General Description
The EMPCD081A is a single-chip LS1 CMOS calculator for 8-digit 1 memory. Besides, the EMPCD081A is an arithmetic four standard types of general function (+, −, ×, ÷), TAX / EURO function, percentage calculation functions, leading zero and trailing zero suppression, chain calculations, MU calculation, Auto Power OFF available. Dual power supply operation, wide operating voltage, and lower power consumption make it suitable for 1.5 solar battery operated calculator.

FEATUREs
■ Display : 8-digit of data, 1-digits of sign, error, memory load symbol.
■ TAX / EURO function available.
■ Algebraic mode.
■ Standard 4 function (addition, subtraction, multiplication, division).
■ Memory calculation.
■ Automatic percentage operation with add-on discount.
■ Constant calculation.
■ Chain calculation.
■ Change sign.
■ Trailing zero suppression.
■ Punction on display, commas for thousands.
■ Memory contents indicator, turned on with nonzero in the memory.
■ Result overflow, indicating during calculation (most function key are locked as it happened).
■ Memory overflow indicating.
■ Complementary output buffer for direct driving of liquid crystal display.
■ Oscillator/clock generator internal to chip.
■ Keyboard encoding internal to chip.
■ Automatic power on clear.
■ Wide supply voltage range (1.2 to 1.8V)
■ Very low power consumption.
■ Floating minus.
■ Two key roll over available.