MC74HC4538A
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6
OUTPUT PULSE WIDTH CHARACTERISTICS (R
x
= 10 kW, C
x
= 0.1 mF, C
L
= 50 pF)
Symbo
Parameter
Conditions Guaranteed Limits
UnitTiming Components
V
CC
V
–55 to 25_C ≤ 85_C ≤ 125_C
Min Max Min Max Min Max
τ
Output Pulse Width (Note 8)
(Figures 5 and 6)
R
x
= 10 kW,
C
x
= 0.1 mF
5.0
0.63 0.77 0.6 0.8 0.59 0.81 ms
Pulse Width Match Between
Circuits in the same Package
±5.0 %
Pulse Width Match Variation
(Part to Part) (Note 10)
±10 %
OUTPUT PULSE WIDTH CHARACTERISTICS (R
x
= 100 kW, C
x
= 1 nF, C
L
= 50 pF)
Symbo
Parameter
Conditions Guaranteed Limits
Unit
Timing
Components
V
CC
V
Ambient
Temperature
Min Typ Max
τ
Output Pulse Width (Note 9)
R
x
= 100 kW,
C
x
= 1 nF
5.0
25°C − 79 −
ms
Pulse Width Match Between Circuits in the
same Package
−55 to 125°C −5.0 − +5.0 %
Pulse Width Match Variation (Part to Part)
(Note 10)
−55 to 125°C −10 − +10 %
− Temperature Variance −55 to 125°C − +0.05 −
ms/°C
− Power Supply Variance −55 to 125°C − −8.0 −
ms/V
8. τ = kR
x
C
x
and k = 0.7 for the output pulse width corresponding to R
x
= 10 kW, C
x
= 0.1 mF.
9. τ = kR
x
C
x
and k = 0.79 for the output pulse width corresponding to R
x
= 100 kW, C
x
= 1 nF.
10.Pulse width match variation between ICs (part−to−part) is defined with identical R
x
, C
x
, V
CC
and a specific temperature.