r h1137 copyright ? 2004, em microelectronic-marin sa 1 www.emmicroelectronic.com cmos circuit for analog quartz watches description the h1137 is a low power 32khz analog watch chip de- signed to drive a stepping motor. motor pulse width is programmable from 0.9765 to 14.65 milliseconds in steps of 0.9765 milliseconds. motor pulse period is program- mable from 2 x 1 to 2 x 60 seconds in steps of 1 second. motor pulse period is also programmable from 2 x 0.25 to 2 x 15.75 seconds in steps of 0.25 seconds. input and output capacitors are integrated on the chip. their values are metal mask selectable. t he selection of width, period and capacitance are metal options and do not require additional bonds. application ? analog watches features ? 32hz quartz oscillator ? operating voltage ran ge ? 1.2v to ?1.8v ? high oscillator stability ? integrated capacitors, mask selectable ? mask options for pad designation, motor period and motor pulse width ? shorted motor coil between motor pulses ? fast motor test function ? esd protected terminals ? 512hz output on test pad for quartz frequency measurement ? fully debounced test input and reset input functional diagram operating range of trimmer capacitance: 3pf c tr 30 pf rl (stepping motor) crown c tr v n v p v p v p reset mot 1 mot 2 osc in osc out h1137 v p v n fig. 1 pin assignment h1137 8765 12 3 4 10 pad function pad location v n negative supply voltage 1 v p positive supply voltage 5 osc in oscillator input 3 osc out oscillator output 4 mot 1 motor drive output 1 7 mot 2 motor drive output 2 6 reset reset input 2 or 8 test test input/output 2 or 8 or 10 fig. 2 em microelectronic - marin sa
r h1137 copyright ? 2004, em microelectronic-marin sa 2 www.emmicroelectronic.com absolute maximum ratings parameter symbol min. typ. max. units supply voltage voltage applied to other terminals storage tem- perature v n t stor -3.6 v n ?0.3 -55 +0.2 v p +0.3 +125 v v c stresses beyond these listed maximum ratings may cause permanent damage to the device. exposure to conditions beyond specified operating conditions may affect device reliability or cause malfunction. recommended operating conditions parameter symbol value units ambient temperature quartz frequency quartz series resistance motor coil resistance positive supply negative supply supply source resistance t f q r q r m vp v n r i 25 32768 30 2.0 0 -1.55 10 c hz k ? k ? v v ? handling procedures this device contains circuitry to protect the terminals against damage due to high stat ic voltages or electrical fields. however, it is advis ed that normal precautions be taken to avoid application of any voltage higher than maximum rated voltages to this circuit. operating conditions parameter symbol min. typ. max. units operating temperature quartz series resistance trimmer capacitance t opr c tr -10 3 30 +60 50 30 c k ? pf electrical and switching characteristics at recommended operating conditi ons unless otherwise specified parameter symbol test conditions min. typ. max. units supply voltage range mean dynamic current v n i dyn without motor and quartz, 32khz inverted square wave forced at osc in and osc out , test open -1.8 -1.55 90 -1.2 150 v na mean current consumption i n with quartz, without motor, test open, c tr = 12 pf 200 350 na oscillator transconductance starting voltage starting time gm v st t st v n = 1.2v, v pp = 300mv within 10 seconds recommended operating conditions 2.5 0.75 2 mho v s stability df / f*dv n between ?1.4v and ?1.6v 1.5 ppm/v motors drivers voltage across motor voltage across motor voltage across motor short circuit impedance v mot v mot v mot r cc v n = -1.55v, r m = 2k ? v n = -1.25v, r m = 2k ? r i = 300 ? , t opr between motor pulses 1.35 1.0 1.0 1.40 1.10 1.20 150 300 v v v ? test input / output amplitude mean current v tst i tst zi = 30pf // 1m ? pad connected to v p 1.35 70 250 v pp na reset input debounce delay input current after debounce delay * t s i s pad connected to v p 7.81 7 23.43 50 ms na * is the average input current, modulated by a frequency of 64 hz
r h1137 copyright ? 2004, em microelectronic-marin sa 3 www.emmicroelectronic.com timing waveforms fast motor test mode, test = v p v p v n v p v n mot 1 mot 2 2.93 ms t 65.43 ms (16 hz) 2.93 ms t 34.18 ms (32 hz) test v p v n tm/2 tm 62.50ms or 31.25ms tm/2 v n v p v n v p v n t tst = 1.953 ms (512hz output) v p v n reset mot 1 mot 2 test motor drive output and reset >23.43ms debounce delay <7.81ms tm/2 tm tm v n v p v n v p v n t tst = 1.953 ms (512hz output) v p v n reset mot 1 mot 2 test motor drive output in normal operation fig. 3
r h1137 copyright ? 2004, em microelectronic-marin sa 4 www.emmicroelectronic.com block diagram oscillator initial d ivid er pulse w idth divider divider 1hz p ulse r epetition divider motor logic master reset motor driver test logic osc in osc out test mot 1 mot 2 reset fig. 4 pin assignments name function v n v p osc in osc out mot 1 mot 2 reset test negative supply voltage positive supply voltage oscillator input oscillator output motor drive output 1 motor drive output 2 reset input test input / output functional description oscillator the 32?768hz clock frequency is generated by a crystal oscillator. input and output c apacitors are integrated in the chip. their values are metal mask selectable. motor drive output the h1137 contains two push-pull output buffers for driv- ing bipolar stepping motors (see fig. 3). between two pulses, the two p-channel devices are active for motor damping. reset pulling the reset input to v p resets the frequency di- viders and disables the motor pulses. motor pulses in progress when the reset function is applied, will be completed. after releasing the reset pad from v p , the next motor pulse appears with a delay of one half motor cycle on the drive output mot 1 if the last motor pulse appeared on mot 2 or vice-versa (see fig. 3). due to the debounce circuitry on the reset input, v p must be ap- plied for at least 23.4 ms to be accepted as reset. test mode the test pad fulfils two functions: a) for normal operation, the test pad is left open. the circuit outputs a square wave signal of 512hz which can be used for tuning the oscillator. b) if the test pad is connected to v p , the period for the motor pulses changes to either 2 x 31.25 ms or 2 x 62.5 ms (mask options), while the motor pulse width remains unchanged (fast motor test). test test pad function description connected to v p open fast motor test normal operation increase the frequency for the motor pulses to 16hz (32hz) output of square wave signal (512hz) test configuration operating range of trimmer capacitance: 3pf c tr 30 pf rl reset c tr v n v p v p v p reset mot 1 mot 2 osc in osc out h1137 v p v n test test fig. 5
r h1137 copyright ? 2004, em microelectronic-marin sa 5 www.emmicroelectronic.com metal mask option possibilities motor pulse and capacitance sym- bol description range min. range max. range resolut. tm tm tm c in c out motor pulse period fast motor test motor pulse width oscillator input capacity oscillator output capac. 2x1.00s 2x31.25ms 0.9765ms 2pf 2.7pf 2x60.00s 2x62.50ms 14.65ms c in + c out =35pf 1.00s 0.9765ms 1pf 1pf pad options sym- bol description pad layout 1 pad layout 2 pad layout 3 test reset pad test pad reset pad 10 pad 8 pad 2 not used pad 2 pad 8 pad 10 not used pad 8 pad 2 pad 10 not used possible versions option list (supply voltage ?1.55v) options motor output integrated capacitor designation pad version period s pulse width ms fast mode ms osc in pf osc out pf pad 1 pad 2 pad 3 pad 4 pad 5 pad 6 pad 7 pad 8 pad 10 com- patible euro- sil e1208 h1137v01 h1137v02 h1137v03 h1137v04 h1137v05 2x12 2x1 2x10 2x12 2x1 6.8 3.9 7.8 5.9 6.8 2x62.5 2x62.5 2x62.5 2x62.5 2x62.5 2 2 2 2 2 18 14 22 14 14 v n v n v n v n v n - test reset test test osc in osc in osc in osc in osc in osc out osc out osc out osc out osc out v p v p v p v p v p mot 2 mot 2 mot 2 mot 2 mot 2 mot 1 mot 1 mot 1 mot 1 mot 1 reset reset test reset reset test - - - - a b c d e h1137v07 h1137v08 h1137v09 h1137v10 h1137v11 h1137v12 h1137v13 h1137v14 h1137v15 h1137v16 h1137v17 2x10 2x12 2x1 2x1 2x12 2x1 2x12 2x1 2x1 2x1 2x5 5.9 6.8 7.8 3.9 5.9 6.8 6.8 4.9 6.8 5.9 5.9 2x62.5 2x62.5 2x62.5 2x62.5 2x62.5 2x62.5 2x62.5 2x62.5 2x62.5 2x62.5 2x62.5 2 2 2 2 2 2 2 2 2 2 2 16 14 20 14 14 14 14 16 20 14 14 v n v n v n v n v n v n v n v n v n v n v n reset test test - - - - test test test test osc in osc in osc in osc in osc in osc in osc in osc in osc in osc in osc in osc out osc out osc out osc out osc out osc out osc out osc out osc out osc out osc out v p v p v p v p v p v p v p v p v p v p v p mot 2 mot 2 mot 2 mot 2 mot 2 mot 2 mot 2 mot 2 mot 2 mot 2 mot 2 mot 1 mot 1 mot 1 mot 1 mot 1 mot 1 mot 1 mot 1 mot 1 mot 1 mot 1 test reset reset reset reset reset reset reset reset reset reset - - - test test test test - - - - g h is k l m n o p s t h1137v19 h1137v20 h1137v21 h1137v22 h1137v23 h1137v24 h1137v25 h1137v26 h1137v27 h1137v28 2x20 2x20 2x1 2x1 2x1 2x10 2x5 2x20 2x0.5 2x40 7.8 5.9 4.9 3.9 5.9 6.8 7.8 6.8 4.9 5.9 2x62.5 2x62.5 2x62.5 2x62.5 2x62.5 2x62.5 2x62.5 2x31.25 2x62.5 2x62.5 2 2 2 2 2 2 2 2 2 2 14 14 14 20 20 14 20 14 14 14 v n v n v n v n v n v n v n v n v n v n test test test test test test test test test test osc in osc in osc in osc in osc in osc in osc in osc in osc in osc in osc out osc out osc out osc out osc out osc out osc out osc out osc out osc out v p v p v p v p v p v p v p v p v p v p mot 2 mot 2 mot 2 mot 2 mot 2 mot 2 mot 2 mot 2 mot 2 mot 2 mot 1 mot 1 mot 1 mot 1 mot 1 mot 1 mot 1 mot 1 mot 1 mot 1 reset reset reset reset reset reset reset reset reset reset - - - - - - - - - - v wa wb wd we wf wg wh h1137v51 h1137v52 h1137v53 h1137v54 h1137v58 2x5 2x5 2x1 2x20 2x10 4.9 7.8 3.9 4.9 4.9 2x31.25 2x31.25 2x31.25 2x31.25 2x31.25 2 2 2 2 2 23 23 23 23 25 v n v n v n v n v n test test test test reset osc in osc in osc in osc in osc in osc out osc out osc out osc out osc out v p v p v p v p v p mot 2 mot 2 mot 2 mot 2 mot 2 mot 1 mot 1 mot 1 mot 1 mot 1 reset reset reset reset test - - - - - ordering information for other versions, please contact em microelectronic-marin s.a. please make sure to give the complete part number when ordering. - customer version: customer-s p ecific number g iven b y em microelectronic thickness: 11 = 11 mils ( 280um ) 27 = 27 mils ( 686um ) (for other thickness, contact em) die form: ww = wafer ws = sawn wafer/frame wp = waffle pack %%% h1137 ww 11
r h1137 copyright ? 2004, em microelectronic-marin sa 6 www.emmicroelectronic.com chip information 1165 836 456 74 48 298 905 1177 1549 162 219 327 800 1245 8 76 5 12 34 10 h1137 v nn 1) all dimensions in microns 1) nn stands for the version fig. 6 ? em microelectronic-marin sa, 11/04, rev. a em microelectronic-marin sa cannot assume responsibility for use of any circuitry described other than circuitry entirely embodied in an em microelectronic-marin sa product. em microelectronic-marin sa reserves the right to change the circuitry and specifications without notice at any time. you are strongly urged to ensure that the information given has not been superseded by a more up-to-date version.
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