Data Sheet

©
Nexperia B.V. 2017. All rights reserved
HEF40106B All information provided in this document is subject to legal disclaimers.
Product data sheet Rev. 8 — 10 December 2015 9 of 15
Nexperia
HEF40106B
Hex inverting Schmitt trigger
14. Application information
Some examples of applications for the HEF40106B are:
• Wave and pulse shapers
• Astable multivibrators
• Monostable multivibrators
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 ; otherwise oscillation can occur
on the edges of a pulse.
C
p
is the external parasitic capacitance between inputs and output; the value depends on
the circuit board layout.
T
amb
= 25 C.
Fig 9. Typical switching levels as a function of supply voltage
DDO
9
''
9
 





9
,

9

9
3
9
1
Fig 10. Astable multivibrator Fig 11. Schmitt trigger driven via a
high-impedance input
PQD

5
&
DDO
5
&
3
&
C
C
P
------
V
DD
V
SS
–
V
H
------------------------->