NJU39610

The specifications on this databook are only

given for information , without any guarantee

as regards either mistakes or omissions. The

application circuits in this databook are

described only to show representative usages

of the product and not intended for the

guarantee or permission of any right including

the industrial rights.

D0

D7

A0

A1

WR

CS

RESET

VV

NJU39610

21

2

19

4

20

3

18

5

1

15

6

22

16

17

7

14

To

µP

+2.5V

Sign

CD

DA

1

1

1

Sign

CD

DA

2

2

2

SS

VDD

Ref

7

8

9

16

15

14

Phase

CD

V

Phase

CD

V

1

1

2

2

R1

R2

E

C

E

C

GND

RC

NJM3771

15 k

Ω

3 300 pF

1.0

Ω

1.0

Ω

M

M

M

M

A1

B1

A2

B2

V

CC

VV

MM1

MM2

+5 V

4

1

19

22

11

3

20

12

5,

6,

17, 18

2

13

21

10

11

2

2

R S

STEPPER

MOTOR

V

MM

Pin numbers refer

to DIP package.

GND (V

)

1 k

Ω

1 k

Ω

820 pF

820 pF

R S

0.1

µF

0.1

µF

+

10

µF

V

(+5 V)

CC

GND

(V

)

CC

MM

Counter

PROM

NJU39610

NJM3771

Voltage

Reference

Control Logic

Step

Direction

Clock Up/Dn

CE

A0

WR

CS

A1

Vref

D0-D7

Figure 14. Typical application in a microprocessor based system.

Figure 13. Typical blockdiagram of an application without a microprocessor.