SILAN SC3442

SC3442
SCIENTIFIC 10-DIGITS CALCULATOR CIRCUIT
DESCRIPTION
The SC3442 is the CMOS LSI for a 10-digits display and the
complete single chip for scientific calculator with 56 programmed
functions.
FEATURES
* Display
-- 10 display digits plus negative code digits.
-- Scientific and engineering display.
-- 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
2nd Function
OCT
Octal mode
HYP
Hyperbolic
HEX
DEG
Degree
CMX
Complex number mode
RAD
Radian
STAT
Statistic calculation mode
)
ORDERING INFORMATION
Hexadecimal mode
* The minus sign of the mantissa is floating minus.
* It is possible to specify decimal part
digits by the TAB key.
* The arithmatic key operation has the same sequence as the
mathematical equation, 6 pending operations are allowed and ( )
are up to continuous 15 levels.
* Direct drive for LCD (1/3 prebias, 1/4
duty)
* Automatic power off (about 7.5
* Mutual conversion and calculation in arithmetic among binary,
octal, decimal, and hexadecimal numbers.
minutes)
* Low power consumption
* One independent accumulating memory.
VDD=3.0V single power supply.
* It is possible to convert and fix the display number system by the
F→E key.
ABCOLUTE MAXIMUM RATINGS
Characteristics
Symbol
Value
Unit
VDD
-0.3 ~ +5.0
V
VIN
-0.3 ~ VDD+0.3
V
Operating Temperature
Topr
0 ~+40
°C
Storage Temperature
Tstg
-55 ~ +125
°C
Terminal Voltage
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SC3442
ELECTRICAL CHARACTERISTICS (VDD=+3.0V±0.2V, VSS=0V, Tamb=25~70°C)
Characteristics
Operating Voltage
Supply Current
Osc Frequency
Frame Frequency
Symbol
Condition
Min.
Typ.
Max.
Unit
2.5
3
3.4
V
VDD=3V, Stand by
20
35
µA
Iopr
VDD=3V, Operation
70
120
µA
Ioff
VDD=3V, Off
1
3
µA
Fdis
VDD=3V, Stand by
Fopr
VDD=3V, Operation
Ff
VDD=3V, Stand by
110
180
300
430
VDD
--
Idis
Auto Power Off
Iapo
VDD=3V
High Input Voltage (KI8~KI1)
VIH
--
Low Output Voltage (KI8~KI1)
VIL
High Output Voltage (KI8, KI4, KI2)
30
45
kHz
200
280
kHz
Hz
600
Sec
VDD-0.5
VDD
V
--
VSS
VSS+0.5
V
VOH
--
VDD-0.2
VDD
VDD
V
Low Output Voltage (KI1)
VOL
--
VSS
VSS
VSS+0.2
V
Key Pull Down Resistance (KI1)
Fpd
Vout=0V
30
50
70
kΩ
Key Pull Up Resistance(KI8, KI4, KI2)
Rpu
Vout=VDD
High Output Voltage (LCD, COM)
VOH
--
“M”Output Voltage (LCD, COM)
VOM
--
“M”Output Voltage (LCD, COM)
VOM
--
Low Output Voltage (LCD, COM)
VOL
--
30
50
70
kΩ
VDD-0.2
VDD
VDD
V
2/3 VDD
-0.2
1/3 VDD
-0.2
VSS
2/3 VDD
1/3 VDD
VSS
2/3 VDD
+0.2
1/3 VDD
+0.2
VSS+0.2
V
V
V
PAD ASSIGNMENT
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SC3442
PIN DESCRIPTION
Pin No.
Signal
1
a9
Description
Pin No.
Signal
Description
LCD
21
COM4
Common Signal 4
2
b9
LCD
22
a0(KO)
LCD (Key Output)
3
a10
LCD
23
b0(KO)
LCD (Key Output)
4
b10
LCD
24
a1(KO)
LCD (Key Output)
5
a11
LCD
25
b1(KO)
LCD (Key Output)
6
b11
LCD
26
a2(KO)
LCD (Key Output)
7
a12
No Connection
27
b2(KO)
LCD (Key Output)
8
b12
No Connection
28
a3(KO)
LCD (Key Output)
9
a13
LCD
29
b3(KO)
LCD (Key Output)
10
b13
LCD
30
a4(KO)
LCD (Key Output)
11
COM3
Common Signal 3
31
b4(KO)
LCD (Key Output)
12
COM2
Common 2
32
a5(KO)
LCD (Key Output)
13
KI4
Key Input 4
33
b5(KO)
LCD (Key Output)
14
KI8
Key Input 8
34
a6(KO)
LCD (Key Output)
15
GND
Ground
35
b6(KO)
LCD (Key Output)
16
VDD
VDD (+3V)
36
a7
LCD
17
DEN
Dump Enable
37
b7
LCD
18
KI1
Key Input 1
38
a8
LCD
19
KI2
Key Input 2
39
b8
LCD
20
COM1
Common Signal 1
KEY CONNECTIONS
KI8
14
1st F
29
0
30
=
31
32
33
HEX
STAT
1st F
%
M
RM
34
M+
35
--
36
3
37
HEX
∑x
n
∑ x2
X
δ
s
CD
DATA
HEX
RND
E
BIN
b
OCT
x2
9
tan
7
D
ON/C
STAT
21or44
TAB
xy
1/x
rθ
tan-1
x
y
EXP
π
hyp
archyp
B
A
C
cos
cos-1
log
10x
F
in
ex
E
sin
sin -1
DRG
DRG
= Statistic Mode Keys
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HEX
n!
3
2
yx
Note:
F
a
8
DMS
y
6
5
DEG
CE
x
X
4
+/-
2nd F
CPLX
1
42
DEC
(
39
41
1st F
KI1
25
OFF
+
38
40
2nd F
KI2
26
2nd F
)
x
2nd F
KI4
13
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SC3442
BASIC SPECIFICATIONS
1. NUMBER OF DISPLAY DIGITS
• 10-digit display and 14 kinds of special displays
• Engineering display
• Max mantissa 8 digits plus exponent 2 digits plus each negative code digit
• Normal display
Max. 10 mantissa digits plus 1 negative code 6 digit
2. CLASSIFICATION OF OPERATION MODE
The following 6 types of operation mode are set by the 2ndF key and below keys:
2ndF STAT: Statistic calculation modes are set
2ndF CPLX: Complex number calculation mode set
2ndF - BIN: Binary mode set
2ndF - OCT: Octal mode set
2ndF - HEX: Hexadecimal mode set
2ndF - DEC: Decimal mode set
3. KINDS OF KEYS AND CLASSIFICATION OF THE MULTI-FUNCTIONS FOR ALL 42 TOUCH KEYS
STAT
2ndF
sin-1
sin
archyp
hyp
DMS D
DEG
π
A
EXP
POWER
DRG
DRG
ex
cos-1
cos
E
10x
In
x
F
rθ
a
C
1/x
x2
log
B
Y
tan -1
tan
yx
3
x
x
OFF
ON/C
TAB
n!
CE
F
E
xy
b
x
y
CPLX
BIN
∑x
n
(
)
∑ x2
x
7
8
9
4
5
6
DCT
x
1
2
3
HEX
-
DATA CD
M+
RND
DEC
%
0
+/-
+
=
x
M
δ
s
RM
4. THE CONDITION DURING CALCULATION
No key input is allowed and no data is displayed during calculation.
5. DISPLAY METHOD
a. Set number and result of operation are displayed in the right margin, minus floating.
b. Display of decimal number operation results.
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Display is made according to the display format that has been set by the F↔E key.
• Floating mode
1010≤x≤10100
: Exponent display.
10-99≤x≤10-9
: Exponent display.
0 and 10-
: Floating display.
9
≤x≤10
10
• Engineering mode
0 and 10-99≤x≤10100 (all ranges); Exponent display.
The F↔E key also converts the display format of a displayed numerical value simultaneously with the
display format setting.
At the same time, the number of digits below the decimal point of the above modes follows the display
format assigned by the 2dnF and F↔E keys.
Further, in the same manner as the F↔E key, the conversion is also takes place simultaneously with the
display format setting.
When the number of digits is specified, the last digit displayed is a rounded number, and when there is no
specification of the number of digits, the last digit displayed is a cut number.
Example:
2
7
=
0.285714285
TAB
2ndF
F
F
E
0.286
3
2.857-01
E
2ndF
F
2.8571428-01
E
c. Negative number are not displayed with the minus symbol “−”but ate displayed in hexadecimal, octal, and
binary two’
s complements.
d. Display style and special display
Display style
Special display
2ndF
HYP
DEG
RAD
GRAD( )
BIN
OCT
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HEX
CPLX
STAT
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SC3442
e. Examples of display
Floating of -6000 1/x; TAB=7
Same as above, engineering display
Error display
DEG
E
6. PROTECTION
a. Memory overflow protection
If the overflow occurs in the memory calculation, the data before the calculation is retained.
b. Statistical overflow protection
If the overflow occurs in the statistical calculation, the data before the calculation is retained.
7. THE NUMBER OF DIGITS OF THE INTERNAL RETAINED DATA.
The number of the digits of the mantissa of the displayed data is a maximum of 10 digits, but the available data
for successive calculations is the internally retained data.
The number of digits of the mantissa of internally retained data is as follows:
a. Data input
Maximum
10 digits
b. Arithmetic
Maximum
10 digits
Maximum
3 digits
c. Engineering function
d. Statistical function
e. Complex number function
f. Memory calculation
g. Number of random
8. AUTO CLEAR
When the power supply is suddenly turned on an auto clear routine is executed to initialize as DEC mode, no
TAB, floating, and DEG modes.
9. POWER OFF FUNCTION
a. Auto power off
About 7.5 minutes after operation is ended by pressing the key, the power supply is turned off.
b. OFF
Pressing this key will stop the oscillator. (Memory safe guard)
c. ON
Pressing this key will wake the oscillator and initialize.
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SC3442
OPERATION MODE
1. OPERATION MODE
MODE
DEC
BIN
OCT
HEX
STAT
CPLX
O
O
O
O
O
O
O
X
X
X
O
X
Parenthesis ( )
O
O
O
O
X
X
Constant calculation
O
O
O
O
O
X
Percentage calculation
O
X
X
X
O
X
Statistical calculation
X
X
X
X
O
X
OPERATION
4 Operation +, −, ×, ÷, =
x
Power y ,
6 Operation
STAT
CPLX
DATA setting
x
y
CPLX calculation
X
X
X
X
X
O
Input a, b
O
X
X
X
X
O
Numberic input 0, 1
O
O
O
O
O
O
Numberic input ( 2~7 )
O
X
O
O
O
O
Numberic input 8, 9
O
X
X
O
O
O
Hex input A~F
X
X
X
O
X
X
•, Exp
O
X
X
X
O
O
+/-
O
O
O
O
O
O
Shit key
O
O
O
O
O
O
O
O
O
O
O
O
Memory calculation
O
O
O
O
O
O
F←E, TAB
O
X
X
X
X
X
O
X
X
X
X
O
CE
Memory
Display
conversion
P-R conversion
P→
R→P
Random
RND
O
X
X
X
O
O
Function
1 variable function
O
X
X
X
O
O
Augular
DRG
conversion
DRG
O
X
X
X
O
O
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2. The calculation is always shifted to a specified mode by mode keys
A Mode → B Mode
A
DEC
B
DEC
NOP
BIN
OCT
HEX
DEC
DEC
DEC
Conversion
Conversion
Conversion
BIN
BIN
NOP
Conversion
OCT
HEX
STAT
CPLX
BIN
BIN
Conversion
Conversion
OCT
OCT
Conversion
Conversion
HEX
HEX
HEX
Conversion
Conversion
Conversion
Display Clear
Display Clear
Display Clear
Display Clear
NOP
Display Clear
Display Clear
OCT
Conversion
NOP
Display Clear
Display Clear
STAT
CPLX
DEC
DEC
Conversion
Conversion
State clear
State clear
BIN
BIN
Conversion
Conversion
State clear
State clear
OCT
OCT
Conversion
Conversion
State clear
State clear
HEX
HEX
Conversion
Conversion
State clear
State clear
NOP
Display Clear
Display Clear
State clear
NOP
NOP: No operation
KEY DEFINITIONS
(1) 2NDF
This is the key for specifying the second function.
When this key is pressed, the special display “2ndF”lights. When this key is pressed twice the second function
mode is released.
(2) DRG
DRG
a. Pressing this key will change the mode of angle sequencially.
DEG
RAD
GRAD
and display it.
b. Pressing this key will change the mode of the angle and will convert the displayed data.
DEG → RAD
: RAD=DEGx
RAD → GRAD
: GRAD=RADx
GRAD → DEG
: DEG=GRADx0.9
180
200
(3) 0~9
a. In setting data in the mantissa section, it is set at the right margin, and the data in more than 11 digits
cannot be input.
b. At the data input against the exponent, the last two numbers are efficients.
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(4) • RND
a. The position first pressed has preference, and no input is made to data set in the exponent section.
b. When pressed as the first set number, it is regarded as 0 and • keys are pressed.
c. Random as a 2ndF
Pressing this key shall display the random numbers.
The range of random numbers is 0.000~0.999.
(5) +/a. In setting data in the mantissa section, this key reverses the code in the mantissa section.
Similarly, for the exponent section, it reverses the code in the exponent section.
b. For the operation result, this key reverse codes in the mantissa section.
(6) + - X ÷ = ( )
a. When the key operation are performed by these keys according to a numerical expression, a result of the
operation is obtained according to mathematical priorities. Priorities discriminated are:
1) 1 Variable function
2) Expression in ( ); (The most inner expression has priority in case of multiple parentheses)
3) yx,
x
y
4) x, ÷
5) +, b. Whenever the key is operated, the calculator discriminates the above priorities and holds the data and
operation keys pending as required.
This pending action is possible up to 6 times and 7 or more pending become error.
c. (Key is accepted only immediately after CE, +, -, ×, ÷, y
3x
,
x
y , =, ( keys and not accepted in all other
cases.
When this key is accepted, the displayed data is cleared to 0.
When ( key is first accepted, the special display “( )”illuminates.
When a parenthesis expression is completed) and = keys or when it is cleared by the ON/C key, etc, or when
errors are generated, the special display “( )”goes out.
d. If it is within the allowable range of pending, (can be input into any place in an expression as many times as
desired. However, if the key is pressed continuously 16 times or more, it be comes error.
e. From a viewpoint of numerical expression, even when the corresponding C key is not pressed, the operation
is not executed if the “)”key is pressed. On the other hand, when the “(“key is pressed and the “=”key is
pressed without pressing the corresponding “)”key, the operation is also completed according to the priority.
7. MEMORY CALCULATION (X→M, RM, M+)
a. The memory register “M”used by these keys is a completely independent single memory.
b. Display data is added to “M”(memory register) by M+ key.
c. Display data is stored in “M”by x→M key.
d. Contents of “M”is displayed by MR key.
e. When any data except for 0 is stored in “M”, the special display “M”illuminates.
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8. π
a. This key displays a rounded value (3.14592654) of a 12-digit value (3.1459265359) according to the set
display format.
b. A value that is used in a subsequent operation is the above the 12-digit value.
c. The display is cleared by the following 1st numeric key and new data is set.
9. % CALCULATION
a. When any arithmetic functions or constant mod has not been set, the displayed number is converted from a
percentage to a decimal.
Example) 61.5%
Display
6
1
.
5
%
0.615
b. When = key is pressed after % with any arithmetic function
• Add-on
a+b
• Percentage
%
=
axb
→a+
100
• Discount
a-b
axb
%
=
→
axb
100
a
%
=
→
b
%
=
→ at
b
%
=
→t
a÷b
x100
b
x
• y ,x y
%
=
→a-
axb
100
a y
a
x
x
y
b
(t =
)
100
a
(t =
b
)
100
10. TRIGONOMETRIC AND ARCTRIGONOMETRIC FUNCTIONS (1 VARIABLE)
(Sin
cos
tan
sin-1
cos–1
tan-1)
These functions are calculated according to respective defined areas and accuracy show in (6), and
displayed
Result of operation can become operators.
11. HYPERBOLIC AND ARCHYPERBOLIC FUNCTION
(hyp→sin cos tan,
archyp→sin cos tan)
Same as trigonometric function.
12. EXPONENTIAL AND LOGARITHMIC FUNCTIONS
(ex 10x In log)
Same as trigonometric functions
13. RECIPROCAL, SQUARE, SQUARE ROOT AND CUBE ROOT.
(1/x x2
,
3
)
Same as trigonometric function
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14. FACTORIAL FUNCTION (N!)
n! = n×(n-1)×(n-2)×⋅⋅⋅⋅⋅⋅×2×1
Same as trigonometric
15. → DEG → DMS
a. These keys convert degrees, minutes and seconds into decimal degrees and decimal degrees into degree
minutes and seconds.
b. On the DMS format, the integer part of display data is regarded as degrees, 2 digits below the decimal
point as minutes and the 3rd digit and below as seconds.
1.999999999
-DMS
1
59
5999
degree
minute
second
16. COORDINATE CONVERSION (A B→Rθ→XY)
a. These keys convert the rectangular coordinates into the polar coordinates into the rectangular coordinates.
The angle units that have been set by the DRG key follows.
b. Respective defined areas and accruacy are as shown in (6), however, the range of θ obtained by R→P in
degree is as follows:
1st
Quadrant
0° ≤ θ ≤
90°
2nd
Quadrant
90° ≤ θ ≤
180°
3rd
Quadrant
180° ≤ θ ≤
-90°
4th
Quadrant
-90° ≤ θ ≤
0°
c. Input of 2 variables is performed by setting.
x or r by pressing a key and
y or θ by pressing b key.
d. The operation result of x or R is obtained in the display register of by pressing a key and y or θ by pressing
b key.
Input Data
Result
a
b
a
b
R→P (Rectangular→Polar)
x
y
r
θ
P→R (Polar→Rectangular)
r
θ
x
y
(→r, θ)r=
x
2
+ y2
, θ=tan-1y/x
(→x, y)x=rcosθ, y=sinθ
e. (R→P Conversion) ([x, y] → [r, θ])
f. (P→R Conversion) ([r, θ] → [x, y])
Key operation
Display
Key operation
Display
x
x
θ
θ
a
x
b
θ
y
y
r
r
b
y
a
r
→rθ
r
→xy
x
b
θ
b
y
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17. BINARY MODE (2NDF, →BIN, 0, 1)
a. Data input and output are both binary integers in a maximum of 10 digits.
b. A negative number is expressed in binary number of two’
s complement.
c. The range of internal operation is as shown below and if the result of the operation exceed the range, it
becomes an error (overflow)
Binary Number
Decimal Number

512≤DATA
1 1 1 1 1 1 1 1 1
511
1 1 1 1 1 1 1 1 0
510
1 1 1 1 1 1 1 0 1
509
:
:
Outside the operation range
Binary
Positive
:
:
10
2
1
1
0
0
1 1 1 1 1 1 1 1 1
-1
1 1 1 1 1 1 1 1 0
-2
1 1 1 1 1 1 1 0 1
-3
Integer
Binary
Positive
Integer
(Complement)
:
:
:
:
:
:
1 0 0 0 0 0 0 0 1
-511
1 0 0 0 0 0 0 0 0
-512
Outside the operation range
-512≤DATA
18. OCTAL MODE (2NDF, →OCT, 0~7)
a. Data input and output are both octal integers with a maximum of 10 digits.
b. A negative number is expressed in the octal number display of two’
s complement.
c. The range of internal operation is as shown below and if the result of the operation exceeds the rang, it
becomes an error (overflow)
Octal Number
Decimal Number

5 3 6 8 7 0 9 1 2≤DATA
Outside the operation range
Binary
3 7 7 7 7 7 7 7 7 7
5 3 6 8 7 0 9 1 1
3 7 7 7 7 7 7 7 7 6
5 3 6 8 7 0 9 1 0
Positive
Integer
Octal
Positive
Integer
(Complement)
:
:
:
:
1
0
0
7 7 7 7 7 7 7 7 7
-1
7 7 7 7 7 7 7 7 6
-2
1 1 1 1 1 1 1 0 1
:
:
:
:
:
:
4 0 0 0 0 0 0 0 0 1
-5 3 6 8 7 0 9 1 1
4 0 0 0 0 0 0 0 0 0
-5 3 6 8 7 0 9 1 2
Outside the operation range
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19. HEXADECIMAL MODE (2NDF,→HEX, 0~9, A~F)
a. Data input and output are both hexadecimal integers with a maximum of 10 digits.
b. A negative number is expressed in a hexadecimal number of two’
s complement.
c. The range of internal operation is as shown below and if the result of operation exceeds the range, it becomes
an error (overflow)
Hexadecimal Number
Decimal Number

1X1010≤DATA
Outside the operation range
Hexadecimal
2 5 4 0 B E 3 F F
9 9 9 9 9 9 9 9 9 9
2 5 4 0 B E 3 F E
9 9 9 9 9 9 9 9 9 8
:
:
Positive
:
:
Integer
1
1
0
0
-1
-2
F F F F F F F F F F
F F F F F F F F F E
Hexadecimal
:
1 1 1 1 1 1 1 0 1
Positive
:
Integer
:
- 9 9 9 9 9 9 9 9 9
:
(Complement)
F D A B F 4 1 C 0 2
8
F D A B F 4 1 C 0 1
- 9 9 9 9 9 9 9 9 9
9
-1X1010≥DATA
Outside the operation range
20. COMPLEX NUMBER MODE (2NDF, CPLX)
a. Pressing these keys shall set the complex number mode.
b. Input of 2 parts is performed by setting the real part (X; pressing a key) and the imaginary part (Y; pressing
b key)
c. The operation result of the real part is obtained by pressing = or a key and the imaginary part by pressing b
key.
Input Data 1
Item
Real
Imaginary Function
a
b
Addition
X1
Y1
Subtraction
X1
Y1
Multiplicati
on
Division
X1
X1
Input Data 2
Y1
Y1
Real
Imaginary
Result
Real
Imaginary
a
b
a
b
+
X2
Y2
X1+X2
Y1+Y2
-
X2
Y2
X1-X2
Y1-Y2
X1X2-
Y1X2+X1
X
÷
X2
X2
Y2
Y2
Y1Y2
Y2
X1X2 + Y1Y2
Y1X2 − X1Y2
X2
2
+
Y2
2
2
X2 + Y2
2
21. STATIC CALCULATION MODE (2NDF, STAT)
a. Pressing these keys shall set the static calculation mode.
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SC3442
b. The available number of data is a positive integer, such as 0≤n≤9999999999, and when the number of
data exceeds this integer, it becomes an error.
c. The input range of the data is as follows: 0≤data≤1x1050
This data exceeds the ranges, it becomes an error.
d. n ∑x ∑x2
These keys display the number of data (sample), each sum total of x and sum total of x2
n
∑ xi
• Average; x= i =1
=
n
∑x
n
• The standard deviation of the sample
n
∑ (xi − x)
s=
2
i =1
n
−1
2
The standard deviation of the population
n
2
∑ (xi − x)
∑ x − ( ∑ x) /n
=
n
δ=
−1
i =1
2
2
2
∑ x − ( ∑ x) /n
=
n
n
ERROR CONDITIONS
(1) The result of operation in exponent parts exceed+99
(2) Entering more than the calculation range (6) of each function.
(3) Dividing by zero.
(4) In statistical calculation
a. x, s, σ when n=0
b. s when n=1
(5) The number of pending operations exceeds 3
(6) The number of the parenthesis in the one level exceeds 15.
OPERATION RANGE AND ACCURACY
Function
sin x
cos x
tan x
-1
sin x
-1
cos x
Angle Unit
Operation Range
10
Under Flow Area
Normal Accuracy
-98
DEG
0≤x≤4.499999999x10
0≤x≤5.729577951x10
RAD
0≤x≤7853981633
-10
GARD
0≤x≤4.999999999x10
0≤x≤6.366197723x10-98
DEG
0≤x≤4.500000008x1010
--
RAD
0≤x≤7853981649
-10
GARD
0≤x≤5.000000009x10
--
DEG
Same as sin x
Same as sin x
RAD
Same as sin x
Same as sin x
GARD
Same as sin x
Same as sin x
DEG
0≤x≤1
0≤x≤1.570796326x10-99
RAD
0≤x≤1
--
GARD
0≤x≤1
0≤x≤1.570796326x10-99
DEG
Same as sin-1 x
RAD
GARD
--
-1
--
-1
--
Same as sin x
Same as sin x
10 digits ±1
(To be continued)
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SC3442
(Continued)
Function
Angle Unit
Operation Range
Under Flow Area
99
Same as sin x
99
--
99
0≤x≤9.999999999x10
Same as sin-1 x
In x
0≤x
--
log x
0≤x
DEG
-1
tan x
RAD
GARD
0≤x≤9.999999999x10
0≤x≤9.999999999x10
--
-9.999999999x10 ≤x≤
-9.999999999x1099≤x≤
230.2585092
-227.9559243
99
ex
-9.999999999x10 ≤x≤
-9.999999999x1099≤x≤
99.99999999
-99.00000001
0≤x≤69(integer)
--
1x10-
1.000000001x1099≤x≤
99
10x
X!
1/x
99
Normal Accuracy
-1
≤x≤9.999999999x1099
9.999999999x1099
X2
0≤x≤9.999999999x1049
0≤x≤3.162277660x10-50
x
0≤x≤9.999999999x1099
--
99
0≤x≤9.999999999x10
--
DMS→DEG
0≤x≤9.999999999x109
--
DEG→DMS
9
0≤x≤9.999999999x10
0≤x≤2.777777777x10-99
sinh x
0≤x≤230.2585092
--
cosh x
0≤x≤230.2585092
3
x
tanh x
-1
sinh x
-1
cosh x
-1
tanh x
--
99
--
0≤x≤9.999999999x10
0≤x≤4.999999999x10
99
1≤x≤4.999999999x10
--1
0≤x≤9.999999999x10
--
x,y≤9.999999999x10
49
R→P(x, y)(r, θ)
2
2
99
(x +y )≤9.999999999x10
correspond to the under
flow area of tanx
0≤r≤9.999999999x10
θ correspond to the under
θ correspond to the operation
flow area of sinx, cosx
99
P→R(r, θ) (x, y)
10 digits ±1
-99
range of sinx, cosx
DEG→RAD
0≤x≤9.999999999x1099
RAD→GARD
0≤x≤1.570796326x10
GARD→DEG
98
--
99
0≤x≤9.999999999x10
0≤x≤1.111111111x10-99
-9.999999999x10 ≤x. ln
-9.999999999x1099≤x. ln
y≤230.2585092
y≤-227.9559243
99
yx
0≤x≤5.729577951x1098
i) y>0; The above  mentioned operation range
ii) y<0; x (integer) or 1/x (x=odd, x=0)
The above  mentioned operation range
iii) y=0; x>0
(To be continued)
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SC3442
(Continued)
Function
x
Angle Unit
Operation Range
Under Flow Area
-9.999999999x10≤1/x. ln
-9.999999999x10≤1/x. ln
y≤230.2585092
y≤-227.9559243
Normal Accuracy
i) y>0; The above  mentioned operation range
y
10 digits ±1
ii) y<0; x (odd) or 1/x (integer, x≠0)
The above  mentioned operation range
iii) y=0; x>0
The following operation range after the conversion.
→DEC
--
0≤x≤9999999999
The following operation range after the conversion.
→BIN
--
1000000000≤x≤1111111111, 0≤x≤1111111111
The following operation range after the conversion.
→OCT
--
40000000000≤x≤777777777, 0≤x≤3777777777
The following operation range after the conversion.
→HEX
--
FDABF41C01≤x≤FFFFFFFFFF, 0≤x≤2540BE3FF
(X1+Y1i) +, -, x, ÷ (X2+Y2i)
i) Addition and subtraction
X1+X2≤9.9999999999x1099
Y1+Y2≤9.9999999999x1099
ii) Multiplication
Complex
number
calculation
X1X2-Y1Y2≤9.9999999999x1099
Y1X2-X1Y2≤9.9999999999x1099
10 digits ±1
X1X2, Y1Y2, Y1X2, X1Y2≤9.9999999999x1099
iii) Division
X1X2 + Y1Y2
X2 2 + Y2 2
,
Y1X2 − X1Y2
X2 2 + Y2 2
≤9.9999999999x1099
X22+Y22,X22,Y22,X1X2+Y1Y2,Y1X2-X1Y2,
X1X2,Y1Y2,Y1X2,X1Y2≤9.9999999999x1099
i) Data; x≤9.9999999999x10
ii) ∑x≤9.9999999999x10
iii) ∑x2≤9.9999999999x10
vi) x; n=0
Statistical calculation
v) s; n=1 n=0
2
0≤
2
∑ x − ( ∑ x) /n
n
−1
10 digits ±1
≤9.9999999999x10
vi) σ; n=0
2
0≤
2
∑ x − ( ∑ x) /n
n
≤9.9999999999x10
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SC3442
LCD CONNECTION
a.Segment
2ndF
HYP
DEG
RAD
GRAD
(
)
BIN
OCT
HEK
CPLX
STAT
M
10
9
6 5
4 3
2 1
48 47 46 45 41 40 39 38 37 36 35 34 33 32 31 30 2928
b. Common
2ndF
HYP
DEG
RAD
GRAD
(
)
BIN
OCT
HEK
CPLX
STAT
M
E
COM3 11
COM2 12
27 COM4
26 COM1
WAVEFORM OF COM
VDD (3V)
2V
1V
GND
COM1
COM2
COM3
COM4
160Hz (6.25ms)
0.034ms
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SC3442
TYPICAL APPLICATION CIRCUIT
2ndF
HYP
DEG
GRAD
RAD
(
)
BIN
OCT
12
CPLX
STAT
14
a7~a13, b7~b13 except
a12,b12
1
HEX
a0~a6, b0~b6
39
38
37
36
35
34
33
32
2
b9
b4(KO) 31
3
a10
a4(KO) 30
4
b10
b3(KO) 29
5
a11
a3(KO) 28
6
b11
7
a12
a2(KO) 26
8
b12
b1(KO) 25
9
a13
a1(KO) 24
10 b13
b0(KO) 23
11 COM3
a0(KO) 22
12 COM2
COM4 21
13 KI4
COM1 20
2
2
SC3442
15
14
16
b2(KO) 27
17
18
VDD
hyp
K18
DMS/D
DEG
SIN-1
SIN
ex/E
In
/A
EXP
x
+/-
b6
*Note
y /B
yx
7
a6
2nd F
1st F
10x/F
Iog
COS-1
COS
8
5
4
b5
2nd F
x /C
x
2
RND
1
a5
3
b4
a4
TAN-1
TAN
a
9
6
3
HEX CD/CATA
M+
b3
19
STAT
ON/C
3V
K12 DRG
DRG
K14 archyp
14
r
a3
1/x
x2
b
xy
OCT
X
BIN
+
b2
TAB
F E
X
Y
(
2
∑ x /X
/S
MR
X
a2
CPLX
M
b1
∑ x/n
)
n!
CE
OFF
DEC
+
2nd
%
=
a1
0
b0
a0
HEX
1st F
* SC3442’
s substrate (the back side of SC3442’
s chip) should be connected to the GND level.
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SC3442
CHIP TOPOGRAPHY
Chip size: 1.48X1.62mm2
PAD COORDINATES (Unit: µm)
Pad No.
Symbol
X
Y
Pad No.
Symbol
X
Y
1
a9
-666.0
-589.5
21
COM4
534.0
589.1
2
b9
-546.0
-590.2
22
a0(KO)
414.0
589.1
3
a10
-426.0
-590.2
23
b0(KO)
294.0
589.1
4
b10
-306.0
-590.2
24
a1(KO)
174.0
589.1
5
a11
-186.0
-590.2
25
b1(KO)
54.0
589.1
6
b11
-66.0
-590.2
26
a2(KO)
-66.0
589.1
7
a12
54.0
-590.2
27
b2(KO)
-186.0
589.1
8
b12
174.0
-590.2
28
a3(KO)
-306.0
589.1
9
a13
294.0
-590.2
29
b3(KO)
-426.0
589.1
10
b13
414.0
-590.2
30
a4(KO)
-546.0
589.1
11
COM3
534.0
-590.2
31
b4(KO)
-666.0
589.1
12
COM2
654.0
-590.2
32
a5(KO)
-654.7
408.4
13
KI4
654.0
-431.6
33
b5(KO)
-654.7
287.4
14
KI8
654.0
-311.6
34
a6(KO)
-654.7
167.4
15
GND
654.0
-161.4
35
b6(KO)
-654.7
47.4
16
VDD
654.0
-38.5
36
a7
-654.7
-72.6
17
DEN
655.1
220.6
37
b7
-654.7
-192.6
18
KI1
655.1
340.6
38
a8
-654.7
-312.6
19
KI2
654.6
460.6
39
b8
-654.7
-432.6
20
COM1
654.6
587.4
REV:1.2
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Page 19 of 21
Note: The original point of the coordinate is the die center.
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SC3442
HANDLING MOS DEVICES:
Electrostatic charges can exist in many things. All of our MOS devices are internally protected against
electrostatic discharge but they can be damaged if the following precautions are not taken:
• Persons at a work bench should be earthed via a wrist strap.
• Equipment cases should be earthed.
• All tools used during assembly, including soldering tools and solder baths, must be earthed.
• MOS devices should be packed for dispatch in antistatic/conductive containers.
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