DATAMATH CALCULATOR MUSEUM
Texas Instruments TI-5225
|Date of introduction:||1977||Display technology:||Fluorescent|
|New price:||Display size:||12|
|Size:||12.0" x 12.3" x 3.3"||Printer technology:||Thermal|
|Weight:||6 pounds 2 ounces||Serial No:||0207647|
|Batteries:||Date of manufacture:||year 1977|
|AC-Adapter:||120 V or 220 V||Origin of manufacture:||USA|
|Precision:||12||Integrated circuits:||TMS1312, TMS1372 (ZA0396), 3*SN96912|
|Memories:||1 + 1|
|Program steps:||Courtesy of:||Joerg Woerner|
This huge desktop printing calculator is a sibbling of the neat TI-5220 based one the earlier TI-5040.
the TI-5225 reveals some known components and a typical Texas Instruments
construction. The keyboard module is similiar to the TI-3500
introduced already in 1972 and the printer is borrowed from the PC-100
printing cradle sold together with the SR-52.
The printed circuit board (PCB) makes use of two enhanced devices of the famous TMS1000 Microcomputer family. We know similiar chips already from the related TI-5220, a sibbling of the TI-5040. PC-100 printing cradle sold together with the SR-52 and the TMC0261 of the TI-5040.
An enhanced version of the TI-5225 was introduced with the odd TI-5230.
The thermal paper used with this printer (TP-30250 1-1/2" wide and 14 Feet length) was discontinued long time ago. In 2008 Appleton (Appleton, WI) manufactured with the Alpha 700-2.4 paper still a compatible paper.
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© Joerg Woerner, November 17, 2003. No reprints without written permission.