器件名称: IZ1228M
功能描述: 8-DIGIT CALCULATOR
文件大小: 111KB 共9页
简 介:IZ1228/IZ1228M 8-DIGIT CALCULATOR
The IZ1228/IZ1228M 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 IZ1228M has special keys (C1, C2, SM) for currency exchange calculations and special memory for save currency rate.
FUNCTIONS Four standard functions (+, -, ×, ÷ ) 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 Direct (IZ1228) or Mirror (IZ1228M) LCD Punctuation comma Auto Power off Saving special memory contents when auto power off Accumulating memory: M+, M-, MR, MC, MRC Bare chip is available
ABSOLUTE MAXIMUM RATINGS ( Ta = 25oC ) Characteristic Terminal Voltage Supply Voltage (Battery) Operating Temperature Storage Temperature Symbol VDD VIN VDD Ta Tstg Value - 0.3 ~ + 2.1 - 0.3 ~ VDD + 0.3 1.1 ~ 1.8 0 ~ + 50 - 55 ~ + 125 Unit V V V o C o C
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IZ1228/IZ1228M
ELECTRICAL CHARACTERISTICS (Ta = 25oC, VDD = 1.5V, unless otherwise specified)
Characteristic Input Voltage (Pins K2 ~ K6) Input Current (Pi……
