Datasheet

74AHC_AHCT14_5 © NXP B.V. 2009. All rights reserved.
Product data sheet Rev. 05 — 4 May 2009 10 of 16
NXP Semiconductors
74AHC14; 74AHCT14
Hex inverting Schmitt trigger
14. Application information
a. V
CC
= 4.5 V b. V
CC
= 5.5 V
Fig 11. Typical 74AHCT transfer characteristics
05
V
I
(V)
I
CC
(mA)
6
0
mna414
2
4
1234
02 6
8
0
2
4
6
mna415
4
V
I
(V)
I
CC
(mA)
For 74AHC14:
For 74AHCT14:
Fig 12. Relaxation oscillator
mna035
R
C
f
1
T
---
1
0.55 RC×
-------------------------
≈=
f
1
T
---
1
0.60 RC×
-------------------------
≈=