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 T6M23A,JT6M23A-AS
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
T6M23A,JT6M23A-AS
T6M23A, JT6M23A-AS CMOS Single-Chip LSI for LCD Calculator
The T6M23A, JT6M23A-AS is CMOS single-chip microcomputer for 14-digit capacity or 12-degit capacity 2-memory calculator. T6M23A, JT6M23A-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 T6M23A, JT6M23A-AS can selectable with a pin-programmable to function of Power timer and Memory hold. With the following features.
Features
* * * * * * * * * * * * * * * * * * * * * * * *
Weight: 1.52 g (typ.)
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 (+, -, x, /) 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.
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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
Touch Key
Lock Key
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, Note 2: K12 or K13 line is no choose then keep condition. K12 or K13 line is no choose at the system power on then initial condition is 12-digit A , mode selected.
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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. Adding Point Mode Calculations
Key Display Key Display Key Display
3. Constant Calculations
(1) Multiplication Key Display (2) Constant Division Key Display
Constant
(3)
Addition
(4)
Subtraction
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(5) Percentage Key Display (6) Constant Percentage Key Display Constant
(7)
Add-on
(8)
Discount
4. % Calculations
(1) Key Display (2) Key Display
5. Mark-Up, Mark-Down Calculations
(1) Mark-up Key Display (2) Mark-down Key Display
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6. Add-On, Discount Calculations
Add-on Key (1) Discount Key (2)
Display
Display
(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 Supply voltage Input voltage Operating temperature Storage temperature Symbol VDD1 VIN Topr Tstg Rating -0.3~2.0 -0.3~VDD1 + 0.3 0~40 -55~125 Unit V V C C
Electrical Characteristics (VDD1 = 1.5 0.2 V, VDD2 = 3.0 0.4 V, VSS = 0 V, Ta = 25C)
Characteristics Operating voltage "1" input voltage "1" input voltage "0" input voltage Symbol VDD1 VIH (1) VIH (2) VIL Test Circuit Pin Name K2~K9 RESET K10~K13 K2~K13 RESET SEGMENT COM1~3 SEGMENT COM1~3 COM1~3 K1~K9 K1~K13 SEGMENT COM1~3 SEGMENT COM1~3 RESET K0~K9 K10~K13 RESET (1) RESET (2) K0~K9 (1) K0~K9 (2) SEGMENT COM1~3 Test Condition Min 1.2 VDD1 - 0.4 VDD2 - 0.4 0 VDD2 - 0.2 0 VDD1 - 0.2 VDD1 - 0.2 0 Typ. 1.5 Max 2.0 VDD1 VDD2 0.4 Unit V V V V
"1" output voltage
VOH (1)
VDD2
V
"0" output voltage "M" output voltage "1" output voltage "0" output voltage "1" output resistance
VOL (1) VOM VOH (2) VOL (2) ROH

VOUT = VDD2 - 0.5 V VOUT = 0.5 V VOUT = VDD1 - 0 5 V VOUT = VDD1 - 0 5 V VOUT = 0 V VOUT = VDD1 VOUT = VDD1 VOUT = 0.5 V VOUT = VDD1 VDD1 = 1.5 V VDD1 = 1.5 V VDD1 = 1.5 V VDD1 = 1.5 V VDD1 = 1.2 V VDD1 = 1.5 V VDD1 = 1.5 V

0.2 VDD1 + 0.2 VDD1 0.2 70
V V V V k
"0" output resistance
ROL RKEYH (1)

120 100 18 72 5.4 20.0 56.3 429
9.0 34 93.8 600
70 25 14 800 300 300 50 170 15.5 61.3 161.5 3.3 8.9 2.0 1001
k
Key pull up resistance
RKEYH (2) RKEYH (3) RKEYL (1)
k
Key pull down resistance
RKEYL (2) RKEYL (3) RKEYL (4)
k
Oscillating (WAIT) Frequency (OPERATE) Frame frequency 1 (WAIT) Supply current 2 (OPERATE) 3 (OFF) Power off timer times
fWAIT fOP fF IDDWAIT IDDOP IDDOFF T
kHz kHz Hz
A
s
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Waveforms for Display
Note 3: At f = 9 kHz
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Pad Location Table
Name COM3 COM2 COM1 K13 K12 K11 K10 K9 K8 K7 K6 K5 K4 K3 K2 K1 K0 (TS4) (TS3) (TS2) (TS1) RESET VG VDD1 VDD2 VB VA VSS S4 S3 S2 S1 B15 A15 C14 B14 A14 C13 X Point -1757 -1757 -1757 -1757 -1757 -1757 -1757 -1757 -1757 -1757 -1757 -1757 -1757 -1757 -1757 -1757 -1757 -1757 -1757 -1757 -1757 -1757 -1388 -1151 -991 -831 -671 -511 -351 -191 -31 129 289 449 609 769 929 1089 Y Point -1680 -1520 -1360 -1200 -1040 -880 -720 -560 -400 -240 -80 80 240 400 560 720 880 1040 1200 1360 1520 1680 1753 1753 1753 1753 1753 1753 1753 1753 1753 1753 1753 1753 1753 1753 1753 1753 Name B13 A13 C12 B12 A12 C11 B11 A11 C10 B10 A10 C9 B9 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 X Point 1757 1757 1757 1757 1757 1757 1757 1757 1757 1757 1757 1757 1757 1757 1757 1757 1757 1757 1757 1757 1757 1757 1278 1118 958 798 638 478 318 158 -2 -162 -322 -482 -642 -802 -962 -1122 Y Point 1680 1520 1360 1200 1040 880 720 560 400 240 80 -80 -240 -400 -560 -720 -880 -1040 -1200 -1360 -1520 -1680 -1752 -1752 -1752 -1752 -1752 -1752 -1752 -1752 -1752 -1752 -1752 -1752 -1752 -1752 -1752 -1752 (m)
Note 4: (
) Do not connect.
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Chip Layout
Pad Layout
Active Element
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Package Dimensions
Weight: 1.52 g (typ.)
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RESTRICTIONS ON PRODUCT USE
000707EBA
* 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.
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