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HD44780UA00FS +BOM

DOT MATRIX LIQUID CRYSTAL DISPLAY CONTROLLER/DRIVER

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HD44780UA00FS General Description

The HD44780U dot-matrix liquid crystal display controller and driver LSI displays alphanumerics, 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.

A single HD44780U can display up to one 8-character line or two 8-character lines.

The HD44780U has pin function compatibility with the HD44780S which allows the user to easily replace an LCD-II with an HD44780U. The HD44780U character generator ROM is extended to generate 208 58 dot character fonts and 32 510 dot character fonts for a total of 240 different character fonts.

The low power supply (2.7V to 5.5V) of the HD44780U is suitable for any portable battery-driven product requiring low power dissipation.

Key Features

58 and 510 dot matrix possible

Low power operation support:

- 2.7 to 5.5V

Wide range of liquid crystal display driver power

- 3.0 to 11V

Liquid crystal drive waveform

- A (One line frequency AC waveform)

Correspond to high speed MPU bus interface

- 2 MHz (when VCC = 5V)

4-bit or 8-bit MPU interface enabled

808-bit display RAM (80 characters max.)

9,920-bit character generator ROM for a total of 240 character fonts

- 208 character fonts (58 dot)

- 32 character fonts (510 dot)

648-bit character generator RAM

- 8 character fonts (58 dot)

- 4 character fonts (510 dot)

16-common40-segment liquid crystal display driver

Programmable duty cycles

- 1/8 for one line of 58 dots with cursor

- 1/11 for one line of 510 dots with cursor

- 1/16 for two lines of 58 dots with 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 HD44780S

Automatic reset circuit that initializes the controller/driver after power on

Internal oscillator with external resistors

Low power consumption

Specifications

ECCN EAR99 Automotive No
Supplier Cage Code C6489 HTSUSA 8542390001
Schedule B 8542390000

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