HD66717A03TA0 datasheet(1/90 Pages) HITACHI

Part #	HD66717A03TA0

Description	(Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver)

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Manufacturer	HITACHI [Hitachi Semiconductor]

Direct Link	http://www.renesas.com/eng

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HD66717

(Low-Power Dot-Matrix Liquid Crystal Display

Controller/Driver)

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

2C bus, a clock-synchronized serial, or a 4- or 8-bit microprocessor. A single HD66717

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

• 5 × 8-dot matrix LCD drive

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

• Low-power operation support:

 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

• I2C bus or clock-synchronized serial interface; 4- or 8-bit parallel bus interface

• 60 × 8-bit display data RAM (60 characters max)

• 9,600-bit character generator ROM

 240 characters (5 × 8 dots)

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