LC450029PKB

www.onsemi.com

20

Sample Applications Circuit 1

1/4 duty, Display data (D1 to D208), Internal oscillator operating mode

Sample Applications Circuit 2

1/4 duty, Display data (D1 to D204), External clock operating mode

*2 Connect capacitors between a power supply line and GND for noise removal and power supply stabilization.

Determine the value of a capacitor, after an actual circuit board estimates.

*3 In 1/4 duty, S51 pad outputs VSS level.

*4 When OSCI pad is not to be used, select the internal oscillator operating mode (control data OC=“0”),

and OSCI pad is connected to GND.

*5 In external clock operating mode, S53 pad outputs VSS level.

DI

CL

CE

OSCI

COM4

S5

S4

S2

S1

COM3

COM2

COM1

*2

+5V

S3

S50

S51

S52

S53

(OPEN) *3

C

VLOGIC

(OPEN)

(OPEN)

(OPEN)

C

VDDI

Controller

*2

*4

VSS

VDD2

VDD1

VDD

INH

DI

CL

CE

OSCI

COM4

S5

S4

S2

S1

COM3

COM2

COM1

+5V

S3

S50

S51

S52

S53

(OPEN) *3

VLOGIC

(OPEN)

(OPEN)

(OPEN)

VDDI

Controller

(OPEN) *5

*2

C

C *2

VSS

VDD2

VDD1

VDD

INH