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Texas Instruments TI-5322

Date of introduction:  1989 Display technology:  Fluorescent
New price:   Display size:  12
Size:  11.3" x 9.0" x 2.4" Printer technology:  Impact red/black
Weight:  5 pounds 3 ounces Serial No:  102126
Batteries:   Date of manufacture:  
AC-Adapter:  220 V Origin of manufacture:  Japan
Precision:  12 Integrated circuits:  NEC uPD7519G-A05
Memories:  1 + 1     
Program steps:   Courtesy of:  Joerg Woerner

Texas Instruments introduced in 1989 with the TI-5322 and its sibbling TI-5332 two heavy-duty desktop printer / display calculators. Main differences between the two calculators is the 12-digit display. While the TI-5322 sports a traditional design, introduced the TI-5332 a novel, tiltable display for a more convenient reading position in POS applications. The design of both calculators matches perfect with the TI-5315 introduced already in 1988. 

TI-5322_PCB.jpg (373984 Byte)Dismantling the TI-5322 reveals no big surprises, the printed circuit board (PCB) is centered around a NEC uPD7519G 4-bit single-chip microcomputer. We know this device already from the TI-5310 introduced in 1983. The uPD7519G is a member of the uPD7500 series and matches perfect the requirements of a printing desktop calculator:

bullet4k Byte program memory
bullet256 x 4 bit data memory
bulletIntegrated drivers for VF-Displays 
bullet7.63 us instruction cycle time @ 4.19 MHz crystal frequency

TI-5322_Printer.jpg (319365 Byte)The TI-5322 uses a robust EPSON M-260 two-color impact printer mechanism.


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

Joerg Woerner, July 7, 2009. No reprints without written permission.