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| CD54HC4538 Datasheet, PDF (9/11 Pages) Texas Instruments – High Speed CMOS Logic Dual Retriggerable Precision Monostable Multivibrator | |||
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CD54HC4538, CD74HC4538, CD74HCT4538
Typical Performance Curves
HC4538 - TA11646C
HCT4538 - TA13646C
0.70
TA = 25oC
0.70
TA = 25oC
10kâ¦, 10nF
0.69
0.69
10kâ¦, 100nF
100kâ¦, 100nF
10kâ¦, 10nF
10kâ¦, 100nF
0.68
0.68
100kâ¦, 100nF
100kâ¦, 10nF
100kâ¦, 10nF
0.67
0.67
2
3
4 4.5 5 5.5 6
VCC, DC SUPPLY VOLTAGE (V)
FIGURE 8. K FACTOR vs DC SUPPLY VOLTAGE (VCC) - V
2
3
4 4.5 5 5.5 6
VCC, DC SUPPLY VOLTAGE (V)
FIGURE 9. K FACTOR vs DC SUPPLY VOLTAGE (VCC) - V
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
10
HC/HCT4538
104
VCC = 5V, TA = 25oC
103
TA = 25oC
RX = 10kâ¦
2kâ¦
10kâ¦
100kâ¦
VCC = 4.5V
102
VCC = 5V
102
103
104
CX, TIMING CAPACITANCE (pF)
FIGURE 10. K FACTOR vs CX
105
10
102
103
104
CX, TIMING CAPACITANCE (pF)
FIGURE 11. MINIMUM RETRIGGER TIME vs TIMING
CAPACITANCE
9
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