UPD16430AGF-3B9 查看數據表（PDF） - NEC => Renesas Technology

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UPD16430AGF-3B9

1/2, 1/3, 1/4 DUTY LCD CONTROLLER/DRIVER

NEC => Renesas Technology 

µPD16430A

PIN FUNCTIONS

No. Symbol

1 LCD0

to to

32 LCD31

35 LCD32

to to

62 LCD59

63 COM0

to to

66 COM3

67 VLC2

68 VLC1

69 VLC0

70 VLCD

I/O

Output

Output

—

—

Output Type

CMOS

CMOS

—

—

Description

These pins serve as the LCD driver’s segment signal output pins.

The following display modes can be selected for the LCD driver.

Display

Duty Bias

Dot No.

Frame frequency (Hz)

(fosc = 140 kHz)

1/2 1/2

120

fosc fosc fosc fosc

256 , 512 , 1024 , 2048

(547) (273) (137) (68)

1/3 1/3

160

fosc fosc fosc fosc

384 , 768 , 1536 , 3072

(365) (182) (91) (46)

1/4 1/3

240

fosc fosc fosc fosc

512 , 1024 , 2048 , 4096

(273) (137) (68) (34)

A matrix of these segment signal output pins and COM3, COM2, COM1

and COM0 pins enables the maximum display of 240 dots (1/4 duty

selected).

The output voltage of the segment signal output pins is supplied by the

VLCD pin.

The output voltage of the segment signal output pin is supplied by dividing

and outputting 0 to VLCD voltage using any driving method (any bias

method).

Either internal or external voltage dividing resistor can be selected.

These pins serve as the LCD driver’s common signal output pins.

The LCD driver can select three display modes.

A matrix of these common signal output pins and LCD59 through LCD0

pins enables the maximum display of 240 dots (1/4 duty selected).

The output voltage of the common signal output pins is supplied by the

VLCD pin.

VDD to 14 V voltage is supplied by this pin.

The output voltage of the common signal output pins is supplied by

dividing and outputting 0 to VLCD voltage using any driving method (any

bias method).

Either internal or external dividing resistor can be selected.

These pins serve as the LCD driver’s drive voltage generation pins.

The drive voltage can be set by using either these pins or the on-chip

drive voltage generation circuit, as specified by command data.

This pin supplies the LCD driver’s supply voltage.

VDD to 14 V voltage is supplied to this pin.

The output voltage of the segment signal and command signal output pins

is supplied by dividing and outputting the voltage applied to these pins

using any driving method (any bias method).

Do not supply a voltage exceeding VDD to the VLCD pin before the device’s

supply voltage reaches 3.5 V, as this may cause incorrect display.

3

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