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CD74HC4538QPWRG4Q1 Folha de dados(PDF) 4 Page - Texas Instruments |
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CD74HC4538QPWRG4Q1 Folha de dados(HTML) 4 Page - Texas Instruments |
4 / 16 page CD74HC4538-Q1 HIGH-SPEED CMOS LOGIC DUAL RETRIGGERABLE PRECISION MONOSTABLE MULTIVIBRATOR SCLS595A − NOVEMBER 2004 − REVISED APRIL 2008 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 recommended operating conditions (see Note 3) MIN MAX UNIT VCC Supply voltage 2 6 V VCC = 2 V 1.5 VIH High-level input voltage VCC = 4.5 V 3.15 V VIH High level input voltage VCC = 6 V 4.2 V VCC = 2 V 0.5 VIL Low-level input voltage VCC = 4.5 V 1.35 V VIL Low level input voltage VCC = 6 V 1.8 V VI Input voltage 0 VCC V VO Output voltage 0 VCC V VCC = 2 V 0 1000 Reset input VCC = 4.5 V 0 500 t Input transition (rise and fall) time Reset input VCC = 6 V 0 400 ns tt Input transition (rise and fall) time VCC = 2 V 0 Unlimited ns Trigger inputs A or B VCC = 4.5 V 0 Unlimited Trigger inputs A or B VCC = 6 V 0 Unlimited RX External timing resistor (see Note 4) 5 k Ω CX External timing capacitor (see Note 4) 0 F TA Operating free-air temperature −40 125 °C NOTES: 3. 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. 4. The maximum allowable values of RX and CX are a function of leakage of capacitor CX, leakage of the CD74HC4538, and leakage due to board layout and surface resistance. Values of RX and CX should be chosen so that the maximum current into pin 2 or pin 14 is 30 mA. Susceptibility to externally induced noise signals may occur for RX > 1 MΩ. |
Nº de peça semelhante - CD74HC4538QPWRG4Q1 |
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Descrição semelhante - CD74HC4538QPWRG4Q1 |
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