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SC3449 PDF даташит

Спецификация SC3449 изготовлена ​​​​«Silan Semiconductors» и имеет функцию, называемую «PROGRAMMABLE CALCULATOR».

Детали детали

Номер произв SC3449
Описание PROGRAMMABLE CALCULATOR
Производители Silan Semiconductors
логотип Silan Semiconductors логотип 

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SC3449 Даташит, Описание, Даташиты
SC3449
PROGRAMMABLE CALCULATOR WITH 10-BIT DUAL DISPLAY
DESCRIPTION
The SC3449 is a monolithic CMOS circuit for scientific calculators,
having the basic calculation, the memory calculation, fraction calculation,
percentage calculation, scientific function calculation, statistics back to
return to compute, degree, cent, second calculation etc. ,and you can
directly press the key according to the sequence of the formulas, while
the calculators will automatically operate in terms of the algorithm. Using
a 3V power supply it can display ten arithmetic figures, 12 characters
composing of lattice, and the state mark of the calculation. The
calculator can turn off by itself.
FEATURES
* Monolithic CMOS structure
* Scientific operation
* Statistic operation
* Fraction operation
* Coordinate transform
* Conversion and operation between Decimal and hex
* Editing input operation
* Independent memory M
* Memories A, B, C, D, E, F, X, Y
* Producing stochastic numbers
* Register “ANS”for final answers
* 3V typical power supply
* 43uA typical power dissipation
* 32k×8bit built-in large capacitance program ROM
* Embedded microprogramming control
* Showing the electricity-saving mode
* Turnoff automatically
* 83-pin COB package
* Calculation range: ± 10-99~±9.999999999×1099
ORDERING INFERMATION
Device
SC3449
Package
DIE
APPLICATIONS
* Science function calculators
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.1 2007.11.19
Page 1 of 23









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SC3449 Даташит, Описание, Даташиты
BLOCK DIAGRAM
SC3449
ABSOLUTE MAXIMUM RATINGS
Characteristics
Symbol
Rating
Unit
DC Power Supply
VDD
<6
V
Input Voltage
VIN
-0.5 VDD + 0.5
V
Operation Temperature
Tamb
0 ~ +60
°C
Storage Temperature
TSTO
-50 ~ +150
°C
Note: Error or device damaging will occur when the value is over these absolute maximum ratings. Normal
operation parameter is to see AC/DC electrical parameter.
DC ELECTRICAL CHARACTERISTICS (Tamb = 25 °C, VDD = 3 V)
Characteristics
Symbol
Test Condition
Operating Voltage
VDD 2 batteries
Operating Current
FCPU = 500KHz @ 3V,no key-
IOP
press
standby Current
VDD = 3V, 32768Hz OFF,
ISTBY
ROSC OFF
Input High Level
VIH VDD = 3V
Input Low Level
VIL VDD = 3V
Output High Current (PA5 - 0)
VDD = 3V
IOH
VOH = 2V
Output Sink Current (PA5 - 0)
VDD = 3V
IOL
VOL = 1V
Min.
2.4
-
-
2.0
-
-
-
Typ.
-
35
0
-
-
1.0
-1.0
Max.
3.6
-
Unit
V
µA
0.1 µA
-V
0.8 V
- mA
- mA
(To be continued)
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.1 2007.11.19
Page 2 of 23









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SC3449 Даташит, Описание, Даташиты
(Continued)
Characteristics
Symbol
Test Condition
Output High Current (PA7 - 6)
VDD = 3V
IOH
VOH = 2V
Output Sink Current (PA7 - 6)
VDD = 3V
IOL
VOL = 1V
Oscillator Resistor
Rosc FCPU = 500KHz @ 3V
CPU Clock frequency
FCPU VDD = 3V
PIN CONFIGURATION
SC3449
Min.
-
Typ.
2.5
Max.
-
Unit
mA
- -2.5 -
mA
- 350 -
K
- - 1.0 MHz
SEG18
SEG17
SEG16
SEG15
SEG14
SEG13
SEG12
SEG11
SEG10
SEG9
SEG8
SEG7
SEG6
SEG5
SEG4
SEG3
SEG2
SEG1
COM1
COM2
TEST
83 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63
1 62
2 61
3 60
4 59
5 58
6 57
7 56
8 55
9 54
10 SC3449 53
11 52
12 51
13 50
14 49
15 48
16 47
17 46
18 45
19 44
20 43
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42
SEG40
SEG41
SEG42
SEG43
SEG44
SEG45
SEG46
SEG47
SEG48
SEG49
VSS
SEG50
SEG51
SEG52
SEG53
SEG54
SEG55
SEG56
SEG57
SEG58
PIN DESCRIPTION
Pin No.
25
52
27
Pin name
VDD
VSS
RESET
Pin description
Power supply input
Ground input
System reset input (internal pull-up) , low active
(To be continued)
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.1 2007.11.19
Page 3 of 23










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