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PDF SC3442 Data sheet ( Hoja de datos )
| Número de pieza | SC3442 | |
| Descripción | SCIENTIFIC 10-DIGITS LCD CALCULATOR | |
| Fabricantes | Silan Semiconductors | |
| Logotipo |  |
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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
– Minus
GRAD
()
Gradient
Parenthesis
ORDERING INFORMATION
E Error
BIN Binary mode
2ndF 2nd Function
OCT
Octal mode
HYP Hyperbolic
HEX
Hexadecimal mode
DEG Degree
CMX
Complex number mode
RAD Radian
STAT Statistic calculation mode
* The minus sign of the mantissa is floating minus.
* The arithmatic 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
* 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
VDD=3.0V single power supply.
F→E key.
ABCOLUTE MAXIMUM RATINGS
Characteristics
Terminal Voltage
Operating Temperature
Storage Temperature
Symbol
VDD
VIN
Topr
Tstg
Value
-0.3 ~ +5.0
-0.3 ~ VDD+0.3
0 ~+40
-55 ~ +125
Unit
V
V
°C
°C
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.2 2007.04.17
Page 1 of 21
1 page  
SC3442
Display is made according to the display format that has been set by the F↔E key.
• Floating mode
1010≤x≤10100
10-99≤x≤10-9
0 and 10-
9≤x≤1010
: Exponent display.
: Exponent display.
: Floating display.
• 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
2ndF
TAB
FE
3
0.286
FE
2.857-01
2ndF F E
2.8571428-01
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 HEX CPLX STAT
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.2 2007.04.17
Page 5 of 21
5 Page 
SC3442
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 59 5999
1.999999999
-DMS
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
ab
Result
ab
R→P (Rectangular→Polar)
x
y
r
θ
P→R (Polar→Rectangular)
r
θ
x
y
(→r, θ)r= x2 + y2 , θ=tan-1y/x
(→x, y)x=rcosθ, y=sinθ
e. (R→P Conversion) ([x, y] → [r, θ])
Key operation
Display
xx
ax
yy
by
→rθ r
bθ
f. (P→R Conversion) ([r, θ] → [x, y])
Key operation
Display
θθ
bθ
rr
ar
→xy x
by
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.2 2007.04.17
Page 11 of 21
11 Page | ||
| Páginas | Total 21 Páginas | |
| PDF Descargar | [ Datasheet SC3442.PDF ] | |
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