IZ12291M Datasheet, PDF (1/5 Pages) Integral Corp. – 10-DIGITS CALCULATOR

IZ12291M
10-DIGITS CALCULATOR
The IZ12291M is a single chip CMOS LSI with 10-digit arithmetic operation, single
memory, extraction-of-square-root, percentage calculation, auto power off and punctuation ,
designed for FEM LCD operation with a 1.5V power supply.
FUNCTIONS
• Four standard functions (+, -, ×, ÷ )
• Square and reciprocal calculations
• Extraction of square root
• Auto constant calculations (constant: multiplicand,
divisor,
addend and subtrahend)
• Mark-up and mark-down calculations
• Percentage calculations
• Chain multiplication and division
• Power calculations
• Rough estimate calculations
• Punctuation comma and touch tone mark display
• Clear key: ON/C, CE
LCD CONNECTION
FEATURES
• Single chip CMOS construction
• Floating decimal point
• LCD direct drive
• Overflow indication: “E”
• On chip oscillator components
• Auto Power off
• Accumulating memory: M+, M-, MR, MC,
MRC
• Bare chip is available
Mirror type
H1 a1 b1 c1 a2 b2 c2 a3 b3 c3 a4 b4 c4 a5 b5 c5 a6 b6 c6 a7 b7 c7 a8 b8 c8 a9 b9 c9 a10 b10 c10 a11 H3 H2
ABSOLUTE MAXIMUM RATINGS ( T_a = 25^oC )
Characteristic
Symbol
Value
Unit
Terminal Voltage
Operating Temperature
Storage Temperature
V_CC
- 0.3 ~ + 2.1
V
V_IN
- 0.3 ~ V_CC + 0.3
V
T_a
0 ~ + 50
o_C
T_stg
- 55 ~ + 125
o_C
ELECTRICAL CHARACTERISTICS (T_a = 25^oC, V_CC = 1.5V, unless otherwise specified)
Characteristic Symbol
Test Condition
Min
Typ Max Unit
Operating
Voltage
Input Voltage
(pins FDISB,
EXT)
Input Current 1
(pins FDISB,
EXT)
Input Current 2
V_OP
1.1
1.5 1.8
V
V_IH
V_CC - 0.4
V
V_IL
0.4
I_IH1
V_IN = V_CC
1
µA
I_IL1
V_IN = 0V
1.5
2.5
3
I_IH2
V_IN = V_CC; APODISB =
0V
1
µA
1