HEF40106B_Q100 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2012. All rights reserved.
Product data sheet Rev. 1 — 7 August 2012 9 of 15
NXP Semiconductors
HEF40106B-Q100
Hex inverting Schmitt trigger
14. Application information
Some examples of applications for the HEF40106B-Q100 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
001aal184
V
DD
(V)
2.5 17.512.57.5
4
6
2
8
10
V
I
(V)
0
V
P
V
N
Fig 10. Astable multivibrator Fig 11. Schmitt trigger driven via a
high-impedance input
C
C
P
------
V
DD
V
SS
–
V
H
------------------------->