LH1594 SHARP [Sharp Electrionic Components], LH1594 Datasheet

LH1594

Manufacturer Part Number

LH1594

Description

80-Segment and 17-Common Outputs LCD Driver IC with A Built-in CGROM

Manufacturer

SHARP [Sharp Electrionic Components]

Datasheet

1.LH1594.pdf (48 pages)

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DESCRIPTION

The LH1594/LH1595 are LCD drivers with a built-in

character ROM suitable for driving small scale dot-

matrix LCD panels, and which are capable of being

directly

microcomputer. The 8-bit parallel or serial data

transferred from a microcomputer is used to

generate LCD drive signals for displaying characters.

Incorporating a character ROM which has font

characters configured in the format of 5 x 8 dots and

a character RAM which allows the user to define

characters, the LH1594/LH1595 provide a higher

freedom of display. Since the LH1594/LH1595 have

80 output pins for a segment drive circuit and 17

output pins for a common drive circuit in a single

chip, a display system for 16 characters x 2 lines

can be implemented easily. The LH1594/LH1595

enable an LCD system for battery-operated, hand-

carrying information equipment by securing lower

power consumption and wider operating voltage

range.

FEATURES

• Built-in CGROM : 240 characters

• Built-in CGRAM : 8 characters

• Built-in SEGRAM : 80 segments

• Built-in display data RAM : 32 characters

• Format of font character : 5 x 8 dots including 1

• General 8-bit MPU interface : Possible to directly

• Possible to make serial interface

• Ratio of display duty cycle :

LH1594/LH1595

In the absence of confirmation by device specification sheets, SHARP takes no responsibility for any defects that may occur in equipment using any SHARP devices shown in

catalogs, data books, etc. Contact SHARP in order to obtain the latest device specification sheets before using any SHARP device.

dot which also serves to display a cursor

connect 80-family or 68-family MPU to bus line

1/8, 1/9, 1/16 or 1/17 (selectable by command)

C BUS

connected

format is for LH1594)

(5 x 8 x 240 = 9 600 bits)

(5 x 8 x 8 = 320 bits)

(16 x 7 = 112 bits)

the

(32 x 8 = 256 bits)

bus

line

80-Segment and 17-Common Outputs

LCD Driver IC with A Built-in CGROM

• Abundant command functions

• LCD drive power circuit

• Operating temperature : –30 to +85 ˚C

• Package : 151-pin TCP (Tape Carrier Package)

* Purchase of I

– Display of 2 lines by 16 characters

– Display ON/OFF

– Normal/reverse display control

– Busy flag readout

– Cursor display

– Blinking : per character

– Display double fonts lengthwise

– Power saving mode

– Built-in booster circuit : Two or three times

– Built-in voltage converter : Generates LCD

– Built-in power bias ratio :

– Built-in electronic volume : Controllable in 16

– Supply voltages

of its sublicensed Associated Companies conveys a

license under the Philips I

components in an I

conforms to the I

Philips.

voltage boost is possible

drive voltages (V

on the boosted voltage

1/4 or 1/5 bias (selectable by command)

steps

Logic system : +2.2 to +5.5 V

LCD drive system : +4.0 to +11.0 V

C components of Sharp Corporation, or one

C Standard Specification as defined by

C system, provided that the system

, V

C Patent Rights to use these

, V

LH1594/LH1595

and V

) based

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