DATAMATH  CALCULATOR  MUSEUM

Texas Instruments Computer Fun (Germany)

Date of introduction:  1990 Display technology:  LCD
New price:   Display size:  Graphics
Size:  9.5" x 12.5" x 2.5"    
Weight:  2 pounds 3 ounces Serial No:  7317780
Batteries:  4*AA cells Date of manufacture:  wk 33 year 1992
AC-Adapter:   Origin of manufacture:  USA
Precision:   Integrated circuits:  TSP50C44 (CSM44024),
 HD44102, HD44105
Memories:      
Program steps:   Courtesy of:  Joerg Woerner

Nothing else than the German speaking edition of the Computer Fun introduced two years earlier in the United States.

Dismantling this Computer Fun manufactured in July 1990 by Texas Instruments in the United States for the German speaking market reveals a rather complex printed circuit board (PCB). The design of the Computer Fun is centered around four different Integrated Circuits:

TSP50C44/CSM44024: TSP50C50 VSP (Voice Synthesis Processor) with 8-bit microcontroller and 16k Bytes Mask ROM for both program and voice and 128 Bytes + 16 Nibbles RAM
TSP60C19/CMM19xxx: VSM (Voice Synthesis Memory) with 256k Bits
Hitachi HD44102: Column Driver for monochrome dot matrix liquid crystal display with 4-bit and 8-bit Interface for up to 50 columns
Hitachi HD44105: Common (Row) Driver for monochrome dot matrix liquid crystal display with 4-bit and 8-bit Interface for up to 32 rows

The regional definition of the Computer Fun is accomplished with different Mask Versions for the ROMs of both the VSP and VSM:

American Voice: TSP50C44/CSM44012 and TSP60C19/CMM19006
British Voice: TSP50C44/CSM44017 and TSP60C19/CMM19040
German Voice: TSP50C44/CSM44024 and TSP60C19/CMM19xxx

ComputerFunD_1.jpg (83978 Byte)This Computer Fun got not only other voices, even the keyboard layout changed to the German style.

Don't miss the Computer Fun with a British voice.

If you have additions to the above article please email: joerg@datamath.org.

Joerg Woerner, December 21, 2001. No reprints without written permission.