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TI(德州仪器) SN74LS19A
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  • TI(德州仪器) SN74LS19A
  • TI(德州仪器) SN74LS19A
  • TI(德州仪器) SN74LS19A
  • TI(德州仪器) SN74LS19A
  • TI(德州仪器) SN74LS19A
  • TI(德州仪器) SN74LS19A
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SN74LS19A

SN74LS19A

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具有施密特触发输入的 6 通道、4.75V 至 5.25V 双极反相器

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Each circuit functions as a NAND gate or inverter, but because of the Schmitt action, it has different input threshold levels for positive-going (VT+) and for negative-going (VT-) signals. The hysteresis or backlash, which is the difference between the two threshold levels (VT+ - VT-), is typically 800 millivolts.

These circuits are temperature-compensated and can be triggered from the slowest of input ramps and still give clean, jitter-free output signals.

 

  • Functionally and Mechanically Identical to 'LS13, 'LS14, and 'LS132, Respectively
  • Improved Line-Receiving Characteristics
  • P-N-P Inputs Reduce System Loading
  • Excellent Noise Immunity with Typical Hysteresis of 0.8 V

 

Technology familyLS
Supply voltage (min) (V)4.75
Supply voltage (max) (V)5.25
Number of channels6
IOL (max) (mA)8
IOH (max) (mA)-0.4
Supply current (max) (µA)30000
Input typeSchmitt-Trigger
Output typePush-Pull
FeaturesHigh speed (tpd 10-50ns), Input clamp diode
RatingCatalog
Operating temperature range (°C)0 to 70
PDIP (N)14181.42 mm² 19.3 x 9.4
SOIC (D)1451.9 mm² 8.65 x 6
SOP (NS)1479.56 mm² 10.2 x 7.8
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