =VIH or VIL; VO =VCC or GND; other inputs at VCC or GND; VCC =6.0 V; IO =0A -- 0.5 - 5.0 - 10 A ICC supply current VI =VCC or GND; IO =0A; VCC =6.0 V - - 8.0 - 80 - 160 A CI input capacitance -3.5 - - - - - pF |
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