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Logic & Flip Flops-SN74LVC74APWR

sharaxaad gaaban:

Qalabka SNx4LVC74A waxay isku daraan laba geesood oo togan oo kiciyay nooca D-flip-flops-ka mid ku habboon
qalab.
SN54LVC74A waxaa loogu talagalay hawlgalka 2.7-V ilaa 3.6-V VCC, iyo SN74LVC74A waxaa loogu talagalay
1.65-V ilaa 3.6-VCC hawlgalka.Heer hoose oo ah preset-ka (PRE) ama cad (CLR) gelinta wax-gelinta ayaa dejisa ama dib u dajiya wax soo saarka, iyada oo aan loo eegin heerarka agabka kale.Marka PRE iyo CLR aysan shaqayn (sare), xogta xogta (D) gelinta buuxinta shuruudaha waqtiga dejinta ayaa loo wareejiyaa wax soo saarka cidhifka togan ee garaaca saacada.Kicinta saacaddu waxay ku dhacdaa heerka korantada oo si toos ah ulama xidhna wakhtiga kor u kaca ee garaaca saacadda.Ka dib inta u dhaxaysa waqtiga-haynta, xogta ku jirta galinta D waa la bedeli karaa iyada oo aan saameyn ku yeelan heerarka wax soo saarka.Xogta I/O-yada iyo gelinta kontoroolka waa dulqaad xad dhaaf ah.Habkani wuxuu u oggolaanayaa isticmaalka qalabkan hoos-u-tarjumida jawi isku-dhafan.


Faahfaahinta Alaabta

Tags Product

Sifooyinka Alaabta

NOOCA SHARAXA
Qaybta Wareegyada isku dhafan (ICs)

macquul

Flip Flops

Mfr Qalabka Texas
Taxane 74LVC
Xidhmada Cajalad & Gariir (TR)

Jaran Cajalad (CT)

Digi-Reel®

Xaaladda Alaabta Firfircoon
Shaqada Deji (Preset) oo dib u deji
Nooca D-Nooca
Nooca wax soo saarka Kaabayaal
Tirada Qaybaha 2
Tirada Bits halkii Cunsurka 1
Soo noqnoqda saacada 150 MHz
Dib u dhigista ugu badan ee faafinta @ V, Max CL 5.2ns @ 3.3V, 50pF
Nooca kicinta Edge Togan
Hadda - Wax-soo-saarka Sare, Hoose 24mA, 24mA
Voltage - Supply 1.65V ~ 3.6V
Hadda - Quiescent (Iq) 10 µA
Awood-gelinta wax-soo-gelinta 5 pF
Heerkulka shaqada -40°C ~ 125°C (TA)
Nooca Koritaanka Dusha sare
Xidhmada Aaladda Bixiyaha 14-TSSOP
Xidhmada / Kiis 14-TSSOP (0.173 ", 4.40mm ballac)
Lambarka Alaabta Saldhigga 74LVC74


Dukumentiyada & Warbaahinta

NOOCA kheyraadka XIRIIRKA
Xaashiyaha xogta SN54LVC74A, SN74LVC74A
Alaabta sifaysan Analog Solutions

Xalka macquulka ah

Baakadaha PCN Reel 10/Jul/2018

Reels 19/Apr/2018

Xaashida Xogta HTML SN54LVC74A, SN74LVC74A
Moodooyinka EDA SN74LVC74APWR ee SnapEDA

SN74LVC74APWR ee Ultra Library

Kala soocida Deegaanka & Dhoofinta

sifada SHARAXA
Xaaladda RoHS ROHS3 Waafaqsan
Heerka Dareenka Qoyaanka (MSL) 1 (aan xadidnayn)
Xaaladda GAAR GAAR Aan Saameyn
ECN DHAGTA99
HTSUS 8542.39.0001

Flip-Flop iyo Latch

Flip-FlopiyoLatchwaa aaladaha elektiroonigga ah ee caadiga ah oo leh laba gobol oo deggan oo loo isticmaali karo in lagu kaydiyo macluumaadka, iyo hal flip-flop ama latch ayaa kaydin kara 1 xoogaa macluumaad ah.

Flip-Flop (oo loo soo gaabiyo FF), sidoo kale loo yaqaan albaabka bistable, oo sidoo kale loo yaqaan flip-flop bistable, waa wareeg macquul ah oo dhijitaal ah oo ka shaqeyn kara laba gobol.Flip-flops waxay ku sii jirayaan xaaladdooda ilaa ay ka helayaan garaaca garaaca wadnaha, oo sidoo kale loo yaqaan kiciye.Marka garaaca garaaca garaaca la helo, wax soo saarka flip-flop ayaa isbedelaya xaalada iyadoo la raacayo qawaaniinta ka dibna wuxuu ku sii jirayaa gobolkaas ilaa kiciye kale laga helayo.

Latch, xasaasi u ah heerka garaaca garaaca wadnaha, isbedel xaaladda hoos heerka garaaca garaaca saacadda, latch waa unug kaydinta heerka-kicin, iyo ficilka kaydinta xogta ku xiran tahay heerka qiimaha signalka gelinta, kaliya marka xadhiggu waa in awood gobolka, wax-soo-saarku wuxuu bedeli doonaa gelinta xogta.Latch way ka duwan tahay flip-flop, ma aha xogta la qabadsiinayo, calaamada wax-soo-saarka waxa ay isku beddeshaa signalka gelinta, sida calaamadda dhex marta kaydka;mar alla markii calaamada latch-ku u dhaqmo sidii dabool, xogtu waa xiran tahay oo signalka wax gelintu ma shaqeeyo.Silsiladda waxa kale oo loo yaqaan fur-fure, taas oo macnaheedu yahay in wax-soo-saarku uu yahay mid daah-furan marka aan la xidhin.

Farqiga u dhexeeya latch iyo flip-flop
Latch iyo flip-flop waa aaladaha kaydinta binary ee leh shaqada xusuusta, kuwaas oo ah mid ka mid ah aaladaha aasaasiga ah ee lagu sameeyo wareegyada macquulka ah ee kala duwan.Farqiga u dhexeeya ayaa ah: xidhitaanku wuxuu la xiriiraa dhammaan calaamadaha wax soo gelinta, marka calaamadda wax-gelinta ahi ay beddesho xirmada, ma jiro terminal saacad ah;flip-flop waxaa gacanta ku haya saacadda, kaliya marka saacadda la kiciyo si loo muunado gelinta hadda, dhalisa wax soo saarka.Dabcan, sababtoo ah labadaba latch iyo flip-flop labaduba waa caqli-gal waqtiyeed, wax-soo-saarku kuma xirna oo kaliya wax-soo-saarka hadda, laakiin sidoo kale wuxuu la xiriiraa wax-soo-saarkii hore.

1. Laashka waxa kiciya heer, ee ma aha kontorool isku xidhan.DFF waxa kiciyay cidhifka saacada iyo kontoroolka isku xidhan.

2. Latch waa mid xasaasi u ah heerka gelinta waxaana saameeya daahitaanka fiilooyinka, markaa way adagtahay in la hubiyo in wax soo saarka uusan soo saarin burrs;DFF aad ayey ugu yar tahay inay soo saarto burs.

3, Haddii aad isticmaasho gate wareegyada si aad u dhisto latch iyo DFF, latch wuxuu cunaa ilaha albaabka ka yar kan DFF, taas oo ah meel ka saraysa daboolka marka loo eego DFF.Sidaa darteed, is dhexgalka isticmaalka latch ee ASIC wuu ka sarreeyaa DFF, laakiin liddi ku ah FPGA, ma jiro halbeeg latch ah oo FPGA ah, laakiin waxaa jira unug DFF, LATCH wuxuu u baahan yahay wax ka badan hal LE si loo xaqiijiyo.Latch waa heer kiciyay, taas oo u dhiganta in la haysto dhamaadka karti, ka dib firfircoonida (waqtiga karti-siinta) waxay u dhigantaa silig, kaas oo isbeddelaya wax soo saarka ayaa ku kala duwan wax soo saarka.Xaaladda aan la shaqayn waa in la ilaaliyo calaamadda asalka ah, taas oo la arki karo iyo kala duwanaansho-flop, dhab ahaantii, marar badan oo xadhig ah maaha beddelka ff.

4, xadhigu waxa uu noqon doonaa mid aad u adag falanqaynta wakhtiga.

5, wakhtigan xaadirka ah, latch waxaa loo isticmaalaa kaliya wareegga aadka u sarreeya, sida intel's P4 CPU.FPGA waxa ay leedahay unug xargo ah, unugga diiwaanka waxa loo habayn karaa sidii unug latch ah, buug-gacmeedka xillinx v2p waxa loo habayn doonaa sidii diiwaan-qashin, lifaaquna waa jaantus qaab-dhismeedka xillinx badhkeed.Moodooyinka kale iyo soosaarayaasha FPGAs uma tagin inay hubiyaan.Shakhsi ahaan, waxaan u maleynayaa in xillinx uu awood u leeyahay inuu si toos ah ula qabsado beddelka ayaa laga yaabaa inuu dhib badan yahay, si loo sameeyo dhowr LE, si kastaba ha ahaatee, ma aha qalabka xillinx jeex kasta waa la habeyn karaa, altera kaliya DDR interface wuxuu leeyahay unug xirmo gaar ah, guud ahaan kaliya wareegga-xawaaraha sare waxaa loo isticmaali doonaa in naqshadeynta latch.altera's LE ma aha qaab-dhismeed xirmo, oo hubi sp3 iyo sp2e, iyo kuwa kale oo aan hubin, buuggu wuxuu sheegayaa in qaabayntan la taageeray.Odhaahda wangdian ee ku saabsan altera waa sax, altera's ff laguma hagaajin karo si loo xidho, waxay isticmaashaa miiska raadinta si ay u hirgeliso xadhig.

Xeerka nakhshadeynta guud waa: iska ilaali in la xidho nashqadaha badankooda.waxay kuu ogolaan doontaa inaad naqshadayso wakhtiga la dhammeeyey, waana mid aad u qarsoon, aan ruug-caddaa ahayn ma heli karo.qabsashada khatarta ugu weyni waa in aan la shaandhayn burooyinka.Tani aad bay khatar ugu tahay heerka xiga ee wareegga.Sidaa darteed, ilaa iyo inta aad isticmaali karto booska D-flip-flop, ha isticmaalin dabool.


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