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HEF4938B Datasheet(PDF) 6 Page - NXP Semiconductors

Part No. HEF4938B
Description  Dual precision monostable multivibrator
Download  8 Pages
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Maker  PHILIPS [NXP Semiconductors]
Homepage  http://www.nxp.com
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HEF4938B Datasheet(HTML) 6 Page - NXP Semiconductors

   
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January 1995
6
Philips Semiconductors
Preliminary specification
Dual precision monostable multivibrator
HEF4938B
AC CHARACTERISTICS
VSS = 0 V; Tamb =25 °C; CL = 50 pF; input transition times ≤ 20 ns
Note
1. The maximum permissible resistance Rt, which holds the specified accuracy of tWO, depends on the leakage current
of the capacitor Ct and the leakage of the HEF4538B.
VDD
V
SYMBOL
MIN.
TYP.
MAX.
Change in output O
5
± 0,2
%
pulse width over
10
∆tWO
± 0,2
%
temperature (Tamb)15
± 0,2
%
Change in output O
pulse width over
∆tWO
± 1,5
%
VDD range 5 to 15 V
Pulse width variation
5
± 1%
Rt = 100 kΩ
Ct = 2 nF to 10 µF
between circuits
10
∆tWO
± 1%
in same package
15
± 1%
External timing
resistor
Rt
5
(1)
k
External timing
capacitor
Ct
2000
no limits
pF
Input capacitance
(pin 2 or 14)
CIN
15
pF


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