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| TC83230-0015 TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC83230-0015 TC83230-0015: Single-Chip CMOS LSI for Calculators with Printers (applicable printer heads: M31/M31A manufactured by EPSON) The TC83230-0015 LSI is a single-chip CMOS LSI for use in calculators with printers. It integrates I/O logic circuits necessary to configure a calculator with 10- or 12-digit display, two-memory function, two-tax function, serial printer used to print calculation results, oscillator, and LCD drivers. Features Operational Features * Print: 10 or 12 digits of data. (including decimal point.) 1 digit of floating minus sign, 1 digit of operational symbol. 1-color printing (black). * Display: 10 or 12 digits of data. (including punctuation in each digit.) 1 digit of floating minus sign, memory load, error symbol, grand total memory load, 3 digits of commas. * * * * Decimal output: Decimal set lock key controls output format. Fixed decimal setting ("0", "1", "2", "3", "4", "6"), full floating decimal, ADD mode and ADD2 mode. Key-input buffer: 12 words Operation methods: Addition and subtraction: By ARITHMETIC operation Multiplication and division: By algebraic operation Function: Four function, repeat multiplication and division, mixed calculation, percentage calculation, percent discount and add-on calculation, memory calculation, delta percent calculation, add-mode calculation, mark-up/down calculation, total calculation, constant calculation, tax calculation Two-key rollover. * Leading zero suppression Weight: 1.52 g (typ.) Protection (1) (2) In the overflow condition, all key except "C", "C/CE", "CE", "Feed", "" key are inoperative. Key chatter protection. Auto-Clear at Power On Auto-clear functions by connecting a capacitor to the RESET pin. 1 2003-03-04 TC83230-0015 Pin Assignment (top view) QFP80 2 2003-03-04 TC83230-0015 System Block Diagram 3 2003-03-04 TC83230-0015 Connection of LCD Segment Common 4 2003-03-04 TC83230-0015 Key Connection Touch Key Lock Key Touch Key Select ON Key 5 2003-03-04 TC83230-0015 Specification of Calculator Operation Specifications (1) Operations depending on key types and modes * Touch key Key Name Mode Switch C CE C/CE Numeral OFF *, +, , = P/NP RND DEC % D% MU/D IC/AVE CAL Mode Touch Key Mode Operates as clear key Operates as clear entry key Operates as clear or clear entry key Numeral Key-inputs numerals Operates as off key Key-inputs decimal points Operates as total or sub-total key Operates as four-function key Operates as = key Switches print or non-print Switches round-off and round-up Switches decimal points Operates as % key Operates as delta percentage calculation key Operates as mark-up/down key Operates as item count key or average key Operates as non-add-print key for left-justified printing Operates as right-shift key Lock Key Mode Operates as clear key Operates as clear entry key Operates as clear or clear entry key Numeral Key-inputs numerals 3/4 Key-inputs decimal points Operates as total or sub-total key Operates as four-function key Operates as = key 3/4 3/4 3/4 Operates as % key Operates as delta percentage calculation key Operates as mark-up/down key Operates as item count key or average key Operates as non-add-print key for left-justified printing Operates as right-shift key Tax Set Mode (SETI/II key is on) Touch Key Mode Clears input data Clears input data Clears input data Inputs numerals Unused Key-inputs decimal points Unused Unused Unused Unused Unused Unused Unused Unused Lock Key Mode Clears input data Clears input data Clears input data Inputs numerals Unused Key-inputs decimal points Unused Unused Unused Unused Unused Unused Unused Unused Unused Unused Unused Unused #/P (R) +/MI*, MII*, MI, MII, MI-, MII-, MI+, MII+ -TAXI/II +TAXI/II S IC MOD Unused Operates as right-shift key Unused Operates as right-shift key Unused Operates as sign change Operates as sign change Unused key key Operates as memory function key Operates as -TAXI/II key Operates as +TAXI/II key Operates as S key Operates as IC-mode key Operates as memory function key Operates as -TAXI/II key Operates as +TAXI/II key 3/4 3/4 Unused Unused Unused Unused Unused Unused Unused Unused Unused Unused 6 2003-03-04 TC83230-0015 Key Name Mode Switch GT MOD GT * CAL Mode Touch Key Mode Operates as GT-mode or non-GT mode key Operates as GT key Lock Key Mode 3/4 Operates as GT key Tax Set Mode (SETI/II key is on) Touch Key Mode Unused Unused Lock Key Mode Unused Unused * Lock key CAL Mode Touch Key Mode 3/4 3/4 3/4 3/4 3/4 Operates as paper feed key 3/4 Lock Key Mode Switches decimal points Switches round-off and round-up Tax Set Mode (SETI/II key is on) Touch Key Mode Unused Unused Lock Key Mode Unused Unused Unused Unused Unused Operates as paper feed key Unused Key Name Mode Switch 0, 1, 2, 3, 4, 6, A, AII CUT, UP IC, IC+ S GT FEED P/NP T/N Operates as IC/IC+ key Unused Operates as S key Switches GT-mode or non-GT mode Operates as paper feed key Switches print or non-print Unused Unused Operates as paper feed key Unused (Note 1) 2 TAX (Note 1) 2M (Note 1) Selects lock key mode or touch key mode. Selects single tax mode or double tax mode. Selects single memory mode or double memory mode. Note 1: Can switch modes only with the reset key. 7 2003-03-04 TC83230-0015 (2) Explanation of function [0~9]...................... Keys in numbers from 0 to 9, 00, and 000. If the number of displays digits exceeds [00, 000] 10 or 12 key entry is invalid. [].......................... If this key is pressed after a key operation except data entry, the displays is cleared and entry of [] is stored in memory. The decimal point is shifted for subsequent data entry. If the [] key is pressed during data entry, displays does not change. [+, -]...................... Add or subtract operation data and displays the result. The decimal point is floating except when A mode is specified. Addition or subtraction can be performed repeatedly. If these key are pressed in multiplication/division mode or in constant calculation mode, add or subtract displays data to addition/subtraction registers, then displays the result. At this time, in the operation mode multiplicand or divisor do not change. These keys increment or decrement the item counter. In the following operation mode, the operations are executed, and the results are printed and displayed. At that time, addition or subtraction using the addition/subtraction register is not executed. 1) Percent discount/add-on calculation a b% + .....a + (ab/100) c% +......a + (ac/100) a b% - .....a - (ab/100) c% -......a - (ac/100) Percent discount/add-on with constants are calculated as above. [].......................... Prints and displays the intermediate result in addition/subtraction register. In item count mode, prints the contents of the item counter before the calculation result printing. Contents of data register or stored arithmetic instruction are not changed. [*].......................... Print and displays the result in addition/subtraction register. Automatically feeds paper one line. In item count mode, the contents of the item counter are printed before the calculation result printing. After this key operation, the contents of the addition/subtraction register are cleared. The contents of the item counter are cleared at the first addition/subtraction in next step. The contents of the data register or stored arithmetic instruction are not changed. When GT mode is specified, the result of addition/subtraction is added to the GT memory. MI+, MII+ ............ If the arithmetic instruction is not stored or if the mode is constant calculation MI-, MIImode, first prints the displays contents after rounding to the specified number of decimal places, performs addition/subtraction using the data in memory, then stores the result in memory. If the multiplication/division instruction is stored, executes the arithmetic instruction, rounds the result to the specified number of decimal places, prints and displays the result, adds/subtracts with the data in memory, then stores the result to memory. At that time, the multiplicand or divisor is stored together with the mode, constant calculation mode. When this key is pressed immediately after the [] or [MI+, MII+, MI-, MII-] key, operation is the same as that for the [=] key; that is, adds/subtracts using data in memory. This key operation increments or decrements the item counter for memory. 8 2003-03-04 TC83230-0015 [MI, MII]............ Prints or displays the intermediate result of memory calculation. In item count mode, prints the contents of the item counter for memory before the calculation result printing. Contents of the data register or stored arithmetic instruction are not changed. [MI*, MII*]............ Prints and displays the result of memory calculation and automatically feeds paper one line. In item count mode, prints the contents of the item counter for memory before the calculation result printing. After the [MI*, MII*] key operation, the contents of memory and the contents of the item counter for memory are cleared. Contents of the data register or stored arithmetic instruction are not changed. [, ]...................... If the multiplication or division instruction is stored in memory, prints the operators, performs the operations and displays the results while simultaneously storing a new arithmetic instruction in memory. The decimal point for the result is floating. If the [] or [] key is pressed in constant calculation mode, prints the displayed numeric value without performing an operation and stores a new multiplication/division instruction in memory. [=].......................... Executes a stored multiplication/division instruction, rounds the result to the specified number of decimal places, prints and displays the result, then automatically feeds the paper one line. Stores the multiplicand or divisor together with constant calculation mode in memory. If an instruction is not stored in memory, no operation is performed and the previous state is held. Pressing the [=] key immediately after the [] or [] key performs the following operation. a =.......aa a =.......1 [%]......................... If an arithmetic instruction is stored in memory, performs percentage calculation, rounds the result to the specified number of decimal places, prints and displays the result. Stores the multiplicand/divisor together with constant calculation mode in memory. If a percentage calculation for multiplication is performed, percent discount/add-on calculation can be done by using the [+] or [-] key. At that time, addition/subtraction using the addition/subtraction register is not performed. If an arithmetic instruction is not stored in memory, no operation is performed and the previous states is held. Pressing the [%] key immediately after the [] or [] key performs the following operation. a % = ...aa/100 a % = ...100 % key operation example: percent discount/add-on calculation a b%....ab/100 +.............a + (ab/100) c% ..........ac/100 +.............a + (ac/100) a b%....ab/100 -.............a - (ab/100) c% ..........ac/100 -.............a - (ac/100) 9 2003-03-04 TC83230-0015 [MU/D].................. If a multiplication/division instruction is stored in memory, cancels the data. The decimal point for the result is floating. MU/D key operation example: aMU/Db =................. a/(1 - (b/100)) - a (prints profit) ................. a/(1 - (b/100)) (mark-up) c =................. a/(1 - (c/100)) - a (prints profit) ................. a/(1 - (c/100)) (mark-up) aMU/Db +/- =........... a/(1 + (b/100)) - a (prints profit) ........... a/(1 + (b/100)) (mark-down) c +/- =........... a/(1 + (c/100)) - a (prints profit) ........... a/(1 + (c/100)) (mark-down) [D%] ...................... If a multiplication/division instruction is memorized, cancels the data. D%key operation example: aD% b =..................... b - a ..................... (b - a)/iai (prints difference) c = ..................... c - a (change delta percent) ..................... (c - a)/iai (prints difference) aD% b +/- =............... -(b + a) (change delta percent) ............... -(b + a)/iai (prints difference) c +/- = ............... -(c + a) (change delta percent) ............... -(c + a)/iai (prints difference) [+/-]....................... Inverts sign of the displayed number at key entry. [(R)] ........................ Shifts the contents of the displays to the right by one digit at key entry. For an estimation calculation error, cancels the error. [GT ]................... Calls the contents of GT memory. If the key is pressed once, calls the contents of * GT memory, but does not change current state. If the key is pressed twice, calls the contents of GT memory and clears them. [C] ......................... Cancels all arithmetic instructions and errors, clears the contents of all the registers except the memory register, and prints 0.C. [CE] ...................... If pressed at key entry, clears only the contents of the displays; does not change the stored arithmetic instruction or the contents of the data register. Invalid if pressed after one of the following keys: [C] [] [] [+] [-] [=] [%] [D%] [MI+, MII+] [MI-, MII-] [MI, MII] [MI*, MII*] [MU/D] [IC/AVE]. The result of pressing the [CE] key after the [#/P] key depends on the state before the keys were pressed. [IC+]...................... Selects item count mode. [IC] IC+.........Counts up by the [+] or [-] key. IC.........Counts up by the [+] key, down by the [-] key. [S] ......................... If an operation is performed by the [=] or [%] key in auto accumulation calculation mode, adds the operation result to the addition/subtraction register and increments the item counter. [C/E] ..................... If pressed at key entry, operates same as the [CE] key. If pressed after one of the following keys, operates same as the [C] key: [C/CE] [] [] [+] [-] [=] [%] [D%] [MI+, MII+] [MI-, MII-] [MI, MII] [MI*, MII*] [MU/D] [IC/AVE]. The result of pressing the [C/CE] key after the [+/-] or the [#/P] key depends on the state before the keys were pressed. 10 2003-03-04 TC83230-0015 [#/P] ...................... If pressed after the numerical key entry, prints the contents of the key entry data register together with the # symbol, but does not change the current state. If the key is pressed after a key except the numerical keys or [+/-] key, does not change the contents of the displays or the current state. If the key is pressed in clock mode, automatically prints the displayed date and time. +TAXI/II ............. Calculate included tax operation or excluded tax operation. But, only prints and -TAXI/II does not express the tax. Prints or displays the result-value. (result-value adjusts decimal-point (TAB) setting.) Feeds the paper one line after prints. TAXI key operation example: (TAX = 3%) a [+TAXI] ........ a (3/100) (prints TAX) ........ a + (a (3/100)) (included TAX) a [-TAXII] ........ a/(1 + 3/100) - a (prints TAX) ........ a/(1 + 3/100) (excluded TAX) If pressed at key entry after number key entry, calculate the tax as a result of calculation. When multiplication/division instruction is stored in memory. [P/NP] ................... Switches between PRINT and NON-PRINT mode. At reset, NON-PRINT mode is set. Switches mode in each time when the [P/NP] key is pressed: P (R) NP (R) P (R) NP. In PRINT mode, displays "print mode". Valid only when the [ /L ] lock key is off. [RND] ................... Switches between round-up, round-off and half-adjust. At reset, half-adjust is set. Switches the mode in each time when the [RND] key is pressed: 5/4 (R) (R) (R) 5/4 (R) (R) . Displays round-up/round-off. Valid only when the [ /L ] lock key is off. [GT MOD] ............ Exchange GT-mode. (initial setting isn't support GT-mode.) GT mode cycles not-support and support. And displays GT-mode flag. Only touch key mode is valid. [IC MOD].............. Exchange IC-mode. (initial setting isn't support IC-mode.) IC mode cycles not-support, IC+ and IC-mode. And displays IC-mode flag. Any touch key mode is valid. [IC/AVE]............... Prints or displays the item counter, when IC/AVE key continuously pressed twice just after pressed [*] key and [] key, After first, prints or displays the item counter. The second, the calculation of the mean number are executed, prints or displays the operation result. After calculation of the mean number, item counter are cleared. Example a (+) b (+) c (+) d (+) e (+) f (+) g (+) (*) Addition to total addition/subtraction register (R) Displays or prints addition/ subtraction register. (IC/AVE) (R) Displays the item counter (IC/AVE) (R) Displays or prints (a + b + c + d + e + f + g)/7 The even if IC-value is a negative, the calculation of the mean number. Example (*) (R) Displays or prints addition/ a (-) Addition to total subtraction register. b (-) addition/subtraction (IC/AVE) (R) Displays the item counter c (+) register (IC/AVE) (R) Displays or prints d (-) (-a - b + c - d)/1/241/2 (IC+) (-a - b + c - d)/1/2 -21/2 (IC) 11 2003-03-04 TC83230-0015 [DEC].................... Switches the decimal point. At reset, floating point (F) is set. Switches the mode in each time when the [DEC] key is pressed as follows: F (R) 0 (R) 1 (R) 2 (R) 3 (R) 4 (R) 6 (R) A (R) AII (R) F (R) 0 (R) 1. Displays the specified decimal point or add mode. Valid only when the [ /L ] lock key is off. (3) Explanation of lock keys [0, 1, 2, 3].............. Sets the specified decimal point. If no specification, floating is set. [4, 6, A, AII] When processing floating point data, the operation result is zero-shifted. When A mode is specified, key-entered data are multiplied by 1/100 only when the key-entered numerical value is used for addition/subtraction or memory addition/subtraction. If the [] key is pressed during data entry, A mode is invalid. The operation result is treated the same as the specified decimal point, 2. When AII mode is specified, key-entered data are multiplied by 1/100 only when the key-entered numerical value is used for multiplication/division by [=] key. If the [] key is pressed during data entry, AII mode is invalid. The operation result is treated the same as the specified decimal point, 2. [CUT, UP] ............ Rounds-off in CUT mode; rounds-up in UP mode; when no specification is made, half-adjusts. When a decimal point is specified, the digit (s) in the subsequent decimal place is (are) half-adjusted, rounded-off, or rounded-up (??). If floating point is specified, the value of the least significant digits which cannot be displayed is rounded off. [ P/ NP ] ................. Switches between print and non print mode. When [ P/ NP ] lock key is off, disables all printing except [PF] or [#/P] key. When mode changes from non-print to print, feeds the paper one line. [IC+]...................... Selects item count mode. [IC] IC+.........Counts up by the [+] or [-] key. IC.........Counts up by the [+] key, down by the [-] key. [S] ......................... If an operation is performed by the [=] or [%] key in auto accumulation calculation mode, adds the operation result to the addition/subtraction register and increments the item counter. [GT] ...................... In grand total mode, adds the total register to the GT register by the [*] key. [ /L ] .................... When the [ /L ] lock key is off, the [P/NP], [S], [GT MOD], [IC MOD], [RND], and [DEC] keys are valid. When the [ /L ] key is on, the [NP], [S], [GT], [IC+], [IC], [CUT], [UP], and [0, 1, 2, 3, 4, 6, A, AII] lock keys are valid. SETI ................. When the [SETI/SETII] lock key is on, prints and express the stored tax rate. SETII When the [SETI/SETII] lock key is off, store the expression data to the new tax rate. The result of tax rate is only floating-point, and not consent the decimal-point at this function. [FEED] ................. Feed paper. [TMR] ................... When the [TMR] lock key is on, auto power-off functions. (after approx. 6 minutes.) [2 TAX] ................. Switches between single tax and double tax mode. When the [2 TAX] lock key is on, one tax rate can be set. (SETII and TAXII will be disabled.) When the [2 TAX] lock key is off, two tax rates can be set. [2 M] ..................... Selects single memory or double memory mode. When the [2 M] lock key is on, one memory can be used. (MII will be disabled.) When the [2 M] lock key is off, two memories can be used. 12 2003-03-04 TC83230-0015 (4) ON, OFF key [ON] ...................... If pressed in HOLD mode, cancels HOLD. At that time, cancels all arithmetic instructions and errors. The contents of the memory register and the TAX RATE before HOLD mode are retained; all other registers are cleared. While the [ON] key is pressed, the [OFF] key is invalid. [OFF] .................... Forcibly enters HOLD mode (CPU sleep mode). Operation Example Key F F 4/5 IC S GT MOD 10/12 2 TAX 2 M 12 ON Touch Print Display 4/5 OFF OFF OFF CAL ON POWER**ON F 4/5 IC+ OFF OFF CAL 12 ON ON *IC/AVE* Note 2: 13 2003-03-04 TC83230-0015 Key F F 4/5 IC S GT MOD 10/12 2 TAX 2 M 12 ON Touch Print 3.* 4.* 4.* = 3.* * 4/5 OFF OFF OFF CAL ON *3** *4** *=* * * *5** *6*%* * * *+* Note 2: 14 2003-03-04 TC83230-0015 Key F F 4/5 IC S GT MOD 10/12 2 TAX 2 M 12 ON Touch Print 3.* 4.* 4.* = 3.* + 4/5 OFF S OFF CAL ON ***3** ***4** ***=* Note 2: 15 2003-03-04 TC83230-0015 Key F F 4/5 IC S GT MOD 10/12 2 TAX 2 M 12 ON Touch Print ------1------* M * *5* *MII+* ------2------* M * *MI* 5.* + ------1------* M * *MI** -7.* ------1------* M* * * *MII* -7.* * 4/5 OFF S OFF CAL ON *MI+* Note 2: 16 2003-03-04 TC83230-0015 Key F F 4/5 IC S GT MOD 10/12 2 TAX 2 M 12 ON ON Touch Print ------1------* 3.* % CUT OFF OFF OFF SETI F F CUT OFF OFF OFF CAL CUT OFF OFF OFF SETII 12 12 ON ON ON ON ------2------* 0.* % *5* F CUT OFF OFF OFF CAL 12 ON ON *C 0.* C F CUT OFF OFF OFF SETII 12 ON ON ------2------* 5.* % F CUT OFF OFF OFF CAL 12 ON ON Note 2: 17 2003-03-04 TC83230-0015 Key F F 4/5 IC S GT MOD 10/12 2 TAX 2 M 12 ON Touch Print ------1------* 78,900.* = 123084000.* % 3692520.* 126776520.* * 4/5 OFF OFF OFF CAL ON *+TAXI* Note 2: 18 2003-03-04 TC83230-0015 Key F F 4/5 IC S GT MOD 10/12 2 TAX 2 M 12 ON Touch Print ------1------* 2793.00* % 83.79* 2876.79* * CUT OFF OFF OFF CAL ON *+TAXI* Note 2: 19 2003-03-04 TC83230-0015 Key F 4/5 IC S GT MOD 10/12 2 TAX 2 M Touch *1560* *-TAXII* Print * ------2------* 1560.* % -74.28571429* 1485.71428571* * Note 2: 20 2003-03-04 TC83230-0015 Key F F 4/5 IC S GT MOD 10/12 2 TAX 2 M 12 ON ON Touch Print ------2------* 0.* % CUT OFF OFF OFF CAL Note 2: 21 2003-03-04 TC83230-0015 Maximum Ratings (VSS = 0 V) Characteristics Supply voltage 1 Supply voltage (LCD drive) Input voltage Output voltage Output current Power dissipation Soldering temperature Storage temperature Operating temperature Symbol VDD VLC VIN VOUT IOUT PD Tsld Tstg Topr Rating -0.3~6 -0.3~VDD + 0.3 -0.3~VDD + 0.3 -0.3~VDD + 0.3 3.2 600 260 (10 s) -55~125 0~40 Unit V V V V mA mW C C C Electrical Characteristics Recommended Operating Conditions (VSS = 0 V, Topr = 0~40C) Characteristics Operating temperature Symbol Topr Test Circuit 3/4 3/4 Supply voltage VDD 3/4 3/4 High-level input voltage (non-schmitt circuit) High-level input voltage (schmitt circuit) High-level input voltage Low-level input voltage (non-schmitt circuit) Low-level input voltage (schmitt circuit) Low-level input voltage VIH1 3/4 VIH2 VIH3 VIL1 3/4 VIL2 VIL3 3/4 VDD < 4.5 V VDD > 4.5 V = 0 0 3/4 VDD < 4.5 V VDD > 4.5 V = NORMAL SLOW HOLD Test Condition 3/4 Min 0 4.5 2.0 VDD 0.7 VDD 0.75 VDD 0.9 0 VDD V Max 40 Unit C 5.5 V VDD VDD VDD 0.3 VDD 0.25 VDD 0.1 V V V V V 22 2003-03-04 TC83230-0015 DC Characteristics (VSS = 0 V, Topr = 0~40C) Characteristics Hysteresis voltage (schmitt circuit) Symbol VHS IIN1 Input current IIN2 RIN1 RIN2 ILO1 Output leakage current ILO2 3/4 Source Open Drain R port, P port Source Open Drain R port, P port Sink Open Drain R port 3/4 3/4 3/4 3/4 Test Circuit 3/4 3/4 Terminal Hysteresis Input KO port, TEST, RESET , HOLD Open Drain R port, P port KO port TEST with Input Resistor RESET , HOLD Test Condition 3/4 Min 3/4 Typ. 0.7 Max 3/4 Unit V VDD = 5.5 V VIN = 5.5/0 V VDD = 5.5 V VIN = 5.5/0 V VDD = 5.5 V VOUT = 5.5 V VDD = 5.5 V VOUT = -1.5 V VDD = 5.5 V IOH = -1.6 mA VDD = 5.5 V IOL = 1.6 mA VDD = 5.5 V VIN = 5.5 V 3/4 3/4 2 mA Input resistance 30 100 3/4 70 220 3/4 150 450 2 kW Sink Open Drain R port mA 3/4 3/4 -2 High-level output voltage VOH 3/4 2.4 3/4 3/4 V Low-level output voltage VOL 3/4 3/4 3/4 0.4 V Pull-down resistance ROUT ROS ROC VO2/3 3/4 3/4 3/4 R port, P port SEG COM 30 70 150 kW Output resistance 3/4 VDD = 5 V VDD - VLC = 3 V 3.8 3.3 2.8 3/4 4.0 3.5 3.0 3 0.5 35 4.2 3.7 3.2 6 10 kW Output voltage VO1/2 VO1/3 3/4 SEG/COM V Supply current (normal) Supply current (hold) IDD IDDH 3/4 3/4 3/4 3/4 VDD = 5.5 V, VLC = VSS fc = 4 MHz VDD = 5.5 V 3/4 3/4 mA mA Note 3: Typ. values are guaranteed at Topr = 25C, VDD = 5 V. Note 4: IIN1: Excepts a current through a internal pull up/down resistor. Note 5: ROS, ROC: Shows on-resistor at level switching. Note 6: VO2/3: Shows 2/3 level output voltage at which 1/4 or 1/3 duty LCD drive. Note 7: VO1/2: Shows 1/2 level output voltage at which 1/2 duty or static LCD drive. Note 8: VO1/3: Shows 1/3 level output voltage at which 1/4 or 1/3 duty LCD drive. Note 9: IDD, IDDH: Current consumption at VIN = 5.3 V/0.2 V Should be under that KO port is open and R port voltage level is valid. 23 2003-03-04 TC83230-0015 Oscillation Circuit (VSS = 0 V, VDD = 4.5~5.5 V, Topr = 0~40C) Recommended Circuit Test Condition Min Typ. Max Unit VDD = 5.0 V C = 100 pF R = 1 kW 2% 2.4 4.0 5.6 MHz AC Characteristics (VSS = 0 V, VDD = 4.5~6.0 V, Topr = 0~40C) Characteristics Instruction cycle time High-level clock pulse width Low-level clock pulse width Shift data hold time High speed timer/counter input frequency Symbol tCY tWCH tWCL tSDH fHT Test Circuit 3/4 3/4 3/4 3/4 3/4 3/4 Test Condition NORMAL SLOW External Clock Operation 3/4 3/4 Min 1.9 235 80 0.5 tcy - 300 3/4 Typ. 3/4 3/4 3/4 3/4 3/4 Max 20 267 3/4 3/4 fc Unit ms ns ns ns MHz 24 2003-03-04 TC83230-0015 Waveforms for Display 25 2003-03-04 TC83230-0015 The Proposal of Outer Circuit for Tax Rate Holding with Back-Up Battery. Note 10: V1 = +3 V: Battery supply V2 = +5 V: DC supply HOLD pin is pulled down in the LSI, but normally pulled up to VDD. RESET pin is pulled up to VDD. (1) Setting POWER SW to ON, V2 is supplied to VDD pin, and also to HOLD pin. Then calculator operates normally. Setting POWER SW from ON to OFF, V1 is supplied to VDD pin and VSS is supplied to HOLD pin. Under this connection, TAX RATE is held. Setting POWER SW to ON, V2 is supplied to VDD pin, and also to HOLD pin. Then calculator operates normally with TAX RATE to be held. (2) (3) Note 11: V1 (battery) should be supplied to the circuit after V2 (DC) supply, because of prevention from exhaustion of battery and abnormal operation. 26 2003-03-04 TC83230-0015 Package Dimensions Weight: 1.52 g (typ.) 27 2003-03-04 TC83230-0015 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. 28 2003-03-04 |
Price & Availability of TC83230-0015
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