The Toshiba T6963C Dot Matrix LCD Controller, found in a proportion of the cheaper medium size LCD Modules (for example in the Varitronix MGLS-24064 240x64 display.), takes the middle ground in terms of number of features, and complexity. It has none of the screen layering and split screen abilities of the SED1330 for example, but has both text and graphics screens that can be logically OR'ed / AND'ed / XOR'ed together, hardware cursor, and limited manipulation functions.
For applications that don't need the highly complex functions, it does very nicely.
One MAJOR problem with this controller is the poor quality of Toshiba's original data sheet (English Much Broken - Mind you, it's better than my Japanese!) which I hoped to offset somewhat with this page. They have recently produced the data sheet as a .PDF, and have improved it at the same time. (see the links below)
Hantronix' web pages give the pinouts of all their displays.
As Varitronix' web pages are worse than useless for detailed info, listed here are Varitronix T6963C based display modules' pin-outs:-
(Where the pin number of MGLS 24064A and 32064 LCDs differs, they are shown in brackets)
Pin-out numbering should be marked on the module PCB.
TIANMA's TM24064B have the same pinout as a Varitronix' 24064. Note that pin 19 (FS) is pulled up onboard with a 1K resistor. If you want 8 x 8 font, the resistor to pull it down needs to be 100 ohms or less. (5mA current wasted pulling down the 1K, just to pick the font size!).
The Circuit Diagram
Beta of the test S/W (ver 0.1)
My interpretation of the T6963 data sheet - 2nd draft revised 4/98 in Abode Acrobat format.
Note:- People have emailed me to say that my comments on setting up user characters in this document, don't give the correct results. The test software above does not test user characters - the next version, which is written but not tested, will.
The T6963C data sheet in PDF format from Toshiba.
Jeff Sampson's collection of scanned in data sheets inc. the T6963C ( + 8051 code for testing) - useful as Toshiba didn't admit to making the chip until recently.
Hantronix' web pages give app. notes and advance all their displays, much of which is relevant to graphics LCDs in general. Also they give test software for connecting an 87C871 to a T6963C based display
Varitronix' US web pages give a 'hint' of information
The LCD forum - for all LCD questions (if this page has not helped).
SII - LCD
The Principles Behind LCD Techno...
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If you want more information, Mail Me
Last Updated by Steve Lawther on Saturday, 26 February, 2000 at 5:45 PM.