T7942S

The T7942S is a 1 chip microcomputer for 8-digits+1-digit electronic scientific caluculation.T7950S is the complete sigle chip COMS LSI electronic calculator with 10 digit,129 function,max. 4 formual-128 steps program capacity,3 expression and hexadecimal,octal and binary,1 variable  and 2 variable statistic calculation,and fractional number calculation,physical constants and logic operation with the following features.

Features of the T7942S are:(1)display 12 display digits plus 2 digits right margin;(2)20 kinds of special display;(3)the minus sign of the mantissa is floating minus;(4)the arithmetic key operation in clouding Y or XY has same sequence as mathematical equation 6 pending operations are allowed and are up to continuous 15 levels;(5)fractional number calculation.

The absolute maximum ratings of theT7942S can be summarized as:(1):the item is supply voltage,the symbol is VDD,the rating is +0.3 to -3.5,the unit is V;(2):the item is input voltage,the symbol is VIN,the rating is +0.3 to VDD-0.3,the unit is V;(3):the item is operating temperature,the symbol is Topr,the rating is 0 to 40,the unit is ;(4):the item is storage temperature,the symbol is Tstg,the rating is -55 to 125,the unit is .