Myalarm V-LCD1 Manual de usuario descargar pdf (Pagina 25)

No. 7159--25/26

LC75813E, 75813T

Sample Application Circuit 7

1/4 Duty, 1/3 Bias (for use with nornal panels)

Sample Application Circuit 8

1/4 Duty, 1/3 Bias (for use with large panels)

C

+5 V

+3 V

*2

C

From the

controller

Used for functions

such as backlight

control

General-purpose

output ports

(P8)

(P2)

(P1)

C ≥ 0.047µF

DI

CL

CE

INH

VLCD2

VLCD1

VLCD

VSS

S86

S85

S9

P8/S8

P1/S1

S87/COM4

P2/S2

COM3

COM2

COM1

OSC

VDD

LCD panel (up to 344 segments)

C

+5 V

+3 V

*2

R

R

R

C

DI

CL

CE

INH

VLCD2

VLCD1

VLCD

VSS

S86

S85

S9

P8/S8

P1/S1

S87/COM4

P2/S2

COM3

COM2

COM1

OSC

VDD

From the

controller

Used for functions

such as backlight

control

General-purpose

output ports

(P8)

(P2)

(P1)

10 kΩ ≥ R ≥ 1 kΩ

C ≥ 0.047 µF

LCD panel (up to 344 segments)

Note: *2 When a capacitor except the recommended external capacitance (Cosc = 1000 pF) is connected the OSC pin, we recommend that applications

connect the OSC pin with a capacitor in the range 220 to 2200 pF.

Note: *2 When a capacitor except the recommended external capacitance (Cosc = 1000 pF) is connected the OSC pin, we recommend that applications

connect the OSC pin with a capacitor in the range 220 to 2200 pF.

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