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mb3793-34a power-voltage monitoring ic with watchdog timer cypress semiconductor corporation ? 198 champion court ? san jose , ca 95134-1709 ? 408-943-2600 document number: 002-08556 rev. *a revised march 31, 2016 the mb3793 is an integrated circuit to monitor power voltage; it incorporates a watchdog timer. a reset signal is output when the power is cut or falls abrupt ly. when the power recovers norma lly after resetting, a power-on reset signal is output to microprocessor units (mpus). an internal watchdog timer with tw o inputs for system oper ation diagnosis can provide a fail-safe function for various application systems. features precise detection of power voltage fall: ?? 2.5% detection voltage with hysteresis low power dispersion: i cc = 38 ? a (typ) internal dual-input watchdog timer watchdog timer halt function independently-set watchdog and reset times application arcade amusement etc. model no. marking co de detection voltage mb3793-34a 3793aj 3.4 v
mb3793-34a document number: 002-08556 rev. *a page 2 of 26 contents pin assignment ................................................................ 3 pin description ................................................................. 3 block diagram .................................................................. 4 block functions ................................................................ 5 absolute maximum ratings ............................................ 6 recommended operating conditions ............................ 6 electrical characteristics ................................................. 7 dc characteristics ...................................................... 7 ac characteristics ....................................................... 8 timing diagram ................................................................ 9 basic operation (positive clock pulse) ........................ 9 basic operation (negative clock pulse) .................... 10 single-clock input monitoring (positive clock pulse) ................................................. 11 inhibition operation (positive clock pulse) ................. 12 clock pulse input supplementation (positive clock pulse) ................................................. 13 operation sequence ....................................................... 14 positive clock pulse input .......................................... 14 negative clock pulse input ..... .............. .............. ........ 14 single-clock input monitoring .................................... 14 description of operations .......................................... 14 typical characteristics ................................................. 16 application example ...................................................... 19 supply voltage monitor and watchdog timer ............. 19 supply voltage monitor and watchdog timer stop ...... 20 usage precaution ........................................................... 21 ordering information ...................................................... 21 rohs compliance information of lead (pb) free version ................................................... 22 labeling sample (lead free vers ion) ........................... 22 marking format (lead free version) ........................... 22 MB3793-34APNF recommended conditions of moisture sensitivity level ........................................ 23 package dimensions 2...................................................... 4 document history ........................................................... 25
mb3793-34a document number: 002-08556 rev. *a page 3 of 26 1. pin assignment 2. pin description pin no. symbol description 1 reset outputs reset pin 2 ctw sets watchdog timer monitoring time pin 3 ctp sets power-on reset hold time pin 4 gnd ground pin 5 vcc power supply pin 6inh this pin forces the watchdog timer on/of f. when this pin is high level, the watchdog timer is stopped. 7 ck2 inputs clock 2 pin 8 ck1 inputs clock 1 pin reset ctw ctp gnd ck1 ck2 inh v cc (fpt-8p-m02) (top view) 1 2 3 4 8 7 6 5
mb3793-34a document number: 002-08556 rev. *a page 4 of 26 3. block diagram i 1 = 3 a . . i 2 = 30 a . . r 1 = 435 k . . 3 1 6 2 8 7 5 4 ctp to v cc of all blocks pulse generator 1 watchdog timer reference voltage generator to gnd of all blocks pulse generator 2 output circuit logic circuit reset inh ctw ck1 ck2 v cc gnd comp.s ? + v s v ref = 1.24 v . . r 2 = 240 k . .
mb3793-34a document number: 002-08556 rev. *a page 5 of 26 4. block functions 1. comp.s comp.s is a comparator with hysteresis to compare the reference voltage with a voltage (v s ) that is the result of dividing the power voltage (v cc ) by resistors r 1 and r 2 . when v s falls below 1.24 v, a reset signal is output. this function enables the mb3793 to detect an abnormality within 1 ? s when the power is cut or falls abruptly. 2. output circuit the output circuit has a comparator to control the reset signal (reset ) output. when the voltage at the ctp pin for setting the power-on reset hold time exceeds the threshold voltage, resetting is canceled. since the reset (reset ) output buffer has the cmos organization, no pull-up resistor is needed. 3. pulse generator the pulse generator generates pulses when the voltage at the ck1 and ck2 input clock pins changes from low level to high level (positive-edge trigger) and exceeds the threshold voltage; it sends the clock signal to the watchdog timer. 4. watchdog timer the watchdog timer can monitor two clock pulses. short-circuit the ck1 and ck2 clock pins to monitor a single clock pulse. 5. logic circuit logic circuit controls charging and discharging of the power-on reset hold time setting capacity (c tp ) on a signal of comp.s and watchdog timer.
mb3793-34a document number: 002-08556 rev. *a page 6 of 26 5. absolute maximum ratings * : the voltage is based on the ground voltage (0 v). warning: semiconductor devices can be permanently damaged by ap plication of stress (voltage, cu rrent, temperature, etc.) in excess of absolute ma ximum ratings. do not exceed these ratings. 6. recommended operating conditions * : the watchdog timer monitor time range depends on the rating of the setting capacitor. warning: the recommended operating conditions are required in order to ensure the no rmal operation of the semiconductor device. all of the device's electrical characteristics are warrant ed when the device is operated within these ranges. always use semiconductor devices within th eir recommended operating condition ranges. operation outside these ranges may adversely affect reliability and could result in device failure. no warranty is made with respect to uses, operating condition s, or combinations not repr esented on the data sheet. users considering application outside the listed conditions ar e advised to contact their representatives beforehand. parameter symbol conditions rating unit min max power supply voltage* v cc ?-0.3+7 v input voltage* ck1 v ck1 ? -0.3 v cc + 0.3 ( +7) v ck2 v ck2 ? inh v inh ? reset output voltage* reset v ol v oh ?-0.3 v cc + 0.3 ( +7) v reset output current i ol i oh ?-10+10ma power dissipation p d ta +85c ? 200 mw storage temperature tstg ? -55 +125 c parameter symbol conditions value unit min typ max power supply voltage v cc ?1.25.06.0v reset (reset ) output current i ol ?0? + 5 ma i oh ?-5?0 power-on reset hold time setting capacity c tp ?0.0010.110 f watchdog-timer monitoring time setting capacity* c tw ? 0.001 0.01 1 f operating ambient temperature ta ? -40 +25 +85 c
mb3793-34a document number: 002-08556 rev. *a page 7 of 26 7. electrical characteristics 7.1 dc characteristics * : this parameter is guaranteed by design , which is not supported by a final test. (v cc = +5 v, ta = +25c) parameter symbol conditions value unit min typ max power current icc1 after exit from reset ? 38 50 a detection voltage vsl vcc falling ta = +25c 3.32 3.40 3.48 v ta = -40 to +85c 3.27* 3.40 3.53* vsh vcc rising ta = +25c 3.40 3.48 3.56 v ta = -40 to +85c 3.35* 3.48 3.61* detection voltage hysteresis difference vshys vsh - vsl 35 80 120 mv ck input threshold voltage vcih ? 1.4* 1.9 2.5 v vcil ? 0.8 1.3 1.8* v ck input hysteresis vchys ? 0.4* 0.6 0.8* v inh input voltage viih ? 3.5 ? v cc v viil ? 0 ? 0.8 v input current (ck1,ck2,inh) iih vih = vcc ? 0 1.0 a iil vil = 0 v -1.0 0 ? a reset output voltage voh ireset = -5 ma 4.5 4.75 ? v vol ireset = +5 ma ? 0.12 0.4 v reset-output minimum power voltage vccl ireset = +50 a?0.81.2v
mb3793-34a document number: 002-08556 rev. *a page 8 of 26 7.2 ac characteristics *: the voltage range is 10% to 90% at testing the reset output transition time. (v cc = ? 5 v, ta = ? 25 ? c) parameter symbol conditions value unit min typ max power-on reset hold time tpr ctp = 0.1 f 80 130 180 ms watchdog timer moni toring time twd ctw = 0.01 f ctp = 0.1 f 7.5 15 22.5 ms watchdog timer reset time twr ctp = 0.1 f 5 10 15 ms ck input pulse width tckw ? 500 ? ? ns ck input pulse cycle tckt ? 20 ? ? s reset (reset ) output transition time rising tr* cl = 50 pf ? ? 500 ns falling tf* cl = 50 pf ? ? 500 ns
mb3793-34a document number: 002-08556 rev. *a page 9 of 26 8. timing diagram 8.1 basic operation (positive clock pulse) ctp reset inh ctw ck1 ck2 v sh v cc v sl v th v h v l (1) (2) (3) (4)(5) (5) (6) (7) (8) (9) (10) (11) (12) (13) t pr t wd t pr t wr t ckw t ckt
mb3793-34a document number: 002-08556 rev. *a page 10 of 26 8.2 basic operation (negative clock pulse) ctp reset inh ctw ck1 ck2 v sh v cc v sl v th v h v l t pr t wd t pr t wr t ckw t ckt (1) (2) (3) (4)(5) (5) (6) (7) (8) (9) (10) (11) (12) (13)
mb3793-34a document number: 002-08556 rev. *a page 11 of 26 8.3 single-clock input moni toring (positive clock pulse) ctp reset ctw ck1 v th v h v l ck2 t wr t wd t ckt t ckw note : the mb3793 can monitor only one clock. the mb3793 checks the clock signal at every other input pulse. therefore, set watchdog timer monitor time t wd to the time that allows the mb3793 to monitor the period twice as long as the input clock pulse.
mb3793-34a document number: 002-08556 rev. *a page 12 of 26 8.4 inhibition operation (positive clock pulse) ctp reset inh ctw ck1 ck2 v sh v cc v sl v th v h v l t pr t wd t pr t wr t ckw (1) (2) (3) (4)(5) (5) (6) (7) (11) (8) (9) (10) (12) (13) t ckt
mb3793-34a document number: 002-08556 rev. *a page 13 of 26 8.5 clock pulse input suppleme ntation (positive clock pulse) ctw ck1 ck2 v h v l t ckt t ckw * 1 * 2 note : the mb3793 watchdog timer monitors clock1 (ck1) and clock2 (ck2) pulses alternately. when a ck2 pulse is detected after detecting a ck1 pulse, the monitoring time setting capacity (c tw ) switches to charging from discharging. when two consecutive pulses occur on one side of this alternation before switching, the second pulse is ignored. in the above figure, pulse *1 and *2 are ignored.
mb3793-34a document number: 002-08556 rev. *a page 14 of 26 9. operation sequence 9.1 positive clock pulse input refer to ?8.1. basic operation (positive clock pulse)? under ?8. timing diagram?. 9.2 negative clock pulse input refer to ?8.2. basic operation (negative clock pulse)? under ?8.timing diagram?. the mb3793 operates in the same way whether it inputs positive or negative pulses. 9.3 single-clock input monitoring to use the mb3793 while monitoring only one clock, connect clock pins ck1 and ck2. although the mb3793 operates basically in the same way as when mo nitoring two clocks, it monitors the clock signal at every oth er input pulse. refer to ?8.3. single-clock input monitoring (positive clock pulse)? under ?8.timing diagram?. 9.4 description of operations the numbers given to the following items correspond to numbers 1 to 13 used in ?8.timing diagram?. 1. the mb3793 outputs a reset signal when the supply voltage (v cc ) reaches about 0.8 v (v ccl ). 2. if v cc reaches or exceeds the ri se-time detected voltage v sh , the mb3793 starts charging the power-on reset hold time setting capacitor c tp . at this time, the output remains in a reset state. the v sh value is 3.48 v (typ). 3. when c tp has been charged for a certain period of time t pr (until the ctp pin voltage exceeds the threshold voltage (v th ) after the start of charging), the mb3793 c ancels the reset (setting the reset pin to ?h? level from ?l? level). the v th value is about 3.6 v with v cc = 5.0 v the power-on reset hold time t pr is set with the following equation: t pr (ms) a ? c tp ( ? f) the value of a is about 1300 with v cc = 5.0 v. the mb3793 also starts charging the watchdog timer monitor time setting capacitor (c tw ). 4. when the voltage at the watchdog timer monitor time setting pin c tw reaches the ?h? level threshold voltage v h , the ctw switches from the charge state to the discharge state. the value of v h is always about 1.24 v regardless of the detected voltage. 5. if the ck2 pin inputs a clock pulse (positive edge trigger) when the c tw is being discharged in the ck 1-ck2 order or simultaneously, the c tw switches from the discharge state to the charge state. the mb3793 repeats operations 4 and 5 as long as the ck1/ck2 pi n inputs clock pulses with the system logic circuit operating normally. 6. if no clock pulse is fed to the ck1 or ck2 pin within the watchdog timer monitor time t wd due to some problem with the system logic circuit, the ctw pin is set to the ?l? level threshold voltage v l or less and the mb3793 outputs a reset signal (setting the reset pin to ?l? level from ?h? level). the value of v l is always about 0.24 v regardless of the detected voltage. the watchdog timer monitor time t wd is set with the following equation: t wd (ms) b ? c tw ( ? f) ? c c tp ( f) the value of b is hardly affected by the pow er supply voltage; it is about 1500 with v cc = 5.0 v. the value of c is 0. for this reason: t wd (ms) b c tw ( f) . . = . . = . . =
mb3793-34a document number: 002-08556 rev. *a page 15 of 26 7. when a certain period of time t wr has passed (until the ctp pin voltage reaches or exceeds vth again after recharging the c tp ), the mb3793 cancels the reset signal and starts operating the watchdog timer. the watchdog timer monitor reset time t wr is set with the following equation: t wr (ms) d c tp ( ? f) the value of d is 100 with v cc = 5.0 v. the mb3793 repeats operations (4) and (5) as long as the ck1/ck2 pin inputs clock pulses. if no clock pulse is input, the mb379 3 repeats operations (6) and (7). 8. if v cc is lowered to the fall-time detected voltage (v sl ) or less, the ctp pin voltage decreases and the mb3793 outputs a reset signal (setting the reset pin to ?l? level from ?h? level). the value of v sl is 3.40 v (typ). 9. when v cc reaches or exceeds v sh again, the mb3793 starts charging the c tp . 10.when the ctp pin voltage reaches or exceeds v th , the mb3793 cancels the reset and restarts operating the watchdog timer. it repeats operations 4 and 5 as long as the ck1/ck2 pin inputs clock pulses. 11.making the inhibit pin active (setting the inh pin to ?h ? from ?l?) forces the watchdog timer to stop operation. this stops only the watchdog timer, leaving the mb3793 monitoring v cc (operations 8 to 10). the watchdog timer remains inactive unless the inhibit input is canceled. the inhibition (inh) pin must be connecting a voltage of more low impedance, to evade of the noise. 12.cancelling the inhibit input (setting the inh pin to ?l? from ?h?) restarts the watchdog timer. 13.the reset signal is output when the power supply is turned off to set v cc to v sl or less. . . = 1. equation of time-setting capacitances (c tp and c tw ) and set time t pr [ms] a c tp [ f] t wd [ms] b c tw [ f] + c c tp [ f] however, when c tp /c tw 10 or less, t wd [ms] b c tw [ f] t wr [ms] d c tp [ f] values of a, b, c, and d note: the width of value of t pr , t wd and t wr becomes the same ratio as width (min, max) of each specification value. 2. example (when c tp = 0.1 f and c tw = 0.01 f) abcd remark 1300 1500 0 100 v cc = 5.0 v time (ms) symbol v cc = 5.0 v t pr 130 t wd 15 t wr 10 = . . = . . = . . = . . = . .
mb3793-34a document number: 002-08556 rev. *a page 16 of 26 10. typical characteristics (continued) 45 40 35 30 25 20 0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 mb3793 v inh v cc (v inh = 0 v) ta = +25 c ta = +85 c ta = -40 c 0 012345678910 0.1 0.2 0.3 0.4 0.5 0.6 3.2 -20 -40 0 +20 +40 +60 +80 +100 +120 3.3 3.4 3.5 3.6 3.7 v sh v sl 0 -1-2-3-4-5 -6-7 -8-9-10 ta = +25 c ta = +85 c ta = -40 c 4.0 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9 5.0 i cc - v cc characteristics power current i cc ( a) power voltage v cc (v) watchdog timer monitoring detection voltage v sh and v sl (v) operating ambient temperature ta ( ? c) reset output current i reset (ma) reset output voltage v reset (v) v reset - i reset characteristics (p-mos side) v reset - i reset characteristics (n-mos side) reset output voltage v reset (v) reset output current i reset (ma) v sh , v sl - ta characteristics f ck = 1 khz, duty ? 10% v l ? 0 v/v h ? v cc c tw ? 0.01 f, c tp ? 0.1 f
mb3793-34a document number: 002-08556 rev. *a page 17 of 26 (continued) 7 6 5 4 3 2 1 0 01234567 ta = +85 c ta = +25 c ta = -40 c -40 -20 0 +20 +40 +60 +80 +100 +120 0 20 40 60 80 100 120 140 160 180 200 220 240 260 at v cc = 5.0 v ? 40 ? 20 0 +20 +40 +60 +80 +100 +120 0 2 4 6 8 10 12 14 16 18 20 22 24 26 at v cc = 5.0 v ? 40 ? 20 0 +20 +40 +60 +80 +100 +120 0 2 4 6 8 10 12 14 16 18 20 22 24 26 at v cc = 5.0 v v reset - v cc characteristics power voltage v cc (v) reset output voltage v reset (v) pull-up resistance: 100 k ? t pr - ta characteristics operating ambient temperature ta ( ? c) power-on reset hold time t pr (ms) t wr - ta characteristics t wd - ta characteristics operating ambient temperature ta ( ? c) operating ambient temperature ta ( ? c) watchdog timer reset time t wr (ms) watchdog timer monitoring time t wd (ms)
mb3793-34a document number: 002-08556 rev. *a page 18 of 26 (continued) 10 4 10 3 10 2 10 1 1 10 ? 1 10 ? 4 10 ? 3 10 ? 2 10 ? 1 110 1 10 2 ta = ? 40 c ta = + 25 c ta = + 85 c 10 3 10 2 10 1 1 10 ? 1 10 ? 4 10 ? 3 10 ? 2 10 ? 1 110 1 10 2 10 ? 2 ta = ? 40 c ta = + 25 c ta = + 85 c 10 3 10 2 10 1 1 10 ? 1 10 ? 4 10 ? 3 10 ? 2 10 ? 1 110 1 10 ? 5 ta = ? 40 c ta = + 25 c ta = + 85 c c tp = 0.01 f t pr - c tp characteristics t wr - c tp characteristics power-on reset hold time t pr (ms) power-on reset time setting capacitance c tp ( ? f) power-on reset time setting capacitance c tp ( ? f) t wd - c tw characteristics watchdog timer monitoring time t wd (ms) watchdog timer monitoring time setting capacitance c tw ( ? f) watchdog timer reset time t wr (ms)
mb3793-34a document number: 002-08556 rev. *a page 19 of 26 11. applicat ion example 11.1 supply voltage monitor and watchdog timer 11.1.1 1-clock monitor 11.1.2 2-clock monitor 5 2 3 6 4 7 8 1 reset v cc reset ck gnd gnd gnd c tw * c tp * v cc v cc ctw ctp ck1 ck2 inh mb3793 * : use a capacitor with less leakage current. microprocessor 2 3 6 1 8 7 4 5 v cc c tw * c tp * gnd inh gnd v cc ctp ctw reset ck1 ck2 reset ck gnd v cc reset ck gnd v cc mb3793 * : use a capacitor with less leakage current. microprocessor1 microprocessor2
mb3793-34a document number: 002-08556 rev. *a page 20 of 26 11.2 supply voltage monitor and watchdog timer stop 3. setting of compulsory reset gnd c tw *c tp * v cc reset v cc ck gnd reset v cc ck gnd halt halt 5 2 3 6 4 7 8 1 reset gnd v cc inh ctw ck1 ck2 ctp mb3793 * : use a capacitor with less leakage current. microprocessor1 microprocessor2 * : use a capacitor with less leakage current. it is possible for the reset pin to fix to ?l? if the ctp pin is short-circuited to gnd. take care not to change the value of the c tp capacity because of the influe nce of tr that is used at the time. 5 2 3 6 4 7 8 1 reset v cc reset ck gnd gnd gnd c tw * c tp * resin 10 k v cc v cc ctw ctp ck1 ck2 inh mb3793 microprocessor
mb3793-34a document number: 002-08556 rev. *a page 21 of 26 12. usage precaution 1. do not configure the ic over the maximum ratings if the lc is used over the maximum rating s, the lsl may be permanently damaged. it is preferable for the device to normally operate within the re commended usage conditions. usage outside of these conditions can have a bad effect on the reliability of the lsi. 2. use the devices within recommended operating conditions the recommended operating conditions are under which the lsl is guaranteed to operate. the electrical ratings are guaranteed when the device is used within the recommended operating c onditions and under the condi- tions stated for each item. 3. printed circuit board ground lines should be set up with consideration for common impedance 4. take appropriate measures against static electricity ? containers for semiconductor materials should have anti-s tatic protection or be made of conductive material. ? after mounting, printed circuit boards should be st ored and shipped in conductive bags or containers. ? work platforms, tools, and instruments should be properly grounded. ? working personnel should be grounded with resistance of 250 k ? to 1 m ? between body and ground. 5. do not apply negative voltages the use of negative voltages below ?0.3 v may create parasitic transistors on lsi lines, which can cause malfunctions. 13. ordering information part number package remarks MB3793-34APNF 8-pin plastic sop (fpt-8p-m02)
mb3793-34a document number: 002-08556 rev. *a page 22 of 26 14. rohs compliance informat ion of lead (pb) free version the lsi products of cypress with ?e1? are co mpliant with rohs directive , and has obser ved the standard of lead, cadmium, mercu ry, hexavalent chromium , polybrominated biphenyls (pbb) , and polybrominated diph enyl ethers (pbde). the product that conforms to this standard is added ?e1? at the end of the part number. 15. labeling sample (lead free version) 16. marking format (lead free version) 2006/03/01 assembled in japan g qc pass (3n) 1mb123456p-789-ge1 1000 (3n)2 1561190005 107210 1,000 pcs 0605 - z01a 1000 1/1 1561190005 mb123456p - 789 - ge1 mb123456p - 789 - ge1 mb123456p - 789 - ge1 pb lead-free mark jeita logo jedec logo the part number of a lead-free product has the trailing characters ?e1?. ?assembled in china? is printed on the label of a product assembled in china. 3793aj xxxx e1 xxx lead free version sop-8 (fpt-8p-m02)
mb3793-34a document number: 002-08556 rev. *a page 23 of 26 17. MB3793-34APNF reco mmended conditions of mo isture sensitivity level [temperature profile for fj standard ir reflow] 1. ir (infrared reflow) 2. manual soldering (partial heating method) conditions : temperature 400c max times : 5 s max/pin item condition mounting method ir (infrared reflow) , ma nual soldering (partial heating method) mounting times 2 times storage period before opening please use it within two years after manufacture. from opening to the 2nd reflow less than 8 days when the storage period after opening was exceeded please processes within 8 days after baking (125c, 24h) storage conditions 5c to 30c, 70%rh or less (the lowest possible humidity) 260 c (e) (d') (d) 255 c 170 c 190 c rt ( b ) ( a ) (c) to note : temperature : the top of the package body (a) temperature increase gradient : average 1c/s to 4c/s (b) preliminary heating : temperature 170c to 190c, 60s to 180s (c) temperature increase gradient : average 1c/s to 4c/s (d) peak temperature : temperature 260c max; 255c or more, 10s or less (d?) main heating : temperature 230c or more, 40s or less or temperature 225c or more, 60s or less or temperature 220c or more, 80s or less (e) cooling : natural co oling or forced cooling h rank : 260c max main heating
mb3793-34a document number: 002-08556 rev. *a page 24 of 26 18. package dimensions 8-pin plastic sop lead pitch 1.27 mm package width package length 3.9 5.05 mm lead shape gullwing sealing method plastic mold mounting height 1.75 mm max weight 0.06 g 8-pin plastic sop (fpt-8p-m02) (fpt-8p-m02) c 2002 fujitsu limited f08004s-c-4-7 1.27(.050) 3.900.30 6.000.40 .199 ?.008 +.010 ?0.20 +0.25 5.05 0.13(.005) m (.154.012) (.236.016) 0.10(.004) 14 5 8 0.440.08 (.017.003) ?0.07 +0.03 0.22 .009 +.001 ?.003 45 ? 0.40(.016) "a" 0~8 ? 0.25(.010) (mounting height) details of "a" part 1.550.20 (.061.008) 0.500.20 (.020.008) 0.600.15 (.024.006) 0.150.10 (.006.004) (stand off) 0.10(.004) * 1 * 2 dimensions in mm (inches). note: the values in parentheses are reference values. ?2002-2008 fujitsu microelectronics limited f08004s-c-4-8 note 1) * 1 : these dimensions include resin protrusion. note 2) * 2 : these dimensions do not include resin protrusion. note 3) pins width and pins thickness include plating thickness. note 4) pins width do not include tie bar cutting remainder.
mb3793-34a document number: 002-08556 rev. *a page 25 of 26 document history spansion publication number: ds04-27407-1e document title: mb3793-34a power-voltage monitoring ic with watchdog timer document number: 002-08556 revision ecn orig. of change submission date description of change ** ? taoa 11/30/2009 migrated to cypress and assigned document number 002-08556. no change to document contents or format. *a 5199120 taoa 03/31/2016 updated to cypress format.
document number: 002-08556 rev. *a revised march 31, 2016 page 26 of 26 mb3793-34a ? cypress semiconductor corporation 2009-2016. this document is the property of cypress semiconductor corporation and its subsi diaries, including spansion llc ("cypress"). this document, including any software or firmware included or referenced in this document ("software"), is owned by cypress under the intellec tual property laws and treaties of the united states and other countries worldwide. cypress reserves all rights under such laws and treaties and does not, except as specifically stated in this paragr aph, grant any license under its patents, copyrights, trademarks, or other intellectual property rights. if the software is not accompanied by a license agreement and you do not otherwise have a writte n agreement with cypress governing the use of the software, then cypress hereby grants you under its copyright rights in the software, a personal, non-exclusive, nontransferable license (without the r ight to sublicense) (a) for software provided in source code form, to modify and reproduce the software solely for use with cypress hardware products, only internally within your organization, and (b) to distribute the software in binary code form externally to end users (either directly or indirectly through resellers and distributors), solely for use on cypress hardware product units. cypress also gran ts you a personal, non-exclusive, nontransferable, license (without the right to sublicense) under those claims of cypress's patents that are infringed by the software (as provided by cypress, unmodified) to make, use, distribute, and import the software solely to the minimum extent that is necessary for you to exercise your rights under the copyright license granted in the previous sentence. any oth er use, reproduction, modification, translation, or compilation of the software is prohibited. cypress makes no warranty of any kind, express or implied, with regard to this document or any software, including, but not lim ited to, the implied warranties of merchantability and fitness for a particular purpose. cypress reserves the right to make changes to this document without further notice. cypress does not assume any liability arising out of the application or use of an y product or circuit described in this document. any informati on provided in this document, including any sample design information or programming code, is provided only for reference purposes. it is the responsibility of the user of this document to properly d esign, program, and test the functionality and safety of any application made of this information and any resulting product. cypress products are not designed, intended, or authorized for use as crit ical components in systems designed or intended for the operation of weapons, weapons systems, nuclear installations, life-support de vices or systems, other medical devices or systems (including r esuscitation equipment and surgical implants), pollution control or hazardous substances management, or other uses where the failure of the device or system could cause personal injury, death, or property damage ("unintended uses"). a critical component is any component of a device or system whose failure to perform can be reasonably expected to cause the failure of the device or syste m, or to affect its safety or effectiv eness. cypress is not liable, in whole or in part, and company shall and hereby does release cypress from any claim, damage, or other liability arising from or relate d to all unintended uses of cypress products. company shall indemnify and hold cypress harmless from and against all claims, costs, damages, and other liabilities, including claims for personal inj ury or death, arising from or related to any unintended uses of cypress products. cypress, the cypress logo, spansion, the spansion logo, and combinations thereof, psoc, capsense, ez-usb, f-ram, and traveo are trademarks or registered trad emarks of cypress in the united states and other countries. for a more complete list of cypre ss trademarks, visit cypress.com. other names and brands may be claimed as property of their respective owners. sales, solutions, and legal information worldwide sales and design support cypress maintains a worldwide network of offices, solution center s, manufacturer?s representatives, and distributors. to find t he office closest to you, visit us at cypress locations . products arm ? cortex ? microcontrollers cypress.com/arm automotive cypress.com/automotive clocks & buffers cypress.com/clocks interface cypress.com/interface lighting & power control cypress.com/powerpsoc memory cypress.com/memory psoc cypress.com/psoc touch sensing cypress.com/touch usb controllers cypress.com/usb wireless/rf cypress.com/wireless psoc ? solutions cypress.com/psoc psoc 1 | psoc 3 | psoc 4 | psoc 5lp cypress developer community community | forums | blogs | video | training technical support cypress.com/support

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