CT-88 ---- 1 CT-88 p. 1 -?? ( a- ) + ?o|? ic ?? ????? ?? s ? ct88 ?oq? cmos lsi 3]-p ?a ?o|ih -???`??????c ?? |3ao?\?xJ|??g 1. -?? + ???o 2. ???o? ?? |3ao???????J|??g 1. ko?\???? (key1) 2. -?qp?b?bjn???? (key2) ?? |u?q|3go???????J|??g 1. opt a??} w |u?q@?q|? 2. opt+vdd w |u?qg?q|? ( g?q|? w n-?jpn ) ~1s? ?a 3??sax ?c cmos ?s3yt3n u@1q?d3?g 2.0~5.0vdc ic ?xa??2o scr ?o|???J|?ihh?g (1) -??ao3t????l?e?i??? (2) c-ooq?@o????oJ|? |p@???|3ko?\???J|??g (1) -?? + |?oh-?? 5 o?|????? \ (2)~ \ (6) (2) -?? + |?oh-?? 3s?g3s (3) -?? + |?oh-?? ???g?? (4) -?? + 3??oh-?? ?]???? (5) -?? + a?oh-?? ?]???? (6) -?? + 3??oh-?? {??? (7) |?o|????? ?a l-?? ?c (8) |?ot?g ?a l-?? ?c dual tone -???x 1500 notes o?e? ?a oq|i???e ?c ?? 2?~3? ?? 2?~F?t ?s ?1 oq|???q ]??J|? ct88 21 -ooq 16p dip ?t????1?o| disco ?o| ?l ? 21 -ooq||wo 1. jingle bells 11. upon the house top 2. the first 12. hark! the herald angles sing 3. oh ?i x?mas tree 13. green sleeves 4. silent night 14. santa claus is coming to town 5. joy to the world 15. angels we have heard on high 6. deck the halls 16. away in a manager 7. oh come ?a all ye faithful 17. i heard the bells on x?mas day 8. it come upon the midnight cl ear 18. o little town of bethlehem 9. we wish you a merry x?mas 19. good christian man rejoice 10. o! come ?a little children 20. auld lang syne 21. o! how joyfully ?abb??a?|3--?q chip design technology 89 |~ 3 ? 8 H
CT-88 ---- 2 CT-88 p. 2 -?? ( a- ) + ?o|? ic ic ?u?}?yt?m 16 pin dip ]?? ic ?u?}?yt?m 1V?}?y ic ]???}?? ??2??1 \ ?? ? 1 1 opt ???3????a??J|? opt a??}?g@?q|? ?a opt+vdd ?gg?q|? ( g?q|??gn-?j ?b pn ) 2 2 vdd 1q?? 3 off off+vdd= |3\?x , off+vss= l\?x 4 3 env n-|^a? 5 6 7 4 5 6 aui a01 a02 -?w??j|^a?j -?w??j?xoy -?w??j?xoy 8 7 zc ac 60hz ?joy 9 8 vss 1q?-t 10 11 9 10 osco osci ???1?x ???1?j 12 13 14 15 11 12 13 14 l4 l3 l2 l1 l4 ?x l3 ?x l2 ?x l1 ?x 16 15 key1 ko?\???? 17 16 key2 -?qp?b?bjn???? chip size: 2070 x 1770 m ct88 opt key2 vdd+off key1 env l1 aui l2 a02 l3 a01 l4 zc osci 8 vss osco 16 2 15 3 14 4 13 5 12 6 11 7 10 1 9 13 4 8 zc aui t1 14 15 l1 l2 l3 cdt-5170 6 a02 3 env off t2 2 vdd 1 opt 17 k2 16 k1 9 vss t3 10 osco 11 osci 7 a01 12 l4 ic ?3?y vss 5
CT-88 ---- 3 1 CT-88 p. 3 -?? ( a- ) + ?o|? ic ?? 3??u?? ? @?q|?\ components description u1 ?g ic ct88 d1,d2 ?g 1n4005 r1 ?g 200k ? 1/4w z1 ?g 5.6v zener diode r2 ?g 820k ? 1/4w q1, q2, q3, q4 ?g scr 400v, 0.5a r3 ?g 1k ? 1/4w q5 ?g transistor c945 r4 ?g 4.7k ? 1/4w q6 ?g transistor a733 r5 ?g 560 ? 1/4w c1 ?g 0.1 f / 250v r6 ?g 95k ? 1/4w c2 ?g 470 f / 10v ps1, ps2 ?g push botton c4 ?g 0.01 f / 50v sp ?g 32 ? speaker c5 ?g 100 f / 10v l1, l2, l3, l4 ?g lamps string q1 q2 q3 q4 l1 l2 l3 l4 ac 110v opt key2 vdd key1 env l1 aui l2 a02 l3 a01 l4 zc osci 16 2 15 3 14 4 13 5 12 6 11 7 10 vss osco 8 9 u1 d2 d1 r1 c1 r3 zd c2 c4 r2 ps1 ps2 r6 r5 q5 q6 r4 c5 sp
CT-88 ---- 4 1 CT-88 p. 4 -?? ( a- ) + ?o|? ic ? g?q|?\ components description u1 ?g ic ct88 d1,d2 ?g 1n4005 r1 ?g 200k ? 1/4w z1 ?g 5.6v zener diode r2 ?g 820k ? 1/4w q1, q2, q3, q4 ?g scr 400v, 0.5a r3 ?g 1k ? 1/4w q5 ?g transistor c945 r4 ?g 4.7k ? 1/4w q6 ?g transistor a733 r5 ?g 560 ? 1/4w c1 ?g 0.1 f / 250v r6 ?g 95k ? 1/4w c2 ?g 470 f / 10v ps1, ps2 ?g push botton c4 ?g 0.01 f / 50v sp ?g 32 ? speaker c5 ?g 100 f / 10v l1, l2, l3, l4 ?g lamps string q1 q2 q3 q4 l1 l2 l3 l4 ac 110v opt key2 vdd key1 env l1 aui l2 a02 l3 a01 l4 zc osci 16 2 15 3 14 4 13 5 12 6 11 7 10 vss osco 8 9 u1 d2 d1 r1 c1 r3 zd c2 c4 r2 ps1 ps2 r6 r5 q5 q6 r4 c5 sp
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