SC3414 반도체 회로 부품 판매점
1.5V 10/12 DIGIT CALCULATOR CIRCUIT
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 Silan Semiconductors |
SC3414
1.5V 10/12 DIGIT CALCULATOR CIRCUIT
DESCRIPTION
The SC3414 is a single-chip LSI CMOS calculator with 12-digits 2-
memory or 10-digits 2-memory. SC3414 can drive the liquid crystal
display (LCD) with single power supply. Single power supply
operation, wide operating voltage and lower power consumption make
it suitable for 1.5V solar battery operated calculator. Beside SC3414
can be selected as Auto Power OFF or Manual Power OFF with Lock
Key. It also can be selected as Memory Hold or Clear at Power OFF.
50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35
52
53
54
55
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61
62
63
64
1
23 4
34
33
32
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18
5 6 7 98 9 10 11 12 13 14 15 16 17
FEATURES
SC3414 chip topography
* Display: 12-digit or 10-digit (selectable with a pin programmable)
of data, 1-digits of sign, error, memory load symbol.
* Algebraic mode
* Complementary output buffer for direct
driving of liquid crystal display
* Standard 4 function (addition, subtraction, multiplication, division).
* Memory and Grand total calculation.
* Memory overflows indicating.
* Result overflow, indicating during
* Accumulating GT memory register with count up (down) item
counter.
calculation (most function key are
* Automatic percentage operation with add-on discount.
locked as it happened).
* Keyboard encoding internal to chip.
* Automatic delta percentage, mark-up and markdown operations.
* Square root.
* Automatic power on clear.
* Constant calculation.
* Wide supply voltage range (1.1 to
1.8V)
* Chain calculation.
* Change sign.
* Very low power consumption.
* Floating point (selectable with a switch).
* Floating minus.
* Key roll over function (2 keys).
* Fixed point ("0", "1", "2", "3", "4", or "6" selectable with a switch).
* Adding point mode (selectable with a switch).
* Oscillator/clock generator internal to
* Rounding switch (rounding up, down and off).
chip.
* Trailing zero suppression.
* Registration overflow, indicating too
* Function on display, commas for thousands.
many digits are entered (the most
significant digit is protected).
* Memory and GT memory contents indicator, turned with nonzero
in the memory and GT memory.
ABSOLUTE MAXIMUM RATING
Characteristics
Supply Voltage
Input Voltage
Storage temperature
Operating Temperature
Symbol
VDD - VSS
VIN
TSTG
TOPT
Value
-0.3 ~ +2.0
-0.3 ~ VDD + 0.3
-55 ~ +125
0 ~ + 50
Unit
V
V
°C
°C
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.1 2004.08.03
Page 1 of 13
SC3414
ELECTRICAL CHARACTERISTICS (VDD =1.5V±0.2V, GND=0V, TA =25°C, VEE =3.0±0.4V)
Characteristics
Symbol Conditions
Operating Voltage
VDD
K3~K10, RESET Input High Voltage
VIH(1)
K11~K14 Input Low Voltage
VIH(2)
K3~K10, RESET Input Low Voltage
VIL
SEGMENT, COM1~3 Output High Voltage VOH(1)
SEGMENT COM1~3 Output Low Voltage VOL(1)
COM1~3 Output Middle Voltage
VOM
K1~K10 Output High Voltage
VOH(2)
K1~K14 Output Low Voltage
VOL(2)
SEGMENT, COM1~3 Output High
Resistance
ROH VOUT=VEE-0.5V
SEGMENT, COM1~3 Output Low
Resistance
ROL VOUT=0.5V
K1~K10 Pull Down Resistance
RKEYL(1) VOUT =VDD
K1~K10 Pull Up Resistance
RKEYH(2) VOUT=0.5V
RESET Pull Up Resistance
RKEYH(2) VOUT=0.5V
Oscillating (WAIT)
f0 WAIT VDD =1.5V
Frequency (OPERATE)
f0 OP VDD =1.5V
SEGMENT, COM1~3 Frame Frequency
fF VDD =1.5V
IDDWAIT (WAIT)
Supply Current
IDDOP (OPERATE)
IDDOFF (OFF)
Power off Timer Times
T VDD =1.5V
Min.
1.1
VDD-0.4
VEE-0.4-
0
VEE-0.2
0
VDD-0.2
VDD-0.2
0
--
--
240
--
50
10.8
57.6
56.3
--
--
--
429
Typ.
1.5
--
--
--
--
--
--
--
--
--
--
--
--
--
18
96.0
93.8
2.2
7.0
--
600
Max.
1.8
VDD
VEE
0.4
VEE
0.20
VDD+0.2
VDD
0.2
Unit
V
V
V
V
V
V
V
V
V
70 k
70 k
650
10
370
25.2
134.4
131
3.4
11.0
1.0
1001
k
k
k
kHZ
kHZ
HZ
µA
µA
µA
SEC
PAD ASSIGNMENT
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K14
K13
K12
K11
K10
K9
K8
K7
K6
K5
K4
K3
K2
K1
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53
54
55
56
57
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60
61
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63
64
1
SC3414
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18
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
B5
C5
A6
B6
C6
A7
B7
C7
A8
B8
C8
A9
B9
C9
A10
B10
Note: The IC substrate should be connected to GND in the PCB layout artwork.
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.1 2004.08.03
Page 2 of 13
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제조업체: Silan Semiconductors
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SC3414 data
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