hd66717 Renesas Electronics Corporation., hd66717 Datasheet

Manufacturer Part Number

hd66717

Description

Low-power Dot-matrix Liquid Crystal Display Controller/driver -

Manufacturer

Renesas Electronics Corporation.

Datasheet

1.HD66717.pdf (90 pages)

Description

The HD66717 dot-matrix liquid crystal display controller and driver LSI displays alphanumerics,

katakana, hiragana, and symbols. It can be configured to drive a dot-matrix liquid crystal display under

the control of an I

is capable of displaying a maximum of four 12-character lines, 40 segments, and 10 annunciators. The

HD66717 incorporates all the functions required for driving a dot-matrix liquid crystal display such as

display RAM, character generator, and liquid crystal drivers, and a booster for LCD power supply.

The HD66717 provides various functions to reduce the power consumption of an LCD system such as

low-voltage operation of 2.4V or less, a booster for generating a maximum of triple LCD drive voltage

from the supplied voltage, and voltage-followers for decreasing the direct current flow in the LCD drive

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

modes allows a fine power control. The HD66717, with the above functions, is suitable for any portable

battery-driven product requiring long-term driving capabilities and small size.

Features

452

Four 12-character lines, 40 segments, and 10 annunciators

Low-power operation support:

9,600-bit character generator ROM

C bus or clock-synchronized serial interface; 4- or 8-bit parallel bus interface

2.4 to 5.5V (low voltage)

Double or triple booster for liquid crystal drive voltage

Electron volume function and voltage-followers for decreasing the direct current flow in the LCD

drive bleeder-resistors

Standby mode and sleep mode

Displays up to 10 static annunciators

240 characters (5

8-dot matrix LCD drive

8-bit display data RAM (60 characters max)

(Low-Power Dot-Matrix Liquid Crystal Display

C bus, a clock-synchronized serial, or a 4- or 8-bit microprocessor. A single HD66717

8 dots)

Controller/Driver)

HD66717