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| 1 motorola sensor device data for linepowered applications the cmos MC145011 is an advanced smoke detector component containing sophisticated verylowpower analog and digital circuitry. the ic is used with an infrared photoelectric chamber. detection is accomplished by sensing scattered light from minute smoke particles or other aerosols. when detection occurs, a pulsating alarm is sounded via onchip pushpull drivers and an external piezoelectric transducer. the variablegain photo amplifier allows direct interface to ir detectors (photodiodes). two external capacitors c1 and c2, c1 being the larger, determine the gain settings. low gain is selected by the ic during most of the standby state. medium gain is selected during a localsmoke condition. high gain is used during pushbutton test. during standby, the special monitor circuit which periodically checks for degraded chamber sensitivity uses high gain, also. the i/o pin, in combination with v ss , can be used to interconnect up to 40 units for common signaling. an onchip current sink provides noise immunity when the i/o is an input. a localsmoke condition activates the shortcircuitprotected i/o driver, thereby signaling remote smoke to the interconnected units. additionally, the i/o pin can be used to activate escape lights, enable auxiliary or remote alarms, and/or initiate autodialers. while in standby, the lowsupply detection circuitry conducts periodic checks using a load current from the led pin. the trip point is set using two external resistors. the supply for the MC145011 must be a dc power source capable of supplying 35 ma continuously and 45 ma peak. when the MC145011 is in standby, an external led is continuously illuminated to indicate that the device is receiving power. an extinguished led accompanied by a pulsating audible alarm indicates a localsmoke condition. a pulsating audible alarm with the led illuminated indicates a remotesmoke condition. a beep or chirp indicates a lowsupply condition or degraded chamber sensitivity. a lowsupply condition does not affect the smoke detection capability if v dd 6 v. therefore, the lowsupply condition and degraded chamber sensitivity can be distinguished by performing a pushbutton (chamber) test. this circuit is designed to operate in smoke detector systems that comply with ul217 and ul268 specifications. ? operating voltage range: 6 to 12 v ? operating temperature range: 10 to 60 c ? average standby supply current (visible led illuminated): 20 ma ? poweron reset places ic in standby mode (nonalarm state) ? electrostatic discharge (esd) and latch up protection circuitry on all pins ? chip complexity: 2000 fets, 12 npns, 16 resistors, and 10 capacitors order this document by MC145011/d semiconductor technical data ? motorola, inc. 2001 p suffix plastic dip case 64808 pin assignment 16 15 14 13 12 11 10 9 1 2 3 4 5 6 7 8 c1 c2 detect strobe v dd ired i/o brass test lowsupply trip v ss r1 osc led feedback silver ordering information MC145011p plastic dip MC145011dw soic package 1 16 dw suffix plastic soic case 751g03 1 16 rev 3 f r e e s c a l e s e m i c o n d u c t o r , i freescale semiconductor, inc. f o r m o r e i n f o r m a t i o n o n t h i s p r o d u c t , g o t o : w w w . f r e e s c a l e . c o m n c . . . 2 motorola sensor device data * * %) ( * )* )*(% "%- )+&&"/ *( & %) #& %#& %#& "(# "% %($ #%+"*%( $ ( , ( , , ( * # $ "% , , ( 0 (% $ "%-)+&&"/ )#%! * %$ % * %$ % & $ , & $ , )) " ( ! ) ", ( ()) % block diagram maximum ratings* (voltages referenced to v ss ) symbol parameter value unit v dd dc supply voltage 0.5 to +12 v v in dc input voltage c1, c2, detect osc, lowsupply trip i/o feedback test 0.25 to v dd +0.25 0.25 to v dd +0.25 0.25 to v dd +10 15 to +25 1.0 to v dd +0.25 v i in dc input current, per pin 10 ma i out dc output current, per pin 25 ma i dd dc supply current, v dd and v ss pins +25 / 150 ma p d power dissipation in still air, 5 seconds continuous 1200** 350*** mw t stg storage temperature 55 to +125 c t l lead temperature, 1 mm from case for 10 seconds 260 c * maximum ratings are those values beyond which damage to the device may occur. functional operation should be restricted to the limits in the electrical characteristics tables. ** derating: 12 mw/ c from 25 to 60 c. *** derating: 3.5 mw/ c from 25 to 60 c. this device contains protection circuitry to guard against damage due to high static voltages or electric fields. however, prec autions must be taken to avoid applications of any voltage higher than maximum rated voltages to this highimpedance circuit. for proper ope ration, v in and v out should be constrained to the range v ss (v in or v out ) v dd except for the i/o, which can exceed v dd , and the test input, which can go below v ss . unused inputs must always be tied to an appropriate logic voltage level (e.g., either v ss or v dd ). unused outputs and/or an unused i/o must be left open. f r e e s c a l e s e m i c o n d u c t o r , i freescale semiconductor, inc. f o r m o r e i n f o r m a t i o n o n t h i s p r o d u c t , g o t o : w w w . f r e e s c a l e . c o m n c . . . 3 motorola sensor device data electrical characteristics (t a = 10 to 60 c unless otherwise indicated, voltages referenced to v ss ) symbol parameter test condition v dd v min max unit v dd power supply voltage range e 6.0 12 v v th supply threshold voltage, lowsupply alarm lowsupply trip: v in = v dd /3 e 6.5 7.8 v i dd average operating supply current, excluding the visible led current (per package) standby configured per figure 5 12.0 e 12 m a i dd peak supply current , excluding the visible led current (per package) during strobe on, ired off configured per figure 5 12.0 e 2.0 ma during strobe on, ired on configured per figure 5 12.0 e 3.0 v il lowlevel input voltage i/o feedback test 9.0 9.0 9.0 e e e 1.5 2.7 7.0 v v ih highlevel input voltage i/o feedback test 9.0 9.0 9.0 3.2 6.3 8.5 e e e v i in input current osc, detect lowsupply trip feedback v in = v ss or v dd v in = v ss or v dd v in = v ss or v dd 12.0 12.0 12.0 e e e 100 100 100 na i il lowlevel input current test v in = v ss 12.0 e 1 m a i ih pulldown current test i/o v in = v dd no local smoke, v in = v dd no local smoke, v in = 17 v 9.0 9.0 12.0 0.5 25 e 10 100 140 m a v ol lowlevel output voltage led silver, brass i out = 10 ma i out = 16 ma 6.5 6.5 e e 0.6 1.0 v v oh highlevel output voltage silver, brass i out = 16 ma 6.5 5.5 e v v out output voltage strobe (for line regulation, see pin descriptions) inactive, i out = 1 m a active, i out = 100 m a to 500 m a (load regulation) e 9.0 v dd 0.1 v dd 4.4 e v dd 5.6 v ired inactive, i out = 1 m a active, i out = 6 ma (load regulation) e 9.0 e 2.25* 0.1 3.75* i oh highlevel output current i/o local smoke, v out = 4.5 v 6.5 4 e ma local smoke, v out = v ss (short circuit current) 12.0 e 16 i oz offstate output leakage current led v out = v ss or v dd 12.0 e 1 m a v ic common mode c1, c2, detect voltage range local smoke, pushbutton test, or chamber sensitivity test e v dd 4 v dd 2 v v ref smoke comparator internal reference voltage local smoke, pushbutton test, or chamber sensitivity test e v dd 3.08 v dd 3.92 v *t a = 25 c only. f r e e s c a l e s e m i c o n d u c t o r , i freescale semiconductor, inc. f o r m o r e i n f o r m a t i o n o n t h i s p r o d u c t , g o t o : w w w . f r e e s c a l e . c o m n c . . . 4 motorola sensor device data ac electrical characteristics (reference timing diagram figures 3 and 4) (t a = 25 c, v dd = 9.0 v, component values from figure 5: r1 = 100.0 k w , c3 = 1500.0 pf, r2 = 10.0 m w ) no. symbol parameter test condition min max unit 1 1/f osc oscillator period* freerunning sawtooth measured at pin 12 9.5 11.5 ms 2 t led led status no local smoke, and no remote smoke illuminated 3 remote smoke, but no local smoke illuminated 4 local smoke or pushbutton test extinguished 5 t w(stb) strobe pulse width 9.5 11.5 ms 6 t ired ired pulse period smoke test 9.67 11.83 s 7 chamber sensitivity test, without local smoke 38.9 47.1 8 pushbutton test 0.302 0.370 9 t w(ired) ired pulse width 94 116 m s 10 t r ired rise time e 30 m s t f ired fall time e 200 11 t mod silver and brass modulation period local or remote smoke 297 363 ms 11, 12 t on /t mod silver and brass duty cycle local or remote smoke 73 77 % 13 t ch silver and brass chirp pulse period low supply or degraded chamber sensitivity 38.9 47.1 s 14 t w(ch) silver and brass chirp pulse width low supply or degraded chamber sensitivity 9.5 11.5 ms 15 t rr rising edge on i/o to smoke alarm response time remote smoke, no local smoke e 800 ms 16 t stb strobe pulse period smoke test 9.67 11.83 s 17 chamber sensitivity test, without local smoke 38.9 47.1 18 low supply test, without local smoke 38.9 47.1 19 pushbutton test 0.302 0.370 * oscillator period t (= t r + t f ) is determined by the external components r1, r2, and c3 where t r = (0.6931) r2 c3 and t f = (0.6931) r1 c3. the other timing characteristics are some multiple of the oscillator timing as shown in the table. f r e e s c a l e s e m i c o n d u c t o r , i freescale semiconductor, inc. f o r m o r e i n f o r m a t i o n o n t h i s p r o d u c t , g o t o : w w w . f r e e s c a l e . c o m n c . . . 5 motorola sensor device data figure 1. ac characteristics versus supply &+") - * % ( & ( % %( &+") - * % %* ( &(# * () &(# * ($%(#" 0 *% ,,"+ , &%- ( )+&&"/ ,%"* , * figure 2a. ac characteristics versus temperature note: includes external component variations. see figure 2b. &+") - * % ( & ( % %( &+") - * % %* ( &(# * () &(# * ($%(#" 0 *%4,"+ * # $* * #& (*+( , , figure 2. figure 2b. rc component variation over temperature note: these components were used to generate figure 2a. # w (%$ %#&%) * %$ 1 w # *" "# 2 && # %#&%$ $*,"+ $%(#" 0 *% 4,"+ * # $* * #& (*+( f r e e s c a l e s e m i c o n d u c t o r , i freescale semiconductor, inc. f o r m o r e i n f o r m a t i o n o n t h i s p r o d u c t , g o t o : w w w . f r e e s c a l e . c o m n c . . . 6 motorola sensor device data "%-)+&&"/* )* $* ($" )#%! * )* $* ($" # (* )* $* ($" %) & $ " & $ ) ", (()) $* ($" $" &%- ( %$( ) * $%"%-)+&&"/5 # () $) * , */%! (&) $ * "%-)+&&"/ (&) $ * ( # () $) * , */ ( & $ )*(% & $ notes: numbers refer to the ac electrical characteristics table. illustration is not to scale. %$* $+%+)"/ ""+# $* figure 3. standby timing diagram f r e e s c a l e s e m i c o n d u c t o r , i freescale semiconductor, inc. f o r m o r e i n f o r m a t i o n o n t h i s p r o d u c t , g o t o : w w w . f r e e s c a l e . c o m n c . . . 7 motorola sensor device data figure 4. smoke timing diagram "%-)+&&"/* )* $* ($" ( & $ # (* )* $* ($" )*(% & $ % & $ ) ", (()) $%*& ( %(# $%*& ( %(# ( " & $ ) $&+* )%+*&+* )%+*&+* $" $* ($" $% )#%! &+) +**%$ $%)#%! "%")#%! ( #%* )#%! %$*( ( #%* )#%! $%"%")#%! notes: numbers refer to the ac electrical characteristics table. illustration is not to scale. .* $ + ) %$* $+%+)"/ ""+# $* * )* f r e e s c a l e s e m i c o n d u c t o r , i freescale semiconductor, inc. f o r m o r e i n f o r m a t i o n o n t h i s p r o d u c t , g o t o : w w w . f r e e s c a l e . c o m n c . . . 8 motorola sensor device data * )* "%- )+&&"/ *( & , )) ( %) " ! ) ", ( , ( % ()) )*(% * * %($ . *% %* ( # 3 )& " *) +. " (/ "(#) ( #%* "(#) $ %( +*% " ( ( +(( $* ( *% ' # ( , ) " " ( 1 ( 1 )- &+) +**%$ * )* ( # m 2 ( 1 ( ( 1 *% m m 2 ( w ( 4 1 ( * *%( ( 1 ( 2 1 ( 1 ( # ** ( ( 1 m values for r4, r5, and c6 may differ depending on type of piezoelectric horn used. * c2 and r13 are used for coarse sensitivity adjustment. typical values are shown. 2 r9 is for fine sensitivity adjustment (optional). if fixed resistors are used, r8 = 12 k, r10 is 5.6 k to 10 k, and r9 is elim inated. when r9 is used, noise pickup is increased due to antenna effects. shielding may be required. ** c4 should be 22 m f if supply line resistance is high (up to 50 w ). c4 could be reduced to 1 m f when supply line resistance is < 30 w . , figure 5. typical application pin descriptions c1 (pin 1) a capacitor connected to this pin as shown in figure 5 determines the gain of the onchip photo amplifier during pushbutton test and chamber sensitivity test (high gain). the capacitor value is chosen such that the alarm is tripped from background reflections in the chamber during pushbutton test. a v 1 + (c1/10) where c1 is in pf. caution: the value of the closedloop gain should not exceed 10,000. c2 (pin 2) a capacitor connected to this pin as shown in figure 5 determines the gain of the onchip photo amplifier except during pushbutton or chamber sensitivity tests. a v 1 + (c2/10) where c2 is in pf. this gain increases about 10% during the ired pulse, after two consecutive local smoke detections. resistor r14 must be installed in series with c2. r14 [1/(12 c2 )] 680 where r14 is in ohms and c2 is in farads. detect (pin 3) this input to the highgain pulse amplifier is tied to the cathode of an external photodiode. the photodiode should have low capacitance and low dark leakage current. the diode must be shunted by a load resistor and is operated at zero bias. the detect input must be ac/dc decoupled from all other signals, v dd , and v ss . lead length and/or foil traces to this pin must be minimized, also. see figure 6. strobe (pin 4) this output provides a strobed, regulated voltage refer- enced to v dd . the temperature coefficient of this voltage is 0.2%/ c maximum from 10 to 60 c. the supplyvoltage coefficient (line regulation) is 0.2%/v maximum from 6 to 12 v. strobe is tied to external resistor string r8, r9, and r10. f r e e s c a l e s e m i c o n d u c t o r , i freescale semiconductor, inc. f o r m o r e i n f o r m a t i o n o n t h i s p r o d u c t , g o t o : w w w . f r e e s c a l e . c o m n c . . . 9 motorola sensor device data v dd (pin 5) this pin is connected to the positive supply potential and may range from + 6 to + 12 v with respect to v ss . ired (pin 6) this output provides pulsed base current for external npn transistor q1 used as the infrared emitter driver. q1 must have b 100. at 10 ma, the temperature coefficient of the output voltage is typically + 0.5%/ c from 10 to 60 c. the supplyvoltage coefficient (line regulation) is 0.2%/v maxi- mum from 6 to 12 v. the ired pulse width (activehigh) is determined by external components r1 and c3. with a 100 k w /1500 pf combination, the nominal width is 105 m s. to minimize noise impact, ired is not active when the vis- ible led and horn outputs are active. ired is active near the end of strobe pulses for smoke tests, chamber sensitivity test, and pushbutton test. i/o (pin 7) this pin can be used to connect up to 40 units together in a wiredor configuration for common signaling. v ss is used as the return. an onchip current sink minimizes noise pick up during nonsmoke conditions and eliminates the need for an external pulldown resistor to complete the wiredor. remote units at lower supply voltages do not draw excessive current from a sending unit at a higher supply voltage. i/o can also be used to activate escape lights, auxiliary alarms, remote alarms, and/or autodialers. as an input, this pin feeds a positiveedgetriggered flip flop whose output is sampled nominally every 625 ms during standby (using the recommended component values). a localsmoke condition or the pushbuttontest mode forces this currentlimited output to source current. all input signals are ignored when i/o is sourcing current. i/o is disabled by the onchip poweron reset to elimi- nate nuisance signaling during battery changes or system powerup. if unused, i/o must be left unconnected. brass (pin 8) this half of the pushpull driver output is connected to the metal support electrode of a piezoelectric audio trans- ducer and to the hornstarting resistor. a continuous mod- ulated tone from the transducer is a smoke alarm indicating either local or remote smoke. a short beep or chirp is a trouble alarm indicating a low supply or degraded chamber sensitivity. silver (pin 9) this half of the pushpull driver output is connected to the ceramic electrode of a piezoelectric transducer and to the hornstarting capacitor. feedback (pin 10) this input is connected to both the feedback electrode of a selfresonating piezoelectric transducer and the hornstart- ing resistor and capacitor through currentlimiting resistor r4. if unused, this pin must be tied to v ss or v dd . led (pin 11) this activelow opendrain output directly drives an exter- nal visible led. the load for the lowsupply test is applied by this output. this lowsupply test is noncoincident with the smoke tests, chamber sensitivity test, pushbutton test, or any alarm signals. the led also provides a visual indication of the detector status as follows, assuming the component values shown in figure 5: standby (includes lowsupply and chamber sensitivity tests) e constantly illuminated local smoke e constantly extinguished remote smoke e constantly illuminated pushbutton test e constantly extinguished (system ok); constantly illuminated (system problem) osc (pin 12) this pin is used in conjunction with external resistor r2 (10 m w ) to v dd and external capacitor c3 (1500 pf) to v dd to form an oscillator with a nominal period of 10.5 ms. r1 (pin 13) this pin is used in conjunction with resistor r1 (100 k w ) to pin 12 and c3 (1500 pf, see pin 12 description) to determine the ired pulse width. with this rc combination, the nominal pulse width is 105 m s. v ss (pin 14) this pin is the negative supply potential and the return for the i/o pin. pin 14 is usually tied to ground. lowsupply trip (pin 15) this pin is connected to an external voltage which deter- mines the lowsupply alarm threshold. the trip voltage is obtained through a resistor divider connected between the v dd and led pins. the lowsupply alarm threshold voltage (in volts) (5r7/r6) + 5 where r6 and r7 are in the same units. test (pin 16) this input has an onchip pulldown device and is used to manually invoke a test mode. the pushbutton test mode is initiated by a high level at pin 16 (usually depression of a s.p.s.t. normallyopen pushbut- ton switch to v dd ). after one oscillator cycle, ired pulses approximately every 336 ms, regardless of the presence of smoke. additionally, the amplifier gain is increased by auto- matic selection of c1. therefore, the background reflections in the smoke chamber may be interpreted as smoke, gener- ating a simulatedsmoke condition. after the second ired pulse, a successful test activates the horndriver and i/o cir- cuits. the active i/o allows remote signaling for system test- ing. when the pushbutton test switch is released, the test input returns to v ss due to the onchip pulldown device. af- ter one oscillator cycle, the amplifier gain returns to normal, thereby removing the simulatedsmoke condition. after two additional ired pulses, less than a second, the ic exits the alarm mode and returns to standby timing. f r e e s c a l e s e m i c o n d u c t o r , i freescale semiconductor, inc. f o r m o r e i n f o r m a t i o n o n t h i s p r o d u c t , g o t o : w w w . f r e e s c a l e . c o m n c . . . 10 motorola sensor device data calibration to facilitate checking the sensitivity and calibrating smoke detectors, the MC145011 can be placed in a calibration mode. in this mode, certain device pins are controlled/recon- figured as shown in table 1. to place the part in the calibra- tion mode, pin 16 (test) must be pulled below the v ss pin with 100 m a continuously drawn out of the pin for at least one cycle on the osc pin. to exit this mode, the test pin is floated for at least one osc cycle. in the calibration mode, the ired pulse rate is increased to one for every osc cycle. also, strobe is always active low. table 1. configuration of pins in the calibration mode description pin comment i/o 7 disabled as an output. forcing this pin high places the photo amp output on pin 1 or 2, as determined by lowsupply trip. the amp's output appears as pulses and is referenced to v dd . lowsupply trip 15 if the i/o pin is high, pin 15 controls which gain capacitor is used. low: normal gain, amp output on pin 1. high: supervisory gain, amp output on pin 2. feedback 10 driving this input high enables hysteresis (10% gain increase) in the photo amp; pin 15 must be low. osc 12 driving this input high brings the internal clock high. driving the input low brings the internal clock low. if desired, the rc network for the oscillator may be left intact; this allows the oscillator to run similar to the normal mode of operation. silver 9 this pin becomes the smoke comparator output. when the osc pin is toggling, positive pulses indicate that smoke has been detected. a static low level indicates no smoke. brass 8 this pin becomes the smoke integrator output. that is, 2 consecutive smoke detections are required for aono (static high level) and 2 consecutive nodetections for aoffo (static low level). notes: illustration is bottom view of layout using a dip. top view for soic layout is mirror image. optional potentiometer r9 is not included. drawing is not to scale. leads on d1, r11, r8, and r10 and their associated traces must be kept as short as possible. this practice minimizes noise pick up. pin 3 must be decoupled from all other traces. figure 6. recommended pcb layout % $%* (+$ $/ * %$" *( ) $ * ) ( %$ & $ & $ & $ & $ ( ( ( #%+$* $ # ( ( f r e e s c a l e s e m i c o n d u c t o r , i freescale semiconductor, inc. f o r m o r e i n f o r m a t i o n o n t h i s p r o d u c t , g o t o : w w w . f r e e s c a l e . c o m n c . . . 11 motorola sensor device data package dimensions case 64808 issue r $%* ) # $) %$ $ $ *%" ($ $ & ( $) / # %$*(%"" $ # $) %$ $ # $) %$ " *% $* ( % " ) - $ %(# &("" " # $) %$ % ) $%* $"+ #%" ") (%+$ %($ () %&* %$" a b f c s h g d j l m 16 pl k t # # * ) ) ) ) )*/" & $ * % * % * % * % * % * % * % * % $% $% $% $% $% $% $% $% )*/" & $ %##%$ ( $ %##%$ ( $ %##%$ ( $ %##%$ ( $ %##%$ ( $ %##%$ ( $ %##%$ ( $ %##%$ ( $ * )%+( * )%+( * )%+( * )%+( case 751g03 issue b d 14x b 16x ) # ) * h x 45 # # h 8x e b a e t a1 a l c $%* ) # $) %$) ( $ # "" # * () $* (&( * # $) %$) $ *%" ($ ) & ( )# / # # $) %$) $ % $%* $"+ #%" &(%*(+) %$ #. #+# #%" &(%*(+) %$ & ( ) # $) %$ % ) $%* $"+ #( &(%*(+) %$ ""%-" #( &(%*(+) %$ ) "" *%*" $ . )) % * # $) %$ * #. #+# #* ( " %$ * %$ ) f r e e s c a l e s e m i c o n d u c t o r , i freescale semiconductor, inc. f o r m o r e i n f o r m a t i o n o n t h i s p r o d u c t , g o t o : w w w . f r e e s c a l e . c o m n c . . . 12 motorola sensor device data motorola reserves the right to make changes without further notice to any products herein. motorola makes no warranty, represe ntation or guarantee regarding the suitability of its products for any particular purpose, nor does motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. atypicalo parameters which may be provided in motorola data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. all operating parameters, including atypicalso must be validated for each customer application by customer's technical experts. motorola does not convey any license under its patent rights nor the rights of others. motor ola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other ap plications intended to support or sustain life, or for any other application in which the failure of the motorola product could create a s ituation where personal injury or death may occur. should buyer purchase or use motorola products for any such unintended or unauthorized app lication, buyer shall indemnify and hold motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or dea th associated with such unintended or unauthorized use, even if such claim alleges that motorola was negligent regarding the design or manufacture of the part. motorola and are registered trademarks of motorola, inc. motorola, inc. is an equal opportunity/affirmative action employer. motorola and the stylized m logo are registered in the us patent & trademark office. all other product or service names are the property of their respective owners. motorola, inc. 2001. how to reach us: usa/europe/locations not listed : motorola literature distribution; japan : motorola japan ltd.; sps, technical information center, 3201, p.o. box 5405, denver, colorado 80217. 13036752140 or 18004412447 minamiaz abu. minatoku, tokyo 1068573 japan. 8 1334403569 technical information center: 18005216274 asia/pacific : motorola semiconductors h.k. ltd.; silicon harbour centre, 2, dai king street, tai po industrial estate, tai po, n.t., hong kong. 85226668334 home page : http://www.motorola.com/semiconductors/ MC145011/d ? f r e e s c a l e s e m i c o n d u c t o r , i freescale semiconductor, inc. f o r m o r e i n f o r m a t i o n o n t h i s p r o d u c t , g o t o : w w w . f r e e s c a l e . c o m n c . . . |
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