TC83220-0009

Print: 12/14 digits of data. (including decimal point and minus signs.) 2 digits of operational symbol. 3 digits of commas.
Display: 10/12 digits of data. (including punctuation in each digit.) 1 digit of floating minus sign, memory loaderror symbol. 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, and ADD mode.
Key input buffer: 8 stages
 Function: 4 basic arithmetic function (+, −, *, ÷).
           Repeat addition and subtraction.
           Automatic constants in multiplication, division, percent calculation, calculations.
           Automatic percent add-on and percent discount calculations.
           Memory calculation.
           Automatic accumulating calculation.
           Gross margin profit calculation.
           Delta percent calculation.
           Two-key rollover.
Item counter: 0~999 count up or −999~0~999 count up/down by depressing of key.
Punctuation: Commas for thousands on display.
Kinds of touch key:Weight: 4.12 g (typ.)

The TOSHIBA printing/display calculator circuit TC83220-0009 is 10/12-digit calculator on a single-chip CMOS LSI.

TC83220-0009 can drive the printing machine (M-42TV/42V; EPSON) with magnet driver circuit, and can drive the fluorescent display tube with DC-DC converter. It contains a 4 K-word ROM, a 256 × 4-bit RAM.