Download the Hitachi HD LCD Controller Datasheet and browse our LCDs that use this controller. Version HDU (LCD-II) (Dot Matrix Liquid. Matrix Multimedia LCD Display LCD Display datasheet . Module uses a Samsung KSU controller, which is similar to the Hitachi HD controller. Advances in the features, miniaturization, and cost of LCD (Liquid Crystal Display ) Nearly every pixel-based alphanumeric LCD module made today uses the Hitachi HD LCD Table 1: Character LCD Pinout.

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The four most significant bits must be written first, followed by the four least significant bits An Introduction to Software and Hardware Interfacing 2nd ed.

Hitachi HD LCD controller – Wikipedia

Views Read Edit View history. This page was last edited on 17 Septemberat Non-LED backlights often require higher voltages. A limited number of custom characters can be programmed into the device in the form of a bitmap using special commands. The most commonly manufactured datahseet configuration is 40×4. Character LCDs use a 16 contact interface, commonly using pins or card edge connections on 0. In other projects Wikimedia Commons.


Download the Hitachi HD LCD Controller Datasheet Version

Also returns display being shifted to cld original position. Retrieved from ” https: The HD instruction set is shown below: Returns cursor to home position. There are two primary considerations. Hitachi Liquid crystal displays Display devices. Sanchez, Julio; Canton, Maria P.

Second, the LCD may initially be in one of three states:. Two versions of the ROM have been developed: DDRAM content remains unchanged.

Compatible LCD screens are manufactured in several standard configurations. Using an extension driver, the device can display up to 80 characters. These characters have to be written to the device each time it is switched on, as they are stored in volatile memory. The nominal operating voltage for LED backlights is 5V at full brightness, with dimming at lower voltages dependent on the details such as LED color. First, with D3-D0 unconnected, these lines will always appear low 0b to the HD when it is in 8-bit mode.

All articles with unsourced statements Articles with unsourced statements from June Commons category link is on Wikidata Commons category link is on Wikidata using P By using this site, you agree to the Terms of Use and Privacy Policy. Once in 4-bit mode, character and control data are transferred as pairs of 4-bit “nibbles” on the upper data pins, D7-D4.


From Wikipedia, the free encyclopedia. The Hitachi HD Datashet controller is limited to monochrome text displays and is often used in copiersfax machineslaser printersindustrial test equipment, networking equipment, such as routers and storage devices.

State3 may occur, for example, if a prior control was aborted after sending only the first 4 bits of a command while the LCD was in 4-bit mode.

More recent compatible chips are available with higher resolution, matched to displays with more pixels. Larger custom sizes are made with 32, 40 and 80 characters and with 1, 2, 4 or 8 lines. Those without backlights may have only 14 pins, omitting the two pins powering the light.

Selecting 4-bit or ratasheet mode requires careful selection of commands.