HEF4093B(2015) データシートの表示（PDF） - NXP Semiconductors.

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HEF4093B
(Rev.:2015)

Quad 2-input NAND Schmitt trigger

NXP Semiconductors. 

Nexperia



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HEF4093B

Quad 2-input NAND Schmitt trigger

DDJ

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Tamb = 25 C.

Fig 9. Typical switching levels as a function of supply voltage





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14. Application information

Some examples of applications for the HEF4093B are:

• Wave and pulse shapers

• Astable multivibrators

• Monostable multivibrators

9''

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Fig 10. Astable multivibrator

&S

5

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Fig 11. Schmitt trigger driven via a

high-impedance input

HEF4093B

Product data sheet

If a Schmitt trigger is driven via a high-impedance (R > 1 k), then it is necessary to

incorporate a capacitor C with a value of --C---- > -V---D----D-----–----V----S---S ; otherwise oscillation can occur

CP

VH

on the edges of a pulse.

Cp is the external parasitic capacitance between inputs and output; the value depends on

the circuit board layout.

Remark: The two inputs may be connected together, but this will result in a larger

through-current at the moment of switching.

All information provided in this document is subject to legal disclaimers.

Rev. 9 — 15 December 2015

© Nexperia B.V. 2017. All rights reserved

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