描述 Description

The EMPCD200 is a single-chip LS1 CMOS calculator for 3 sets store memory (14-digits or 16-digits). Besides, the EMPCD200 is an arithmetic four standard types ofgeneral function (+, ?, x, /), TAX function, Euro & 5 sets currency exchange,percentage calculation functions, leading zero and trailing zero suppression, chain calculations, Mark up/down (MU/MD) & Delta percent (Δ%) calculation, Grand Total(GT) calculation, Auto Power OFF available, 14/16-digit selectable LCD display. Dualpower supply operation, wide operating voltage, and lower power consumption makeit suitable for 1.5 solar battery operated calculator.

特性 Features

Number of display:
14 /16 digits of data, (including punctuation in each digit) 1-digit of floating minus sign, memory I (M) & memory II (MII) load symbol, error symbol, 3-digits of commas for thousands, TAX symbol, currency exchange (Local, Euro, C1~C5) symbol, GT and sing symbol, etc. Operation methods:
By algebraic operation.
Basic operations:
Four function, repeat multiplication and division, mixed calculation, square calculation, percentage calculation,percent discount and add-on / discount calculation,memory calculation, delta percent calculation, add-modecalculation, mark-up / down calculation, Grand totalcalculation, constant calculation, TAX calculation, EUROexchange, currency exchange and square rootcalculation.
Decimal point method:
Decimal set lock key controls output format. Fixed decimalsetting (\"0\", \"1\", \"2\", \"3\", \"4\", \"5\", \"6\"), full floating decimal, and ADD mode (selectable with a switch).
Contents of operation:
1. Floating point mode during operation and key entrythat specified only Addition and Subtraction.
2. Specified decimal point mode is valid only foroperation results.
3. Round-off when most significant digits have higherpriority or at auto shift of rough estimation.
Key rollover method:
Two-key rollover
Error detect display:
1. Key entry exceeding the number of display digits isinvalid, but dies not cause an error.
2. If the integer part of an operation result exceeds thenumber of display digits, a rough estimate is displayed.
3. In the overflow condition, all key except \"C\", \"C/CE\",\"CE\", \"Δ\" keys are inoperative.
Protection:
1. In the overflow condition, all key except \"C\", \"C/CE\", \"CE\", \"Δ\" keys are inoperative.
2. Key chatter protection.
3. Auto-clear at power on
??? Auto-clear functions by connecting a capacitor to the RESET pin.
Auto power off function:
5 minutes
Clock source:
Oscillator / clock generator internal to chip.
Others:
1. Keyboard encoding internal to chip.
2. Wide supply voltage range (1.2 to 1.8V).
3. Very low power consumption.
4. Battery / solar power supply.
5. Symbol blinking available.
6 Rate will be kept after AC key pressed.