PHILIPS PCA16xx series handbook
Contents
1. TYPE NUMBER PCA1608U chip in tray a PCA1621U 7 chip with bumps on tape oe jimmy PCA1623U 7 chip with bumps on tape a E PCA1625U 7 chip with bumps on tape oris iini e PCA1627U 7 chip with bumps on tape orar PCA1629U 7 chip with bumps on tape 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 1997 Dec 12 2 Philips Semiconductors 32 kHz watch circuits with EEPROM PINNING SYMBOL PIN Vss DESCRIPTION ground 0 V php TEST test output oscillator input O oscillator output positive supply voltage OSC IN OSC OUT motor 1 output motor 2 output 2 m n 4 reset input FUNCTIONAL DESCRIPTION AND TESTING Motor pulse The motor pulse width tp and the cycle times tr are given in Chapter Available types Voltage level detector The supply voltage is compared with the internal voltage reference V and Vgo every minute The first voltage level detection is carried out 30 ms after a RESET Lithium mode If a lithium voltage is detected Vir the circuit will operate in the lithium mode The motor pulse will be produced2. PCA16x siei INTEGRATED CIRCUITS DATA SHEET PCA16xx series 32 kHz watch circuits with EEPROM Product specification 1997 Dec 12 Supersedes data of 1997 Apr 21 File under Integrated Circuits IC16 Philips PHILIPS Semiconductors DH LI p Philips Semiconductors Product specification 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 e Stop function for accurate timing Power on reset for fast testing e 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 Indication for battery end of life ORDERING INFORMATION PACKAGE DESCRIPTION VERSION PCA1601U 10 chip on foil PCA1602T plastic micro flat package 8 leads straight SOT144 1 PCA1603U 7 chip with bumps on tape PCA1604U 10 chip on foil siphon ape 1 6061 10 chip on foil ee
3. 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 HammerbrookstraBe 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 For all other countries apply to Philips Semiconductors Marketing amp Sales Commun
4. 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 Philips Semiconductors Product specification 32 kHz watch circuits with EEPROM PCA16xx series DEFINITIONS Data sheet status Objective specification This data sheet contains target or goal specifications for product development Preliminary specification This data sheet contains preliminary data supplementary data may be published later Product specification This data sheet contains final product specifications 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 specification 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 specification LIFE SUPPORT APPLICATIONS These products are not designed for use in life support appliances devices or systems where malfun
5. mode The time calibration can be reprogrammed up to 100 times SIGNAL GENERATOR PCA16xx SERIES 32 kHz OSC OUT MSA975 Fig 2 Circuit for programming the time calibration Product specification Philips Semiconductors PCA16xx series 32 kHz watch circuits with EEPROM 8r6VSIN BuiwiwesBoud 614 Burgoeuo 1284109 10 A STl OOP uey eq pjnous euin e pue esiH 1 SNIMOSHO ONIHOLS LAdNI VLVG sw 3 3unsvua DNIMO3HO LNALNOO Qaa 1997 Dec 12 Philips Semiconductors Product specification 32 kHz watch circuits with EEPROM PCA16xx series AVAILABLE TYPES Refer to Fig 4 and to Chapters Ordering information and Functional description and testing SPECIFICATIONS SHORT PERIOD TYPE DELIVERY BATTERY 1 NUMBER FORMAT EOL 1601 U 10 1602 2 1 V Lithium 1 5 V and 2 1 V Lithium 2 1 V Lithium Note 1 U Chip in trays U 7 chip with bumps on tape U 10 chip on foil T 2 SOT144 1 VM1 M2 M iT ads sc 2t T MSA977 Fig 4 Motor output waveform normal operation 1997 Dec 12 6 Philips Semiconductors Product specification 32 kHz watch circuits with EEPROM PCA16xx series LIMITING VALUES In accordance with the Absolute
6. ms in steps of 1 ms see Chapter Available types 3 Duty factor is 1 32 and RESET Vpp or Vss 1997 Dec 12 8 Philips Semiconductors Product specification 32 kHz watch circuits with EEPROM PCA16xx series CHIP DIMENSIONS AND BONDING PAD LOCATIONS OSC OUT OSC IN TEST Vss L LI O O PCA16xxU 1 44 mm SERIES K ep EE Vpp M1 M2 RESET 2 02 mm MSA976 Chip area 2 91 mm Bonding pad dimensions 110 um x 110 um Chip thickness 200 25 um with bumps 270 25 um Fig 5 Bonding pad locations PCA16xxU series 8 terminals Table 2 Bonding pad locations dimensions in um All x y coordinates are referenced to the centre of pad Vpp see Fig 5 PAD Vss 1290 1100 OSC IN 481 1100 Vpp 0 18 E E34 M2 930 0 RESET 0 chip corner max value 170 1997 Dec 12 9 Philips Semiconductors Product specification 32 kHz watch circuits with EEPROM PCA16xx series APPLICATION INFORMATION 1 55 V V SS RESET gt TEST PCA16xx 1 OSC IN SERIES Tl oscouT MSA974 1 Quartz crystal case should be connected to Vpp Stray capacitance and leakage resistance from RESET M1 or M2 to OSC IN should be less than 0 5 pF or larger than 20 MO Fig 6 Typical application circuit diagram 1997 Dec 12 10 Philips Semiconductors Product specification 32 kHz watch circuits with EEPROM PCA16xx serie
7. with a 7596 duty factor Silver oxide mode If the voltage level detected is between V jy and the circuit will operate in silver oxide mode Battery end of life If the battery end of life is detected Vpp lt Veo 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 Vpp 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 Vy Vm2 2 0 V 1 Only available for types with a 1 s motor pulse 1997 Dec 12 Product specification PCA16xx series MSA973 Fig 1 Pin configuration PCA16xxT PMFP8 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 Vpp Connecting the RESET to Vpp 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 tpgg 14 7 to 123 2 ms Connecting RESET to Vss activates Tests 1 and 2 and disables the time calibration Test 1 Vpp gt VeoL Normal function takes place except the voltage de
8. Maximum Rating System IEC134 SYMBOL PARAMETER CONDITIONS MIN MAX UNIT supply voltage Vss 0 V note 1 all input voltages output short circuit duration 1 8 6 Vss operating ambient temperature Tstg storage temperature 1 3 Vpp indefinite 0 100 V C C 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 IC 16 General Handling MOS Devices CHARACTERISTICS Vpp 1 55 V Vss 0 V fos 32 768 kHz Tamb 25 C crystal Rg 20 2 to 3 fF 8 to 10 pF 1 to 3 pF unless otherwise specified Immunity against parasitic impedance 20 MQ from one pin to an adjacent pin SYMBOL PARAMETER Supply CONDITIONS Tamb 10 to 60 C MIN Vpp supply voltage AVDD supply voltage variation transient Vpp 1 2 to 2 5 V programming VppP supply voltage pulse AV ppp supply voltage pulse variation programming between motor pulses Ipp1 supply current Ipp2 supply current between motor pulses Vpp 2 1 V supply current stop mode pin 8 connected t
9. ction 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 1997 Dec 12 13 Philips Semiconductors Product specification 32 kHz watch circuits with EEPROM PCA16xx series NOTES 1997 Dec 12 14 Philips Semiconductors Product specification 32 kHz watch circuits with EEPROM PCA16xx series NOTES 1997 Dec 12 15 Philips Semiconductors 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
10. e 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 1997 Dec 12 12 Product specification PCA16xx series 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
11. g circuit is shown in Fig 2 The required number n is programmed into EEPROM by varying Vpp according to the steps shown in Fig 3 which are explained below 1 The positive quartz frequency deviation Af f is measured and the corresponding values of n are found according to Table 1 2 Vppis increased to 5 1 V allowing the contents of the EEPROM to be checked from the motor pulse period at nominal frequency Table 1 FREQUENCY DEVIATION Af f Quartz crystal frequency deviation n and trs NUMBER OF PULSES x 10 5 127 89 63 38 936 Notes 1 Increments of 2 03 x 10 6 2 Increments of 122 us step 1997 Dec 12 Product specification PCA16xx series 3 Vppis decreased to 2 5 V during a motor pulse to initialize a storing sequence 4 The first Vpp 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 Vppis increased to 5 1 V to read the data by pulsing Vpp n times to 4 5 V After the n edge Vpp is decreased to 2 5 V 7 Vpp is increased to 5 1 V to store n bits in the EEPROM 8 Vppis decreased to 2 5 V to terminate the storing sequence and to return to operating mode 9 Vppis increased to 5 1 V to check writing from the motor pulse period tra 10 Vpp is decreased to the operation voltage between two motor pulses to return to operating mode Decreasing Vpp during the motor pulse would restart the programming
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14. o 280 VDD stop mode pin 8 connected to Vpp 2 1V Ipp4 supply current Ipps supply current 1997 Dec 12 2 1 V Tamb 10 to 60 Philips Semiconductors Product specification 32 kHz watch circuits with EEPROM PCA16xx series SYMBOL PARAMETER CONDITIONS Motor output saturation voltage gt P N 2 Tamb 10 to 60 C 200 mV 0 Q Hsc short circuit resistance X P ltransistor lt 1 mA 200 30 tr cycle time note 1 P t pulse width note 2 Oscillator m Vosc sT starting voltage 1 2 g transconductance 6 15 tose start up time 1 10 6 106 8 10 Ci input capacitance output capacitance 12 15 Voltage level detector threshold voltage lithium mode 1 80 1 95 threshold voltage battery end of life 1 27 1 38 1 46 AVwyLD hysteresis of threshold temperature coefficient voltage detection cycle AVo output voltage swing R 1MQ C 10pF ledge edge time R 1MO9 C 10pF cycle time for motor pulses in test 1 test 2 test 3 types debounce time RESET Vpp ms Battery end of life tEoL end of life sequence motor pulse width see Available types t b ms tgo time between pulses 31 25 ms 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
15. r industrial or intellectual property rights Printed in The Netherlands 417087 1200 03 pp16 Philips Semiconductors Date of release 1997 Dec 12 Document order number 9397 750 03142 4 make things bett S PHILIPS
16. s PACKAGE OUTLINE PMFP8 plastic micro flat package 8 leads straight SOT144 1 L EN DIMENSIONS mm are the original dimensions UNIT DO E 3 1 3 1 2 9 2 9 Note 1 Plastic or metal protrusions of 0 15 mm maximum per side are not included OUTLINE REFERENCES EUROPEAN VERSION JEDEC EIAJ PROJECTION SOT144 1 95 01 24 ISSUE DATE 1997 Dec 12 11 Philips Semiconductors 32 kHz watch circuits with EEPROM 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 Reflow 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 befor
17. tection cycle ty is 125 ms and the cycle time ty is 31 25 ms At pin TEST a minute signal is available at 8192 times its normal frequency Test 22 Vpp lt Vgo The voltage detection cycle ty is 31 25 ms and the motor pulse period tro 31 25 ms Test and reset mode are terminated by disconnecting the RESET pin Test 3 Vpp gt 5 1 V Motor pulses with a time period of tra 31 25 ms and n x 122 us are produced to check the contents of the EEPROM At pin TEST the motor pulse period signal tr is available at 1024 times its normal frequency The circuit returns to normal operation when Vpp 2 5 V between two motor pulses 2 Only applicable for types with the battery end of life detector Philips Semiconductors 32 kHz watch circuits with EEPROM Time calibration Taking a normal quartz crystal with frequency 32 768kHz frequency deviation Af f of 15 x 10 8 and C 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 device s EEPROM This causes n pulses of frequency 8192 Hz to be inhibited every minute of operation which achieves the required calibration The programmin
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PHILIPS PCA16xx series handbook