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'[PICLIST] [EE] lcd module with three HD44100 chips'
2001\01\22@160823 by Heather Tran

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Hi everyone,
I'm looking for any info on a lcd module. The module has 10 pins, and on the
back there are three HD44100 chips.  Any pointer for pinouts/datasheet is
appreciated.
Tia.
HT
_________________________________________________________________
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2001\01\22@183154 by Richard Sloan

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10 pins is odd, normally you find 14 or 16, unless this is one of those
LCD's you need to scan the bitmaps into, similar to a vertical, horizontal,
clk and data signal.

{Original Message removed}

2001\01\22@231615 by Jinx

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> Hi everyone,
> I'm looking for any info on a lcd module. The module has 10 pins,
> and on the back there are three HD44100 chips.  Any pointer for
> pinouts/datasheet is appreciated.
> Tia.
> HT

This is something I'll be looking at shortly. I've several large
screens with just 44100's on them. As far as I can tell they are just
drivers and need an interace IC (which is what I'll have to buy and
make a small PCB for) such as a 44780. This is part of the
description in the Hitachi manual -

"The HD44100H has two sets of 20-bit bidirectional shift registers,
20 data latch flipflops and 20 LCD driver circuits. It receives serial
display data from a display control LSI, converts it to into parallel
data and supplies LCD waveforms to the liquid crystal.

The HD44100H is a highly general LCD driver which can drive a
static-drive liquid crystal and a dynamic-drive liquid crystal, and
can be applied as a common driver or segment driver.

Capable of interfacing to LCD controllers : HD43160H, LCTC
(HD61830), LCDII (HD44780), LCDIII (HD44790)....."

etc etc

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2001\01\23@054638 by mike

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On Mon, 22 Jan 2001 21:09:19 -0000, you wrote:

>Hi everyone,
>I'm looking for any info on a lcd module. The module has 10 pins, and on the
>back there are three HD44100 chips.  Any pointer for pinouts/datasheet is
>appreciated.
>Tia.
>HT
>_________________________________________________________________
>Get your FREE download of MSN Explorer at http://explorer.msn.com
This has drivers only, and needs an external controller (e.g. HD44780)
to generate the LCD timing signals and send it the display bitmap
data.
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2001\01\23@175832 by Peter L. Peres

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On the same topic:

I have a one-off ancient 80C31 based PDA with a small dot matrix display,
and I'd like to use it for something else. I was unable to locate a
datasheet for the display, so I post the markings on it, in the hope, that
someone will point me in the right direction wrt. programming:

Metal bezel B/W reflective (black on white), abt. 64 x 28 x 8 mm
connections are a single short flatcable out of the narrower edge, 18
wires, 1.27mm pitch.

Markings on bottom are:

leaflet glued on back PCB (paper) with:

12232-
01SRB
92.47

printed on PCB (mask):

P56-1

DATA VISION
122*32

If anyone has seen or heard of this display and has controller data (i.e.
which controller and what pinout, like 61xx SEDxx etc) please advise.

thanks,

Peter

PS: There are two 'epoxy blob' chips on the bottom of the PCB so I can't
tell the controller type.

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