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1 * this specification are subject to be changed without notice. EM32082 talking clock/watch 5.31.1996 EM32082 talking clock/watch general description EM32082 is a single chip talking clock/watch with a built in voice synthesizer that can produce high quality of speech. it contains low power consumption circuit, lcd driver and step motor driver. in addition, the function of time announcement is available which the voice data is programmable for user's specified language and both the speaker and buzzer driver are provided to meet diversed applications. features ? single power supply:2.4v - 3.6v. ? low operating current:2 ua typical.(v dd =3v). ? 2 operation modes(clock/watch mode) selectable. ? 1/2 duty multiplexed with 3 1/2 digits lcd driver is provided. ? total 23 seconds voice capacity. ? functions of time announcement,alarm with snooze,hourly report are provided. ? 24/12 hour format selectable. ? three kinds of alarm sound selectable. ? provide driver to drive analog clock directly. ? driver to drive speaker and buzzer. function block diagram 32hz 1hz timing1 speech controller lcd display driver program rom & voice rom aspcm kernel vo buz1 buz2 watch control logic pla control logic timing2 (internal osc.) v dd r oscr chime,alarm hr,min,tr v dd v ss bo1 bo2 ai3 ai4 ai1 ai2 oscin 32768 hz oscout mot1 mot2 mode buz/sp snooze zero a_p p2412 talk tr1 tr2 tr3 sp_en com1 lcd segment com2
* this specification are subject to be changed without notice. EM32082 talking clock/watch 2 5.31.1996 symbol i/o function vo o voice current output. talk i trigger input for time report. tr1 i reference to the function description. tr2 i reference to the function description. tr3 i reference to the function description. a_p i trigger intput for am/pm selection. oscr i oscillator resistor connection pin. mode i watch/clock mode selection pin. v dd for watch mode. v ss for clock mode. buz/sp i buzzer/speaker output selection pin. v dd for buzzer output.v ss for speaker output. sp_en i timing setting report enable/disable selection pin. v dd to enable time setting report.v ss to disable time setting report. p2412 i 24/12 hour format selection pin. v dd for 24 hour format.v ss for 12 hour format. snooze i v dd to enable snooze function.v ss to disable snooze function. ai1-ai4 i key scan matrix input. tpad i for testing only. com1 o display driver for lcd common. ch/be o display driver for lcd segment. c4/b4 o display driver for lcd segment. g4/a4 o display driver for lcd segment. e4/f4 o display driver for lcd segment. c3/b3 o display driver for lcd segment. g3/ad3 o display driver for lcd segment. e3/f3 o display driver for lcd segment. d4/colon o display driver for lcd segment. c2/b2 o display driver for lcd segment. g2/a2 o display driver for lcd segment. e2/f2 o display driver for lcd segment. d2/b1 o display driver for lcd segment. c1/adeg1 o display driver for lcd segment. pm/al o display driver for lcd segment. com2 o display driver for lcd common. v1 o lcd voltage supply. v ss i negative power supply. zero o output indicator when current count to 00:00 for 24 hour format or 12:00 am for 12 hour format. buz2-buz1 o buzzer driver output. mot2-mot1 o step motor driver output pin descriptions
3 * this specification are subject to be changed without notice. EM32082 talking clock/watch 5.31.1996 symbol i/o function bo2-bo1 o key scan matrix output. osco o crystal connection output pin. osci i crystal connection input pin. c8pp i compensating capacitor. v dd i postitive power supply. flash function descriptions a). mode selection: EM32082 can be selected into watch mode if mode pin is connected to v dd . on the other hand, it will be in clock mode if mode pin is connected to v ss . 1) watch mode. if EM32082 is selected to be watch mode, tr1 pin is used for operation mode selection and the sequence of operation mode change is as followed: real time mode ? real time setting mode ? alarm time setting mode ? real time mode i) real time mode. under this mode,the lcd display shows current time. pin name description talk trigger pin for current time report tr2 trigger pin for alarm on/off selection bi-bi ? cuckoo ? cu-cu ? alarm off ? bi-bi tr3 trigger pin for hourly reprot on/off selection a_p of no use. ii) real time setting mode. under this mode,the lcd display is flashing and wait for current time setting.if there is no current time adjustment during 10 seconds, it will back to real time mode automatically.
* this specification are subject to be changed without notice. EM32082 talking clock/watch 4 5.31.1996 pin name description talk trigger pin for current time report tr2 trigger pin for current time hour setting. tr3 trigger pin for current time minute setting. a_p trigger pin for current time am/pm selection. current time will increment by 12 hours if EM32082 receives a pulse from a_p pin. iii) alarm time setting mode. under this mode,the lcd display is flashing and wait for alarm time setting.if there is no alarm time adjustment during 10 seconds, it will back to real time mode automatically. flash al pin name description talk trigger pin for current time report tr2 trigger pin for current time hour setting. tr3 trigger pin for current time minute setting. a_p trigger pin for current time am/pm selection. alarm time will increment by 12 hours if EM32082 receives a pulse from a_p pin. 2). clock mode. if EM32082 is selected to be clock mode, the matrix scan i/o pins ai1-ai4,bo1-bo2 are used for mode and function selection and will be described below. a). operation mode selection. position mode s1 real time mode s2 real time setting mode s3 alarm time setting mode i) real time mode. under this mode,the lcd display shows current time. bo2 bo1 s3 s2 s1 ai1 switch
5 * this specification are subject to be changed without notice. EM32082 talking clock/watch 5.31.1996 pin name description talk trigger pin for current time report tr2,tr3 of no use. a_p of no use. ii) real time setting mode. under this mode,the lcd display is flashing and wait for current time adjusting. pin name description talk trigger pin for current time report tr2 trigger pin for current time hour setting. tr3 trigger pin for current time minute setting. a_p trigger pin for current time am/pm selection. current time will incre- ment by 12 hours if EM32082 receives a pulse from a_p pin. iii) alarm time setting mode. under this mode,the lcd display is flashing and wait for alarm time adjusting. pin name description talk trigger pin for alarm time report tr2 trigger pin for alarm time hour setting. tr3 trigger pin for alarm time minute setting. a_p trigger pin for alarm time am/pm selection. alarm time will incre- ment by 12 hours if EM32082 receives a pulse from a_p pin. flash flash al b). alarm sound selection. there are three alarm sounds that can be selected as followed: position selection s4 sound1(bi-bi) s5 sound2(cuckoo) s6 sound3 (cu-cu) c). alarm on/off selection. bo1 off on ai3 alarm bo2 bo1 s6 s5 s4 ai4 switch bo1 bo2
* this specification are subject to be changed without notice. EM32082 talking clock/watch 6 5.31.1996 d). chime on/off selection. b). speech enable/disable option for time setting mode in real time setting mode or alarm time setting mode,if pin sp_en is high, EM32082 will report on each hour/ minute increment when trigger pin tr2/tr3 is pressed continuously. on the other hand, if pin sp_en is low, EM32082 will not report on each hour/minute increment and the real time/alarm time will advance at about 4 hz rate. c). 24/12 hour format selection if p2412 pin is high (v dd ) ,EM32082 is selected to be 24 hour format, otherwise, EM32082 is selected to be 12 hour format. in 24 hour format, pm indicator is always off and lcd time display will be from 00:00 to 23:59. in 12 hour format, pm indicator is on from 12:00 pm to 11:59 pm,off from 12:00 am to 11:59 am. d). alarm match and snoozing when the current time matchs the alarm time, if the function of alarm is selected to be 'on',EM32082 will play alarm sound and last for about one minute unless the pin talk is triggered. ten minutes later, it will alarm again if the snooze function is selected to be 'on'. there are totally six times for the snooze function if the snooze pin is "high". e). analog driver function and other control signals a) EM32082 provides two pulses to drive motor of the analog clock directly if necessary. the pulses provided are shown below. b) EM32082 will send a pulse with pulse width 5 seconds to zero pin if the current time counts to 00:00 for 24 hour format or 12:00 am for 12 hour format. f). debounce to prevent mistaken action due to bounce of trigger switch, any bounce pulse shorter than 20 ms of pin talk, tr1, tr2, tr3, a_p will be ignored by the debounce circuit of EM32082. mot1 mot2 2 sec. 2 sec. bo2 off on ai2 chime
7 * this specification are subject to be changed without notice. EM32082 talking clock/watch 5.31.1996 absolute maximum ratings items sym. min. max. unit supply voltage v dd -v ss -0.5 +5.4 v input voltage v in v ss -0.2 v dd +0.2 v operating temperature t op 050 c storage temperature t stg -55 +125 c electrical characteristics (osc=32768 hz, t a =25 c, v dd =3.0 v unless otherwise specified) parameter sym. min. typ. max. unit condition supply voltage vdd 2.4 3.0 3.6 v operating current idd1 - 2.0 5 m a output open, notspeaking operating currnet idd2 - 150 200 m a output open, speaking input current ii 1.0 3.0 10 m a (talk,tr1-tr3,a_p) lcd frequency flcd - 32 - hz voice output (vo) ivo 2.0 3.0 4.5 ma vo=0.7v buzzer output ibz 5.0 10.0 15.0 ma vbz=1.5v (buz1,buz2) oscillator start time tosc - 0.5 3 sec osci instrinsic capacitance c1 - 12 - pf osci instrinsic capacitance c2 - 20 - pf pad option osco instrinsic capacitance cout - 20 - pf frequency stability - 1 3 ppm motor driver current imi 5 8 15 ma vmi=2.5v (mot1, mot2)
* this specification are subject to be changed without notice. EM32082 talking clock/watch 8 5.31.1996 lcd display a1 a2 b2 f2 b1 g1 g2 e1 c1 e2 c2 d1 d2 pm alarm bell al a3 a4 f3 b3 f4 b4 e3 c3 e4 c4 d3 d4 g3 g4 g2 c1 e2 c2 d2 pm alarm bell e3 c3 e4 c4 d4 g3 g4 com2 pm/al c1/adeg1 d2/b1 e2/f2 g2/a2 c2/b2 d4/colon e3/f3 g3/ad3 c3/b3 e4/f4 g4/a4 c4/b4 ch/be com1 com2 pm/al c1/adeg1 d2/b1 e2/f2 g2/a2 c2/b2 d4/colon e3/f3 g3/ad3 c3/b3 e4/f4 g4/a4 c4/b4 ch/be com1 chime a1 a2 b2 f2 b1 g1 e1 d1 al a3 a4 f3 b3 f4 b4 d3 chime
9 * this specification are subject to be changed without notice. EM32082 talking clock/watch 5.31.1996 lcd pannel analog clock com2 vo bz1 bz2 vss vdd buzzer osci osco crystal c8pp (pad option) oscr vdd vdd talk tr1 tr2 tr3 mode buz/sp snooze a_p p2412 sp_en speaker c r EM32082 rst eclk anal zero mot1 mot2 lcd segment com1 v1 ai1 ai2 ai3 ai4 bo1 bo2 application circuit r crystal zero mot1 mot2 c
* this specification are subject to be changed without notice. EM32082 talking clock/watch 10 5.31.1996 pad diagram a_p tr1 tr2 tr3 vo talk oscr eclk anal rst mode buz/sp sp_en p2412 snooze ai1 ai2 ai3 ai4 tpad com1 chbe c4b4 g4a4 e4f4 c3b3 g3ad3 e3f3 d4colon c2b2 g2a2 e2f2 d2b1 c1adeg1 pmal com2 v1 zero buz2 buz1 mot2 mot1 bo2 bo1 osco osci c8pp vdd (0,0) vss EM32082 pad no. symbol x y 1 vo -292.7 1143.6 2 talk -442.7 1143.6 3 tr1 -623.4 1143.6 4 tr2 -773.4 1143.6 5 tr3 -951.2 1143.6 6 a_p -1101.2 1143.6 7 8 oscr -1346.3 848.7 9 nc -1346.3 673.9 10 nc -1346.3 523.9 11 nc -1346.3 346.1 12 mode -1346.3 196.1 13 buz/sp -1346.3 21.3 14 sp_en -1346.3 -128.7 15 p2412 -1346.3 -297.7 16 snooze -1346.3 -447.7 17 ai1 -1346.3 -621.1 18 ai2 -1346.3 -771.1 19 ai3 -1346.3 -948.9 20 ai4 -1346.3 -1117.2 21 tpad -983.5 -1206.4 22 com1 -813.2 -1233.1 23 ch/be -616.2 -1235.1 24 c4/b4 -462.2 -1235.1 25 g4/a4 -276.1 -1235.1 26 e4/f4 -122.1 -1235.1 27 c3/b3 64.0 -1235.1 nc nc nc
11 * this specification are subject to be changed without notice. EM32082 talking clock/watch 5.31.1996 28 g3/ad 218.0 -1235.1 29 e3/f3 404.1 -1235.1 30 d4/colon 558.1 -1235.1 31 c2/b2 744.2 -1235.1 32 g2/a2 898.2 -1235.1 33 e2/f2 1084.3 -1235.7 34 35 d2/b1 1369.0 -1235.7 36 c1/adeg1 1369.0 -1050.5 37 pmal 1369.0 -896.5 38 com2 1378.1 -652.2 39 v1 1401.5 -401.2 40 v ss 1392.0 -251.2 41 zero 1403.1 -31.8 42 buz2 1403.2 180.1 43 buz1 1403.2 440.9 44 mot2 1403.2 652.3 45 mot1 1403.2 963.9 46 47 bo2 1374.3 1209.2 48 bo1 1138.1 1209.2 49 osco 897.7 1209.2 50 osci 684.5 1214.9 51 c8pp 432.0 1214.9 52 v dd 281.2 1214.9 pad no. symbol x y unit : m m chip size : 3040 x 2730 m m note : the substrate must be connceted to v ss in pcb layout artwork.

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