器件名称: IZ1239M
功能描述: 8 - DIGITS CURENCY CALCULATOR
文件大小: 79.24KB 共6页
简 介:IZ1239M 8 - DIGITS CURENCY CALCULATOR
The IZ1239M are a single chip CMOS LSI with 8-digit arithmetic operation, single memory, extraction-of-square-root, percentage calculation and auto power off function, designed for FEM LCD operation with a 1.5V power supply. The IZ1239M has special keys (C1, C2, SM, RM) for currency exchange calculations and special memory for save currency rate. The result of currency exchange operations formatted to two decimal always and rounded if it exceeds two decimal. FUNCTIONS Four standard functions (+, -, × , ÷ ) The result of currency exchange operation is rounded to two decimal Auto constant calculations Mark-up and mark-down calculations Percentage calculations Chain multiplication and division Power calculations Rough estimate calculations Clear key: ON/C, CE Currency exchange calculations : Currency 1 → Currency 2 and Currency 2 → Currency 1 FEATURES Single chip CMOS construction Floating decimal point LCD direct drive Special memory for currency rates Overflow indication: “E” On-chip oscillator components Mirror LCD Punctuation comma Auto Power off Saving special memory contents when auto power off Accumulating memory: M+, M-, MR, MC, MRC Currencies C1, C2, SMR, SMW and Rate indication Rounded function (option) Formatting function Bare chip is available
ABSOLUTE MAXIMUM RATINGS ( Ta = 25oC ) Characteristic Terminal Voltage Supply Voltage (Battery) Operating Temperature Storage Temperature Symbol VDD VIN VDD Ta Tst……
