LC75863W 查看數據表（PDF） - SANYO -> Panasonic

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LC75863W

1/3 Duty LCD Display Drivers with Key Input Function

SANYO -> Panasonic 

Sample Application Circuit 4

1/3 bias (for use with large panels)

LC75863E, 75863W

+5 V

10 kΩ ≥ R ≥ 1 kΩ

C ≥ 0.047 µF

+5.5 V

*8

R

R

CC

R

From the

controller

To the controller

To the controller

power supply

*9

VDD

VSS

TEST

VLCD

VLCD1

VLCD2

OSC

COM1

COM2

COM3

P1/S1

P2/S2

P3/S3

P4/S4

S5

S S S23

22

CE

54

CL

//

DI K K K K K

DO

IIIII

54321

KKKKKK

SSSSSS

654321

(general-purpose

(P1) output ports)

(P2)

Used with the

(P3)

backlight controller

(P4)

or other circuit.

(S24)

(S25)

Key matrix

(up to 30 keys)

Note: *8.

*9.

Add a capacitor to the logic block power supply line so that the logic block power supply voltage VDD rise time when power is applied and the

logic block power supply voltage VDD fall time when power drops are both at least 1 ms, as the LC75863E/W is reset by the VDET.

The DO pin, being an open-drain output, requires a pull-up resistor. Select a resistance (between 1 to 10 kΩ) appropriate for the capacitance of

the external wiring so that signal waveforms are not degraded.

Notes on transferring display data from the controller

The display data (D1 to 75) is transferred to the LC75863E/W in two operations. All of the display data should be

transferred within 30 ms to maintain the quality of the displayed image.

No. 7135-21/24

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