PC0801ARS-F datasheet(24/65 Pages) POWERTIP

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Sitronix

ST7066U

Dot Matrix LCD Controller/Driver

V2.0

2001/03/01

1/42

Features

#" 5 x 8 and 5 x 11 dot matrix possible

#" Low power operation support:

#" -- 2.7 to 5.5V

#" Wide range of LCD driver power

-- 3.0 to 10V

#" Correspond to high speed MPU bus

interface

-- 2 MHz (when VCC = 5V)

#" 4-bit or 8-bit MPU interface enabled

#" 80 x 8-bit display RAM (80 characters max.)

#" 13,200-bit character generator ROM for a

total of 240 character fonts(5 x 8 dot or 5 x 11

dot)

#" 64 x 8-bit character generator RAM

-- 8 character fonts (5 x 8 dot)

-- 4 character fonts (5 x 11 dot)

#" 16-common x 40-segment liquid crystal

display driver

#" Programmable duty cycles

-- 1/8 for one line of 5 x 8 dots with cursor

-- 1/11 for one line of 5 x 11 dots & cursor

-- 1/16 for two lines of 5 x 8 dots & cursor

#" Wide range of instruction functions:

Display clear, cursor home, display on/off,

cursor on/off, display character blink, cursor

shift, display shift

#" Pin function compatibility with HD44780,

KS0066 and SED1278

#" Automatic reset circuit that initializes the

controller/driver after power on

#" Internal oscillator with external resistors

#" Low power consumption

#" QFP80 and Bare Chip available

Description

The ST7066U dot-matrix liquid crystal display

controller and driver LSI displays alphanumeric,

Japanese kana characters, and symbols. It can be

configured to drive a dot-matrix liquid crystal display

under the control of a 4- or 8-bit microprocessor.

Since all the functions such as display RAM,

character generator, and liquid crystal driver, required

for driving a dot-matrix liquid crystal display are

internally provided on one chip, a minimal system can

be interfaced with this controller/driver.

The ST7066U has pin function compatibility with the

HD44780, KS0066 and SED1278 that allows the user

to easily replace it with an ST7066U. The ST7066U

character generator ROM is extended to generate

240 5x8(5x11) dot character fonts for a total of 240

different character fonts. The low power supply (2.7V

to 5.5V) of the ST7066U is suitable for any portable

battery-driven product requiring low power

dissipation.

The ST7066U LCD driver consists of 16 common

signal drivers and 40 segment signal drivers which

can extend display size by cascading segment driver

ST7065 or ST7063. The maximum display size can

be either 80 characters in 1-line display or 40

characters in 2-line display. A single ST7066U can

display up to one 8-character line or two 8-character

lines.

Product Name

Support Character

ST7066U-0A

English / Japan

ST7066U-0B

English / European

ST7066U-0E

English / European

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