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| d a t a sh eet product speci?cation supersedes data of 1997 apr 21 file under integrated circuits, ic16 1997 dec 12 integrated circuits pca16xx series 32 khz watch circuits with eeprom
1997 dec 12 2 philips semiconductors product speci?cation 32 khz watch circuits with eeprom pca16xx series features 32 khz oscillator, amplitude regulated with excellent frequency stability high immunity of the oscillator to leakage currents time calibration electrically programmable and reprogrammable (via eeprom) a quartz crystal is the only external component required very low current consumption; typically 170 na detector for silver-oxide or lithium battery voltage levels indication for battery end-of-life stop function for accurate timing power-on reset for fast testing various test modes for testing the mechanical parts of the watch and the ic. general description the pca16xx series devices are cmos integrated circuits specially suited for battery-operated, quartz-crystal-controlled wrist-watches, with bipolar stepping motors. ordering information note 1. figure 1 and chapter package outline show details of standard package, available for specified devices and for large orders only. chapter chip dimensions and bonding pad locations shows exact pad locations for other delivery formats. type number package (1) name description version pca1601u/10 - chip on foil - pca1602t pmfp8 plastic micro ?at package; 8 leads (straight) sot144-1 pca1603u/7 - chip with bumps on tape - pca1604u - chip in tray - pca1604u/10 - chip on foil - pca1605u/7 - chip with bumps on tape - pca1606u/10 - chip on foil - pca1607u - chip in tray - pca1608u - chip in tray - pca1611u - chip in tray - pca1621u/7 - chip with bumps on tape - pca1621u/10 - chip on foil - pca1622u - chip in tray - pca1623u/7 - chip with bumps on tape - pca1624u - chip in tray - pca1625u/7 - chip with bumps on tape - pca1626u - chip in tray - pca1627u/7 - chip with bumps on tape - pca1628u - chip in tray - pca1629u/7 - chip with bumps on tape - 1997 dec 12 3 philips semiconductors product speci?cation 32 khz watch circuits with eeprom pca16xx series pinning symbol pin description v ss 1 ground (0 v) test 2 test output osc in 3 oscillator input osc out 4 oscillator output v dd 5 positive supply voltage m1 6 motor 1 output m2 7 motor 2 output reset 8 reset input fig.1 pin configuration, pca16xxt, (pmfp8). 1 2 3 4 8 7 6 5 pca16xxt v ss test osc in osc out reset m2 m1 v dd msa973 functional description and testing motor pulse the motor pulse width (t p ) and the cycle times (t t ) are given in chapter available types. voltage level detector the supply voltage is compared with the internal voltage reference v lit and v eol every minute. the first voltage level detection is carried out 30 ms after a reset. lithium mode if a lithium voltage is detected (v dd 3 v lit ), the circuit will operate in the lithium mode. the motor pulse will be produced with a 75% duty factor. silver-oxide mode if the voltage level detected is between v lit and v eol , the circuit will operate in silver-oxide mode. battery end-of-life (1) if the battery end-of-life is detected (v dd v eol ), the motor pulse will be produced without chopping. to indicate this condition, bursts of 4 pulses are produced every 4 s. power-on reset for correct operation of the power-on reset the rise time of v dd from 0 v to 2.1 v should be less than 0.1 ms. all resettable flip-flops are reset. additionally the polarity of the first motor pulse is positive: v m1 - v m2 3 0v. (1) only available for types with a 1 s motor pulse. customer testing an output frequency of 32 hz is provided at reset (pin 8) to be used for exact frequency measurement. every minute a jitter occurs as a result of time calibration, which occurs 90 to 150 ms after disconnecting the reset from v dd . connecting the reset to v dd stops the motor pulses leaving them in a high impedance 3-state condition and a 32 hz signal without jitter is produced at the test pin. a debounce circuit protects accidental stoppages due to mechanical shock to the watch (t deb = 14.7 to 123.2 ms). connecting reset to v ss activates tests 1 and 2 and disables the time calibration. test 1, v dd >v eol . normal function takes place except the voltage detection cycle (t v ) is 125 ms and the cycle time t t1 is 31.25 ms. at pin test a minute signal is available at 8192 times its normal frequency. test 2 (2) , v dd 1997 dec 12 4 philips semiconductors product speci?cation 32 khz watch circuits with eeprom pca16xx series time calibration taking a normal quartz crystal with frequency 32768khz, frequency deviation ( d f/f) of 15 10 - 6 and c l = 8.2 pf; the oscillator frequency is offset (by using non-symmetrical internal oscillator input and output capacitances of 10 pf and 15 pf) such that the frequency deviation is positive-only. this positive deviation can then be compensated for to maintain time-keeping accuracy. once the positive frequency deviation is measured, a corresponding number n (see table 1) is programmed into the devices eeprom. this causes n pulses of frequency 8192 hz to be inhibited every minute of operation, which achieves the required calibration. the programming circuit is shown in fig.2. the required number n is programmed into eeprom by varying v dd according to the steps shown in fig.3, which are explained below: 1. the positive quartz frequency deviation ( d f/f) is measured, and the corresponding values of n are found according to table 1. 2. v dd is increased to 5.1 v allowing the contents of the eeprom to be checked from the motor pulse period t t3 at nominal frequency. 3. v dd is decreased to 2.5 v during a motor pulse to initialize a storing sequence. 4. the first v dd pulse to 5.1 v erases the contents of eeprom. 5. when the eeprom is erased a logic 1 is at the test pin. 6. v dd is increased to 5.1 v to read the data by pulsing v dd n times to 4.5 v. after the n edge, v dd is decreased to 2.5 v. 7. v dd is increased to 5.1 v to store n bits in the eeprom. 8. v dd is decreased to 2.5 v to terminate the storing sequence and to return to operating mode. 9. v dd is increased to 5.1 v to check writing from the motor pulse period t t3 . 10. v dd is decreased to the operation voltage between two motor pulses to return to operating mode. (decreasing v dd during the motor pulse would restart the programming mode). the time calibration can be reprogrammed up to 100 times. table 1 quartz crystal frequency deviation, n and t t3 notes 1. increments of 2.03 10 - 6 /step. 2. increments of 122 m s/step. frequency deviation d f/f ( 10 - 6 ) number of pulses (n) t t3 (ms) 0 (1) 0 31.250 (2) +2.03 1 31.372 +4.06 2 31.494 ... ... ... +127.89 63 38.936 fig.2 circuit for programming the time calibration. msa975 v dd m1 m2 reset v ss test osc in osc out m pca16xx series 1 2 3 4 8 7 6 5 32 khz signal generator 1997 dec 12 5 philips semiconductors product speci?cation 32 khz watch circuits with eeprom pca16xx series msa948 d v ddp 123 n t = 1 m s edge 0.1 ms min. t t3 checking storing data input erasure content checking 1 2 9 10 3 4 5 6 7 8 9 10 i dd v (v) dd 0 (v ) ss 2.5 1.5 4.5 5.1 (1) (1) (1) (1) t = 5 ms e t = 5 ms s (1) rise and fall time should be greater than 400 m s/v for immediately correct checking. fig.3 v dd for programming. 1997 dec 12 6 philips semiconductors product speci?cation 32 khz watch circuits with eeprom pca16xx series available types refer to fig.4 and to chapters ordering information and functional description and testing. note 1. u = chip in trays; u/7 = chip with bumps on tape; u/10 = chip on foil. t = sot144-1. short type number delivery format (1) period t t (s) specifications pulse width t p (ms) drive (%) eeprom battery eol detection remarks 1601 u/10 1 7.8 100 yes no 1602 t 1 7.8 75 yes no 1603 u/7 20 7.8 100 yes no 1604 u/10 5 7.8 75 yes no 1605 u/7 5 4.8 75 yes no 1606 u/10 10 6.8 100 yes no 1607 u 5 5.8 100 75 yes no 1.5 v and 2.1 v lithium 1608 u 5 7.8 100 75 yes no 1.5 v and 2.1 v lithium 1611 u 1 6.8 75 yes no 1621 u/7 20 4.8 100 yes no 1622 u 1 4.8 100 yes yes 1623 u 20 4.8 75 yes no 1624 u 12 3.9 75 56 yes no 1.5 v and 2.1 v lithium 1625 u/7 5 5.8 75 yes no 1626 u 20 5.8 100 yes no 1627 u/7 20 5.8 100 75 yes no 1.5 v and 2.1 v lithium 1628 u 20 5.8 75 yes no 1629 u/7 5 6.8 75 yes no fig.4 motor output waveform (normal operation). msa977 v m1 - m2 2t t t t t p 1997 dec 12 7 philips semiconductors product speci?cation 32 khz watch circuits with eeprom pca16xx series limiting values in accordance with the absolute maximum rating system (iec134). note 1. connecting the battery with reversed polarity does not destroy the circuit, but in this condition a large current flows, which will rapidly discharge the battery. handling inputs and outputs are protected against electrostatic discharges in normal handling. however, to be totally safe, it is advisable to take handling precautions appropriate to handling mos devices. advice can be found in data handbook ic16, general, handling mos devices . characteristics v dd = 1.55 v; v ss =0v; f osc = 32.768 khz; t amb =25 c; crystal: r s =20k w ; c 1 = 2 to 3 ff; c l = 8 to 10 pf; c 0 = 1 to 3 pf; unless otherwise speci?ed. immunity against parasitic impedance = 20 m w from one pin to an adjacent pin. symbol parameter conditions min. max. unit v dd supply voltage v ss = 0 v; note 1 - 1.8 +6 v v i all input voltages v ss v dd v output short-circuit duration inde?nite t amb operating ambient temperature - 10 +60 c t stg storage temperature - 30 +100 c symbol parameter conditions min. typ. max. unit supply v dd supply voltage t amb = - 10 to +60 c 1.2 1.5 2.5 v d v dd supply voltage variation transient; v dd = 1.2 to 2.5 v -- 0.25 v v ddp supply voltage pulse programming 5.0 5.1 5.2 v d v ddp supply voltage pulse variation programming 0.55 0.6 0.65 v i dd1 supply current between motor pulses - 170 260 na i dd2 supply current between motor pulses; v dd = 2.1 v - 190 300 na i dd3 supply current stop mode; pin 8 connected to v dd - 180 280 na i dd4 supply current stop mode; pin 8 connected to v dd ; v dd = 2.1 v - 220 360 na i dd5 supply current v dd = 2.1 v; t amb = - 10 to +60 c -- 600 na 1997 dec 12 8 philips semiconductors product speci?cation 32 khz watch circuits with eeprom pca16xx series notes 1. cycle time can be changed to one of the following values: 1, 5, 10, 12 or 20 s (see chapter available types). 2. pulse width can be varied from 2 ms to 15.7 ms in steps of 1 ms (see chapter available types). 3. duty factor is 1 : 32 and reset = v dd or v ss . motor output v sat saturation voltage s (p + n) r l =2k w ; t amb = - 10 to +60 c - 150 200 mv r sc short-circuit resistance s (p + n) i transistor <1ma - 200 300 w t t cycle time note 1 t p pulse width note 2 oscillator v osc st starting voltage 1.2 -- v g m transconductance v i(p-p) 50 mv 6 15 -m s t osc start-up time - 1 - s d f/f frequency stability d v dd = 100 mv - 0.05 10 - 6 0.3 10 - 6 c i input capacitance 8 10 12 pf c o output capacitance 12 15 18 pf voltage level detector v lit threshold voltage lithium mode 1.65 1.80 1.95 v v eol threshold voltage battery end-of-life 1.27 1.38 1.46 v d v vld hysteresis of threshold - 10 - mv tc vld temperature coef?cient -- 1 - mv/k t v voltage detection cycle - 60 - s reset input f o output frequency - 32 - hz d v o output voltage swing r = 1 m w ; c=10pf 1.4 -- v t edge edge time r = 1 m w ; c=10pf - 1 -m s i im peak input current note 3 - 320 - na i i(av) average input current - 10 - na test mode cycle time for motor pulses in: t t1 test 1 - 125 - ms t t2 test 2 - 31.25 - ms t t3 test 3 see chapter available types t deb debounce time reset = v dd 14.7 - 123.2 ms battery end-of-life t eol end-of-life sequence - 4 - s t e1 motor pulse width see available types - t p - ms t e2 time between pulses - 31.25 - ms symbol parameter conditions min. typ. max. unit 1997 dec 12 9 philips semiconductors product speci?cation 32 khz watch circuits with eeprom pca16xx series chip dimensions and bonding pad locations table 2 bonding pad locations (dimensions in m m) all x/y coordinates are referenced to the centre of pad (v dd ), see fig.5. pad x y v ss 1290 1100 test 940 1100 osc in 481 1100 osc out - 102 1100 v dd 00 m1 578 0 m2 930 0 reset 1290 0 chip corner (max. value) - 497.5 - 170 fig.5 bonding pad locations, pca16xxu series, 8 terminals. chip area: 2.91 mm 2 . bonding pad dimensions: 110 m m 110 m m. chip thickness: 200 25 m m, with bumps: 270 25 m m. msa976 0 0 1.44 mm v dd m1 m2 reset v ss test osc in osc out y x 2.02 mm pca16xxu series 1997 dec 12 10 philips semiconductors product speci?cation 32 khz watch circuits with eeprom pca16xx series application information fig.6 typical application circuit diagram. (1) quartz crystal case should be connected to v dd . stray capacitance and leakage resistance from reset, m1 or m2 to osc in should be less than 0.5 pf or larger than 20 m w . msa974 v dd m1 m2 reset v ss test osc in osc out m (1) 1.55 v pca16xx series 1 2 3 4 8 7 6 5 1997 dec 12 11 philips semiconductors product speci?cation 32 khz watch circuits with eeprom pca16xx series package outline unit ce references outline version european projection issue date iec jedec eiaj mm dimensions (mm are the original dimensions) sot144-1 94-01-25 95-01-24 b n max. l m max. h e 0.40 0.25 0.19 0.12 3.1 2.9 3.1 2.9 4.6 4.4 0.80 0.75 0.26 0.3 q 1 q 2 w t 0.40 0.30 0.1 0.40 0.30 0.95 0.90 0.70 l w m b q 2 q 1 0 2.5 5 mm scale note 1. plastic or metal protrusions of 0.15 mm maximum per side are not included. e (1) (1) d e t n pin 1 index 4 1 5 8 d e c m x detail x pmfp8: plastic micro flat package; 8 leads (straight) sot144-1 a 2 a 2 h e 1997 dec 12 12 philips semiconductors product speci?cation 32 khz watch circuits with eeprom pca16xx series soldering introduction there is no soldering method that is ideal for all ic packages. wave soldering is often preferred when through-hole and surface mounted components are mixed on one printed-circuit board. however, wave soldering is not always suitable for surface mounted ics, or for printed-circuits with high population densities. in these situations reflow soldering is often used. this text gives a very brief insight to a complex technology. a more in-depth account of soldering ics can be found in our ic package databook (order code 9398 652 90011). re?ow soldering reflow soldering techniques are suitable for all so packages. reflow soldering requires solder paste (a suspension of fine solder particles, flux and binding agent) to be applied to the printed-circuit board by screen printing, stencilling or pressure-syringe dispensing before package placement. several techniques exist for reflowing; for example, thermal conduction by heated belt. dwell times vary between 50 and 300 seconds depending on heating method. typical reflow temperatures range from 215 to 250 c. preheating is necessary to dry the paste and evaporate the binding agent. preheating duration: 45 minutes at 45 c. wave soldering wave soldering techniques can be used for all so packages if the following conditions are observed: a double-wave (a turbulent wave with high upward pressure followed by a smooth laminar wave) soldering technique should be used. the longitudinal axis of the package footprint must be parallel to the solder flow. the package footprint must incorporate solder thieves at the downstream end. during placement and before soldering, the package must be fixed with a droplet of adhesive. the adhesive can be applied by screen printing, pin transfer or syringe dispensing. the package can be soldered after the adhesive is cured. maximum permissible solder temperature is 260 c, and maximum duration of package immersion in solder is 10 seconds, if cooled to less than 150 c within 6 seconds. typical dwell time is 4 seconds at 250 c. a mildly-activated flux will eliminate the need for removal of corrosive residues in most applications. repairing soldered joints fix the component by first soldering two diagonally- opposite end leads. use only a low voltage soldering iron (less than 24 v) applied to the flat part of the lead. contact time must be limited to 10 seconds at up to 300 c. when using a dedicated tool, all other leads can be soldered in one operation within 2 to 5 seconds between 270 and 320 c. 1997 dec 12 13 philips semiconductors product speci?cation 32 khz watch circuits with eeprom pca16xx series definitions life support applications these products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. philips customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify philips for any damages resulting from such improper use or sale. data sheet status objective speci?cation this data sheet contains target or goal speci?cations for product development. preliminary speci?cation this data sheet contains preliminary data; supplementary data may be published later. product speci?cation this data sheet contains ?nal product speci?cations. limiting values limiting values given are in accordance with the absolute maximum rating system (iec 134). stress above one or more of the limiting values may cause permanent damage to the device. these are stress ratings only and operation of the device at these or at any other conditions above those given in the characteristics sections of the speci?cation is not implied. exposure to limiting values for extended periods may affect device reliability. application information where application information is given, it is advisory and does not form part of the speci?cation. 1997 dec 12 14 philips semiconductors product speci?cation 32 khz watch circuits with eeprom pca16xx series notes 1997 dec 12 15 philips semiconductors product speci?cation 32 khz watch circuits with eeprom pca16xx series notes internet: http://www.semiconductors.philips.com philips semiconductors C a worldwide company ? philips electronics n.v. 1997 sca54 all rights are reserved. reproduction in whole or in part is prohibited without the prior written consent of the copyright owne r. the information presented in this document does not form part of any quotation or contract, is believed to be accurate and reli able and may be changed without notice. no liability will be accepted by the publisher for any consequence of its use. publication thereof does not con vey nor imply any license under patent- or other industrial or intellectual property rights. netherlands: postbus 90050, 5600 pb eindhoven, bldg. vb, tel. +31 40 27 82785, fax. +31 40 27 88399 new zealand: 2 wagener place, c.p.o. box 1041, auckland, tel. +64 9 849 4160, fax. +64 9 849 7811 norway: box 1, manglerud 0612, oslo, tel. +47 22 74 8000, fax. +47 22 74 8341 philippines: philips semiconductors philippines inc., 106 valero st. salcedo village, p.o. box 2108 mcc, makati, metro manila, tel. +63 2 816 6380, fax. +63 2 817 3474 poland: ul. lukiska 10, pl 04-123 warszawa, tel. +48 22 612 2831, fax. +48 22 612 2327 portugal: see spain romania: see italy russia: philips russia, ul. usatcheva 35a, 119048 moscow, tel. +7 095 755 6918, fax. +7 095 755 6919 singapore: lorong 1, toa payoh, singapore 1231, tel. +65 350 2538, fax. +65 251 6500 slovakia: see austria slovenia: see italy south africa: s.a. philips pty ltd., 195-215 main road martindale, 2092 johannesburg, p.o. box 7430 johannesburg 2000, tel. +27 11 470 5911, fax. +27 11 470 5494 south america: rua do rocio 220, 5th floor, suite 51, 04552-903 s?o paulo, s?o paulo - sp, brazil, tel. +55 11 821 2333, fax. +55 11 829 1849 spain: balmes 22, 08007 barcelona, tel. +34 3 301 6312, fax. +34 3 301 4107 sweden: kottbygatan 7, akalla, s-16485 stockholm, tel. +46 8 632 2000, fax. +46 8 632 2745 switzerland: allmendstrasse 140, ch-8027 zrich, tel. +41 1 488 2686, fax. +41 1 481 7730 taiwan: philips semiconductors, 6f, no. 96, chien kuo n. rd., sec. 1, taipei, taiwan tel. +886 2 2134 2865, fax. +886 2 2134 2874 thailand: philips electronics (thailand) ltd., 209/2 sanpavuth-bangna road prakanong, bangkok 10260, tel. +66 2 745 4090, fax. +66 2 398 0793 turkey: talatpasa cad. no. 5, 80640 gltepe/istanbul, tel. +90 212 279 2770, fax. +90 212 282 6707 ukraine : philips ukraine, 4 patrice lumumba str., building b, floor 7, 252042 kiev, tel. +380 44 264 2776, fax. +380 44 268 0461 united kingdom: philips semiconductors ltd., 276 bath road, hayes, middlesex ub3 5bx, tel. +44 181 730 5000, fax. +44 181 754 8421 united states: 811 east arques avenue, sunnyvale, ca 94088-3409, tel. +1 800 234 7381 uruguay: see south america vietnam: see singapore yugoslavia: philips, trg n. pasica 5/v, 11000 beograd, tel. +381 11 625 344, fax.+381 11 635 777 for all other countries apply to: philips semiconductors, marketing & sales communications, building be-p, p.o. box 218, 5600 md eindhoven, the netherlands, fax. +31 40 27 24825 argentina: see south america australia: 34 waterloo road, north ryde, nsw 2113, tel. +61 2 9805 4455, fax. +61 2 9805 4466 austria: computerstr. 6, a-1101 wien, p.o. box 213, tel. +43 1 60 101, fax. +43 1 60 101 1210 belarus: hotel minsk business center, bld. 3, r. 1211, volodarski str. 6, 220050 minsk, tel. +375 172 200 733, fax. +375 172 200 773 belgium: see the netherlands brazil: see south america bulgaria: philips bulgaria ltd., energoproject, 15th floor, 51 james bourchier blvd., 1407 sofia, tel. +359 2 689 211, fax. +359 2 689 102 canada: philips semiconductors/components, tel. +1 800 234 7381 china/hong kong: 501 hong kong industrial technology centre, 72 tat chee avenue, kowloon tong, hong kong, tel. +852 2319 7888, fax. +852 2319 7700 colombia: see south america czech republic: see austria denmark: prags boulevard 80, pb 1919, dk-2300 copenhagen s, tel. +45 32 88 2636, fax. +45 31 57 0044 finland: sinikalliontie 3, fin-02630 espoo, tel. +358 9 615800, fax. +358 9 61580920 france: 4 rue du port-aux-vins, bp317, 92156 suresnes cedex, tel. +33 1 40 99 6161, fax. +33 1 40 99 6427 germany: hammerbrookstra?e 69, d-20097 hamburg, tel. +49 40 23 53 60, fax. +49 40 23 536 300 greece: no. 15, 25th march street, gr 17778 tavros/athens, tel. +30 1 4894 339/239, fax. +30 1 4814 240 hungary: see austria india: philips india ltd, shivsagar estate, a block, dr. annie besant rd. worli, mumbai 400 018, tel. +91 22 4938 541, fax. +91 22 4938 722 indonesia: see singapore ireland: newstead, clonskeagh, dublin 14, tel. +353 1 7640 000, fax. +353 1 7640 200 israel: rapac electronics, 7 kehilat saloniki st, po box 18053, tel aviv 61180, tel. +972 3 645 0444, fax. +972 3 649 1007 italy: philips semiconductors, piazza iv novembre 3, 20124 milano, tel. +39 2 6752 2531, fax. +39 2 6752 2557 japan: philips bldg 13-37, kohnan 2-chome, minato-ku, tokyo 108, tel. +81 3 3740 5130, fax. +81 3 3740 5077 korea: philips house, 260-199 itaewon-dong, yongsan-ku, seoul, tel. +82 2 709 1412, fax. +82 2 709 1415 malaysia: no. 76 jalan universiti, 46200 petaling jaya, selangor, tel. +60 3 750 5214, fax. +60 3 757 4880 mexico: 5900 gateway east, suite 200, el paso, texas 79905, tel. +9-5 800 234 7381 middle east: see italy printed in the netherlands 417087/1200/03/pp16 date of release: 1997 dec 12 document order number: 9397 750 03142 |
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