MC14538B View Datasheet(PDF) - Motorola => Freescale
Part Name
Description
MFG CO.
MC14538B Datasheet PDF : 10 Pages
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50%
A
tWH
90%
10%
tTLH
tTHL
B
50%
tTHL
tTLH
90%
10%
tWL
RESET
tTHL
90%
10%
tPHL
50%
tPLH
Q
T
50%
tPLH
50% 50%
tPHL tPHL
tTHL
tTLH
90%
10%
tTLH
tTHL
tWL
tPHL
tPLH
Q
50%
50%
90%
50%
10%
Figure 4. Switching Test Waveforms
50%
VDD
VDD
VDD
trr
50%
50%
TA = 25°C
RX = 100 kΩ
CX = 0.1 µF
1.0
0.8
0% POINT PULSE WIDTH
VDD = 5.0 V, T = 9.8 ms
VDD = 10 V, T = 10 ms
VDD = 15 V, T = 10.2 ms
0.6
0.4
0.2
0
–4 –2 0 2 4
T, OUTPUT PULSE WIDTH (%)
Figure 5. Typical Normalized Distribution
of Units for Output Pulse Width
1000
RX = 100 kΩ, CL = 50 pF
100 ONE MONOSTABLE SWITCHING ONLY
VDD = 15 V
10
5.0 V
10 V
1.0
0.1
0.001
0.1
1.0
10
100
OUTPUT DUTY CYCLE (%)
Figure 7. Typical Total Supply Current
versus Output Duty Cycle
MOTOROLA CMOS LOGIC DATA
RX = 100 kΩ
CX = 0.1 µF
2
1
0
1
2
5 6 7 8 9 10 11 12 13 14 15
VDD, SUPPLY VOLTAGE (VOLTS)
Figure 6. Typical Pulse Width Variation as
a Function of Supply Voltage VDD
Reset
H
H
H
H
H
H
L
FUNCTION TABLE
Inputs
Outputs
A
B
Q
Q
H
L
L
H
Not Triggered
Not Triggered
L, H,
L
H
L, H,
Not Triggered
Not Triggered
X
X
L
H
X
X
Not Triggered
MC14538B
5
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