Product Summary

The HD44780A00 is a dot-matrix liquid crystal display controller and driver. It displays alphanumerics, Japanese kana characters, and symbols. The HD44780A00 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.

Parametrics

HD44780A00 absolute maxing ratings: (1)Power supply voltage (1) VCC–GND: –0.3 to +7.0 V ; (2)Power supply voltage (2) VCC–V5: –0.3 to +13.0 V ; (3)Input voltage Vt: –0.3 to VCC +0.3 V ; (4)Operating temperature Topr: –30 to +75 ℃; (5)Storage temperature Tstg: –55 to +125 ℃.

Features

HD44780A00 features: (1)5×8 and 5×10 dot matrix possible; (2)Low power operation support: 2.7 to 5.5V; (3)Wide range of liquid crystal display driver power: 3.0 to 11V; (4)Liquid crystal drive waveform: A (One line frequency AC waveform); (5)Correspond to high speed MPU bus interface: 2 MHz (when VCC = 5V); (6)4-bit or 8-bit MPU interface enabled; (7)80×8-bit display RAM (80 characters max.); (8)9,920-bit character generator ROM for a total of 240 character fonts: 208 character fonts (5×8 dot); 2 character fonts (5×10 dot).

Diagrams

HD44780A00 block diagram

HD440072
HD440072

Other


Data Sheet

Negotiable 
HD44820
HD44820

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Data Sheet

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HD44795

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Data Sheet

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HD44780U
HD44780U

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Data Sheet

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HD447-GM-358

GHI Electronics

LCD Character Display Modules & Accessories HD44780 CONTROLLER GADGETEER MODULE

Data Sheet

0-1: $2.91
1-5: $2.87
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HD44750

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Data Sheet

Negotiable