pca146x NXP Semiconductors, pca146x Datasheet
pca146x
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pca146x Summary of contents
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... DATA SHEET PCA146x series 32 kHz watch circuits with adaptive motor pulse Product specification Supersedes data of 1998 Mar 18 File under Integrated Circuits, IC16 INTEGRATED CIRCUITS 1998 Apr 21 ...
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... Figure 1 and Chapter “Package outline” show details of standard package, available for large orders only. Chapter “Chip dimensions and bonding pad locations” shows exact pad locations for other delivery formats. 1998 Apr 21 PCA146x series GENERAL DESCRIPTION The PCA146x series devices are CMOS integrated circuits specially suited for battery-operated, quartz-crystal-controlled wrist-watches, with a bipolar stepping motor. (1) ...
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... DF in steps of 6.25% per stage. 1998 Apr 21 DESCRIPTION Fig.1 Pin configuration, PCA146xT, (PMFP8). In the lithium mode, the ON state of the motor pulse is reduced by 18.75% of the duty factor t compensate for the increase in the voltage level. After a RESET the circuit always starts and continues with stage 1, when all motor pulses have been executed ...
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... Philips Semiconductors 32 kHz watch circuits with adaptive motor pulse DETECTION MOTOR PULSE Fig.2 Possible motor output waveform in normal operation with motor connected. 1998 Apr 21 POSSIBLE CORRECTION SEQUENCE Product specification PCA146x series MSA942 ...
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Acrobat reader. white to force landscape pages to be ... t = 488 s SONF STAGE 1 STAGE 2 STAGE 3 STAGE 4 STAGE ...
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Acrobat reader. white to force landscape pages to be ... t = 244 183 s LONF AOFF STAGE 1 STAGE 2 ...
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... D3 and D2 and D1. Then LIT the first of 52 possible measurement cycles (t measure the induced current. < the DD EOL MOTOR M2 D3 Fig.5 Motor driving and detecting circuit. 7 Product specification PCA146x series MSA941 for DD (dissipation of ) starts to MC ...
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... Philips Semiconductors 32 kHz watch circuits with adaptive motor pulse Detection criteria The PCA146x uses current detection in two defined parts of the detection phase to determine if the motor has moved (refer to Figs 6 and 7). The detection criteria are: part 1 Minimum value where P = number of measured positive current polarities after t part 2 Minimum value ...
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... current polarity not measured 244 Product specification PCA146x series DETECTION PHASE detection criterion is satisfied t = 488 detection criterion is satisfied = 488 244 ...
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... PULSE Fig.8 Correction sequence after a missing motor step with motor connected. 1998 Apr turn the motor. C2 DETECTION CORRECTION SEQUENCE 977 Product specification PCA146x series ) which gives the motor 30. MSA943 ...
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... Fig.9 Circuit for programming the time calibration. 11 Product specification PCA146x series is decreased to 2.5 V during a motor pulse to pulse to 5.1 V erases the contents increased to 5 read the data by pulsing n times to 4.5 V. After the n edge increased to 5 store n bits in the is decreased to 2 ...
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Acrobat reader. white to force landscape pages to be ... CONTENT CHECKING I DD 5.1 4 ( ...
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... 5.8 max. 100 3.9 max. 100 5.8 max. 100 7.8 max. 100 PCA146x series > Normal function takes place except DD EOL = 125 ms instead < Motor pulses of stage 8 are produced, DD EOL = 31.25 ms. T2 > 5.1 V. Motor pulses of stage 8 are DD = 31.25 ms and T3 voltage level to lower than 2.5 V between ...
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... 2 +60 C amb ( + amb between motor pulses I < transistor 14 Product specification PCA146x series MIN. MAX. 1 indefinite 10 +60 30 +100 = fF pF MIN ...
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... I average input current i(av) Note 1. Duty factor and RESET = V 1998 Apr 21 CONDITIONS i(p- 100 note Product specification PCA146x series MIN. TYP. MAX. 1 0. 1.62 1.80 1.98 1 ...
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... P 31.25 detection (Fig.7) 4.3 to 28.3 977 977 488 244 61 122 correction sequence (Fig. 977 t P testing 125 31.25 Fig.10 31. 14.7 to 123.2 16 Product specification PCA146x series VALUE OPTION UNIT 5, 10 3 < ...
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... CHIP DIMENSIONS AND BONDING PAD LOCATIONS 1. Chip area: 2. Bonding pad dimensions: 110 m 110 m. Chip thickness: 200 25 m, with bumps: 270 25 m. Fig.11 Bonding pad locations, PCA146xU series; 8 terminals. Table 3 Bonding pad locations (dimensions in m) All x/y coordinates are referenced to bottom left pad (V PAD V SS TEST OSC IN ...
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... Stray capacitance and leakage resistance from RESET OSC IN should be less than should be less than Fig.12 Typical application circuit diagram. 18 Product specification PCA146x series RESET ( ( MSA939 = 80 pF for correct operation of the detection circuit. ...
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... SOT144-1 1998 Apr pin 1 index 2.5 scale (1) ( 3.1 3.1 4.6 0.80 0.75 2.9 2.9 4.4 REFERENCES JEDEC EIAJ 19 PCA146x series detail max. max. 0.40 0.40 0.26 0.3 0.30 0.30 EUROPEAN PROJECTION Product specification SOT144 0.95 0.1 ISSUE DATE ...
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... V) applied to the flat part of the lead. Contact time must be limited to 10 seconds 300 C. When using a dedicated tool, all other leads can be soldered in one operation within seconds between 270 and 320 C. 20 Product specification PCA146x series ...
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... Philips customers using or selling these products for use in such applications their own risk and agree to fully indemnify Philips for any damages resulting from such improper use or sale. 1998 Apr 21 21 Product specification PCA146x series ...
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... Philips Semiconductors 32 kHz watch circuits with adaptive motor pulse 1998 Apr 21 NOTES 22 Product specification PCA146x series ...
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... Philips Semiconductors 32 kHz watch circuits with adaptive motor pulse 1998 Apr 21 NOTES 23 Product specification PCA146x series ...
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Philips Semiconductors – a worldwide company 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. +43 160 1010, ...