MC74HC390A datasheet(6/8 Pages) ONSEMI

Il numero della parte	MC74HC390A

Spiegazioni elettronici	Dual 4-Stage Binary Ripple Counter with 첨2 and 첨5 Sections

Download	8 Pages

Scroll/Zoom	100%

Produttore elettronici	ONSEMI [ON Semiconductor]

Homepage	http://www.onsemi.com

Logo

6 / 8 page

MC74HC390A

http://onsemi.com

6

APPLICATIONS INFORMATION

Each half of the MC54/74HC390A has independent

÷ 2

and

÷ 5 sections (except for the Reset function). The ÷ 2 and

÷ 5 counters can be connected to give BCD or bi–quinary

(2–5) count sequences. If Output QA is connected to the

Clock B input (Figure 4), a decade divider with BCD output

is obtained. The function table for the BCD count sequence

is given in Table 1.

To obtain a bi–quinary count sequence, the input signals

connected to the Clock B input, and output QD is connected

to the Clock A input (Figure 5). QA provides a 50% duty

cycle output. The bi–quinary count sequence function table

is given in Table 2.

Table 1. BCD Count Sequence*

Output

Count

QD

QC

QB

QA

0

L

1

L

H

2

L

H

L

3

L

H

4

L

H

L

5

L

H

L

H

6

L

H

L

7

L

H

8

H

L

9

H

L

H

*QA connected to Clock B input.

Table 2. Bi–Quinary Count Sequence**

Output

Count

QA

QD

QC

QB

0

L

1

L

H

2

L

H

L

3

L

H

4

L

H

L

8

H

L

9

H

L

H

10

H

L

H

L

11

H

L

H

12

H

L

** QD connected to Clock A input.

CONNECTION DIAGRAMS

1, 15

÷ 2

COUNTER

CLOCK A

RESET

Figure 4. BCD Count

Figure 5. Bi-Quinary Count

÷ 2

COUNTER

÷ 5

COUNTER

÷ 5

COUNTER

CLOCK B

CLOCK A

RESET

CLOCK B

1, 15

QA

QB

QC

QD

3, 13

5, 11

6, 10

7, 9

4, 12

2, 14

QA

QB

QC

QD

3, 13

5, 11

6, 10

7, 9

4, 12

2, 14

Codice articolo simile - MC74HC390A

Produttore elettronici	Il numero della parte	Scheda tecnica	Spiegazioni elettronici
ON Semiconductor	MC74HC390A	127Kb / 10P	Dual 4?뭆tage Binary Ripple Counter with /2and /5 Sections High?뭁erformance Silicon?묰ate CMOS June, 2005 ??Rev. 3
	MC74HC390AD	127Kb / 10P	Dual 4?뭆tage Binary Ripple Counter with /2and /5 Sections High?뭁erformance Silicon?묰ate CMOS June, 2005 ??Rev. 3
	MC74HC390ADG	127Kb / 10P	Dual 4?뭆tage Binary Ripple Counter with /2and /5 Sections High?뭁erformance Silicon?묰ate CMOS June, 2005 ??Rev. 3
	MC74HC390ADG	127Kb / 8P	Dual 4-Stage Binary Ripple Counter August, 2014 ??Rev. 7
	MC74HC390ADR2	127Kb / 10P	Dual 4?뭆tage Binary Ripple Counter with /2and /5 Sections High?뭁erformance Silicon?묰ate CMOS June, 2005 ??Rev. 3

More results

Descrizione simile - MC74HC390A

Produttore elettronici	Il numero della parte	Scheda tecnica	Spiegazioni elettronici
ON Semiconductor	MC54-74HC390	216Kb / 8P	Dual 4-Stage Binary Ripple Counter with 첨2 and 첨5 Sections REV 6
	MC74HC390A	127Kb / 8P	Dual 4-Stage Binary Ripple Counter August, 2014 ??Rev. 7
	MC84-74HC393	196Kb / 7P	Dual 4-Stage Binary Ripple Counter REV 6
System Logic Semiconduc...	SL74HC393	50Kb / 7P	Dual 4-Stage Binary Ripple Counter
ON Semiconductor	MC74HC393A	188Kb / 8P	Dual 4-Stage Binary Ripple Counter March, 2000 ??Rev. 2
	MC74HC393A	120Kb / 8P	Dual 4-Stage Binary Ripple Counter August, 2014 ??Rev. 7
	MC74HC4020A	167Kb / 8P	14-Stage Binary Ripple Counter March, 2000 ??Rev. 2
	MC74HC4040A	170Kb / 8P	12-Stage Binary Ripple Counter May, 2000 ??Rev. 3
Integral Corp.	IW4040B	59Kb / 7P	12-Stage Binary Ripple Counter
NXP Semiconductors	74HC4024N	99Kb / 18P	7-stage binary ripple counter Rev. 03-12 November 2004

More results

MC74HC390A Scheda tecnica(PDF) 6 Page - ON Semiconductor

MC74HC390A Scheda tecnica(HTML) 6 Page - ON Semiconductor

Codice articolo simile - MC74HC390A

Descrizione simile - MC74HC390A

Html Pages

1 2 3 4 5 6 7 8

Scheda tecnica Scarica

Link URL