DESCRIPTION

The SC3423 is a single-chip LSI CMOS calculator with 8-digit four function arithmetic operations, single memory, extraction of square root and percentage calculation functions, leading zero and trailing zero suppression, chain calculations and internal debouncing and encoding of keyboard inputs. It is designed for LCD operation with 3.0V power supply (either from solar cell or battery), auto-power off, low power dissipation and single power supply making the SC3423 ideal for hand held calculators with low system cost.

FEATURES

* Number of digits - 8 digits (rough estimated calculation is possible).

* Calculations:

- Standard four functions (+ , - , x , +).

- Chain multiplication and division.

- Auto-constant calculation (constant multiplicand, divisor, addend and subtrahend).

- Square and reciprocal calculations.

- Extraction of square root.

- Percentage calculations.

- Power calculations.

- Rough estimate calculations.

- Memory calculations.

* Decimal point system-complete floating decimal point system.

* Negative number indication: number + minus (-) sign.

* Display format: 8 digits & sign (-, E & M) leading zero suppression zero shift.

* Touch tone function and display.

* Punctuation comma display.

* Auto power off ability.