IZ1242C Datasheet, PDF (1/18 Pages) Integral Corp. – SCIENTIFIC 10 DIGITS LCD CALCULATOR

IZ1242C
SCIENTIFIC 10 DIGITS LCD CALCULATOR
The IZ1242C is the CMOS LSI for 10-digit display and the complete single chip for scientific
calculator with 56 programmed functions.
FUNCTIONS
FEATURES
• Six operations
- four standard functions (+, -, ×, ÷ )
- y^x
- √y
- auto-constant
- parenthesis
- percentage
• Memory calculation
- independent single memory (× → M, RM, M+)
• Four operations complex number calculation
• 1-variable functions
- trigonometric and arctrigonometric function
- hyperbolic and archyperbolic function
- factorial
- reciprocal and square
- square root and cube root
- time conversions
- angular mode conversion
• 2-variable functions
- polar-rectangular coordinate conversion
• Statistics calculations
- number of sample (n)
- average (×)
- total of all data (Σ ×)
- total of square of all data (Σ x²)
- 2 kinds of the standard deviation (S, σ)
• Binary, octal, decimal and hexadecimal
number
calculations
- mutual conversions and calculations of binary,
octal,
decimal, and hexadecimal numbers
• Display conversion
- conversion and setting of floating and
engineering displays
• Display
-10 display digits plus negative code digit
- scientific and engineering displays
- 8 mantissa digits plus 2 exponent digits plus 2
negative code digits
• 14 kinds of special display
M
Memory
GRAD Gradient
-
Minus
( ) Parenthesis
E
Error
BIN ^{Binary mode}
2ndF
HYP
DEG
2nd
Function
Hyperbolic
Degree
OCT
HEX
CPLX
Octal mode
Hexadecimal
mode
Complex number
RAD
Radian
STAT ^mode
Statistic
calculation mode
• The minus sign of the mantissa is floating minus
• The arithmetic key operation has the same
sequence
as the mathematical equation, 6 pending
operations
are allowed and ( ) are up to continuous 15
levels
• Mutual conversion and calculation in arithmetic
among binary, octal, decimal and hexadecimal
numbers
• One independent accumulating memory
• It is possible to convert and fix the display
number
system by the F → E key
• It is possible to specify decimal part digits by the
TAB key
• Direct drive for LCD (1/3 prebias, 1/4 duty)
• Automatic power off (about 7.5 minutes)
• Low power consumption
V_DD = 3.0V single power supply
• Bare chip available
• Direct type
ABSOLUTE MAXIMUM RATINGS (T_a = 25^oC)
Characteristic
Symbol
Terminal Voltage
V_DD
V_IN
Operating Temperature
T_opr
Storage Temperature
T_stg
Value
Unit
- 0.3 ~ + 3.3
V
- 0.3 ~ V_DD + 0.3
V
0 ~ + 40
o_C
- 55 ~ + 125
o_C
* Voltage greater than above may damage the circuit
1