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1 * this specification are subject to be changed without notice. EM34006A 10/12 digit calculator 12.23.1996 general description the EM34006A is a single-chip lsi cmos calculator with 12-digits 2-memory or 10-digits 2-memory. EM34006A can drive the liquid crystal display (lcd) with single power supply. single power supply operation, wide operating voltage and lower power consumption make it suitable for 1.5v solar battery operated calculator. beside EM34006A can have extraction_of_square_root, percentage, mu calculation and auto power off function. features ? display : 12-digit or 10-digit (selectable with a pin-programmable) of data, 1-digits of sign, error, memory load symbol. ? algebraic mode. ? standard 4 function (addition, subtraction, multiplication, division). ? memory and grand total calculation. ? automaic perecentage operation with add-on discount. ? automaic delta percentage, mark-up and mark-down operations. ? square root. ? constant calculation. ? chain calculation. ? change sign. ? floating point (selectable with a switch). ? fixed point ("0", "2", "3", "4" selectable with a switch). ? adding point mode(selectable with a switch). ? rounding switch(rounding up, down and off). ? trailing zero suppression. ? punctuation on display, commas for thousands. ? memory and gt memory contents indicator, turned with nonzero in the memory and gt memory. ? registration overflow, indicating 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. ? complementary output buffer for direct driving of liquid crystal display. ? oscillator/clock generator internal to chip. ? keyboard encoding internal to chip. ? automaic power on clear. ? wide supply voltage range (1.1 to 1.8v) ? very low power consumption. ? rough estimate calculation. EM34006A 10/12 digit calculator
* this specification are subject to be changed without notice. EM34006A 10/12 digit calculator 2 12.23.1996 pin descriptions symbol i/o function a12 o segment signal of lcd b12 o segment signal of lcd gnd ground va ** vb ** v cc ** v dd +1.5v ts1 i/o test pin ki i/o on key k1 o key in 1 k2 o key in 2 k3 i/o key in 3 k4 i/o key in 4 k5 i/o key in 5 k6 i/o key in 6 k7 i/o key in 7 k8 i/o key in 8 k9 i key in 9 k10 i key in 10 k11 i key in 11 k12 i key in 12 k13 key in 13 k14 key in 14 com1 o common signal 1 com2 o common signal 2 com3 o common signal 3 a0 o segment signal of lcd b0 o segment signal of lcd c0 o segment signal of lcd b0 o segment signal of lcd c0 o segment signal of lcd a1 o segment signal of lcd b1 o segment signal of lcd c1 o segment signal of lcd a2 o segment signal of lcd b2 o segment signal of lcd c2 o segment signal of lcd a3 o segment signal of lcd b3 o segment signal of lcd c3 o segment signal of lcd a4 o segment signal of lcd b4 o segment signal of lcd
3 * this specification are subject to be changed without notice. EM34006A 10/12 digit calculator 12.23.1996 c4 o segment signal of lcd a5 o segment signal of lcd b5 o segment signal of lcd c5 o segment signal of lcd a6 o segment signal of lcd b6 o segment signal of lcd c6 o segment signal of lcd a7 o segment signal of lcd b7 o segment signal of lcd c7 o segment signal of lcd a8 o segment signal of lcd b8 o segment signal of lcd c8 o segment signal of lcd a9 o segment signal of lcd b9 o segment signal of lcd c9 o segment signal of lcd a10 o segment signal of lcd b10 o segment signal of lcd c10 o segment signal of lcd a11 o segment signal of lcd b11 o segment signal of lcd c11 o segment signal of lcd * capacitor teminal for voltage doubling symbol i/o function function descriptions a). operation characteristics a). constant operation the em34006 has implied constant mode on +, -, x, ? , % 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. b). number entry numbericals can be entered up to 12-digit (10-digit). c). memory protection in any error detection, the memory contents before the error detection are protected. d). memory indication if the memory contents are a number other than zero, "m" is indicated in the sign-digit position.
* this specification are subject to be changed without notice. EM34006A 10/12 digit calculator 4 12.23.1996 e). auto power off if no key is depressed for a specific period of time, the power supply will automatically turn off (pin option). this time interval up to power-off is 4 mins. f). key definition i). touch key constitution ii). switchs k11: selectable with fixed point. k12 : rounding switchs for mode select. f : floating cut, up, 5/4 : round select. on/ac ki ce c % off x - + +/- mc mr mrc m- m+ 9 8 7 6 gt = k10 k9 k8 k7 k6 k5 k4 k3 k2 k1 5 4 3 2 1 00 mu 0 b2 a2 c1 b1 a1 b0 a0 k12 k11 f cut up 5/4 4 320 add2
5 * this specification are subject to be changed without notice. EM34006A 10/12 digit calculator 12.23.1996 b). keyboard descripion a). equal key (=) i). performs keyed-in operation and maintains that operation for possible use. ii). establishes power/reciprocation calculation. b). multiplication key (x) i). enters multiplicand. ii). performs previous operation and displays result. c). division key ( ? ) i). enters dividend. ii). performs previous operation and displays result. d). addition key (+) i). conditions machine for an addition. ii). performs previous operation and displays result. e). subtraction key (-) i). conditions machine for a subtraction. ii). performs previous operation and displays result. f). 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. g). change sign key (+/-) pushing the "+/-" key twice in succession causes the corresponding sign to appear and disappear. during digit entry, this function changes the sign of the entered factor. h). power on/all clear key (on/ac) i). a push will power on the calculation or clear all operation register. i) clear key (c) i). during the digit entry, the first depression will clear all except memory contents. j). clear entry key (ce) during the digit entry will clear the entry register and display number "0". k). square root key ( ? ) extracts the square root of a positive number displayed in the entry register. l). memory plus key (m+) i). adds the current display to the contents of memory. ii). it will terminate a number entry.
* this specification are subject to be changed without notice. EM34006A 10/12 digit calculator 6 12.23.1996 m). memory minus key (m-) i). subtracts the current display from the contents of memory ii). it will terminate a number entry. n). memory recall and clear key (rcm) i). first push, as rm key, transfers the contents of the memory register into the display register. ii).second push, as cm key, clears the memory. o). 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 13 digits or 11decimal places will be ignored. p). ground total memory key (gt) i). push gt key, transfers the contents of the gt memory register. ii).gt flag is released by ac or c key. q). shift key ( ? ) delete the rightest digit and others will shift to right. r). off key (off) turn off the power. c). selection mode switch functions 10-digit/12-digit mode depends on k11 pin, please refer to application circuit. fixed/floating decimal point mode and add2 mode are selected by rounding switch. the rounding switch should be so composed that either one of 4, 3, 2, 0, add2 is selected. a). fix"f" mode when tab "f" is selected, both entered numbers and calculation results follow to floating decimal point system. b). dp i=0, 2, 3, 4 mode the calculation results follow to fixed decimal point system and i +1 decimal place is counted by "cut", "up", "5/4". c). fix "cut" mode the number of i +1 decimal position is counted as cuting away. d). fix "up" mode the number of i decimal position is counted as added to "1", e). fix "5/4" mode when a number of i + 1 decimal position is more than 0.5, the number of i decimal position is counted as added to "1". f). add2 mode when "+" and "-" operation are performed after a number except decimal point is entered. the calculation is executed as 1/100 value of number being entered. c). key bounce protection ? front edge minmum=50 words ? trailing edge
7 * this specification are subject to be changed without notice. EM34006A 10/12 digit calculator 12.23.1996 minmum=66 words 1 word=88.75 m s when operating frequency fd=469 hz e). basic function fixed point mode calculations switch mode fix dp sw key display key display 5/4 0 ac 2 ac 0 25 ? 3 1.67 1 ? 3 0.33 3 = 1.667 = 0.333 4 1.6667 0.3333 cut 0 ac 1 ac 0 25 ? 3 1.66 1 ? 3 0.33 3 = 1.666 = 0.333 4 1.6666 0.3333 up 0 ac 2 ac 1 25 ? 3 1.67 1 ? 3 0.34 3 = 1.667 = 0.334 4 1.6667 0.3334 adding point mode calculations switch mode fix dp sw key display key display don't care add2 ac 0 678 678 except fix "f" 531 531 m+ -2.91 + 5.31 235 235 23 23 + 2.35 = 5.54 987 987 387 387 m- 12.22 - 3.87 mr -15.13 floating point mode calculations switch mode fix dp sw key display f don't care ac gt 1.66666666666 12 digit 5 ? 3 gt 1.666666666 10 digit = ac gt 0.33333333333 12 digit 1 ? 3 gt 0.333333333 10 digit =
* this specification are subject to be changed without notice. EM34006A 10/12 digit calculator 8 12.23.1996 constant calculations multiplication division key display constant key display constant kk kk xk ? k xk ? k aa aa = k?a kx = a/k ? k bb kx bb ? k = k?b kx = b/k ? k addition subtraction key display constant key display constant kk kk +k - k +k - k aa aa = a+k +k = a-k -k bb +k bb -k = b+k +k = b-k -k percentage percentage key display constant key display constant kk kk xk ? k xk ? k aa aa % k?a/100 kx % 100?a/k ? k bb kx bb ? k % k?b/100 kx % 100?b/k ? k add-on, discount calculations add-on discount key display key display aa aa xa xa bb bb % a?b/100 % a?b/100 + a(1+b/100) - a(1-b/100)
9 * this specification are subject to be changed without notice. EM34006A 10/12 digit calculator 12.23.1996 f). additional calculations power calculations (4.2 3 ) 2 =4.2 6 fix=f 4.2 x x = = x = gt 5 489.031744 inverse number calculation 1/7=0.142857 ..... fix=f 7 ? ? = = gt 0.14285714285 root calculation 5 ? = 2.2360679 .... fix=f 5 ? gt 2.23606797749 memory calculation 35 x 6 = 210 fix=f -) 76 ? 8 = 9.5 mc 35 x 6 m+ m210 +) 25 + 17 = 42 76 ? 8 m- m 9.5 242.5 25 + 17 m+ m42 rm m 242.5 gt memory calculation (35x6) + (76 ? 8) + (25 + 17) = 267.5 fix=f ac 36 x 6 = gt 216. 76 ? 8 = gt 9.5 25 + 17 = gt 42.0 gt gt 267.5 fix=f key key dispaly 999999999999 = gt 999999999999. 5 + gt 5. 3 = gt e 0. system error mark-up, mark-down calculation addition subtraction key display key display aa aa +a -a bb bb mu 100 ((a+b)/b) mu 100 ((a+b)/b) mu a+b mu a-b
* this specification are subject to be changed without notice. EM34006A 10/12 digit calculator 10 12.23.1996 multiplication key display key display aa aa xa xa bb bb mu a(1+b/100) +/- -b mu |ab/100| mu a(1-b/100) mu |ab/100| division key display key display aa aa ? a-a bb bb mu a(1-b/100) +/- a/(1+b/100) mu |a/(1-b/100)-a| mu |a/(1+b/100)-a| g). error conditions a). error detections ( parenthesis is in case of 10 digit) system errors occur when : i) the division by zero. ii) the integral part of any memory calculation results exceeds 12 (10) digits. iii)the integral part of gt memory contents exceeds 12 (10) digits. rough estimate calculation error the integral part of any calculation-four standard function, %, square, or power calculation result exceeds 12 digits (10 digits). b). error indication i) system error: a) zero is displayed at first-digit and "e" sign is indicated at symbol. ii) rough estimate calculation error the high-order 12-digit (10 digits) of any calculation result is indicated with "e" sign and the decimal point is displayed at the position corresponding to 10 -12 (10 -10 ) of the calculation result also no zero shift is performed. c). error release system error: released by ac, c, ce key.
11 * this specification are subject to be changed without notice. EM34006A 10/12 digit calculator 12.23.1996 h). lcd display a). inter connection of lcd i). select of 10-digits ii). select of 12-digits 1) segment 2) common 1) segment 2) common x - + b12 a12 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 c0 b0 a0 com1 com3 com2 b12 a12 c11 b11a11 c10 b10 a10 c9 b9 a9 c8 b8 a8 c7 b7 a7 c6 b6 a6 c5 b5 a5 c4 b4 a4 c1 b1 a1 c0 b0 a0 com1 com3 com2 c3 b3 a3 c2 b2 a2 x - + x - + x - +
* this specification are subject to be changed without notice. EM34006A 10/12 digit calculator 12 12.23.1996 e). waveforms for display when f0=18 khz t=1/93.8 hz t1=3.56 ms t t1 v ee =3v v dd =1.5v gnd v ee =3v gnd +3v +1.5v 0v -1.5v -3v +1.5v 0v -1.5v +3v +1.5v 0v -1.5v -3v com3 com1 com2 segment a1 a1-com3 (on) a1-com2 (off) a1-com1 (on) off on off on off on off off on off on off
13 * this specification are subject to be changed without notice. EM34006A 10/12 digit calculator 12.23.1996 absolute maximum ratings items sym. min. max. unit supply voltage v dd -v ss -0.3 2.0 v input voltage vin -0.3 v dd +0.3 v operating temperature top 0 50 c storage temperature tstg -55 +125 c electrical characteristics (v dd =1.5v 0.2v, gnd=0v, t a =25 c, v ee =3.0 0.4v) parameter name sym. min. typ. max. unit condition operating voltage - v dd 1.1 1.5 1.8 v "1" input voltage k3~k10 v ih (1) v dd -0.4 - v dd v reset "1" input voltage k11~k14 v ih (2) v ee -0.4 - v ee v "0" input voltage k3~k14 v il 0 - 0.4 v reset "1" output voltage segment v oh (1) v ee -0.2 - v ee v com1~3 "o" output voltage segment v ol (1) 0 - 0.2 v com1~3 "m" output voltage com1~3 v om v dd -0.2 - v dd +0.2 v "1" output voltage k1~k10 v oh (2) v dd -0.2 - v dd v "0" output voltage k1~k14 v ol (2) 0 - 0.2 v "1" output resistance segment r oh - - 70 k w v out =v ee -0.5v com1~3 "0" output resistance segment r ol - - 70 k w v out =0.5v com1~3 key pull down k1~k10 r keyl (1) 240 - 650 k w v out =v dd resistance key pull up k1~k10 r keyh (1) - - 10 k w v out =0.5v resistance reset r keyh (2) 50 - 370 k w v out =0.5v oscillating (wait) f0 wait 10.8 18.0 25.2 khz v dd =1.5v frequency (operate) f0 op 57.6 96.0 134.4 khz v dd =1.5v frame frequency segment f f 56.3 93.8 131 hz v dd =1.5v com1~3 supply 1(wait) i ddwait - 2.2 3.4 m av dd =1.5v current 2(operate) i ddop - 7.0 11.0 m av dd =1.5v 3(off) i ddoff - - 1.0 m av dd =1.5v
* this specification are subject to be changed without notice. EM34006A 10/12 digit calculator 14 12.23.1996 application circuit 42 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 62 63 64 65 66 67 68 1 2 3 4 5 6 7 9 11 12 13 14 15 16 17 18 19 20 21 22 23 24 a4 b4 c4 a5 b5 c5 a6 b6 c6 a7 b7 c7 a8 b8 c8 a9 b9 c3 b3 a3 c2 b2 a2 c1 b1 a1 c0 b0 z0 com3 com2 com1 c9 a10 b10 c10 a11 b11 c11 a12 b12 v ss v a v b v cc v dd ki k1 k2 k3 k4 k5 k6 k7 k8 k9 k10 k11 k12 nc nc c + m+ 6 = ce 00 - m- 7 mu x mrc 8 gt 1 mr 9 2 off +/- mc 3 % 45 k3 k2 k1 k10 k9 k8 k7 k6 k5 k4 on/ac sb 4 320 add2 f cut up 5/4 sw1 sw2 b2 a2 c1 b1 a1 b0 a0 segment segment common lcd EM34006A cb ca 33? + - d1 15k the dotted line used for 12 digits system reset ki bare chip 10/12 digits selectable 0 sw condition digi 12 10 sw1 on off sw2 off on note k11 : selectable with fixed point. k12 : rounding switches for mode select d1 : led for constant voltage control sb : solar battery ca, cb : 0.1?
15 * this specification are subject to be changed without notice. EM34006A 10/12 digit calculator 12.23.1996 pad diagram pad no. symbol x y 1 a12 83.8 1297.6 2 b12 -60.2 1297.6 3 gnd -204.2 1297.6 4 va -348.2 1279.1 5 vb -492.2 1279.1 6 vcc -636.2 1262.1 7 vdd -806.3 1261.4 8 ts1 -953.9 1262.8 9 kl -1097.9 1272.6 10 11 k1 -1063.1 1009.4 12 k2 -1063.1 860.0 13 k3 -1063.1 709.3 14 k4 -1063.1 559.9 15 k5 -1063.1 409.2 16 k6 -1063.1 259.8 17 k7 -1063.1 109.2 chip size : 2520x 2930 m m 63 64 65 66 1 2 3 4 5 6 62 (0,0) 27 28 29 30 31 32 33 34 36 37 38 39 40 41 42 46 47 48 49 50 51 52 53 54 55 56 57 58 59 68 67 7 8 9 11 12 13 14 15 16 17 18 19 20 21 22 23 k1 k2 k3 k4 k5 k6 k7 k8 k9 k10 k11 k12 k13 k14 com3 com2 com1 a3 c2 b2 a2 c1 b1 a1 c0 b0 a0 b3 c3 a4 c4 a5 b5 c5 a6 b6 a7 b7 c7 a8 b8 c8 a9 b9 c9 kl a11 b11 c11 a12 b12 c10 a10 b10 gnd va vb v cc v dd ts1 EM34006A 24 35 45 60 c6 b4
* this specification are subject to be changed without notice. EM34006A 10/12 digit calculator 16 12.23.1996 pad no. symbol x y 18 k8 -1063.1 -40.2 19 k9 -1092.7 -187.6 20 k10 -1092.7 -337.0 21 k11 -1045.3 -482.8 22 k12 -1045.3 -638.3 23 k13 -1045.3 -782.3 24 k14 -1045.3 -937.8 25 26 27 com1 -1097.9 -1309.9 28 com2 -953.9 -1309.9 29 com3 -809.9 -1309.9 30 a0 -634.6 -1309.9 31 b0 -490.6 -1309.9 32 c0 -346.6 -1309.9 33 a1 -202.6 -1309.9 34 b1 -58.6 -1309.9 35 c1 85.4 -1309.9 36 a2 229.4 -1309.9 37 b2 373.4 -1309.9 38 c2 517.4 -1309.9 39 a3 661.4 -1309.9 40 b3 805.4 -1309.9 41 c3 949.4 -1309.9 42 a4 1093.4 -1309.9 43 44 45 b4 1099.9 -1104.7 46 c4 1099.9 -960.7 47 a5 1099.9 -816.7 48 b5 1099.9 -672.7 49 c5 1099.9 -528.7 50 a6 1099.9 -384.7 51 b6 1099.9 -240.7 52 c6 1099.9 -96.7 53 a7 1099.9 47.3 54 b7 1099.9 191.3 55 c7 1099.9 335.3 56 a8 1099.9 479.3 57 b8 1099.9 623.3 58 c8 1099.9 767.3 59 a9 1099.9 911.3 60 b9 1099.9 1055.2
17 * this specification are subject to be changed without notice. EM34006A 10/12 digit calculator 12.23.1996 61 62 c9 1091.8 1297.6 63 a10 947.8 1297.6 64 b10 803.8 1297.6 65 c10 659.8 1297.6 66 a11 515.8 1297.6 67 b11 371.8 1297.6 68 c11 227.8 1297.6 pad no. symbol x y

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