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IZ1225MR Datasheet(PDF) 1 Page - Integral Corp. |
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IZ1225MR Datasheet(HTML) 1 Page - Integral Corp. |
1 / 8 page IZ1225M 1 BASIC FUNCTION 8-DIGITS LCD CALCULATOR WITH TOUCH TONE AND PUNCTUATION FUNCTION The IZ1225M is a single chip CMOS LSI with 8-digit arithmetic operation, single memory, extraction-of-square-root, percentage calculation and auto power off and punctuation and touch tone function, designed for FEM LCD operation with a 1.5V power supply. FUNCTIONS • Four standard functions (+, -, ×, ÷ ) • Auto constant calculations (constant: multiplicand, divisor, addend and subtrahend) • Square and reciprocal calculations • Mark-up and mark-down calculations • Extraction of square root • Percentage calculations • Chain multiplication and division • Power calculations • Rough estimate calculations • Touch tone function • Punctuation comma display • Clear key: ON/C, ON/CE, CE FEATURES • Single chip CMOS construction • Floating decimal point • LCD direct drive • Overflow indication: “E” • Accumulating memory: M+, M-, RM, CM, RM/CM • 48 QFP and bare chip available • Mirror type ABSOLUTE MAXIMUM RATINGS (Ta = 25 oC) Characteristic Symbol Value Unit Note VGG - 0.3 ~ + 3.5 V Terminal Voltage VIN - 0.3 ~ VGG + 0.3 V 1 Supply Voltage VGG 2.5 ~ 3.5 V Operating Temperature T OPR 0 ~ + 50 oC Storage Temperature Tstg - 55 ~ + 125 oC Note: 1. Maximum voltage on any pin with respect to the GND |
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