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74LVCH244AD Scheda tecnica(PDF) 8 Page - NXP Semiconductors |
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74LVCH244AD Scheda tecnica(HTML) 8 Page - NXP Semiconductors |
8 / 17 page 2003 Oct 30 8 Philips Semiconductors Product specification Octal buffer/line driver with 5 V tolerant inputs/outputs (3-state) 74LVC244A; 74LVCH244A Notes 1. All typical values are measured at VCC = 3.3 V and Tamb =25 °C. 2. For bushold parts, the bushold circuit is switched off when VI >VCC allowing 5.5 V on the input pin. 3. Valid for data inputs of bushold parts (74LVCH244A) only. For data inputs only, control inputs do not have a bushold circuit. 4. The specified sustaining current at the data inputs do not have a bushold circuit. 5. The specified overdrive current at the data input forces the data input to the opposite logic input state. Tamb = −40 to +125 °C VIH HIGH-level input voltage 1.2 VCC −− V 2.7 to 3.6 2.0 −− V VIL LOW-level input voltage 1.2 −− GND V 2.7 to 3.6 −− 0.8 V VOH HIGH-level output voltage VI =VIH or VIL IO = −100 µA 2.7 to 3.6 VCC − 0.3 −− V IO = −12 mA 2.7 VCC − 0.65 −− V IO = −18 mA 3.0 VCC − 0.75 −− V IO = −24 mA 3.0 VCC − 1 −− V VOL LOW-level output voltage VI =VIH or VIL IO = 100 µA 2.7 to 3.6 −− 0.3 V IO = 12 mA 2.7 −− 0.6 V IO = 24 mA 3.0 −− 0.8 V ILI input leakage current VI = 5.5 V or GND; notes 2 3.6 −− ±20 µA IOZ 3-state output OFF-state current VI =VIH or VIL; VO = 5.5 V or GND; notes 2 3.6 −− ±20 µA Ioff power-off leakage supply current VI or VO = 5.5 V 0.0 −− ±20 µA ICC quiescent supply current VI =VCC or GND; IO =0 3.6 −− 40 µA ∆I CC additional quiescent supply current per input pin VI =VCC − 0.6 V; IO =0 2.7 to 3.6 −− 5000 µA IBH(L) bushold LOW sustaining current VI = 0.8 V; notes 3 and 4 3.0 60 −− µA IBH(H) bushold HIGH sustaining current VI = 2.0 V; notes 3 and 4 3.0 −60 −− µA IBH(LO) bushold LOW overdrive current notes 3 and 5 3.6 500 −− µA IBH(HO) bushold HIGH overdrive current notes 3 and 5 3.6 −500 −− µA SYMBOL PARAMETER TEST CONDITIONS MIN. TYP.(1) MAX. UNIT OTHER VCC (V) |
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