T6M72,JT6M72-AS
2003-02-28
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TOSHI BA CMO S Dig ita l Int egrat ed Circ uit Silicon Monolit h ic
T6M72,JT6M72-AS
T6M72, JT6M72-AS CMOS Single-Chip LSI for LCD Calculator
The T6M72, JT6M72-AS is CMOS single-chip microcomputer
for 14-digit or 12-degit 2-memory calculator.
T6M72, JT6M72-AS is the complete single-chip CMOS LSI for
calculator with single power supply operation.
Wide operating voltage range and low-power consumption
make it suitable for 1.5 V solar battery operated.
Besides T6M72, JT6M72-AS can selectable with a
pin-programmable to function of Power timer and Memory hold.
With the following features.
Features
· Display: 14 digits or 12 digits (selectable with a
pin-programmable) of data, 2 digits of sign, error symbol, memory load symbol.
· Algebraic mode.
· Standard 4 functions (+, −, ×, ÷)
· Memory and grand total (GT) memory calculation.
· Accumulating GT memory register with count up (down) item counter.
· Automatic percentage operation with add-on, discount.
· Automatic delta percentage, mark-up and mark-down operations.
· Square root.
· Constant calculation.
· Chain calculation.
· Change sign.
· Floating point or momentary mode (selectable with a switch).
· Fixed point (“0”, “1”, “2”, “3”, “4” or “6” places) or floating point (selectable with a switch).
· Adding point mode (selectable with a switch).
· Rounding switches (rounding up, down and off).
· Leading zero suppression.
· Trailing zero suppression.
· Punctuation on display, commas for thousands.
· Memory and GT memory contents indicator, turned on with non-zero in the memory and GT memory.
· Registration overflow, indicating that too many digits are entered (the most significant digit are protected).
· Result overflow, indicating during calculation (most function key are locked as it happened).
· Memory overflow indicating to flashing of memory load mark.
· Key roll over function.
· Floating minus.
Weight: 1.52 g (typ.)
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Pin Assignment (top view)
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System Block Diagram
Battery Type
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Dual Type
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Solar Type
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Connection of LCD
(1) Select of 12 digits
Segment
Common
(2) Select of 14 digits
Segment
Common
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Key Connection
K13: Selectable with calculated digits 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.
K12: Selectable with auto power OFF mode and total switch.
K11: Rounding switches.
K10: Selectable with fixed point or floating mode.
Note 1: K12 or K13 line is no choose then keep condition.
K
12 or K13 line is no choose at the system power on then initial condition is 12-digit A, 5 mode selected.
Touch Key
Lock Key
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Specification of Calculator
Speed of Calculation
Operation Example
1. Fixed point calculations
(1) Key Display Fixed point Place (2) Key Display Fixed point Place
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2. Ad di ng Point Mode Calculations
Key Display Key Display Key Display
3. Constant Calculations
(1) Multiplication (2) Division
Key Display Constant Key Display Constant
(3) Addition (4) Subtraction
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(5) Percentage (6) Percentage
Key Display Constant Key Display Constant
(7) Add-on (8) Discount
4. D
DD
D% Calculations
(1) Key Display (2) Key Display
5. Mark-Up, Mark-Down Calculations
(1) Mark-up (2) Mark-down
Key Display Key Display
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6. Add-On, Di scount Calculati ons
Add-on Discount
Key Display Key Display
(1)
(2)
(3)
(4)
(5)
(6)
7. Average Operation Use of the Item Counter
Key Display Item Counter Key Display Item Counter
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Maximum Ratings
Characteristics Symbol Rating Unit
Supply volt age VDD1 -0.3~2.0 V
Input volt age VIN -0.3~VDD1 + 0.3 V
Operating temperature Topr 0~40 °C
Storage temperature Tstg -55~125 °C
Electrical Characteristics (VDD1 =
==
= 1.5 ±
±±
± 0.2 V , VDD2 =
==
= 3.0 ±
±±
± 0.4 V, VSS =
==
= 0 V, Ta =
==
= 25°C)
Characteristics Symbol
Test
Circuit P i n Nam e Test Condition Min Typ. Max Unit
Operating voltage VDD1 ¾ ¾ ¾ 1.2 1.5 2.0 V
“1” input volt age VIH (1) ¾ K2~K9
RESET
¾ VDD1
- 0.4 ¾ VDD1 V
“1” input volt age VIH (2) ¾ K10~K13 ¾
VDD2
- 0.4 ¾ VDD2 V
“0” input volt age VIL ¾ K2~K13
RESET
¾ 0 ¾ 0.4 V
“1” output volt age VOH (1) ¾ SEGMENT
COM1~3
¾ VDD2
- 0.2 ¾ VDD2 V
“0” output volt age VOL (1) ¾ SEGMENT
COM1~3
¾ 0 ¾ 0.2 V
“M” output voltage VOM ¾ COM1~3 ¾
VDD1
- 0.2 ¾ VDD1
+ 0.2 V
“1” output volt age VOH (2) ¾ K1~K9 ¾
VDD1
- 0.2 ¾ VDD1 V
“0” output volt age VOL (2) ¾ K1~K13 ¾ 0 ¾ 0.2 V
“1” output resist ance ROH ¾ SEGMENT
COM1~3 VOUT = VDD2 - 0.5 V ¾ ¾ 70 kW
“0” output resist ance ROL ¾ SEGMENT
COM1~3 VOUT = 0.5 V ¾ ¾ 70 kW
RKEYH (1) ¾ RESET VOUT = VDD1 - 0.5 V ¾ ¾ 25
RKEYH (2) ¾ K0~K9 V
OUT = VDD1 - 0.5 V ¾ ¾ 14
Key pull up resist ance
RKEYH (3) ¾ K10~K13 V
OUT = 0 V 120 ¾ 800
kW
RKEYL (1) ¾ RES ET (1) VOUT = VDD1 100 ¾ 300
RKEYL (2) ¾ RES ET (2) VOUT = VDD1 18 ¾ 300
RKEYL (3) ¾ K0~K9 (1) VOUT = 0.5 V ¾ ¾ 50
Key pull down resist ance
RKEYL (4) ¾ K0~K9 (2) VOUT = VDD1 72 ¾ 170
kW
Oscillating (WAIT) ffWAIT ¾ ¾ V
DD1 = 1.5 V 5.4 9.0 15.5 kHz
Frequency (OPERATE) ffOP ¾ ¾ VDD1 = 1.5 V 20.0 34 61.3 kHz
Frame frequency fF ¾ SEGMENT
COM1~3 VDD1 = 1.5 V 56.3 93.8 161.5 Hz
1 (WAIT) IDDWAIT ¾ ¾ VDD1 = 1.5 V ¾ ¾ 3.3
2 (OPERATE) IDDOP ¾ ¾ VDD1 = 1.2 V ¾ ¾ 8.9
Supply
current 3 (OFF) IDDOFF ¾ ¾ VDD1 = 1.5 V ¾ ¾ 2.0
mA
Power off timer times T ¾ ¾ V
DD1 = 1.5 V 429 600 1001 s
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Waveforms for Display
Note 3: At ff = 9 kHz
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Pad Location Table (mm)
Name X Point Y Point
B6 -1757 -1680
C6 -1757 -1520
A7 -1757 -1360
B7 -1757 -1200
C7 -1757 -1040
A8 -1757 -880
B8 -1757 -720
C8 -1757 -560
A9 -1757 -400
B9 -1757 -240
C9 -1757 -80
A10 -1757 80
B10 -1757 240
C10 -1757 400
A11 -1757 560
B11 -1757 720
C11 -1757 880
A12 -1757 1040
B12 -1757 1200
C12 -1757 1360
A13 -1757 1520
B13 -1757 1680
C13 -1089 1753
A14 -929 1753
B14 -769 1753
C14 -609 1753
A15 -449 1753
B15 -289 1753
S1 -129 1753
S2 31 1753
S3 191 1753
S4 351 1753
VSS 511 1753
VA 671 1753
VB 831 1753
VDD2 991 1753
VDD1 1151 1753
VG 1388 1753
Name X Point Y Point
RESET 1757 1680
(TS1) 1757 1520
(TS2) 1757 1360
(TS3) 1757 1200
(TS4) 1757 1040
K0 1757 880
K1 1757 720
K2 1757 560
K3 1757 400
K4 1757 240
K5 1757 80
K6 1757 -80
K7 1757 -240
K8 1757 -400
K9 1757 -560
K10 1757 -720
K11 1757 -880
K12 1757 -1040
K13 1757 -1200
COM1 1757 -1360
COM2 1757 -1520
COM3 1757 -1680
A1 1122 -1752
B1 962 -1752
C1 802 -1752
A2 642 -1752
B2 482 -1752
C2 322 -1752
A3 162 -1752
B3 2 -1752
C3 -158 -1752
A4 -318 -1752
B4 -478 -1752
C4 -638 -1752
A5 -798 -1752
B5 -958 -1752
C5 -1118 -1752
A6 -1278 -1752
Note 4: ( ) Do not connect.
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Chip Layout
Pad Layout
Acti ve Element
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Package Dimensions
Weight: 1.52 g (typ.)
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· TOSHIBA is continually working to improve the quality and reliability of its products. Nevertheless, semiconductor
devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical
stress. It is the responsibility of the buyer, when utilizing TOSHIBA products, to comply with the standards of
safety in making a safe design for the entire system, and to avoid situations in which a malfunction or failure of
such TOSHIBA products could cause loss of human life, bodily injury or damage to property.
In developing your designs, please ensure that TOSHIBA products are used within specified operating ranges as
set forth in the most recent TOSHIBA products specifications. Also, please keep in mind the precautions and
conditions set forth in the “Handling Guide for Semiconductor Devices,” or “TOSHIBA Semiconductor Reliability
Handbook” etc. .
· The TOSHIBA products listed in this document are intended for usage in general electronics applications
(computer, personal equipment, office equipment, measuring equipment, industrial robotics, domestic appliances,
etc.). These TOSHIBA products are neither intended nor warranted for usage in equipment that requires
extraordinarily high quality and/or reliability or a malfunction or failure of which may cause loss of human life or
bodily injury (“Unintended Usage”). Unintended Usage include atomic energy control instruments, airplane or
spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments,
medical instruments, all types of safety devices, etc.. Unintended Usage of TOSHIBA products listed in this
document shall be made at the customer’s own risk.
· The products described in this document are subject to the foreign exchange and foreign trade laws.
· The information contained herein is presented only as a guide for the applications of our products. No
responsibility is assumed by TOSHIBA CORPORATION for any infringements of intellectual property or other
rights of the third parties which may result from its use. No license is granted by implication or otherwise under
any intellectual property or other rights of TOSHIBA CORPORATION or others.
· The information contained herein is subject to change without notice.
000707EB
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RESTRICTIONS O N PRODUCT USE
