HEF40106B-Q100
NXP Semiconductors
Hex inverting Schmitt trigger
001aal184
10
V
I
(V)
8
6
4
2
0
V
V
P
N
2.5
7.5
12.5
17.5
V
(V)
DD
Tamb = 25 C.
Fig 9. Typical switching levels as a function of supply voltage
14. Application information
Some examples of applications for the HEF40106B-Q100 are:
• Wave and pulse shapers
• Astable multivibrators
• Monostable multivibrators
R
C
P
R
C
C
mna035
001aal185
Fig 10. Astable multivibrator
Fig 11. Schmitt trigger driven via a
high-impedance input
If a Schmitt trigger is driven via a high-impedance (R > 1 k), then it is necessary to
V
DD – VSS
C
incorporate a capacitor C with a value of ------ > ------------------------ ; 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.
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 [ NXP ]
