cdt-5201-01 --- 1 CDT5201-2 p. 1 4 digits ?H ic ? 1.5vdc ?w } 2 ? |l ic bz ? ? buzzer [? 1 ? lcd 1/4 duty 1/2 bias 4 common 3 I O ? ?,? ?,?start/stop? I ?H ? ? ? ? I reset w ?0? ? O? ?H O 00 00 ~99 99 Rl?H ? 00 00 ~99 59 00000000000000000 - - - - - - - - - - ss sts stm s1 s2 s3 s4 s5 s6 s7 s8 com3 osc2 osc1 vdd vee cap xf512 com2 com1 trig tm bz opt upopt recall vss com4 lcd segment load load 104 104 x?tal 32768hz CDT5201-2 1.5vdc min sec ?? start stop 3 OI ?w??? chip design technology inc. 89 3 8
cdt-5201-01 --- 2 CDT5201-2 p. 2 4 digits ?H ic 1. O ( ) ( I ) O ??? 1 ( I ) O ??? 1 ( I ) ?_??H + ?HHg?B 00:00(0 0 ) ? ^ 1 ?O ( ? 8 ? ) ? ^ 1 ?O ( ? 8 ? ) 2. _?c?? (1) ??H O I_???H ? 0 0 _ ?[ (2) ??H upopt pin + vss ? lcd @? 0 0 ? I_???H ? 99 59 ?^ 1 ????B 0 0 ? (3) ?Hg IH???H ? I???H Hg?H + I???B (0 0 ) 3. _?c?? (1) opt pin [?? bz pin ? ? 8 ? 60 ?? (2) opt pin + vss [?? keytone( I?t ) bz pin ? ? 10 ? 4 ? 50 ? 8 ? 60 ?? setmin setsec start / stop setmin setmin setsec setsec start / stop start / stop start / stop start / stop setmin setsec 60 sec 00:00 ??? ?? ?? 10 sec 50 sec setsec=sts setmin=stm strat / stop=ss
cdt-5201-01 --- 3 CDT5201-2 p. 3 4 digits ?H ic 4. ? (recall pin) recall pin + vss H ( ??H ?O?? ) [??H ??O ( ??H? ) 12:34 00:00 Y 12:34 O _??H [ ?O 5. trig pin normal low level ? 0 0 H ? ( c[? ) ? 6. tm pin _??Hg? high level NHg floating ? start / start 00:00 60 sec c bz ?Hg? start 00:00
cdt-5201-01 --- 4 CDT5201-2 p. 4 4 digits ?H ic CDT5201-2 _D ic _f chip pad ? f chip pad ? f 1 vdd ?O 21 bz buzzer ?t ?? ? ( opt Q ) 2 3 4 vee cap xf512 }?? 22 tm 23 trig 5 6 7 8 9 10 11 12 13 14 15 16 com2 com1 s1 s2 s3 s4 s5 s6 s7 s8 com3 com4 lcd @?? 17 vss ??O 18 recall vss ? 24 25 26 stm sts ss ? ? OI ? ? OI ? / ?? ? OI 19 upopt vss H , ic ? 27 28 29 30 31 -- -- -- -- t1 _ _ _ _ ?y? 20 opt 1. _ -- ] key tone, bz ?t?? 2. vss-- key tone, bz ?t? 32 33 osc2 osc1 ?U? ?U? t1 s1 s2 s3 s4 s5 s6 s7 s8 com3 osc1 osc2 vdd vee cap xf512 com2 com1 tm ss bz - - upopt recall vss com4 CDT5201-2 33 32 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 chip size: 2180 x 1630 m ic ? vss _??Hg? high level, stop bz H -- floating ? start 00:00 normal low, ? 00:00 H? high level ? start 00:00s c bz ?Hg? 1. opt pin floating: bz ?t?? ?? ?? 8hz/4khz ( Bm? ) 60 sec stop alarm 00:00 2. opt pin + vss bz ?t? 50 sec stop alarm 1 sec 00:00 60 sec 1 sec 10 sec 8hz/4khz ( Bm? ) ? 4hz/4khz ( 4 ? -- ? ) - - - - - - sts stm opt trig
cdt-5201-01 --- 5 CDT5201-2 p. 5 4 digits ?H ic 1. ?H a. ?B -- 00:00 b. O? O? c. -- ?H_? .. d. -- ?H? e. ? -- ?H_ ? f. ?H -- w g. Hg -- _?[ (? ) g-1 ?I -- [?? O h. Hg -- _?[ h-1. ?I -- [?? w i. Hg -- _?[ i-1. ?H -- [?? w sec min start st op sec min start st op sec min start st op sec min start st op sec min start st op sec min start st op sec min start st op sec min start st op sec min start st op sec min start st op stop st op start stop min sec min sec sec min start st op sec min start st op sec min start start
cdt-5201-01 --- 6 CDT5201-2 p. 6 4 digits ?H ic 2. Rl?H a. ?B -- 00:00 b. -- Rl?H_? c. -- Rl?H? d. -- ?H? e. ?H -- w f. ??H -- _?[ g. ? -- w sec min start st op sec min start st op sec min start st o p sec min start st op sec min start st op sec min start st op sec min start st op start stop start st op start stop sec min
cdt-5201-01 --- 7 CDT5201-2 p. 7 4 digits ?H ic ic _?D unit: m pad x y pad x y pad x y 145 1210 1220 100 1930 1515 145 1040 1376 100 1565 1485 145 885 1646 100 1395 1485 145 730 1806 100 1215 1485 145 580 1930 290 1055 1485 145 340 1930 455 895 1485 99.5 100 1930 615 735 1485 373.5 100 1930 785 575 1485 527 100 1930 955 415 1485 796 100 1930 1125 145 1525 950 100 1930 1285 145 1370 t1 -- -- -- -- ss sts stm s1 s2 s3 s4 s5 s6 s7 s8 com3 osc1 osc2 vdd vee cap xf512 com2 com1 tm trig bz opt upopt recall vss com4 CDT5201-2 33 32 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 chip size: 2180 x 1780 m ic ? vss vdd 1 2 3 4 6 7 8 s6 12 s7 13 s8 14 com3 15 vss 17 recall 18 upopt 19 opt 20 bz 21 tm 22 com4 16 trig 23 stm 24 sts 25 ss 26 - - 28 - - 29 - - 30 t1 31 osc2 32 osc1 33 - - 27 vee cap xf512 com1 s1 s2 s3 9 s4 10 s5 11 com2 5
cdt-5201-01 --- 8 CDT5201-2 p. 8 4 digits ?H ic recommended lcd layout lcd pin assignment ic pin com1 com2 com3 com4 s8 a1 f1 e1 - - s7 b1 g1 c1 d1 s6 a2 f2 e2 - - s5 b2 g2 c2 d2 s4 a3 f3 e3 m/s s3 b3 g3 c3 d3 s2 a4 f4 e4 - - s1 b4 g4 c4 d4 lcd ? . #1 #2 #3 #4 a f e d c b g segments .
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