IZ1223M [INTEGRAL]
BASIC FUNCTION 8-DIGITS LCD CALCULATOR WITH TOUCH TONE AND PUNCTUATION FUNCTION; 带触摸的语气和标点符号功能基本功能的8位LCD计算器
| 元器件型号： | IZ1223M |
| 生产厂家： | 
INTEGRAL CORP.
|
| 描述和应用： | BASIC FUNCTION 8-DIGITS LCD CALCULATOR WITH TOUCH TONE AND PUNCTUATION FUNCTION |
| PDF文件： | 总8页 (文件大小：132K) |
| 下载文档： | 下载PDF数据表文档文件 |
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IZ1223M
B
ASIC
F
UNCTION
8-D
IGITS
LCD C
ALCULATOR
W
ITH
T
OUCH
T
ONE AND
P
UNCTUATION
F
UNCTION
The IZ1223M is a single chip CMOS LSI with 8-digit arithmetic operation, single memory,
extraction-of-square-root, percentage calculation and auto power off and punctuation and touch
tone function, designed for FEM LCD operation with a 3.0V power supply.
FUNCTIONS
•
Auto constant calculations (constant: multiplicand,
divisor,
addend and subtrahend)
•
Square and reciprocal calculations
•
Mark-up and mark-down calculations
•
Extraction of square root
•
Percentage calculations
•
Chain multiplication and division
•
Power calculations
•
Rough estimate calculations
•
Touch tone function
•
Punctuation comma display
•
Clear key: ON/C, ON/CE, CE
o
ABSOLUTE MAXIMUM RATINGS
(T
a
= 25 C)
Characteristic
Symbol
FEATURES
•
Single chip CMOS construction
•
Floating decimal point
•
LCD direct drive
•
Overflow indication: “E”
•
Accumulating memory: M+, M-, RM,
CM, RM/CM
•
Bare chip available
•
Mirror type
•
Four standard functions (+, -,
×, ÷
)
Value
- 0.3 ~ + 3.5
- 0.3 ~ V
GG
+ 0.3
2.5 ~ 3.5
0 ~ + 50
- 55 ~ + 125
Unit
V
V
V
o
C
o
C
Note
1
Terminal Voltage
Supply Voltage
Operating Temperature
Storage Temperature
V
GG
V
IN
V
GG
T
OPR
T
stg
Note:
1. Maximum voltage on any pin with respect to the GND
ELECTRICAL CHARACTERISTICS
(T
a
= 25
o
C, V
GG
= 3.0V, unless otherwise specified)
Characteristic
Symbo
Test Condition
Min
Typ Max Uni
l
t
Input Voltage 1 (K2 ~ K6, TI,
V
IH1
V
GG
- 0.4
V
S2)
V
IL1
0.4
V
IH2
V
GG
- 0.4
Input Voltage 2 (S1)
V
IL2
I
IH1
I
IL1
I
IH2
I
IL2
I
IH3
I
IL3
I
IH4
V
IN
= V
GG
V
IN
= 0V
V
IN
= V
GG
V
IN
= 0V
V
IN
= V
GG
S2=GN
D
V
IN
= 0V
V
IN
= V
GG
S2 =
0.2
1
10
1
1
1
15
40
V
5.5
1
µ
Input Current 4 (S1)
5
20
10
30
µ
Input Current 3 (S1)
µ
Input Current 2 (S2)
µ
Input Current 1 (K2 ~ K6, TI)
A
A
A
A
IZ1223M
Characteristic
Symbo
l
I
IL4
V
OH1
V
OL1
V
OA
V
OB
V
OC
Display Frequency
Touch Tone (PO)
Output Drive Current
F
d
I
OL
I
OH
I
OFF
(1)
Dissipation
I
dis
(2)
Test Condition
V
GG
V
IN
= 0V
without load
I
OUT
= 15µA
without load
without load
without load
V
GG
= 3V while
display is on,
V
GG
= 3V, V
OL
=
0.5V, TI =3V
V
GG
= 3V, V
OL
=
0.5V, TI =3V
Display off, V
GG
=
3V
V
GG
= 3V while
display is on,
Min
Typ
Max
1
V
GG
-
0.15
0.15
2.80
1.30
2.95
1.50
0
50
3
mA
-3
0.1
75
1.70
0.20
Hz
V
V
Uni
t
Output Voltage 1 (P1, P2,
A2~A5)
Output Voltage 2 (H1 ~ H3,
a1 ~ a9, b1 ~ b8, c1
~ c8)
NOTE: 1) Measured by the next test circuit after power supply automatically turns off.
2) Measured by the next test circuit while “0” is being displayed after auto clear operation and while
key is not being depressed.
OUTPUT WAVEFORM 1; Hi (i = 1, 2, 3)
OUTPUT WAVEFORM 2; ai, bi, ci, (i = 1, 2, ... , 8)
FUNCTIONAL DESCRIPTION
Decimal point system
Complete floating decimal point system.
Integral number
: 8 digits leading zero suppression. Zero shift.
Symbols
:
-
: negative number display
E
: error display
M
: memory display
,
: punctuation comma
: touch tone indicator
2
µ
20
30
A
♪
IZ1223M
Error detections
•
System errors occur when:
1) The integral part of any memory calculation result exceeds 8 digits.
2) The division by zero.
3) The extraction of square root of a negative number.
•
Rough estimate calculation error
When the integral part of the result of any standard functions, percentage, square, reciprocal,
or power calculations exceed 8 digits.
Error indication
•
System error
“0” is indicated in the 1-digit position and “E” in the sign-digit position.
•
Rough estimate calculation error
The high-order 8-digit calculation result is indicated together with “E”.
The decimal point is indicated in the position corresponding to a calculation result of time 10
-8
,
and no zero shift is performed
Error release
•
System error
A system error can be release by the ON/C or ON/CE key.
•
Rough estimate calculation error
A rough estimate calculation error can be released by the ON/C, ON/CE, CE key.
A calculation result is not cleared by ON/CE, CE key but is retained.
Number entry
Numerical can be entered up to 8 digits. Numerical entries equal to 9 digits or more are ignored.
Memory protection
In any error detection, the memory content is retained.
Memory indication
If the memory content is not zero, “M” is indicated in the sign-digit position.
Doubler key depression
The order of the priority when two keys are being depressed simultaneously, is as follows:
3
IZ1223M
OFF
ON/C
ON/CE
5
6
4
RM/CM
.
9
-
8
=
M+
x
.
.
0
1
3
2
CM
7
+/-
CE
+
M-
%
RM
When the OFF and ON/C key are depressed simultaneously, the OFF key is given priority.
Key bounce protection
Front edge
Down to 1 word and up to about 3 words.
Trailing edge
9 words
1 word is 3.3ms when display frequency is fd = 100Hz.
DISPLAY FONTS
•
Numericals font
Sigh font
,
,
.
,
.
,
.
,
.
,
.
.
. .
LCD connector
H2 H3 a9 c8 b8 a8 c7 b7 a7 c6 b6 a6 c5 b5 a5 c4 b4 a4 c3 b3 a3 c2 b2 a2 c1 b1 a1 H1
4
URWDFLGQL HQRW KFXRW
QRLWDXWFQXS
VXQLP
URUUH
\URPH0
,
H1
H2
H3
a9 c8
b8a8 c7
,
,
,
IZ1223M
,
b7a7 c6
b6 a6 c5
b5a5 c4
b4a4 c3
b3a3 c2
b2a2 c1
b1a1
AUTO POWER OFF
Power automatically turns off after 9 - 11 minutes pass from the last key pressure. (S
1
= Low, S
2
=
High)
ON/C KEY
All operations except memory content are cleared by ON/C key.
TOUCH TONE ( ) KEY
•
When power is ON, the touch tone function is enable and the beep sound is generated output
during 125ms and sing is displayed on LCD.
•
Selection of touch tone function is toggled by touch tone key.
•
Output wave form.
ft = 2KHz
MARK-UP AND MARK-DOWN CALCULATION
Mark-up and mark-down calculation are performed as follows.
ENTRY
A
±
B
%
A
x
B
%
+OR-
=
A
A
B
A ± AB/100
DISPLAY
A
A
B
AB/100
AB/100
A+AB/100 OR A --AB/100
♪
♪
- V
OA
- V
OC
125 ms
5
相关元器件产品Datasheet PDF文档
IZ1225MR
BASIC FUNCTION 8-DIGITS LCD CALCULATOR WITH TOUCH TONE AND PUNCTUATION FUNCTION
12
INTEGRAL
