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DATAMATH CALCULATOR MUSEUM |
Texas Instruments CC 40 Compact Computer
| Date of introduction: | March, 1983 | Display technology: | LCD dot matrix |
| New price: | Display size: | 31 (10 + 3) | |
| Size: | 5.7" x 9.3" x 1.0" | ||
| Weight: | 1 pound 2 ounces | Serial No: | 4727751 |
| Batteries: | 4*AA | Date of manufacture: | wk 25 year 1983 |
| AC-Adapter: | AC9201, AC9201/E | Origin of manufacture: | USA (ATA) |
| Precision: | 13 | Integrated circuits: | CPU: TMC70C20 ASIC: AMI 1041036 ROM: HN61256 RAM: 3*HM6116LP |
| Memories: | 18kB RAM, 34kB ROM | ||
| Program steps: | Courtesy of: | Anders Persson |
With
the CC 40 Texas Instruments introduced in the year 1983 a powerful and yet
portable computer. Within 3 years the CC 40 was replaced with the TI-74
BASICALC.
The CC 40 uses the 8-bit TMC70C20 microcontroller, the second design of TI after the successful TMS1000 series found in most calculators. The internal ROM of the TMC70C20 is expanded with additional 32k for the BASIC interpreter. The total amount of RAM could vary between the basic 6k or a maximum of 18k.
The pictured CC 40 sports with the TMX70C20 a very
early prototyp of the final microcontroller.

The CC 40 uses the HEX-BUS for
expansion, different products like printers, plotters and even a serial
interface were available:
Type |
Function |
Value |
| SS-1000 | Memory Expansion | 16k RAM |
| SS-2000 | Memory Expansion with Li-Backup Battery | 8k RAM |
| HX-1000 | Plotter 4 colours | |
| HX-1010 | Printer (Thermal ribbon) | |
| HX-3000 | RS-232 Interface | |
| HX-3100 | Modem | |
| HX-3200 | Centronics Printer Interface | |
| SS-1001 | Pascal module | |
| SS-3004 | Memo Processor module | |
| SS-3006 | Finance module | |
| SS-3007 | Electrical Engineering module | |
| SS-3008 | Statistics module | |
| SS-3009 | Mathematics module | |
| SS-3024 | Games module |
A
detailed picture of the internal printed circuit board (PCB) could be found here.
Compare it with the PCB of the later TI-74.
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If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, December 5, 2001. No reprints without written permission.