器件名称: IZ1225MR
功能描述: BASIC FUNCTION 8-DIGITS LCD CALCULATOR WITH TOUCH TONE AND PUNCTUATION FUNCTION
文件大小: 118.94KB 共8页
简 介:IZ1225M 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 ABSOLUTE MAXIMUM RATINGS (Ta = 25oC)
Characteristic
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
Symbol VGG VIN
Value - 0.3 ~ + 3.5 - 0.3 ~ VGG + 0.3 2.5 ~ 3.5 0 ~ + 50 - 55 ~ + 125
Unit V V V
o o
Note 1
Terminal Voltage Supply Voltage Operating Temperature Storage Temperature
VGG TOPR Tstg
C C
Note: 1. Maximum voltage on any pin with respect to the GND
1
IZ1225M
ELECTRICAL CHARACTERISTICS (Ta = 25oC, VGG = 3.0V, unless otherwise specified)
Characteristic Input Voltage 1 (K2 ~ K6, TI, S2) Input Voltage 2 (S1) Symbol VIH1 VIL1 VIH2 VIL2 IIH1 IIL1 IIH2 IIL2 IIH3 IIL3 IIH……
