HCD66724RA03BP 查看數據表（PDF） - Hitachi -> Renesas Electronics

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HCD66724RA03BP

Graphics LCD Controller/Driver with Key Scan Function

Hitachi -> Renesas Electronics 

HD66724/HD66725

(Graphics LCD Controller/Driver

with Key Scan Function)

ADE-207-309(Z)

Rev 1.2

'99.8

Description

The HD66724/HD66725, dot-matrix graphics LCD controller and driver LSI incorporating a key scan

function up to a 4-by-8 key matrix, display characters such as alphanumerics, katakana, hiragana and

symbols as well as graphics such as kanji and pictograms. They can be configured to drive a dot-matrix

liquid crystal display and control key scan functions under the control of the microprocessor connected via

the clock-synchronized serial or 4/8-bit bus. The HD66724 is capable of displaying up to three 12-

character lines, 72-by-24 dot graphics and 144 segments. The HD66725 is capable of displaying up to

three 16-character lines, 96-by-24 dot graphics and 192 segments. Of the 144 (192) segments displayed, 48

(64) segments can be grayscaled. The HD66724/HD66725 have a smooth horizontal/vertical scroll display

and double-height display so that the user can easily see a variety of information within a small LCM.

The HD66724/HD66725 have various functions to reduce the power consumption of an LCD system such

as low-voltage operation of 1.8 V or less, a booster to generate maximum triple LCD drive voltage from the

supplied voltage, and voltage-followers to decrease the direct current flow in the LCD drive bleeder-

resistors. Combining these hardware functions with software functions such as standby and sleep modes

allows fine power control. The HD66724/HD66725 are suitable for any portable battery-driven product

requiring long-term driving capabilities and small physical dimensions such as cellular phones, pagers,

portable audio devices, or electronic wallets.

Features

• Control and drive of a character and graphics LCD with built-in key scan functions

• Three 12- (16-) character lines, 72 (96) -by-24 dot graphics, and 144 (192) segments

• 48 (64) grayscale segments

• Control up to a 4 × 8 (32 key) matrix key scan.

• 3 general ports built-in

• Low-power operation support:

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