CD4047BM datasheet(4/6 Pages) NSC

No de pièce	CD4047BM

Description	Low Power Monostable/Astable Multivibrator

PDF	6 Pages

Scroll/Zoom	100%

Fabricant	NSC [National Semiconductor (TI)]

Site Internet	http://www.national.com

Logo

4 / 6 page

Logic Diagram

TLF5969 – 3

Special input protection circuit to permit larger input-voltage swings

Truth Table

Terminal Connections

Output Pulse

Typical Output

Function

To VDD

To VSS

Input Pulse

From

Period or

Pulse Width

Astable Multivibrator

Free-Running

4 5 6 14

7 8 9 12

10 11 13

tA (10 11) e 440 RC

True Gating

4 6 14

7 8 9 12

10 11 13

tA (13) e 220 RC

Complement Gating

6 14

5 7 8 9 12

10 11 13

Monostable Multivibrator

Positive-Edge Trigger

4 14

5 6 7 9 12

10 11

Negative-Edge Trigger

4 8 14

5 7 9 12

10 11

tM (10 11) e 248 RC

Retriggerable

4 14

5 6 7 9

8 12

10 11

External Countdown

5 6 7 8 9 12

(See Figure)

Note

External resistor between terminals 2 and 3 External capacitor between terminals 1 and 3

Typical Implementation of External Countdown Option

TLF5969 – 4

tEXT e (N b 1) tA a (tM a tA 2)

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