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d a t a sh eet product speci?cation supersedes data of 1997 mar 07 file under integrated circuits, ic18 1997 oct 28 integrated circuits pca82c252 fault-tolerant can transceiver
1997 oct 28 2 philips semiconductors product speci?cation fault-tolerant can transceiver pca82c252 features optimized for in-car low-speed communication baud rate up to 125 kbaud up to 15 nodes can be connected supports unshielded bus wires low rfi due to built-in slope control function fully integrated receiver filters. bus failure management supports one-wire transmission modes with ground offset voltages up to 1.5 v automatic switching to single-wire mode in the event of bus failure automatic reset to differential mode if bus failure is removed. protection short-circuit proof to battery and ground in 12 v powered systems thermally protected bus lines protected against transients in an automotive environment an unpowered node does not disturb the bus lines. support for low-power modes low current sleep/standby mode with wake-up via the bus lines power-on reset flag on the output. general description the pca82c252 is the interface between the can protocol controller and the physical bus. it is primarily intended for low-speed applications, up to 125 kbaud, in passenger cars. the device provides differential transmit capability but will switch in error conditions to a single-wire transmitter and/or receiver. quick reference data ordering information symbol parameter conditions min. typ. min. unit v cc supply voltage 4.75 - 5.25 v v bat battery voltage no time limit - 0.3 - +27 v operating 6.0 - 27 v load dump -- 40 v i sleep sleep mode current v cc =0v; v bat =12v - 50 -m a v canh ,v canl canh, canl input voltage v cc = 0 to 5.5 v; v bat 3 0v; no time limit - 10 - +27 v v cc = 0 to 5.5 v; v bat 3 0v; t < 0.1 ms; load dump - 40 - +40 v v drop(h) canh transmitter drop voltage i canh =40ma -- 1.4 v v drop(l) canl transmitter drop voltage i canl =40ma -- 1.4 v t pd propagation delay txd to rxd - 1 -m s t f bus output fall time 90% to 10% - 0.5 -m s t r bus output rise time 10% to 90% - 0.5 -m s t amb operating ambient temperature - 40 - +125 c type number package name description version PCA82C252T so14 plastic small outline package; 14 leads; body width 3.9 mm sot108-1
1997 oct 28 3 philips semiconductors product speci?cation fault-tolerant can transceiver pca82c252 block diagram fig.1 block diagram. handbook, full pagewidth mbh548 failure detector plus wake up plus time-out wake-up standby control inh 1 wake 7 stb 5 en 6 txd v cc 2 nerr 4 rxd 3 temperature protection driver receiver 16 k w bat 14 v cc 10 13 gnd filter filter pca82c252 9 11 12 8 rtl canh canl rth
1997 oct 28 4 philips semiconductors product speci?cation fault-tolerant can transceiver pca82c252 pinning symbol pin description inh 1 inhibit output for switching external 5 v regulator txd 2 transmit data input, when low bus data will be dominant, when high bus data will be recessive rxd 3 receive data output, when low bus data will be dominant nerr 4 error output pin, when low a bus error exists stb 5 not standby digital control input signal (active low) en 6 enable digital control input signal w ake 7 not wake input signal, when pulled down inh becomes active for wake-up (active low) rth 8 termination resistor, canh line will be high-impedance with certain bus errors rtl 9 termination resistor, canl line will be high-impedance with certain bus errors v cc 10 supply voltage (+5 v) canh 11 high voltage bus line, will be high in dominant state canl 12 low voltage bus line, will be low in dominant state gnd 13 ground bat 14 battery voltage fig.2 pin configuration. handbook, halfpage pca82c252 mbg621 1 inh 2 3 4 5 6 7 14 bat txd gnd rxd canl nerr canh stb v cc en rtl wake rth 13 12 11 10 9 8
1997 oct 28 5 philips semiconductors product speci?cation fault-tolerant can transceiver pca82c252 functional description the pca82c252 is the interface between the can protocol controller and the physical bus. it is primarily intended for low speed applications, up to 125 kbaud, in passenger cars. the device provides differential transmit capability to the bus and differential receive capability to the can controller. to reduce rf interference the rise and fall slope are limited. this allows the use of an unshielded twisted pair or a parallel pair of wires for the bus. moreover, it supports transmission capability on either bus wire if one of the bus wires is corrupted. the failure detection logic automatically selects a suitable transmission mode. in normal operation (no wiring failures) the differential receiver is output to rxd. the differential receiver inputs are connected to canh and canl through integrated filters. the filtered input signals are also used for the single wire receivers. the canh and canl receivers have threshold voltages that ensure a maximum noise margin in single-wire modes. failure detector the failure detector is active in the normal operation mode and detects the following single bus failures and switches to an appropriate mode: 1. canh wire interrupted 2. canl wire interrupted 3. canh short-circuited to battery 4. canl short-circuited to ground 5. canh short-circuited to ground 6. canl short-circuited to battery 7. canl mutually shorted to canh. the differential receiver threshold is set at - 2.9 v. this ensures correct reception in the normal operating modes and, in the event of failures 1, 2 and 5 with a noise margin as high as possible. these failures, or recovery from them, do not destroy ongoing transmissions. to ensure speed requirements the differential receiver has an acceleration function. failures 3 and 6 are detected by comparators connected to canh and canl, respectively. if the comparator threshold is exceeded for a certain period of time, the reception is switched to the single-wire mode. this time is needed to avoid false triggering by external rf fields. recovery from these failures is detected automatically after a certain time-out (filtering) and no transmission is lost. failures 4 and 7 initially result in a permanent dominant level at rxd. after a time-out, the canl driver and the rtl pin are switched off. only a weak pull-up at rtl remains. reception continues by switching to the single-wire mode via canh. when failures 4 or 7 are removed, the recessive bus levels are restored. if the differential voltage remains below the recessive threshold level for a certain period of time, reception and transmission switch back to the differential mode. if any of the seven wiring failures occur, the output nerr will be made low. on error recovery, nerr will be made high again. during all single-wire transmissions, the emc performance (both immunity and emission) is worse than in the differential mode. integrated receiver filters suppress any hf noise induced into the bus wires. the cut-off frequency of these filters is a compromise between propagation delay and hf suppression. in the single-wire mode, low frequency noise cannot be distinguished from the required signal. low power modes the transceiver provides 3 low power modes which can be entered and exited via pins stb and en. the sleep mode is the mode with the lowest power consumption. the inh pin is switched to high-impedance for deactivation of external voltage regulators. canl is biased to the battery voltage via the rtl output. if the supply voltage is provided the rxd and nerr will signal the wake-up interrupt the v bat standby mode will react the same as the sleep mode with an active inh output. the v cc standby mode is the v bat standby with rtl switched to the v cc voltage. in this mode the nerr output signals the v bat power-on flag and the rxd output will show the wake-up interrupt. wake-up requests are recognized by the transceiver when a dominant signal is detected on either bus line or if the wake pin is connected to ground. on a wake-up request the transceiver will set the inh output which can be used to activate the external v cc voltage regulator. if v cc is provided the wake-up request can be read on the nerr or rxd outputs, on which the external microcontroller can wake up the transceiver (switch to normal operating mode) via stb and en.
1997 oct 28 6 philips semiconductors product speci?cation fault-tolerant can transceiver pca82c252 to prevent false wake-up due to transients or rf fields, wake-up voltage threshold levels have to be maintained for a certain period of time. in the low power modes the failure detection circuit remains partly active to prevent increased power consumption should errors 3, 4 and 7 occur. power on after power-on v bat is switched on, the inh pin will become high and an internal power-on flag will be set. this flag can be read via the nerr pin ( stb = 1, en = 0) and will be reset by entering the normal operation mode. the en and stb pins will internally be set to low level, if the v cc voltage is below a certain threshold level, to provide fail safe functionality. protections a current limiting circuit protects the transmitter output stages against short-circuit to positive and negative battery voltage. if the junction temperature exceeds a maximum value, the transmitter output stages are disabled. because the transmitter is responsible for the major part of the power dissipation, this will result in a reduced power dissipation and hence a lower chip temperature. all other parts of the ic will remain operating. the canh and canl inputs are protected against electrical transients which may occur in an automotive environment. table 1 truth table of can transceiver notes 1. wake-up interrupts are released when entering normal operating mode. 2. if go to sleep command was used before (en may turn low as v cc drops, without affecting internal functions because of fail safe functionality). 3. v bat power-on flag will be reset when entering normal operation mode. stb en mode inh nerr rxd rtl 00v bat standby (1) high low active wake-up interrupt signal if v cc is present switched to v bat 0 0 sleep (2) ?oating switched to v bat 0 1 go to sleep command ?oating switched to v bat 10v cc standby (3) high low active v bat power-on ?ag low active wake-up interrupt switched to v cc 1 1 normal operation mode high low active error ?ag high = receive; low = dominant received data switched to v cc
1997 oct 28 7 philips semiconductors product speci?cation fault-tolerant can transceiver pca82c252 limiting values in accordance with the absolute maximum rating system (iec 134). notes 1. junction temperature in accordance with iec 747-1. an alternative definition is: t vj =t amb +pd r th vj-a . where; r th vj-a is a fixed value to be used for the calculation of t vj . the rating for t vj limits the allowable combinations of power dissipation and ambient temperature. 2. human body model: equivalent to discharging a 100 pf capacitor through a 1.5 k w resistor. 3. machine model: equivalent to discharging a 200 pf capacitor through a 25 w resistor. thermal characteristics quality specification quality specification in accordance with snw-fq-611-part-e . symbol parameter conditions min. max. unit v cc supply voltage - 0.3 +6.0 v v dd dc input voltage at pins 2 to 6 - 0.3 v cc + 0.3 v v bus dc input voltage at pins 11 and 12 - 10 +27 v v canh,l dc input voltage at pins 11 and 12 v cc =0to5.5v; v bat 3 0 v; t < 0.1 ms; load dump - 40 +40 v v tr transient voltage at pins 11 and 12 see fig.6 - 150 +100 v v w ake dc input voltage on pin 7 - v bat + 0.3 v i w ake input current pin 7 - 15 - ma v 1,8,9 dc input voltage on pins 1, 8 and 9 - 0.3 v bat + 0.3 v v bat dc input voltage on pin 14 - 0.3 +27 v voltage on pin 14 load dump; 500 ms - 40 v r 8,9 termination resistances pins 8 and 9 500 16000 w t vj virtual junction temperature note 1 - 40 +150 c t stg storage temperature - 55 +150 c v esd electrostatic discharge voltage at any pin note 2 - 2000 +2000 v note 3 - 200 +200 v symbol parameter conditions value unit r th vj-a thermal resistance from junction to ambient in free air 120 k/w
1997 oct 28 8 philips semiconductors product speci?cation fault-tolerant can transceiver pca82c252 characteristics v cc = 4.75 to 5.25 v; v stb =v cc ; v bat =6vto27v; t amb = - 40 to +125 c; unless otherwise specified. all voltages are de?ned with respect to ground. positive currents ?ow into the ic. all parameters are guaranteed over the temperature range by design, but only 100% tested at 25 c. symbol parameter conditions min. typ. max. unit supplies i cc supply current recessive; txd = v cc ; normal operating mode - 610 ma dominant; tx d=0v; no load; normal operating mode - 29 35 ma i cc +i bat supply current (v cc standby) v cc =5v; v bat =12v; t amb <90 c - 120 1000 m a supply current (v bat standby) v cc =5v; v bat =12v; t amb <90 c - 55 80 m a i bat supply current (sleep mode) v cc =0v; v bat =12v; t amb <90 c - 50 75 m a v bat battery voltage for setting power-on ?ag low power modes -- 1.0 v t pwon battery voltage low time for setting power-on ?ag low power modes 1 -- s pins stb, en and txd v ih high level input voltage 0.7v cc - v cc + 0.3 v v il low level input voltage - 0.3 - 0.3v cc v i ih high level input current (pins stb and en) v i =4v - 920 m a i il low level input current (pins stb and en) v i =1v 4 8 -m a i ih high level input current (pin txd) v i =4v - 25 - 80 - 200 m a i il low level input current (pin txd) v i =1v - 100 - 320 - 800 m a v cc forced battery voltage standby mode (fail safe) 2.75 - 4.5 v pins rxd and nerr v oh high level output voltage (pin nerr) i o = - 100 m av cc - 0.9 - v cc v v oh high level output voltage (pin rxd) i o = - 250 m av cc - 0.9 - v cc v v ol low level output voltage i o = 1.25 ma 0 - 0.9 v pin w ake i il low level input current v w ake =0v; v bat =27v - 10 - 120 - 250 m a v wu(th) wake-up threshold voltage v stb = 0 v 1.2 - 3.2 v
1997 oct 28 9 philips semiconductors product speci?cation fault-tolerant can transceiver pca82c252 pin inh v droph high level voltage drop i inh = - 0.18 ma; v bat <16v -- 0.8 v i inh = - 0.18 ma; v bat >16v -- 1.0 v i li leakage current sleep mode; v inh =0v -- 5.0 m a pins canh and canl v drx(rd) differential receiver recessive-to-dominant threshold voltage - 3.25 -- 2.65 v v drx(dr) differential receiver dominant-to-recessive threshold voltage no bus failures 0.4 0.7 1.0 v bus failures 1, 2 and 5 - 3.25 -- 2.65 v v ocanhrec canh recessive output voltage txd = v cc ; r rth <4k w- - 0.2 v v ocanlrec canl recessive output voltage txd = v cc ; r rtl <4k w v cc - 0.2 -- v v ocanhdom canh dominant output voltage txd = 0 v; v 6 =v cc ; i canh = - 40 ma v cc - 1.4 -- v v ocanldom canl dominant output voltage txd = 0 v; v 6 =v cc ; i canl =40ma -- 1.4 v i ocanh canh output current v canh = 0 v; txd = 0 v -- 75 - 100 ma sleep mode; v canh =12v - 0 -m a i ocanl canl output current v canl = 14 v; txd = 0 v - 90 130 ma sleep mode; v canl =0v, v bat =12v - 0 -m a v detth voltage detection threshold for short-circuit to battery voltage on canh and canl normal mode 6.5 7.3 8.0 v v detth voltage detection threshold for short-circuit to battery voltage on canh standby/sleep mode v bat - 2.5 - v bat - 1v v wul canl wake-up voltage threshold 2.4 3.1 3.8 v v wuh canh wake-up voltage threshold 1.2 1.9 2.7 v d v wu wake-up voltage threshold difference 0.2 -- v v canh canh single-ended receiver threshold failures 4, 6 and 7 1.5 1.82 2.15 v v canl canl single-ended receiver threshold voltage failure 3 2.8 3.1 3.4 v symbol parameter conditions min. typ. max. unit
1997 oct 28 10 philips semiconductors product speci?cation fault-tolerant can transceiver pca82c252 ac characteristics v cc = 4.75 to 5.25 v; v stb =v cc ; v bat =6vto27v; t amb = - 40 to +125 c; unless otherwise specified. all voltages are de?ned with respect to ground. positive currents ?ow into the ic. all parameters are guaranteed over the temperature range by design, but only 100% tested at 25 c. pins rth and rtl r rtl rtl to v cc switch-on resistance ? i o ? < 10 ma; normal operating mode - 725 w ? i o ? < 1 ma; v cc standby mode - 15 75 w rtl to bat switch series resistance v bat standby or sleep mode 10 16 28 k w r rth rth to ground switch-on resistance ? i o ? < 10 ma; normal operating mode - 43 95 w v orth rth output voltage i o = 1 ma; low power modes - 0.7 1.0 v i rtlpu rtl pull-up current normal operating mode, failures 4, 6 and 7 - 75 -m a i rthpd rth pull-down current normal operating mode, failure 3 - 75 -m a thermal shutdown t jsd shut down junction temperature 155 165 180 c symbol parameter conditions min. typ. max. unit t rd canl and canh bus output transition time recessive-to-dominant 10% to 90%; c1 = 10 nf; c2 = 0; r1 = 100 w 0.6 0.85 -m s t dr canl and canh bus output transition time dominant-to-recessive 10% to 90%; c1 = 1 nf; c2 = 0; r1 = 100 w 0.3 0.4 -m s t pd(l) propagation delay txd-to-rxd low c1 = 100 pf; c2 = 0; r1 = 100 w ; no failures and bus failures 1, 2 and 5 - 0.75 1.25 m s c1 = c2 = 3.3 nf; r1 = 100 w ; no failures and bus failures 1, 2 and 5 - 1 1.5 m s c1 = 100 pf; c2 = 0; r1 = 100 w ; bus failures 3, 4, 6 and 7 - 0.85 1.3 m s c1 = c2 = 3.3 nf; r1 = 100 w ; bus failures 3, 4, 6 and 7 - 1.1 1.7 m s symbol parameter conditions min. typ. max. unit
1997 oct 28 11 philips semiconductors product speci?cation fault-tolerant can transceiver pca82c252 t pd(h) propagation delay txd-to-rxd high c1 = 100 pf; c2 = 0; r l = 100 w ; no failures and bus failures 1, 2 and 5 - 0.75 1.25 m s c1 = c2 = 3.3 nf; r l = 100 w ; no failures and bus failures 1 and 2 - 1 1.5 m s c1 = 100 pf; c2 = 0; r1 = 100 w ; bus failures 3, 4, 6 and 7 - 0.85 1.3 m s c1 = c2 = 3.3 nf; r1 = 100 w ; bus failures 3, 4, 5, 6 and 7 - 1.4 2.1 m s t wo(min) minimum dominant time for wake-up on canl or canh low power modes v bat =12v 8 - 38 m s t w ake(min) minimum w ake low time for wake-up low power modes v bat =12v 8 - 38 m s t fail failures 3 and 6 detection time normal mode 10 - 60 m s failure 3 recovery time normal mode 10 - 60 m s failure 6 recovery time normal mode 150 - 750 m s failures 4 and 7 detection time normal mode 0.75 - 4.0 ms failures 4 and 7 recovery time normal mode 10 - 60 m s failures 3, 4 and 7 detection time low power modes; v bat = 12 v 0.8 - 8.0 ms failures 3, 4 and 7 recovery time low power modes; v bat =12v - 4 - ms t h(min) minimum hold time to go to sleep command 5 - 50 m s d ec edge-count difference between canh and canl for failures 1, 2 and 5 detection (nerr becomes low) normal mode - 3 - edge-count difference between canh and canl for failures 1, 2 and 5 recovery normal mode - 1 - symbol parameter conditions min. typ. max. unit
1997 oct 28 12 philips semiconductors product speci?cation fault-tolerant can transceiver pca82c252 test and application information fig.3 test circuit for dynamic characteristics. for testing, the 100 w termination resistors are not connected to rth or rtl because a minimum 500 w per transceiver is allowed. the capacitive bus load of 10 nf is split up into 3 capacitors to simulate the cable. d book, full pagewidth mbh550 20 pf rxd en stb txd wake 7 2 5 6 3 inh bat v cc 114 + 12 v 10 gnd nerr 13 4 rtl rth 8 9 canl 12 canh 11 + 5 v r1 c1 c2 r1 c1 pca82c252 fig.4 timing diagram for dynamic characteristics. a ndbook, full pagewidth mbh549 - 5 v - 2.9 v 0.7 v 2.2 v 0.7v cc 0.3v cc 0 v 5 v 1.4 v 3.6 v 0 v v cc v txd v canl v canh v diff v rxd t pd(l) t pd(h) v diff =v canh - v canl
1997 oct 28 13 philips semiconductors product speci?cation fault-tolerant can transceiver pca82c252 fig.5 application of the pca82c252. handbook, full pagewidth mbh552 100 nf txd rxd stb nerr en inh 2 7 35461 pca82c252 can transceiver bat v cc gnd 14 10 13 wake p8xc292/p8xce598 can controller ctx0 crxo 811129 rtl canl canh rth can bus line + 5 v + 5 v battery v bat fig.6 test circuit for automotive transients. the waveforms of the applied transients will be in accordance with iso 7637 part 1, test pulses 1, 2, 3a and 3b. handbook, full pagewidth mbh551 20 pf rxd en stb txd wake 7 2 5 6 3 inh bat v cc 11410 gnd nerr 13 4 rtl rth 8 9 canl 12 canh 11 + 5 v + 12 v 1 nf generator 1 nf 100 w 100 w pca82c252
1997 oct 28 14 philips semiconductors product speci?cation fault-tolerant can transceiver pca82c252 package outline unit a max. a 1 a 2 a 3 b p cd (1) e (1) (1) eh e ll p qz y w v q references outline version european projection issue date iec jedec eiaj mm inches 1.75 0.25 0.10 1.45 1.25 0.25 0.49 0.36 0.25 0.19 8.75 8.55 4.0 3.8 1.27 6.2 5.8 0.7 0.6 0.7 0.3 8 0 o o 0.25 0.1 dimensions (inch dimensions are derived from the original mm dimensions) note 1. plastic or metal protrusions of 0.15 mm maximum per side are not included. 1.0 0.4 sot108-1 x w m q a a 1 a 2 b p d h e l p q detail x e z e c l v m a (a ) 3 a 7 8 1 14 y 076e06s ms-012ab pin 1 index 0.069 0.010 0.004 0.057 0.049 0.01 0.019 0.014 0.0100 0.0075 0.35 0.34 0.16 0.15 0.050 1.05 0.041 0.244 0.228 0.028 0.024 0.028 0.012 0.01 0.25 0.01 0.004 0.039 0.016 95-01-23 97-05-22 0 2.5 5 mm scale so14: plastic small outline package; 14 leads; body width 3.9 mm sot108-1
1997 oct 28 15 philips semiconductors product speci?cation fault-tolerant can transceiver pca82c252 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 oct 28 16 philips semiconductors product speci?cation fault-tolerant can transceiver pca82c252 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 oct 28 17 philips semiconductors product speci?cation fault-tolerant can transceiver pca82c252 notes
1997 oct 28 18 philips semiconductors product speci?cation fault-tolerant can transceiver pca82c252 notes
1997 oct 28 19 philips semiconductors product speci?cation fault-tolerant can transceiver pca82c252 notes
internet: http://www.semiconductors.philips.com philips semiconductors C a worldwide company ? philips electronics n.v. 1997 sca55 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. +43 160 1010, fax. +43 160 101 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, band box building, 2nd floor, 254-d, dr. annie besant road, worli, mumbai 400 025, tel. +91 22 493 8541, fax. +91 22 493 0966 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 897027/00/04/pp20 date of release: 1997 oct 28 document order number: 9397 750 02969

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