UPD16662 View Datasheet(PDF) - NEC => Renesas Technology

Part Name

Description

Manufacturer

UPD16662

240 OUTPUT LCD COLUMN (SEGMENT) DRIVER WITH BUILT-IN RAM

NEC => Renesas Technology 

µPD16662

LSI arrangement and address management

Addresses can be managed to allow up to four of these LSIs to be used to configure a liquid-crystal display of up to

half VGA size (320 x 480 dots). Up to four of these LSIs can be connected on the same bus sharing the /CS, /WE,

and /OE pins. On the system side, one screen of the liquid crystal display can be treated as one memory area, and it

is not necessary to decode for more than one µPD16662. The PL0 and PL1 pins are used to specify LSI No. and to

determine the LSI arrangement. The DIR pins are used to determine the directions (vertical, horizontal) of the liquid-

crystal display.

PL1

PL0

LSI No.

0

0

No. 0

0

1

No. 1

1

0

No. 2

1

1

No. 3

1. Addresses of the VGA half-size horizontally (DIR = "0")

Specified

with

A16 to A8

Specified with A7 to A0

Column

Column

Y1

X1 00000

00100

00002

00038

Y240 Y1

0003A 0003C

0013A 0013C

0003E

00074

Y240

00076

00176

Row

No.0

No.2

09E00

X160 09F00

X1 0A000

0A100

09F02

0A002

09F38

0A038

09E3A

09F3A

0A03A

0A13A

09E3C

09F3C

0A03C

0A13C

09F3E

0A03E

09F74

0A074

09E76

09F76

0A076

0A176

Row

No.1

No.3

13E00

X160 13F00

Y240

13F02

13F38

13E3A 13E3C

13F3A 13F3C

Y1 Y240

13F3E

13F74

13E76

13F76

Y1

Column

Column

11

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