TC83230-0012

The TC83230-0012 is a kind of single-chip CMOS LSI for use in calculators with printers. TC83230-0012 integrates I/O logic cirucits necessary to configure a calculator with 10- and 12-digit display, two-memory function, parallel printer used to print calculation results, oscillator and LCD drivers.

There are some operational features of TC83230-0012: (1)print: 16 digit of data (including decimal point), 2 digits of minus sign, operational symbol, 2-color printing; (2)display: 10 and 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; (3)key-input buffer: 12 words; (4)operation methods; addition and subtraction: by ARITHMETIC operation; multiplication and division: by algebraic operation; (5)leading zero suppression; (6)decimal output: decimal set lock key controls output format. fixed decimal setting("0", "1", "2", "3", "4", "6"), full floating decimal and ADD mode.

The following is about the maximum ratings (VSS=0 V) of TC83230-0012: (1)supply voltage, VDD: -0.3 to 6 V; (2)supply voltage (LCD drive), VLC: -0.3 to VDD+0.3 V; (3)input voltage, VIN: -0.3 to VDD+0.3 V; (4)output voltage, VOUT: -0.3 to VDD+0.3 V; (5)output current, IOUT: 3.2 mA; (6)power dissipation, PD: 600 mW; (7)soldering temperature, Tsld: 260 (10s); (8)storage temperature, Tstg: -55 to 125; (9)operating temperature, Topr: 0 to 40.

The last one is about the recommended operating conditions (VSS=0 V, Topr=0 to 40) of TC83230-0012: (1)operating temperature, Topr: 0 to 40; (2)supply voltage, VDD: 4.5 V min and 5.5 V max at NORMAL, SLOW pins; 2.0 V min and 5.5 V max at HOLD pin; (5)input high voltage (except Schmitt circuit input), VIH1: VDD*0.7 V min and VDD V max at VDD4.5 V; (6)input high voltage (Schmitt circuit input), VIH2: VDD*0.75 V min and VDD V max at VDD4.5 V; (7)input high voltage , VIH3: VDD*0.9 V min and VDD V max at VDD<4.5 V.