Texas Instruments PS-5800 Translator (Version 2)

Date of introduction:  1993 Display technology:  LCD dot matrix
New price:   Display size:  2 lines by 19 char 
Size:  2.8" x 5.2" x 0.45"
 75 x 146 x 14 mm3
Weight:  2.7 ounces, 105 grams Serial No:  0900769
Batteries:  2*CR2025 Date of manufacture:  mth 09 year 1993
AC-Adapter:   Origin of manufacture:  Taiwan (I)
Precision:  10 Integrated circuits:  CPU: Toshiba TMP0230H-5113
 ROM: IEC50387A-01S1 and -01S2
 Display: Toshiba T6A21
Program steps:   Courtesy of:  Joerg Woerner

Texas Instruments introduced a very powerful Translator in a housing similar to the PS-3600 Databank.

Due to limitations of the internal memory two different models were available:

Version 1: French, English, German
Version 2: French, English, Italian

The internal memory stores about 10,000 words, 420 business words and 920 complete sentences in 13 different categories. By simply choosing a word or sentence in one of the three languages the other two languages could be displayed.

Dismantling this PS-5800 Translator (Version 2) manufactured in September 1993 by Inventec Corporation in Taiwan reveals a single printed circuit board (PCB) sporting a very clean design based on just 4 integrated circuits (ICs):

Toshiba TMP0230H-5113: Application Specific CPU
IEC50387A-01S1 and IEC50387A-01S2: 256 kByte ROM
Toshiba T6A21: Single-chip 66 segments display driver

The picture on the right gives an enlarged view of the Toshiba TMP0230H-5513 Application Specific CPU. The identifier -5513 seems to indicate the Software Version of the integrated ROM.

This PS-5800 makes use of 2 Mask-ROMs labeled IEC50387A-01S1 and IEC50387A-01S2.

The picture on the right gives a close-up view of the Toshiba T6A21 single chip display driver, supporting a maximum number of 66 segments. The layout of the PCB shows a joint effort of the TMP0230H and T6A21 to manage the 95 columns and 14 rows of the alphanumeric LC Display plus the various indicators.

The Translator traces back to the PS-5600 and the smaller sibling PS-5400.

horizontal rule

If you have additions to the above article please email:

Joerg Woerner, July 22, 2002. No reprints without written permission.