LC75804 查看數據表（PDF） - SANYO -> Panasonic

零件编号

产品描述 (功能)

比赛名单

LC75804

1/3, 1/4 Duty LCD Display Drivers with Key Input Function

SANYO -> Panasonic 

LC75804E, LC75804W

Sample Application Circuit 4

1/3 duty, 1/3 bias (for use with large panels)

+5V

*9

10 kΩ ≥ R ≥ 1 kΩ

C ≥ 0.047 µF

+5.5V

R

R

CC R

From the controller

To the controller

To the controller

power supply

*11

VDD

VSS

TEST

VLCD

VLCD1

OSC

COM1

COM2

COM3

P1/S1

P2/S2

P8/S8

S9

VLCD2

RES *10

CE

CL

DI K K K K K

DO

IIIII

54321

S73

COM4/S74

SS

77

65

//

KKKKKK

SSSSSS

654321

(P1)

(P2)

(P8)

(general-purpose output ports)

Used with the backlight

controller or other circuit.

(S75)

(S76)

Key matrix

(up to 30 keys)

Notes:*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 LC75804E/W is reset by the VDET.

*10. If the RES pin is not used for system reset, it must be connected to the logic block power supply VDD.

*11. 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. 6266-30/37

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