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SN74LV221APWRE4 Fiches technique(PDF) 5 Page - Texas Instruments |
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SN74LV221APWRE4 Fiches technique(HTML) 5 Page - Texas Instruments |
5 / 19 page SN54LV221A, SN74LV221A DUAL MONOSTABLE MULTIVIBRATORS WITH SCHMITT TRIGGER INPUTS SCLS450G − DECEMBER 1999 − REVISED APRIL 2005 5 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 recommended operating conditions (see Note 4) SN54LV221A SN74LV221A UNIT MIN MAX MIN MAX UNIT VCC Supply voltage 2 5.5 2 5.5 V VCC = 2 V 1.5 1.5 VIH High-level input voltage VCC = 2.3 V to 2.7 V VCC × 0.7 VCC × 0.7 V VIH High-level input voltage VCC = 3 V to 3.6 V VCC × 0.7 VCC × 0.7 V VCC = 4.5 V to 5.5 V VCC × 0.7 VCC × 0.7 VCC = 2 V 0.5 0.5 VIL Low-level input voltage VCC = 2.3 V to 2.7 V VCC × 0.3 VCC × 0.3 V VIL Low-level input voltage VCC = 3 V to 3.6 V VCC × 0.3 VCC × 0.3 V VCC = 4.5 V to 5.5 V VCC × 0.3 VCC × 0.3 VI Input voltage 0 5.5 0 5.5 V VO Output voltage 0 VCC 0 VCC V VCC = 2 V −50 −50 µA IOH High-level output current VCC = 2.3 V to 2.7 V −2 −2 IOH High-level output current VCC = 3 V to 3.6 V −6 −6 mA VCC = 4.5 V to 5.5 V −12 −12 mA VCC = 2 V 50 50 µA IOL Low-level output current VCC = 2.3 V to 2.7 V 2 2 IOL Low-level output current VCC = 3 V to 3.6 V 6 6 mA VCC = 4.5 V to 5.5 V 12 12 mA Rext External timing resistance VCC = 2 V 5k 5k Ω Rext External timing resistance VCC ≥ 3 V 1k 1k Ω Cext External timing capacitance No restriction No restriction pF ∆t/∆VCC Power-up ramp rate 1 1 ms/V TA Operating free-air temperature −55 125 −40 85 °C NOTE 4: All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report, Implications of Slow or Floating CMOS Inputs, literature number SCBA004. PRODUCT PREVIEW information concerns products in the formative or design phase of development. Characteristic data and other specifications are design goals. Texas Instruments reserves the right to change or discontinue these products without notice. |
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