1 * this specification are subject to be changed without notice. em22700a series 6/12/16/20/30/40/60 sec. voice/melody synthesizer with tiny controller 5.28.1998 - easy sound em22700a series 6/12/16/20/30/40/60 sec. voice/melody synthesizer with tiny controller general description em22700a is a series of 6 to 60 seconds single chip voice/dual tone synthesizer ic which contains 1 4-bit input port, 2 4-bit i/o ports and a tiny controller. by programming through the tiny controller, users application includes section combination, trigger mode, control outputs ,keyboard matrix and other logic function can be easily implemented. features ? single power supply 2.4 v - 5 v. ? 6-60 seconds voice capacity is provided for em22706a,em22712a,EM22716A ,em22720a, em22730a, em22740a and em22760a. ? dual tone melody generator is provided. ? 1 4-bit input port , 2 4-bit i/o ports and 32*4 bits ram are provided. ? maximum 8 k program rom is provided. ? one 6 bit timer overflow control is provided. ? 4 playing speed for voice playing 5k,6k,7k,8k hz are provided. ? several tempos for dual tone melody playing are provided. ? 8 different beats for dual tone melody playing are provided. ? 8 steps of volume control are provided. ? fixed current d/a output is provided to drive external connected transistor for voice output. pin assignments pdip-28 pin em22706a em22712a EM22716A em22720a em22730a em22740a em22760a nc nc nc nc nc nc vo p3.3 p3.2 p3.1 p3.0 p2.3 p2.2 p2.1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 24 23 22 21 20 19 18 17 16 15 nc nc nc nc nc v dd test osc gnd p1.0 p1.1 p1.2 p1.3 p2.0 easy sound -
* this specification are subject to be changed without notice. em22700a series 6/12/16/20/30/40/60 sec. voice/melody synthesizer with tiny controller 2 5.28.1998 - easy sound electrical characteristics parameter sym. min. typ. max. unit condition operating voltage v dd 2.4 3.0 5.1 v standby current i dds - - 1.0 m av dd =3v operating current i ddo - 250 - m av dd =3v,no load drive current of p2,p3 i od 1.0 - - ma v dd =3v,vo=2.4v sink current of p3 i os 1.6 - - ma v dd =3v,vo=0.4v input current of p2 i ih2 - 3.0 10.0 m av dd =3v output current of vo i vo 2.0 3.0 4.0 ma v dd =3v,vo=0.7v(step 7) oscillation resistor r - 1.0 - m w v dd =3v oscillation freq. f osc - 1.0 - mhz v dd =3v absolute maximum ratings items sym. min. max. unit supply voltage v dd -v ss - 0.3 6.0 v input voltage v in v ss -0.3 v dd +0.3 v operating temperature t opr 050 c storage temperature t str -55 +125 c pin descriptions symbol i/o function description p1.0 i bit 0 of port 1. p1.1 i bit 1 of port 1. p1.2 i bit 2 of port 1. p1.3 i bit 3 of port 1. p2.0 i/o bit 0 of port 2. p2.1 i/o bit 1 of port 2. p2.2 i/o bit 2 of port 2. p2.3 i/o bit 3 of port 2. p3.0 i/o bit 0 of port 3. p3.1 i/o bit 1 of port 3. p3.2 i/o bit 2 of port 3. p3.3 i/o bit 3 of port 3. v dd i positive power supply. osc i oscillation component connection pin. test i for testing only. v ss i negative power supply. vo o voice output.
3 * this specification are subject to be changed without notice. em22700a series 6/12/16/20/30/40/60 sec. voice/melody synthesizer with tiny controller 5.28.1998 - easy sound pad diagram pad no. symbol x y 7 vo -1222.1 216.1 8 p3.3 -1236.0 -680.1 9 p3.2 -1058.5 -881.0 10 p3.1 -839.2 -881.0 11 p3.0 -617.5 -881.0 12 p2.3 -383.4 -881.0 13 p2.2 -161.6 -881.0 14 p2.1 85.5 -881.0 15 p2.0 307.3 -881.0 16 p1.3 536.9 -886.4 17 p1.2 724.5 -886.4 18 p1.1 933.5 -886.4 19 p1.0 1243.1 -779.6 20 gnd 1255.7 -553.6 21 osc 1243.1 -109.2 22 test 1243.1 78.4 23 v dd 1202.4 250.7 chip size : 2800 x 2090 m m 7 em22706a 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 vo p3.3 p3.2 p3.1 p3.0 p2.3 p2.2 p2.1 p2.0 p1.3 p1.2 p1.1 p1.0 gnd osc test vdd (0,0)
* this specification are subject to be changed without notice. em22700a series 6/12/16/20/30/40/60 sec. voice/melody synthesizer with tiny controller 4 5.28.1998 - easy sound 7 em22712a 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 vo p3.3 p3.2 p3.1 p3.0 p2.3 p2.2 p2.1 p2.0 p1.3 p1.2 p1.1 p1.0 gnd osc test vdd (0,0) chip size : 2800 x 2370 m m pad no. symbol x y 7 vo -1222.1 76.0 8 p3.3 -1236.0 -820.2 9 p3.2 -1058.5 -1021.0 10 p3.1 -839.2 -1021.0 11 p3.0 -617.5 -1021.0 12 p2.3 -383.4 -1021.0 13 p2.2 -161.6 -1021.0 14 p2.1 85.5 -1021.0 15 p2.0 307.3 -1021.0 16 p1.3 536.9 -1026.4 17 p1.2 724.5 -1026.4 18 p1.1 933.5 -1026.4 19 p1.0 1243.1 -919.6 20 gnd 1255.7 -693.6 21 osc 1243.1 -249.2 22 test 1243.1 -61.6 23 v dd 1202.4 110.6
5 * this specification are subject to be changed without notice. em22700a series 6/12/16/20/30/40/60 sec. voice/melody synthesizer with tiny controller 5.28.1998 - easy sound chip size : 2800 x 2730 m m pad no. symbol x y 7 vo -1222.1 -103.9 8 p3.3 -1236.0 -1000.2 9 p3.2 -1058.5 -1201.0 10 p3.1 -839.2 -1201.0 11 p3.0 -617.5 -1201.0 12 p2.3 -383.4 -1201.0 13 p2.2 -161.6 -1201.0 14 p2.1 85.5 -1201.0 15 p2.0 307.3 -1201.0 16 p1.3 536.9 -1206.4 17 p1.2 724.5 -1206.4 18 p1.1 933.5 -1206.4 19 p1.0 1243.1 -1099.6 20 gnd 1255.7 -873.6 21 osc 1243.1 -429.2 22 test 1243.1 -241.6 23 v dd 1202.4 -69.4 7 EM22716A/em22720a 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 vo p3.3 p3.2 p3.1 p3.0 p2.3 p2.2 p2.1 p2.0 p1.3 p1.2 p1.1 p1.0 gnd osc test vdd (0,0)
* this specification are subject to be changed without notice. em22700a series 6/12/16/20/30/40/60 sec. voice/melody synthesizer with tiny controller 6 5.28.1998 - easy sound 7 em22730a 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 vo p3.3 p3.2 p3.1 p3.0 p2.3 p2.2 p2.1 p2.0 p1.3 p1.2 p1.1 p1.0 gnd osc test vdd (0,0) chip size : 2800 x 3160 m m pad no. symbol x y 7 vo -1222.1 -318.9 8 p3.3 -1236.0 -1215.1 9 p3.2 -1058.5 -1416.0 10 p3.1 -839.2 -1416.0 11 p3.0 -617.5 -1416.0 12 p2.3 -383.4 -1416.0 13 p2.2 -161.6 -1416.0 14 p2.1 85.5 -1416.0 15 p2.0 307.3 -1416.0 16 p1.3 536.9 -1421.4 17 p1.2 724.5 -1421.4 18 p1.1 933.5 -1421.4 19 p1.0 1243.1 -1314.6 20 gnd 1255.7 -1088.6 21 osc 1243.1 -644.2 22 test 1243.1 -456.6 23 v dd 1202.4 -284.4
7 * this specification are subject to be changed without notice. em22700a series 6/12/16/20/30/40/60 sec. voice/melody synthesizer with tiny controller 5.28.1998 - easy sound chip size : 2800 x 4440 m m pad no. symbol x y 7 vo -1222.1 -959.0 8 p3.3 -1235.9 -1855.2 9 p3.2 -1058.4 -2056.1 10 p3.1 -839.2 -2056.1 11 p3.0 -617.4 -2056.1 12 p2.3 -383.4 -2056.1 13 p2.2 -161.6 -2056.1 14 p2.1 85.5 -2056.1 15 p2.0 307.3 -2056.1 16 p1.3 537.0 -2061.5 17 p1.2 724.5 -2061.5 18 p1.1 933.5 -2061.5 19 p1.0 1243.1 -1954.6 20 gnd 1255.7 -1728.6 21 osc 1243.1 -1284.2 22 test 1243.1 -1096.7 23 v dd 1202.4 -924.4 7 em22740a/em22760a 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 vo p3.3 p3.2 p3.1 p3.0 p2.3 p2.2 p2.1 p2.0 p1.3 p1.2 p1.1 p1.0 gnd osc test vdd (0,0)
* this specification are subject to be changed without notice. em22700a series 6/12/16/20/30/40/60 sec. voice/melody synthesizer with tiny controller 8 5.28.1998 - easy sound application circuit in the following application circuits: *1 : for heavy loading application, adding an electrolytic capacitor between vcc and ground is recommanded. the recommanded value for button cell application is 10 m f. *2 : the recommanded value for button cell application is 750 w or less. p1.0 p1.1 p1.2 p1.3 vdd osc test vss p2.0 p2.1 p2.2 p2.3 p3.0 p3.1 p3.2 p3.3 vo 1 2 3 4 13 14 16 15 5 6 7 8 9 10 11 12 17 vcc vcc npn u1 tr1 tr2 tr3 tr4 tr5 tr6 tr7 tr8 tr9 tr10 tr11 tr12 tr13 tr14 tr15 tr16 *1 rb *2 16-key application circuit p1.0 p1.1 p1.2 p1.3 vdd osc test vss p2.0 p2.1 p2.2 p2.3 p3.0 p3.1 p3.2 p3.3 vo 1 2 3 4 13 14 16 15 5 6 7 8 9 10 11 12 17 vcc vcc vcc npn u1 tr1 tr2 tr3 tr4 *1 rb *2 4-key application circuit
9 * this specification are subject to be changed without notice. em22700a series 6/12/16/20/30/40/60 sec. voice/melody synthesizer with tiny controller 5.28.1998 - easy sound 64-key application circuit 32-key application circuit vss test osc vdd p1.3 p1.2 p1.1 p1.0 vo p3.3 p3.2 p3.1 p3.0 p2.3 p2.2 p2.1 p2.0 15 16 14 13 4 3 2 1 17 12 11 10 9 8 7 6 5 vcc vcc npn tr1 vcc tr2 tr3 tr4 tr5 tr6 tr7 tr8 tr9 tr10 tr11 tr12 tr13 tr14 tr15 tr16 tr17 tr18 tr19 tr20 tr21 tr22 tr23 tr24 tr25 tr26 tr27 tr28 tr29 tr30 tr31 tr32 10k 10k 10k d1 d2 d3 p10 p11 p12 p13 *1 rb *2 vss test osc vdd p1.3 p1.2 p1.1 p1.0 vo p3.3 p3.2 p3.1 p3.0 p2.3 p2.2 p2.1 p2.0 15 16 14 13 4 3 2 1 17 12 11 10 9 8 7 6 5 vcc vcc npn tr1 vcc tr2 tr3 tr4 tr5 tr6 tr7 tr8 tr9 tr10 tr11 tr12 tr13 tr14 tr15 tr16 tr17 tr18 tr19 tr20 tr21 tr22 tr23 tr24 tr25 tr26 tr27 tr28 tr29 tr30 tr31 tr32 tr33 tr34 tr35 tr36 tr37 tr38 tr39 tr40 tr41 tr42 tr43 tr44 tr45 tr46 tr47 tr48 tr49 tr50 tr51 tr52 tr53 tr54 tr55 tr56 tr57 tr58 tr59 tr60 tr61 tr62 tr63 tr64 10k 10k 10k d1 d2 d3 *1 rb *2
* this specification are subject to be changed without notice. em22700a series 6/12/16/20/30/40/60 sec. voice/melody synthesizer with tiny controller 10 5.28.1998 - easy sound 128-key application circuit (a) 128-key application circuit (b) vss test osc vdd p1.3 p1.2 p1.1 p1.0 vo p3.3 p3.2 p3.1 p3.0 p2.3 p2.2 p2.1 p2.0 15 16 14 13 4 3 2 1 17 12 11 10 9 8 7 6 5 vcc vcc npn tr1 vcc tr2 tr3 tr4 tr5 tr6 tr7 tr8 tr9 tr10 tr11 tr12 tr13 tr14 tr15 tr16 tr17 tr18 tr19 tr20 tr21 tr22 tr23 tr24 tr25 tr26 tr27 tr28 tr29 tr30 tr31 tr32 tr33 tr34 tr35 tr36 tr37 tr38 tr39 tr40 tr41 tr42 tr43 tr44 tr45 tr46 tr47 tr48 tr49 tr50 tr51 tr52 tr53 tr54 tr55 tr56 tr57 tr58 tr59 tr60 tr61 tr62 tr63 tr64 10k 10k 10k d1 d2 d3 *1 rb *2 tr65 tr66 tr67 tr68 tr69 tr70 tr71 tr72 tr73 tr74 tr75 tr76 tr77 tr78 tr79 tr80 tr81 tr82 tr83 tr84 tr85 tr86 tr87 tr88 tr89 tr90 tr91 tr92 tr93 tr94 tr95 tr96 tr97 tr98 tr99 tr100 tr101 tr102 tr103 tr104 tr105 tr106 tr107 tr108 tr109 tr110 tr111 tr112 tr113 tr114 tr115 tr116 tr117 tr118 tr119 tr120 tr121 tr122 tr123 tr124 tr125 tr126 tr127 tr128 p10 p32 p31 p11 p12 p13 p20 p21 p22 p23 l16 l15 l14 l13 l12 l11 l10 10k l9 l9 p32 p31 10k p30 l12 p33 p31 10k p30 l13 p33 p32 10k p30 l14 p33 p32 10k p31 p30 l16 p33 p32 10k p31 l15 p33 p31 10k l10 p33 p32 10k l11
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