SC3442 반도체 회로 부품 판매점
SCIENTIFIC 10-DIGITS LCD CALCULATOR
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 Silan Semiconductors |
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
SC3442
ELECTRICAL CHARACTERISTICS (VDD=+3.0V±0.2V, VSS=0V, Tamb=25~70°C)
Characteristics
Symbol
Condition
Operating Voltage
VDD --
Idis VDD=3V, Stand by
Supply Current
Iopr VDD=3V, Operation
Ioff VDD=3V, Off
Osc Frequency
Fdis VDD=3V, Stand by
Fopr VDD=3V, Operation
Frame Frequency
Ff VDD=3V, Stand by
Auto Power Off
Iapo VDD=3V
High Input Voltage (KI8~KI1)
VIH --
Low Output Voltage (KI8~KI1)
VIL --
High Output Voltage (KI8, KI4, KI2) VOH --
Low Output Voltage (KI1)
VOL --
Key Pull Down Resistance (KI1) Fpd Vout=0V
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 --
Min.
2.5
30
110
300
VDD-0.5
VSS
VDD-0.2
VSS
30
30
VDD-0.2
2/3 VDD
-0.2
1/3 VDD
-0.2
VSS
Typ.
3
20
70
1
45
200
180
430
VDD
VSS
50
50
VDD
2/3 VDD
1/3 VDD
VSS
Max.
3.4
35
120
3
280
600
VDD
VSS+0.5
VDD
VSS+0.2
70
70
VDD
2/3 VDD
+0.2
1/3 VDD
+0.2
VSS+0.2
Unit
V
µA
µA
µA
kHz
kHz
Hz
Sec
V
V
V
V
kΩ
kΩ
V
V
V
V
PAD ASSIGNMENT
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.2 2007.04.17
Page 2 of 21
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제조업체: Silan Semiconductors
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SC3442 data
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관련 데이터시트
SC3442
SCIENTIFIC 10-DIGITS LCD CALCULATOR - Silan Semiconductors
SC3449
PROGRAMMABLE CALCULATOR - Silan Semiconductors