TC83230-0015

2003-03-04

1

TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic

TC83230-0015

TC83230-0015: Single-Chip CMOS LSI for Calculators with Printers

(applicable printer heads: M31/M31A manufactured by EPSON)

The TC83230-0015 LSI is a single-chip CMOS LSI for use in

calculators with printers.

It integrates I/O logic circuits necessary to configure a

calculator with 10- or 12-digit display, two-memory function,

two-tax function, serial printer used to print calculation results,

oscillator, and LCD drivers.

Features

Operational Features

· Print: 10 or 12 digits of data. (including decimal point.)

1 digit of floating minus sign, 1 digit of operational

symbol.

1-color printing (black).

· Display: 10 or 12 digits of data. (including punctuation in each digit.)

1 digit of floating minus sign, memory load, error symbol, grand total memory load, 3 digits of

commas.

· Decimal output: Decimal set lock key controls output format. Fixed decimal setting (“0”, “1”, “2”, “3”, “4”,

“6”), full floating decimal, ADD mode and ADD2 mode.

· Key-input buffer: 12 words

· Operation methods: Addition and subtraction: By ARITHMETIC operation

Multiplication and division: By algebraic operation

· Function: Four function, repeat multiplication and division, mixed calculation, percentage calculation,

percent discount and add-on calculation, memory calculation, delta percent calculation, add-mode

calculation, mark-up/down calculation, total calculation, constant calculation, tax calculation

Two-key rollover.

· Leading zero suppression

Protection

(1)

In the overflow condition, all key except “C”, “C/CE”, “CE”, “Feed”, “→” key are inoperative.

(2)

Key chatter protection.

Auto-Clear at Power On

Auto-clear functions by connecting a capacitor to the RESET pin.

Weight: 1.52 g (typ.)