EMC EMPCD081A

EMPCD081A
8-Digit Calculator With
Tax / Euro Function
(Battery / Solar / Dual
Power Type)
Product
Specification
DOC. VERSION 0.3
ELAN MICROELECTRONICS CORP.
September 2004
Trademark Acknowledgments:
IBM is a registered trademark and PS/2 is a trademark of IBM.
Windows is a trademark of Microsoft Corporation.
ELAN and ELAN logo
are trademarks of ELAN Microelectronics Corporation.
Copyright © 2004 by ELAN Microelectronics Corporation
All Rights Reserved
Printed in Taiwan
The contents of this specification are subject to change without further notice. ELAN Microelectronics assumes
no responsibility concerning the accuracy, adequacy, or completeness of this specification. ELAN
Microelectronics makes no commitment to update, or to keep current the information and material contained in
this specification. Such information and material may change to conform to each confirmed order.
In no event shall ELAN Microelectronics be made responsible for any claims attributed to errors, omissions, or
other inaccuracies in the information or material contained in this specification. ELAN Microelectronics shall not
be liable for direct, indirect, special incidental, or consequential damages arising from the use of such information
or material.
The software (if any) described in this specification is furnished under a license or nondisclosure agreement, and
may be used or copied only in accordance with the terms of such agreement.
ELAN Microelectronics products are not intended for use in life support appliances, devices, or systems. Use of
ELAN Microelectronics product in such applications is not supported and is prohibited.
NO PART OF THIS SPECIFICATION MAY BE REPRODUCED OR TRANSMITTED IN ANY FORM OR BY
ANY MEANS WITHOUT THE EXPRESSED WRITTEN PERMISSION OF ELAN MICROELECTRONICS.
ELAN MICROELECTRONICS CORPORATION
Headquarters:
Hong Kong:
USA:
No. 12, Innovation Road 1
Hsinchu Science Park
Hsinchu, Taiwan 30077
Tel: +886 3 563-9977
Fax: +886 3 563-9966
http://www.emc.com.tw
Elan (HK) Microelectronics
Corporation, Ltd.
Flat A, 19/F., World Tech Centre
95 How Ming Street, Kwun Tong
Kowloon , HONG KONG
Tel: +852 2723-3376
Fax: +852 2723-7780
elanhk@emc.com.hk
Elan Information
Technology Group (USA)
Europe:
Shenzhen:
Shanghai:
Elan Microelectronics Corp.
(Europe)
Elan Microelectronics
Shenzhen, Ltd.
Elan Microelectronics
Shanghai, Ltd.
Siewerdtstrasse 105
8050 Zurich, SWITZERLAND
Tel: +41 43 299-4060
Fax: +41 43 299-4079
http://www.elan-europe.com
SSMEC Bldg., 3F, Gaoxin S. Ave.
Shenzhen Hi-Tech Industrial Park
Shenzhen, Guandong, CHINA
Tel: +86 755 2601-0565
Fax: +86 755 2601-0500
23/Bldg. #115 Lane 572, Bibo Road
Zhangjiang Hi-Tech Park
Shanghai, CHINA
Tel: +86 21 5080-3866
Fax: +86 21 5080-4600
1821 Saratoga Ave., Suite 250
Saratoga, CA 95070
USA
Tel: +1 408 366-8225
Fax: +1 408 366-8220
Contents
Contents
1
2
3
4
General Description .................................................................................................. 1
Features ..................................................................................................................... 1
Pin Descriptions........................................................................................................ 2
Function Descriptions .............................................................................................. 2
A) Operation Characteristics ....................................................................................... 2
B) Keyboard Descripion .............................................................................................. 4
C) Error Conditions ..................................................................................................... 7
D) Lcd Display............................................................................................................. 8
5
6
7
8
E) Waveforms For Display .......................................................................................... 9
Absolute Maximum Ratings ................................................................................... 10
Electrical Characteristics ....................................................................................... 10
Application Circuit .................................................................................................. 12
Pad Diagram ............................................................................................................ 13
Product Specification (V0.3) 09.15.2004
• iii
Contents
Specification Revision History
Doc. Version
0.1
0.2
0.3
iv •
Revision Description
Date
Initial version
2004/05/04
a.
Modify PIN DESCRIPTIONS in page4.
b.
Delete K11 and K12 in page6.
c.
Modify LCD display S1A9 and S2B9 in page11.
a. Modify DC spec. of IDDOP as page14.
2004/05/10
2004/09/15
Product Specification (V0.3) 09.15.2004
EMPCD081A
8-Digit Calculator With Tax / Euro Function (Battery / Solar / Dual Power Type)
1
General Description
The EMPCD081A is a single-chip LS1 CMOS calculator for 8-digit 1 memory. Besides,
the EMPCD081A is an arithmetic four standard types of general function (+, −, ×, ÷),
TAX / EURO function, percentage calculation functions, leading zero and trailing zero
suppression, chain calculations, MU calculation, Auto Power OFF available. Dual
power supply operation, wide operating voltage, and lower power consumption make it
suitable for 1.5 solar battery operated calculator.
2
Features
Display : 8-digit of data, 1-digits of sign, error, memory load symbol.
TAX / EURO function available.
Algebraic mode.
Standard 4 function (addition, subtraction, multiplication, division).
Memory calculation.
Automatic percentage operation with add-on discount.
Constant calculation.
Chain calculation.
Change sign.
Trailing zero suppression.
Punction on display, commas for thousands.
Memory contents indicator, turned on with nonzero in the memory.
Result overflow, indicating during calculation (most function key are locked as it
happened).
Memory overflow indicating.
Complementary output buffer for direct driving of liquid crystal display.
Oscillator/clock generator internal to chip.
Keyboard encoding internal to chip.
Automatic power on clear.
Wide supply voltage range (1.2 to 1.8V)
Very low power consumption.
Floating minus.
Two key roll over available.
Product Specification (V0.3) 09.15.2004
(This specification is subject to change without further notice)
•1
EMPCD081A
8-Digit Calculator With Tax / Euro Function (Battery / Solar / Dual Power Type)
3
Pin Descriptions
Symbol
4
I/O
Function
COM1~3
O
LCD Common signal output.
A1 ~ A3
O
LCD Segment signal output and strobe output for switch status.
A4 ~ A13
O
LCD Segment signal output.
B1 ~ B3
O
LCD Segment signal output and strobe output for switch status.
B4 ~ B13
O
LCD Segment signal output.
C1 ~ C2
O
LCD Segment signal output and strobe output for switch status.
C3 ~ C13
O
LCD Segment signal output.
VDD,VSS
---
Positive and negative power supply pin.
VA,VB
---
Voltage doubler for LCD, connects a capacitor (0.1uF) between both pins.
VEE
---
LCD voltage from voltage doubler, connects a capacitor (0.1uF) to pin VDD.
TS1
I
Test pin input, be opened.
RESET
I
System reset / AC key input. (built-in schmitt trigger for debouncing)
K0 ~ K2
O
Keyboard polling signal output pins.
K3 ~ K7
I/O
Keyboard polling signal output and strobe input pins.
K8 ~ K10
I
Keyboard strobe input pins.
K11~K14
I
Switch status strobe input pins.
Function Descriptions
A) Operation Characteristics
CONSTANT OPERATION
The EM34011 has implied constant mode on +, -, X, ÷ and % operations. The constant
is performed automatically by the "=" key, "%" key, or "%" key without a constant for
addition, subtraction and division while the first operand is the constant for
multiplication.
NUMBER ENTRY
Numbericals can be entered up to 8-digit.
MEMORY PROTECTION
In any error detection, the memory contents present before the error detection are
protected.
MEMORY INDICATION
If the memory contents are a number other than zero, "M" is indicated in the sign-digit
position.
AUTO POWER OFF
If no key is depressed for a specific period of time, the power supply will automatically
turn off .
2•
Product Specification (V0.3) 09.15.2004
(This specification is subject to change without further notice)
EMPCD081A
8-Digit Calculator With Tax / Euro Function (Battery / Solar / Dual Power Type)
KEY DEFINITION
Touch Key Constitution
Lock Key Constitution
K14 : Select with TAX / EURO function and Memory Hold Status, MH (Memory
Hold), MK (Memory Kill), GTH (GT Memory Hold) and GTK (GT Memory Kill) at
Auto Power OFF or OFF key.
K13 : Select with Auto Power OFF mode (A) and Grand total function (GT).
Product Specification (V0.3) 09.15.2004
(This specification is subject to change without further notice)
•3
EMPCD081A
8-Digit Calculator With Tax / Euro Function (Battery / Solar / Dual Power Type)
B) Keyboard Descripion
EQUAL KEY (=)
Performs Keyed-in operation and maintains that operation for possible use.
Establishes power/reciprocation calculation.
MULTIPLICATION KEY (X)
Enters multiplicand.
Performs previous operation and displays result.
DIVISION KEY (÷)
Enters dividend.
Performs previous operation and displays result.
ADDITION KEY (+)
Conditions machine for an addition.
Performs previous operation and displays result.
SUBTRACTION KEY (-)
Conditions machine for a subtraction.
Performs previous operation and displays result.
PERCENT KEY (%)
The purpose of the percent key is to allow for calculation of add-on and discount.
Determination of add-on requires the principal amount to be the first entry followed
by the "+" or "X" key, with the percentage being the second entry. Depression of the
percent key yields the amount to add on, such as tax or interest. Depression of the
"=" key adds this amount to the principal.
CHANGE SIGN KEY (+/-)
Pushing the "+/-" key twice in succession causes the corresponding sign to appear
and disappear. During digit entry, this function changes he sign of the entered factor.
4•
Product Specification (V0.3) 09.15.2004
(This specification is subject to change without further notice)
EMPCD081A
8-Digit Calculator With Tax / Euro Function (Battery / Solar / Dual Power Type)
POWER ON/ALL CLEAR KEY (ON/AC)
First push power-on displays "0".
In the middle of a digit entry, a second push will clear all operating register.
CLEAR ENTRY/CLEAR KEY (CE/C)
During the digit entry, the first depression will clear the entry register. And display
the previous enter number again.
The second push will clear all registers.
CLEAR ENTRY KEY (CE)
During the digit entry will clear the entry register and display number "0".
SQUARE ROOT KEY (√)
Extracts the square root of a positive number displayed in the entry register.
MEMORY PLUS KEY (M+)
Adds the current display to the contents of memory.
It will terminate a number entry.
MEMORY MINUS KEY (M-)
Subtracts the current display from the contents of memory
It will terminate a number entry.
MEMORY RECALL AND CLEAR KEY (RCM)
First push, as RM key, transfers the contents of the memory register into the
display register.
Second push, as CM key, clears the memory.
MARK-UP KEY (MU)
Execute add-on calculation by A (×) B (MU) or discount calculation by A (×) B (+/-)
(MU).
Execute selling price (mark-up) calculation by A [/] B [MU] or cost (mark-down)
calculation by A [/] B [+/-] [MU].
When intermediate result of addition and subtraction is displayed, execute
changing rate calculation, which is increase rate calculation by A [+] B [-] [MU] or
growing rate calculation by A [+] B [+] [MU].
Product Specification (V0.3) 09.15.2004
(This specification is subject to change without further notice)
•5
EMPCD081A
8-Digit Calculator With Tax / Euro Function (Battery / Solar / Dual Power Type)
NUMBER, DECIMAL KEY (“00”, “0 – 9”, “•”)
The first number key in a sequence will clear the display and enter the digit in the
display. Successive entries will shift the display left and enters the data in display
register. The first decimal point entered is effective. An attempted entry of more than
8 digits or 7 decimal places will be ignored.
SHIFT KEY (
)
Delete the rightest digit and others will shift to right.
TAX+ (TAX+)
Execute TAX-including calculation of displayed number, TAX rate is in TAX
memory.
In the halfway of four rules of arithmetic, TAX-including calculation don't break the
intermediate result, so TAX-including is used in expression.
When immediately after [RATE] key, store displayed number in TAX memory.
TAX- (TAX-)
Execute TAX-excluding calculation of displayed number, TAX rate is in TAX
memory.
In the halfway of four rules of arithmetic, TAX-excluding calculation don't break the
intermediate result, so TAX-excluding is used in expression.
ERUO KEY (EURO)
The depressing will perform the conversion of "key-in number/rate".
The result is automatically rounded to 2 decimal.
After LOCAL key is depressed and make the conversion, the depressing of EURO
key will recall the key-in number.
LOCAL KEY (LOCAL)
The depressing will perform the conversion of "key-in number x rate".
The result is automatically rounded to 2 decimal.
After EURO key is depressed and make the conversion, the depressing of LOCAL
key will recall the key-in number.
TAX RATE SET KEY (RATE)
The depressing will save the entry number as TAX / EURO rate.
6•
Product Specification (V0.3) 09.15.2004
(This specification is subject to change without further notice)
EMPCD081A
8-Digit Calculator With Tax / Euro Function (Battery / Solar / Dual Power Type)
C) Error Conditions
ERROR DETECTION
System errors occur when :
The integral part of any calculation result exceeds 8 digits.
The integral part of any memory calculation result exceeds 8-digit or when the
integral part of any addend or subtrahend to memory exceeds 8-digit.
A division by zero is attempted.
ERROR INDICATION
System error :
"0" is indicated in the first-digit position and "E" in the sign-digit position.
The high-order 8-digit of a calculation result is indicated together with "E". The
location of the decimal point corresponds to the result of calculation times le-8, and
no zero shift is performed.
ERROR RELEASE
System error :
A system error can be released by depressing ON/AC key or CE/C key. However the
calculation result is not cleared by CE/C key but is retained.
Product Specification (V0.3) 09.15.2004
(This specification is subject to change without further notice)
•7
EMPCD081A
8-Digit Calculator With Tax / Euro Function (Battery / Solar / Dual Power Type)
D) Lcd Display
INTER CONNECTION OF LCD (TAX FUNCTION)
INTER CONNECTION OF LCD (EURO FUNCTION)
8•
Product Specification (V0.3) 09.15.2004
(This specification is subject to change without further notice)
EMPCD081A
8-Digit Calculator With Tax / Euro Function (Battery / Solar / Dual Power Type)
E) Waveforms For Display
Product Specification (V0.3) 09.15.2004
(This specification is subject to change without further notice)
•9
EMPCD081A
8-Digit Calculator With Tax / Euro Function (Battery / Solar / Dual Power Type)
5
Absolute Maximum Ratings
Items
Sym.
Min.
Max.
Unit
VDD-VSS
-0.3
2.0
V
Input Voltage
VIN
-0.3
VDD+0.3
V
Operating Temperature
TOP
0
50
OC
TSTG
-55
+125
OC
Supply Voltage
Storage Temperature
6
Electrical Characteristics
(VDD=1.5V+0.3V, VSS=0V, TA=25 o C, VEE=3.0+0.4V)
Parameter
Pin Name
Sym.
Min.
Typ.
Max.
Unit
VDD
1.2
1.5
1.8
V
Condition
Operating Voltage
-
“1” Input Voltage
K3~K10
VIH(1)
VDD-0.4
-
VDD
V
“1” Input Voltage
K11~K14
VIH(2)
VEE-0.4
-
VEE
V
“0” Input Voltage
K3~K14
VIL(1)
0
-
0.4
V
“1” Input Voltage
RESET
VIH(3)
0.6 VDD
-
VDD
V
VDD=1.5V
“0” Input Voltage
RESET
VIL(2)
0
-
0.4 VDD
V
VDD=1.5V
“1” Output Voltage
SEGMENT
COM1~3
VOH(1)
VEE-0.2
-
VEE
V
“0” Output Voltage
SEGMENT
COM1~3
VOL(1)
0
-
0.2
V
“M” Output Voltage
COM1~3
VOM
VDD-0.2
-
VDD+0.2
V
“1” Output Voltage
K0~K7
VOH(2)
VDD-0.2
-
VDD
V
“0” Output Voltage
K0~K7
VOL(2)
0
-
0.2
V
“1” Output Resistance
SEGMENT
COM1~3
ROH
-
-
70
KΩ
VOUT=VEE-0.5V
“0” Output Resistance
SEGMENT
COM1~3
ROL
-
-
70
KΩ
VOUT=0.5V
10 •
Product Specification (V0.3) 09.15.2004
(This specification is subject to change without further notice)
EMPCD081A
8-Digit Calculator With Tax / Euro Function (Battery / Solar / Dual Power Type)
Parameter
Key Pull Down
Name
Sym.
Min.
Typ.
Max.
Unit
Condition
RKEYL(1)
100
180
650
KΩ
VOUT=VDD= 1.2~1.8V
K0~K7
RKEYH(1)
-
-
10
KΩ
RESET
RKEYH(2)
50
-
370
KΩ
RSW(1)
240
400
800
KΩ
FWAIT
10.8
18
25.2
KHz
FOP
120
200
280
KHz
56.3
93.8
131.3
Hz
Wait clock
62.5
104
145.6
Hz
Fast clock
IDDWAIT
-
3.0
4.5
µΑ
VDD=1.5V, no load
2 (OPERATE)
IDDOP
-
13
20
µΑ
VDD=1.5V, no load
3 (OFF)
IDDOFF
-
-
1.0
µΑ
VDD=1.5V, no load
K0~K10
Resistance
Key Pull Up
Resistance
Switch Pull Down
K11~K14
Resistance
Oscillating
(Wait) TS1
Frequency
(Operate) TS1
Frame Frequency
SEGMENT
COM1~3
1 (WAIT)
Supply Current
fF
Product Specification (V0.3) 09.15.2004
(This specification is subject to change without further notice)
VOUT=0.5V
VOUT=VEE
VDD=1.2 ~ 1.8V
• 11
EMPCD081A
8-Digit Calculator With Tax / Euro Function (Battery / Solar / Dual Power Type)
7
12 •
Application Circuit
Product Specification (V0.3) 09.15.2004
(This specification is subject to change without further notice)
EMPCD081A
8-Digit Calculator With Tax / Euro Function (Battery / Solar / Dual Power Type)
8
Pad Diagram
Pad No.
Symbol
X
Y
1
C13
1510.0
350.0
2
B13
1400.0
350.0
3
A13
1290.0
350.0
4
C12
1180.0
350.0
5
B12
1070.0
350.0
6
A12
960.0
350.0
7
C11
850.0
350.0
8
B11
740.0
350.0
9
A11
630.0
350.0
10
C10
520.0
350.0
11
B10
410.0
350.0
12
A10
300.0
350.0
13
C9
190.0
350.0
14
B9
80.0
350.0
15
A9
-30.0
350.0
16
C8
-140.0
350.0
17
B8
-250.0
350.0
18
A8
-360.0
350.0
19
C7
-470.0
350.0
20
B7
-580.0
350.0
21
A7
-690.0
350.0
22
C6
-800.0
350.0
23
B6
-910.0
350.0
24
A6
-1020.0
350.0
25
C5
-1130.0
350.0
Product Specification (V0.3) 09.15.2004
(This specification is subject to change without further notice)
• 13
EMPCD081A
8-Digit Calculator With Tax / Euro Function (Battery / Solar / Dual Power Type)
Pad No.
Symbol
X
Y
26
B5
-1240.0
350.0
27
A5
-1350.0
350.0
28
C4
-1460.0
350.0
29
B4
-1570.0
350.0
30
A4
-1680.0
350.0
31
C3
-1680.0
-350.0
32
B3
-1570.0
-350.0
33
A3
-1460.0
-350.0
34
C2
-1350.0
-350.0
35
B2
-1240.0
-350.0
36
A2
-1130.0
-350.0
37
C1
-1020.0
-350.0
38
B1
-910.0
-350.0
39
A1
-800.0
-350.0
40
COM3
-690.0
-350.0
41
COM2
-580.0
-350.0
42
COM1
-470.0
-350.0
43
K14
-360.0
-350.0
44
K13
-250.0
-350.0
45
K12
-140.0
-350.0
46
K11
-30.0
-350.0
47
K10
98.0
-350.0
48
K9
208.0
-350.0
49
K8
318.0
-350.0
50
K7
428.0
-350.0
51
K6
538.0
-350.0
52
K5
648.0
-350.0
53
K4
758.0
-350.0
54
K3
868.0
-350.0
55
K2
978.0
-350.0
56
K1
1088.0
-350.0
57
K0
1198.0
-350.0
58
RESET
1308.0
-350.0
59
TS1
1418.0
-350.0
60
VDD
1540.1
-350.0
61
VSS
1666.7
-350.0
62
VB
1675.0
-59.3
63
VA
1675.0
130.7
64
VEE
1634.0
350.0
Chip size:3620 x 1010 um
NOTE
For PCB layout, IC substrate must be connected to VSS.
14 •
Product Specification (V0.3) 09.15.2004
(This specification is subject to change without further notice)
EMPCD081A
8-Digit Calculator With Tax / Euro Function (Battery / Solar / Dual Power Type)
Product Specification (V0.3) 09.15.2004
(This specification is subject to change without further notice)
• 15