Datasheet

January 1995 7
Philips Semiconductors Product specification
Dual precision monostable multivibrator
HEF4538B
MSI
Fig.5 Waveforms showing minimum I
0
, I
1
, O and C
D
pulse widths, recovery times and propagation delays.
Fig.6 Timing diagram.
(1) Positive edge triggering.
(2) Positive edge re-triggering (pulse lengthening).
(3) Negative edge triggering.
(4) Reset (pulse shortening).
(5) T = R
t
× C
t
.