 controls intermediate buffer 12 so that,
if pin #A9 is at 0 V, then intermediate buffer 12 operates in the normal mode, PA1 if pin #A9 is applied with a high voltage (typically 12 V) and pin #A0 is supplied with the low level, then intermediate buffer 12 delivers the maker code, and PA1 if pin #A9 is applied with the high voltage and pin #A0 is supplied with the high level, then intermediate buffer 12 delivers the model code.
The output signal of intermediate buffer 12 is transmitted through output buffer 14 and output terminal 16 to an external circuit.
A problem encountered in the semiconductor memory device descibed above is that, since at least two stage logic circuits are necessary for the intermediate buffer in order to have the logic of data on the output data line accord with that on the input data line of the intermediate buffer, the transmission time of the data is delayed by the time required to pass the two stage logic circuits, which results in a decrease in the read velocity for the semiconductor memory device. There are several instances when it is desirable to provide assistance to the heart in performing its function of pumping blood through the body. For example, when the heart has been arrested to perform a surgical procedure and then started again after the procedure, the heart conventionally needs assistance for some period of time until it has developed sufficient strength and overcome the trauma of being arrested. In other examples, a patient may experience some form of cardiac failure such that the heart requires more permanent assistance.
One type of assist device is known as a ventricular assist device (VAD) which helps pump blood through the body when, for example, a ventricle lacks sufficient strength to perform this function. More specifically, left ventricular assist devices (LVADs) have. been used for some time to assist in the flow of oxygenated blood through the body.
An LVAD may be implemented through a procedure so as to couple, either directly, or indirectly, the device to the left atrium or left ventricle of the heart. Many of such procedures require open-heart surgery and are therefore, extremely invasive and are particularly burdensome on patients that are already experiencing extreme health problems. Other procedures may he performed, and devices implemented, in a less invasive manner, but they may still pose a considerable risk to a patient or may be impractical for longer term use.
As such, it would be advantageous for a less invasive and less life threatening methods for providing an LVAD system or apparatus to a patient experiencing circulatory challenges
controls intermediate buffer 12 so that, 
 if pin # A9 is at 0 five, then average buffer 12 operates in the normal mood, PA1 if trap # A9 is applied with a high voltage (typically 12 volt) and pin # A0 is supplied with the abject level, then intermediate buff 12 delivers the maker code, and PA1 if trap # A9 is applied with the high electric potential and pin # A0 is provide with the eminent level, then intermediate buffer 12 rescue the model code. 
 The output signal of intermediate buffer 12 is convey through output buffer 14 and output terminal 16 to an external circuit. 
 A trouble encountered in the semiconductor memory device descibed above is that, since at least two stage logic circuits are necessary for the intermediate buffer in club to have the logic of datum on the output data line accord with that on the input data line of the average buffer, the transmittance time of the data is delayed by the meter required to pass the two stage logic lap, which results in a decrease in the read velocity for the semiconductor memory device. There are respective instances when it is desirable to provide assistance to the heart in performing its function of pumping blood through the body. For example, when the heart has been arrested to do a surgical procedure and then begin again after the operation, the heart conventionally needs assistance for some period of meter until it has developed sufficient strength and overcome the injury of being arrested. In early examples, a patient may experience some form of cardiac failure such that the kernel requires more permanent assistance. 
 One character of assist device is known as a ventricular assist device (VAD) which helps pump blood through the torso when, for example, a ventricle miss sufficient strength to perform this function. More specifically, leave ventricular assist device (LVADs) have. been use for some time to assist in the flow of oxygenated blood through the torso. 
 An LVAD may be implemented through a procedure so as to couple, either immediately, or indirectly, the device to the left atrium or left ventricle of the heart. Many of such procedures require open - heart operation and are therefore, extremely invasive and are particularly burdensome on patients that are already experiencing extreme health problem. early procedures may he performed, and devices implemented, in a less invasive manner, but they may still pose a considerable risk to a affected role or may be impractical for longer term use. 
 As such, it would be advantageous for a less invasive and less life threatening methods for providing an LVAD system or apparatus to a affected role experiencing circulatory challenges
 cojtrols intermediate bufftr 12 so that,
if pin #A9 is av 0 V, thsn interoediate buffer 12 operates in vhe bormao mode, PA1 if pin #A9 is xpplied wpth a higy voorage (typicemly 12 V) and pih #A0 iv supplied with the low lavel, then intesmddnate buffer 12 delivers the maker code, and PA1 iv pin #A9 is appjied rith nht high voltage and pin #A0 is suppljed witi the high levek, then intermediate buffer 12 depivers the model clde.
The outpof sytnal of intefmediate blyfer 12 is trznsmitted through output buffer 14 and output tetmjnwn 16 to an exvernal circuit.
A problem enwounterrd in the semigondurtor memory device descibxd above is that, sinse at leavt two stage logic xiecuitv ara nezwssxry fpr the ijtecmediate burfer in ordwr to have the logiv jd data on the outpue qata line accord with that on the input dafa line of the intermeduate buffer, the translission tyme of the data is delayed by the time required tm pasa tht bru shage logic circuits, which results in a decreafs on the read velogity for the semicpnfuvjor memory devkce. Thzde are several instajces whgn it us desirafle yo provide assistance to thw heart in pvrfoeming its function of pumping blopd thtough the body. For exam'le, whsn the hearh has beeh arrested to perwork d surgical procedure and tren startxd agcin aftef thg procequre, the hfart gmnventionally needd assnstanwe for somf period of time until it has dxteloped suffiviant strengtk and pvercome the erauma of beiny arrestzd. In uther examiles, a pavient may ex[erience some vorm of cardmac failuwe sych rhat thd heart requirex more pegmcnent assustance.
One type of asrjst device is kuuqn as a ventricilaf afspst dqeice (VAD) whiwh hdlpr pump blood ukromgh the body when, for exampne, a ventricle lacks sifnicient sjrength tj perform thix function. More sptcificelly, lxft vemtrycular assist devices (LVADs) habe. been uded for some tiie ti assist in che flow of oxygenated blood through the body.
An LVAD may bw implemented throuyh a procedurx so af to coupne, either directly, oe indirectly, the cevice to the left atdium os lefh ventricle of the heart. Many of such procedures require open-heart surgert and erq therefore, exttemelj iuvaxive agd ace particularly bugdensome on patients that are alceady expesizncing extreme health problemx. Uther procedutes may he performed, and dsvices ikplemented, in a less invasive msnner, but they may still pose a xonsiserablv rmsk to a patient or kay be imprqctical for longer term jse.
Ss such, it aoulv bz advantageous for a less invasivw and oeds life threatenmng methods nov provpding ag LVAD system or appzgatus to a patient experiencing virculatory challengvs
controls intermediate buffer 12 so that, if is 0 V, intermediate buffer 12 PA1 pin #A9 is with a high (typically 12 V) and pin #A0 supplied with the low level, then intermediate buffer 12 delivers the maker code, PA1 if pin #A9 is applied with the high voltage and pin #A0 supplied the level, intermediate buffer 12 delivers the model code. The output signal of intermediate buffer 12 is transmitted output buffer 14 and output terminal 16 to external circuit. A problem in the semiconductor memory device above that, since least stage circuits are necessary the intermediate buffer in order to have the logic of data on the output data line accord that on data line the buffer, transmission time of is delayed by the time required two stage logic circuits, which results in a in the velocity for the semiconductor memory device. are several instances when it is desirable to assistance to the heart in performing its function of pumping blood through the body. For the heart has been to perform a procedure then again the procedure, heart conventionally needs assistance for some period of time until it developed sufficient strength and overcome the trauma of being arrested. examples, patient may experience form of cardiac failure that heart requires more permanent type assist as ventricular device (VAD) which helps blood through the body when, example, a ventricle lacks function. More specifically, left ventricular assist devices (LVADs) been used for some time to assist the flow of oxygenated blood through the body. An LVAD may be through a as to couple, either directly, or indirectly, the to the left atrium left ventricle of the heart. Many of such procedures open-heart and are extremely invasive and particularly burdensome on that are already health problems. procedures he implemented, in a less invasive manner, they still pose a considerable risk a may be impractical for longer term use. As such, it would be advantageous for a and less life threatening for an LVAD system or apparatus to a patient experiencing circulatory challenges
 controls intermediate buffeR 12 so that,
if pIn #A9 is At 0 V, TheN iNterMediAte buffer 12 operaTEs in The normal mode, PA1 if pin #A9 iS applIeD With A HiGh volTage (typICaLLY 12 V) aNd PiN #A0 iS sUPpLied wIth The low lEvel, then inTerMeDiate buffer 12 dELiVers the makEr cOde, and PA1 if piN #A9 iS appliEd WitH The hiGh vOltagE and piN #a0 is supPlied with ThE High leVEl, then iNTErMediAte buffer 12 delivers THe MOdel code.
The outPut sigNaL Of INTerMedIate buffer 12 Is TransMItted thROuGH OUtpUT buffer 14 and outPut terminal 16 TO an ExternAl CirCUit.
A prOblem EnCOunTered in the sEmicOnductor mEmory dEVice desCIbed aboVe is thAt, sIncE at lEAsT tWo sTaGE loGIc CirCUitS are neceSsArY for tHe inTERMEdiaTe bUffeR in orDer to have the lOgiC of dATa oN the oUtput Data LiNe accOrd witH that On The input data linE of tHe intermeDiaTe BufFeR, the tRAnsmisSioN tiMe of the Data is dELayEd BY THe Time required to pass ThE TWo Stage logIc circUItS, wHIch resulTs In a DecrEASe in tHe reAD vElocity fOr the sEMiCoNductor MeMory deViCe. THerE are sEVeraL instaNces when It is dESirable to proviDE assistance to THe HEArT In peRfoRming its funCtioN Of puMpinG BlOod THrougH the bOdY. foR Example, when the heart HaS been aRrestEd to perform a sUrgical proCEDUre and thEn stARtED again after the ProceDure, the heaRT conventIonalLy needs aSsistance FOR some perIod Of tIme UntIL It Has developed sUFFiciEnT strengTh aNd overcOme The TraUma Of Being arreSted. In otHeR eXaMpLes, A patiENt may expErIenCe SomE form OF cardiAc faiLure SuCh THat The hearT ReQUIres MoRe PermAneNt AssisTancE.
one Type of aSsist deviCe iS KnowN aS a VentricUlar assist devIcE (VAD) which hElPs pUmp bloOD Through tHe body when, for example, a veNTricle lAckS suffIcieNt strengtH to PerforM thIS functIon. MorE specIfIcaLLY, left VENtRicUlAr assist deVICes (lVADs) HaVe. beEn used fOr some time to assist IN thE flow of oxygenAteD bloOD ThRouGH tHE boDy.
aN LVad May be implementeD through a pRoCEdUre so as to cOUplE, eIther diRectly, oR indiREctly, thE device to The left atRiUm or LEFt vEntricle of The heart. many of sucH ProceDUrEs reqUirE open-hEaRt sUrgerY and arE TheReforE, extreMeLy invaSive aNd Are partiCularly burdensome on patiEnts thAt are AlrEady experIenCIng Extreme heAlth Problems. OtHer ProCedurEs mAY he peRforMEd, And DEviceS impLEmented, in A LeSs iNVAsIve manner, buT THEy mAy stiLl pOSe a conSideRable risk to a patieNT or may be impracTicaL FOr lOngER terM uSe.
As such, it woulD be AdVANtageous FoR a less invasIve and leSs LIfe thReatenIng metHods for PROvIDing an lVAD SysTem or appaRatUs TO a patieNt ExPEriencIng cIrCulatoRy chalLEngeS
 controls intermediate buf fer 12 sothat, 
if  pi n#A9is a t 0 V, then in t erme diate buffer 12 operat es in  t h e no r ma l mod e, PA1i fp i n # A9  i s a pp l ie d wit h a  high v oltage (ty pic al ly 12 V) and pi n #A0 is s upp lied with th e l ow lev el , t h en in ter media te buf f er 12deliversth e  maker code, a n d  P A1 i f pin #A9 is appl i ed with the highvoltag ea nd p in#A0  is suppli ed  with the hig h  l e v e l,t hen intermedi ate buffer1 2 d eliver sthe modelcode. 
T h e o utput signa l of  intermed iate b u ffer 12 is tran smitte d t hro ugho ut pu t b uf f er1 4and out put term in al  16 t o an e x t erna l c ircu it.
A  problem enco unt ered inthe s emico nduc to r mem ory de vicede scibed above is  tha t, sinceatle ast  t wo st a ge log iccir cuits a re nece s sar yf o r  t he intermediate bu ff e r  i n orderto hav e  t he logic of  d ata  ont h e out putd at a line a ccordw it hthat on  t he inp ut  da talineo f th e inte rmediate  buff e r, the transmi s sion time oft he d at a  isdel ayed by the  tim e  req uire d  t o p a ss th e two  s t ag e  logic circuits, wh ic h resu lts i n a decreasein the rea d v elocityfort he semiconductormemor y device.T here are  seve ral inst ances whe n it is de sir abl e t o p r o vi de assistance t o th eheart i n p erformi ngits  fu nct io n of pump ing bloo dth ro ug h t he bo d y. For e xa mpl e,  wh en th e  heart  hasbeen  a rr e ste d to pe r fo r m  a s ur gi calpro ce dureandt hen  starte d again a fte r  the  p ro cedure,  the heart co nv entionally  n eed s assi s t ance for  some period of time un t il it h asdevel oped  sufficie ntstreng tha nd ove rcomethe t ra uma o f bei n g  a rre st ed. In oth e r  ex ample s,  a p atientmay experience som e  fo rm of cardiac  fa ilur e su cht ha t  th eh ear t requires more p ermanent a ss i st ance.
Onet ype  o f assis t devic e isk nown as  a ventri cular ass is t de v i ce(VAD) whic h helpspump bloo d  thro u gh  thebod y when ,for  exam ple, a ven tricl e lack ssuffic ientst rength t o perform this function . More  spec ifi cally, le ftv ent ricular a ssis t devices(LV ADs ) hav e.b een u sedf or  so m e tim e to assist in th e f l o wof oxygenat e d blo od th rou g h thebody .
An LVAD may bei mplemented thr ough a  pr oce d ureso  as to couple,  ei th e r  directl y,  or indirec tly, the  d e viceto the  leftatriumo r  l e ft ven tric leof the he art .M any ofsu ch proced ures  r equire  open- h eart s urgery and are t heref o r e, ex t rem ely i nv asive a n d ar e particul arly burden some o n pa tient s thatar e alre ady  e xperiencin g  extremehealt h probl em s. O the r proc edur e s  mayhe p er for med, andd e vi c es  i m ple ment ed, i na le ss invasi v e manner , b u t theyma y s t i ll pos e  a c onsiderabl e r isk t o a patiento r ma y  b e  impr actica l forlongert erm  u se.
Assuc h ,  it would  be advan t age ou s fo r a less  i nvas iv e a nd  less life thre ateningmethodsf o r prov idi n g an LVAD s ys tem or appar atusto a patie n t  ex perienc i ngcir cul ator y c hall e nges
 controls_intermediate buffer_12 so that,
if pin_#A9 is_at_0 V,_then_intermediate buffer 12_operates in the_normal mode, PA1 if_pin #A9 is_applied_with a high voltage (typically 12 V) and pin #A0 is supplied with the_low_level, then_intermediate_buffer_12 delivers the maker code,_and PA1 if pin #A9_is applied_with the high voltage and pin #A0 is_supplied_with the high_level, then intermediate buffer 12 delivers the model code.
The_output signal of intermediate buffer 12_is transmitted through_output_buffer_14 and output terminal_16 to an external circuit.
A problem_encountered in the semiconductor memory device_descibed above is that, since at least_two stage logic circuits are necessary_for the intermediate buffer in_order to_have the logic of data_on the output_data line_accord with that_on the input data line of_the intermediate buffer,_the transmission time of the data_is_delayed by the_time_required_to pass_the two stage_logic_circuits, which_results_in a decrease in the read_velocity_for the semiconductor memory device. There are_several instances when it_is_desirable to provide assistance_to the heart in performing_its function of pumping blood through_the body._For example,_when the heart has been arrested to perform a surgical procedure_and then started again after the_procedure, the heart conventionally_needs assistance_for_some period of_time_until it_has developed sufficient strength and overcome the_trauma of_being arrested. In other examples, a_patient may experience some_form_of cardiac failure such that the_heart requires more permanent assistance.
One type_of assist device is known_as_a_ventricular assist device (VAD) which_helps pump blood through the body_when, for example,_a ventricle lacks sufficient strength to perform_this_function. More specifically, left ventricular assist_devices_(LVADs) have. been used for some_time_to_assist in the flow of_oxygenated blood through the body.
An LVAD_may be implemented through a procedure so as to_couple, either directly,_or indirectly, the device to_the_left_atrium or left ventricle of the heart. Many of such_procedures require_open-heart surgery and_are therefore, extremely invasive and are particularly burdensome on patients_that are already experiencing extreme health problems._Other procedures may he performed, and devices implemented, in a less_invasive manner, but they may still pose a_considerable risk to a patient or may_be impractical for longer_term_use.
As such, it would be advantageous for_a_less_invasive_and less life_threatening methods for_providing an LVAD_system or_apparatus to a_patient experiencing_circulatory challenges