HEF4047BPN データシートの表示（PDF） - Philips Electronics

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HEF4047BPN

Monostable/astable multivibrator

Philips Electronics 

Philips Semiconductors

Monostable/astable multivibrator

Product specification

HEF4047B

MSI

Minimum MR pulse

width; HIGH

Minimum input

pulse width; any

input exept MR

VDD

V

5

10

15

SYMBOL MIN. TYP. MAX.

tWMRH

60 30

30 15

20 10

TYPICAL EXTRAPOLATION

FORMULA

5

10 tW

15

220 110

100 50

70 35

APPLICATION INFORMATION

General features:

• Monostable (one-shot) or astable (free-running)

operation

• True and complemented buffered outputs

• Only one external R and C required

Monostable multivibrator features:

• Positive- or negative-edge triggering

• Output pulse width independent of trigger pulse duration

• Retriggerable option for pulse-width expansion

• Long pulse width possible using small RC components

by means of external counter provision

• Fast recovery time essentially independent of pulse

width

• Pulse-width accuracy maintained at duty cycles

approaching 100%

Astable multivibrator features:

• Free-running or gatable operating modes

• 50% duty cycle

• Oscillator output available

January 1995

7

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