IZ1229M single chip CMOS with 10-digit arithmetic operation, single me

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IZ1229M single chip CMOS with 10-digit arithmetic operation, single me

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IZ1229M 10-DIGITS CALCULATOR
IZ1229M single chip CMOS with 10-digit arithmetic operation, single memory, extraction-of-square-root, percentage calculation, auto power punctuation touch tone function, designed operation with 1.5V power supply.
FUNCTIONS Four standard functions Square reciprocal calculations Extraction square root Auto constant calculations (constant: multiplicand, divisor, addend subtrahend) Mark-up mark-down calculations Percentage calculations Chain multiplication division Power calculations Rough estimate calculations Punctuation comma touch tone mark display Clear key: ON/C, Touch tone function
FEATURES Single chip CMOS construction Floating decimal point direct drive Overflow indication: chip oscillator components Auto Power Accumulating memory: Bare chip available Mirror type
CONNECTION
IZ1229M
ABSOLUTE MAXIMUM RATINGS 25oC Characteristic Terminal Voltage Operating Temperature Storage Temperature Symbol Tstg Value Unit
ELECTRICAL CHARACTERISTICS 25oC, 1.5V, unless otherwise specified)
Characteristic Operating Voltage Input Voltage (pins FDISB, EXT) Input Current (pins FDISB, EXT) Input Current (pins Output Voltage (pins a1÷a11, b1÷b10, c1÷c10, H1÷H3) Display Frequency Touch Tone Output Drive Current Supply Current
Symbol IIH1 IIL1 IIH2 IIL2 IOFF IDIS
Test Condition
1.70 0.20
Unit
VCC; APODISB FDISB Without load Without load Without load 1.3V, Display =1.0V, APODISB FDISB =0.5V, APODISB FDISB 1.5V Display 1.3V, Ddisplay
2.80 1.30
2.95 1.50
IZ1229M
FUNCTIONAL DESCRIPTION
Decimal point system Complete floating decimal point system. Integral number digits leading zero suppression. Zero shift. Symbols negative number display error display punctuation comma touch tone indicator Error detections System errors occur when: division zero. extraction square root negative number. integral part memory calculation result exceeds digits. Rough estimate calculation error occur when integral part calculation standard functions, percentage, square root, reciprocal power calculations result exceeds digits. Error indication System error indicated 1-digit position sign-digit position. Rough estimate calculation error high-order 10-digit calculation result indicated together with "E". decimal point indicated position corresponding calculation result time 10-10, zero shift performed Error release System error system error release ON/C key. Rough estimate calculation error ON/C release rough estimate-calculation error clear calculation result once. release only rough estimate calculation error ("E" flag). Number entry Numericals entered digits. Numerical entries equal digits more ignored. Memory protection error detection, memory contents present before error detection protected. Memory indication
IZ1229M
memory content zero, indicated sign-digit position. bounce protection Front edge Minimum words Trailing edge Minimum words word 3.3ms when display frequency 100Hz. Auto power Power automatically turns after minutes pass from last pressure. connecting APODISB VCC, auto power function disabled enabled, respectively.
b1a1
b2a2
b3a3
b4a4
b5a5
b6a6
b7a7
b8a8
b9a9
b10a10
Mirror with IZ1229M
TOUCH TONE
When power touch tone function enable beep sound with f=2KHz generated output during 125ms sign displayed LCD. Selection touch tone function toggled touch tone key. CLEAR DESCRIPTION ON/C Power-on function. operations cleared ON/C (except memory contents). edit last operand operator. MARK-UP MARK-DOWN CALCULATION
ENTRY AM/100 DISPLAY AM/100 AM/100 AM/100 AM/100
Note: AMOUNT
C/NO
V5.1
C/NO
APPLICATION CIRCUIT (mirror LCD)
IZ1229M
)PIHC( M9221ZI
IZ1229M
NOTE1: Protection Diode Protection Resistor (0.5 ~1.5K) APODISB STATE AUTO POWER CONDITION ENABLE DISABLE
DIAGRAM
LOCATION
Name FDIS APOD ON/C Description Piezo Output External Clock FOSC Disable Disable input input input Input Power Supply COM1 Display output Display output Display output Display output Display output Display output Display output Display output Display output Display output Display output Display output Display output Display output 1124 -211 -411 -591 -841 -1061 -1161 -1161 -1161 -1161 -1161 -1161 -1161 -1161 -1161 -1161 -1161 -1161 -1181 -1236 -1236 -1236 -1236 -1236 -1236 -1236 -1236 -1236 -1236 -1236 -1076 -916 -746 -461 -276 1034 Name Description Display output Display output Display output Display output Display output Display output Display output Display output Display output Display output Display output Display output Display output Display output Display output Display output Display output COM3 COM2 Ground Capacitor terminal Capacitor terminal Capacitor terminal -981 -816 -646 -361 -196 1149 1169 1169 1169 1169 1169 1169 1169 1169 1169 1169 1244 1244 1244 1244 1244 1244 1244 1244 1244 1244 1244 1244 1224 1074 -306 -611 -866
APO: Output Power
tinU ezis 0472 0952 :ezis pihC MARGAID M9221ZI
)0,0

IZ1229M single chip CMOS with 10-digit arithmetic operation, single me

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