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DATAMATH CALCULATOR MUSEUM

Texas Instruments TI-7350SV

Date of introduction:	1999	Display technology:	LCD
New price:		Display size:	8
Size:	5.2" x 4.3" x 0.95" 131 x 109 x 24 mm³
Weight:	3.3 ounces, 93 grams	Serial No:
Batteries:	LR54 (30µA)	Date of manufacture:	mth 03 year 2002 (B)
AC-Adapter:		Origin of manufacture:	China (N)
Precision:	8	Integrated circuits:
Memories:	1
Program steps:		Courtesy of:	Joerg Woerner

This TI-7350SV - successor of the TI-7350 - looks at first glance 100% identical with the TI-1795SV introduced in 2000. The only interesting part we found so far, is the backside of the package. The specifications are given in 4 languages: English, French, Spanish, and Portuguese. Rather atypical for Texas Instruments.

Dismantling this TI-7350SV manufactured in March 2002 by Nam Tai Electronics in China reveals a clean design centered around an unknown single-chip calculator circuit mounted in Chip-on-Board (COB) technology on a small double-sided printed circuit board (PCB) and powered by small solar cells and a LR54 (LR1130) backup battery. A larger, single-sided PCB is used for the keyboard and connected with a short flat flexible cable (FFC).

Inspecting the PCBs of the TI-7350SV calculators brought our attention to two small marks reading TI-1795SV VS302-1 resp. TI-1795SV VS307-1 prooviing its true identity. We started compiling a list of the PCB-Marks on calculators manufactured by OEMs for Texas Instruments.

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