mc14538bd ON Semiconductor, mc14538bd Datasheet - Page 5

• Manufacturer Part Number: mc14538bd
• Description: Dual Precision Retiggerable/resettable Monostable Multivibrator
• Manufacturer: ON Semiconductor

GENERATOR
GENERATOR
GENERATOR
PULSE
PULSE
PULSE
V
C
R
DD
V
X
X
in
RESET
V
SS
A
B
2
1
4 (12)
5 (11)
3 (13)
(14)
(15)
V
500 pF
SS
A
B
RESET
A′
B′
RESET′
C
X
R
X
C
A
B
RESET
A′
B′
RESET′
X
V
N1
R
P1
V
C
DD
V
SS
X
X
DD
/R
V
C
X
SS
V
X
V
Figure 2. Power Dissipation Test Circuit and Waveforms
I
D
/R
DD
ref1
R
V
X
X
Q′
Q′
SS
′
Q
Q
C
R
X
X
′
′
Q′
Q′
C
Q
Q
C
+
−
X
0.1 mF
CERAMIC
L
C1
′
V
C
ENABLE
C
SS
L
*C
L
Figure 3. Switching Test Circuit
V
C
L
C
SS
L
= 50 pF
L
Figure 1. Logic Diagram
(1/2 of DevIce Shown)
C
C
L
http://onsemi.com
CONTROL
L
C
MC14538B
V
L
ref2
S
S
Q
R
*Includes capacitance of probes,
NOTE: Switching test waveforms
5
RESET LATCH
wiring, and fixture parasitic.
+
−
C2
ENABLE
for PG1, PG2, PG3 are shown
In Figure 4.
V
in
20 ns
t
T, t
t
T, t
t
t
PLH
PLH
PLH(R)
WH
Q
WH
WH
R
R
, t
Characteristics
, t
, t
WL
PHL
, t
PHL
, t
, t
WL
WL
PHL(R)
10%
, t
, t
TLH
TLH
90%
INPUT CONNECTIONS
,
, t
, t
NOTE: Pins 1, 8 and 15 must
THL
THL
R
S
OUTPUT
LATCH
,
,
be externally grounded
Q
Q
Reset
PG3
V
V
DD
DD
PG1 =
PG2 =
PG3 =
20 ns
6 (10)
7 (9)
PG1
PG1
V
V
0 V
A
SS
DD
PG2
PG2
V
B
DD