器件名称: IZ1229M
功能描述: 10-DIGITS CALCULATOR
文件大小: 108.18KB 共6页
简 介:IZ1229M 10-DIGITS CALCULATOR
The IZ1229M is a single chip CMOS LSI with 10-digit arithmetic operation, single memory, extraction-of-square-root, percentage calculation, auto power off and punctuation and touch tone function, designed for FEM LCD operation with a 1.5V power supply.
FUNCTIONS Four standard functions (+, -, × , ÷ ) Square and reciprocal calculations Extraction of square root Auto constant calculations (constant: multiplicand, divisor, addend and subtrahend) Mark-up and mark-down calculations Percentage calculations Chain multiplication and division Power calculations Rough estimate calculations Punctuation comma and touch tone mark display Clear key: ON/C, CE Touch tone function
FEATURES Single chip CMOS construction Floating decimal point LCD direct drive Overflow indication: “E” On chip oscillator components Auto Power off Accumulating memory: M+, M-, MR, MC, MRC Bare chip is available Mirror type
LCD CONNECTION
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IZ1229M
ABSOLUTE MAXIMUM RATINGS ( Ta = 25oC ) Characteristic Terminal Voltage Operating Temperature Storage Temperature Symbol VCC VIN Ta Tstg Value - 0.3 ~ + 2.1 - 0.3 ~ VCC + 0.3 0 ~ + 50 - 55 ~ + 125 Unit V V o C o C
ELECTRICAL CHARACTERISTICS (Ta = 25oC, VCC = 1.5V, unless otherwise specified)
Characteristic Operating Voltage Input Voltage (pins FDISB, EXT) Input Current 1 (pins FDISB, EXT) Input Current 2 (pins K4 ÷ K6) Output Voltage (pins a1÷a11, b1÷b10, c1÷c10, H1÷H3) Display Frequency Touch Tone Output Drive Curr……
