LC75864W View Datasheet(PDF) - SANYO -> Panasonic

Part Name

Description

Manufacturer

LC75864W

1/4 Duty LCD Display Drivers with Key Input Function

SANYO -> Panasonic 

Sample Application Circuit 2

1/2 bias (for use with large panels)

LC75864E, 75864W

+5V

*8

10 kΩ ≥ R ≥ 1 kΩ

C ≥ 0.047 µF

+5.5V

R

CR

VDD

VSS

TEST

VLCD

VLCD1

VLCD2

OSC

COM1

COM2

COM3

COM4

P1/S1

P2/S2

P3/S3

P4/S4

S5

(P1) (general-purpose

output ports)

(P2) Used with the

(P3) backlight controller

(P4) or other circuit.

From the

controller

To the controller

To the controller

power supply

*9

CE

CL

DI K K K K K

DO

IIIII

54321

S S S22

22

43

//

KKKKKK

SSSSSS

654321

(S23)

(S24)

Key matrix

(up to 30 keys)

Note: *8.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 LC75864E/W is reset by the VDET.

*9.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.

No. 6860-21/26

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