DATAMATH

DATAMATH CALCULATOR MUSEUM

CASIO fx-300ES

Date of introduction:	2006	Display technology:	LCD dot matrix
New price:		Display size:	3 * 15 characters
Size:	6.3" x 3.1" x 0.45" 160 x 78 x 12 mm³
Weight:	3.5 ounces, 98 grams	Serial No:
Batteries:	Solar cells + LR44	Date of manufacture:	mth 04 year 2007
AC-Adapter:		Origin of manufacture:	China
Precision:	15	Integrated circuits:
Memories:	7
Program steps:		Courtesy of:	Joerg Woerner

Casio introduced with the fx-115ES already in 2005 an advanced scientific calculator with a 2-line Natural Textbook Display showing formulas and results exactly as they appear in the textbook. Texas Instruments followed mid-2007 with the TI-30XS MultiView and Sharp joined the group with its EL-W531 series introduced late-2007.

In June 2008 we know eight Casio calculators sporting the Natural Textbook Display:

Type	Power Supply	Functions	Comments
fx-83ES, fx-83ES, fx-350ES	AAA battery	249
fx-85ES, fx-30ES	Solar + LR44	249
fx-570ES	AAA battery	403	40 constants, 20 conversions, complex numbers, N-base numbers
fx-115ES, fx-991ES	Solar + LR44	403	40 constants, 20 conversions, complex numbers, N-base numbers

In addition to this so called "Math Format" mode the calculator sports a traditional "Linear Format" mode.

Dismantling the Casio fx-300ES reveals a pretty common construction with a single printed circuit board (PCB). The PCB hides the single-chip calculating circuit under a small protection blob of black epoxy and drives the graphing display with a heat sealed fine-pitch connector. The prominent SR380 designation on the main PCB proves that this calculator was manufactured by Kinpo Electronics, Inc., a famous company located in Taiwan and doing calculator production for well established companies like Texas Instruments, Hewlett Packard, Casio, Canon and Citizen.

Please compare the Casio fx-300ES with its competitors Sharp EL-W535 and Texas Instruments TI-30XS MultiView.

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