Datasheet

September 1993 23
Philips Semiconductors Product specification
Programmable delay timer with oscillator 74HC/HCT5555
PACKAGE OUTLINES
See “74HC/HCT/HCU/HCMOS Logic Package Outlines” .
Fig.15 External components configuration for a crystal oscillator.
handbook, halfpage
MLB336
2
RS1
MR (from logic)
R
TC
R2
2.2 kΩ
C3
R
bias
100 kΩ to 1 M Ω
22 to
37 pF
C2 100 pF
Fig.16 Graphic representation of short time delay accuracy; one stage selected; V
CC
= 4.5 V.
handbook, full pagewidth
600
40
0
0 200 300
MGA648
100 500400
8
16
24
32
4
12
20
28
36
programmed time (ns)
deviation (%)
max. expected
typ. expected
min. expected