Tib neeg thev naus laus zis tau mus txog nws qhov kawg nrog cov tshuab digital.
Lub microcontroller lossis microprocessor feem ntau yog siv hauv cov tshuab no, uas khaws cia, txheej txheem, thiab xa cov ntaub ntawv hauv daim ntawv digital.
Digital circuits muab thiab txais cov ntaub ntawv hauv binary lej (1s thiab 0s).
Tsis tas li ntawd, cov rooj vag logic tau tso lub hauv paus rau qhov loj ntawm cov logic circuits uas muaj nyob niaj hnub no.
Cov khoos phis tawj tau dhau los ua qhov tseem ceeb ntawm lub neej niaj hnub vim lawv tuaj yeem ua tiav ntau txoj haujlwm thiab kev ua haujlwm hauv lub sijhawm luv luv.
Ib lub luag haujlwm tseem ceeb tshaj plaws ntawm lub khoos phis tawj CPU yog ua cov txheej txheem kev xav tau siv cov khoom siv xws li Integrated Circuits, software technologies, thiab hluav taws xob circuits.
Cov khoos phis tawj siv cov lej binary ntau dua li cov lej digital rau kev ua haujlwm yooj yim. Cov rooj vag logic ua txhua yam haujlwm.
Lub rooj vag logic yog dab tsi?
Lub rooj vag logic yog ib feem ntawm cov digital circuits uas ua haujlwm ua lub tsev thaiv.
Lawv ua cov haujlwm tseem ceeb hauv kev ua haujlwm hauv digital circuitry. Cov rooj vag logic yog siv nyob rau hauv yuav luag txhua yam cuab yeej cuab tam peb siv niaj hnub no.
Logic rooj vag, piv txwv li, tuaj yeem pom ntawm cov khoom siv mobile, ntsiav tshuaj, thiab cov khoom siv nco.
Lub rooj vag logic Circuit Court txiav txim siab raws li kev sib xyaw ntawm cov cim digital xa mus rau hauv nws cov khoom siv. Feem ntau ntawm cov logic rooj vag muaj ob lub tswv yim thiab ib qho tawm.
Txhawm rau tsim cov rooj vag logic, Boolean algebra yog ua haujlwm. Thaum twg los xij, txhua lub davhlau ya nyob twg nyob hauv ib qho ntawm ob lub xeev binary: cuav lossis tseeb.
False equals xoom, where true equals one. Cov zis binary yuav txawv raws li hom logic rooj vag siv thiab cov tswv yim sib xyaw.
Lub rooj vag logic zoo ib yam li lub teeb hloov nyob rau hauv uas cov zis tau muab tua nyob rau hauv ib txoj hauj lwm thiab nyob rau hauv lwm yam. Cov rooj vag logic feem ntau siv hauv kev sib xyaw ua ke (ICs).
Dab tsi yog ntau hom logic rooj vag?
Logic rooj vag tau muab faib ua xya hom:
- THIAB
- OR
- TSIS
- TSIS PUB
- NAND
- XOR
- XNOR
Tam sim no, cia peb tob tob rau hauv txhua tus ntawm lawv.
1. THIAB Gate
Nws yog lub rooj vag logic ntawm nws cov theem pib tshaj plaws. Muaj ob hom inputs muaj: 0 thiab 1.
Nws txoj haujlwm zoo ib yam li tus neeg teb xov tooj "thiab". Yog tias tag nrho lub rooj vag cov khoom siv muaj tus nqi tib yam (qhov tseeb), qhov tshwm sim yog 1, lwm tus 0 raug xa tawm thaum ib qho ntawm cov khoom siv muaj tus nqi tib yam (tsis tseeb).
Qhia
Y = AB
Thaiv tau Diagram
Table tseeb
A | B | tso zis |
0 | 0 | 0 |
0 | 1 | 0 |
1 | 0 | 0 |
1 | 1 | 1 |
2. LUB rooj vag
LOSSIS cov rooj vag muaj ob lossis ntau qhov kev nkag thiab yog hom logic rooj vag.
Nws tsuas tuaj yeem tsim tau ib qho kev tawm ntawm ib lub sijhawm, txawm li cas los xij. Raws li algebra, OR lub rooj vag tsim cov lej ntawm cov ntaub ntawv nkag.
Lub rooj vag LOS YOG cov zis yog ib txwm muaj tseeb (1) thaum tsawg kawg yog ib qho ntawm nws cov khoom muaj tseeb; txwv tsis pub, qhov tshwm sim yog xoom.
Qhia
Y = A+B
Thaiv tau Diagram
Table tseeb
A | B | tso zis |
0 | 0 | 0 |
0 | 1 | 1 |
1 | 0 | 1 |
1 | 1 | 1 |
3. TSIS TXAUS SIAB
Nws tuaj yeem tsuas muaj ib qho kev tawm tswv yim thiab tawm ntawm txhua lub sijhawm. Tsis yog rooj vag, ntawm qhov tod tes, feem ntau yog siv los tsim cov zis ntau dua li cov khoom siv.
Qhov tshwm sim yog 0 yog tias TSIS TXAUS SIAB lub tswv yim yog 1; Yog hais tias qhov input yog 0, qhov tshwm sim yog 1.
Vim nws txoj haujlwm, nws tseem hu ua inverter. Lub rooj vag TSIS yog qee zaum hu ua lub rooj vag Unary vim tias muaj cov lej tseeb ntawm tag nrho cov khoom siv.
Qhia
Y=A'
Thaiv tau Diagram
Table tseeb
Cov tswv yim (A) | Cov zis (NOT A) |
0 | 1 |
1 | 0 |
4. NOR Gate
Nws yog tsim los ntawm ob qho tib si LOSSIS thiab tsis yog rooj vag. Lub rooj vag NOR yog qhov polar opposite ntawm OR lub rooj vag raws li nws ua haujlwm li cas.
Thaum twg los tau, lub rooj vag NOR tuaj yeem muaj ob lossis ntau qhov kev tawm tswv yim tab sis tsuas yog ib qho tso tawm. Thaum tag nrho cov inputs yog xoom, NOR rooj vag rov 1; Txawm li cas los xij, yog tias ib qho ntawm cov khoom siv yog ib qho (1), cov zis yog xoom (0).
Qhia
Y=(A+B)'
Thaiv tau Diagram
Table tseeb
A | B | tso zis |
0 | 0 | 1 |
0 | 1 | 0 |
1 | 0 | 0 |
1 | 1 | 0 |
5. NAND Rooj vag
Nws yog ib qho kev sib koom ua ke ntawm AND rooj vag thiab tsis yog lub rooj vag uas tuaj yeem lees txais ob lossis ntau qhov khoom siv tib lub sijhawm tab sis tsuas yog tso tawm ib qho.
Txoj kev ntawm NAND rooj vag yog qhov hloov pauv ntawm qhov AND rooj vag. Thaum ib qho ntawm NAND rooj vag cov tswv yim yog 0, cov zis 1 tau txais; txwv tsis pub, cov zis yog ib txwm 0.
Qhia
Y = (AB)'
Thaiv tau Diagram
Table tseeb
A | B | tso zis |
0 | 0 | 1 |
0 | 1 | 1 |
1 | 0 | 1 |
1 | 1 | 0 |
6. XOR rooj vag
Qhov Exclusive-OR, feem ntau hu ua 'Ex-OR' rooj vag, yog lub rooj vag digital logic uas siv ntau tshaj ob lub tswv yim tab sis tsuas yog tso tawm ib qho nqi xwb.
XOR Rooj vag cov zis yog '1' yog tias ob qho ntawm cov khoom siv yog '1.' Qhov tshwm sim yog '0' yog tias ob lub tswv yim yog '1.' Qhov tshwm sim yog '0' yog tias ob lub tswv yim yog '0.'
Qhia
Y=A'.B+A.B'
Thaiv tau Diagram
Table tseeb
A | B | tso zis |
0 | 0 | 0 |
0 | 1 | 1 |
1 | 0 | 1 |
1 | 1 | 0 |
7. XNOR rooj vag
Lub Exclusive-NOR, feem ntau hu ua 'EX-NOR' rooj vag, yog lub rooj vag digital logic uas siv ntau tshaj ob lub tswv yim tab sis tsuas yog tso tawm ib qho.
Yog tias ob qho kev tawm tswv yim yog '1,' XNOR Gate cov zis yog '1.' Qhov tshwm sim yog '0' thaum ob lub tswv yim yog '0.' Qhov tshwm sim yuav yog '0' yog tias ib qho ntawm cov khoom nkag yog '0.'
Qhia
Y=A.B+A'B'
Thaiv tau Diagram
Table tseeb
A | B | tso zis |
0 | 0 | 1 |
0 | 1 | 0 |
1 | 0 | 0 |
1 | 1 | 0 |
Logic Gate Siv
- Cov rooj vag logic tuaj yeem ua ke nrog ntau txoj hauv kev, thiab cov khoom siv tshiab kawg, satellites, thiab txawm tias cov neeg hlau xav tau ntau lab ntawm cov kev sib txuas no.
- Logic rooj vag yog siv nyob rau hauv ntau yam kev siv. Chips (ICs) muaj cov khoom no, uas muaj nyob rau hauv computers, xov tooj, laptops, thiab lwm yam khoom siv hluav taws xob.
- Hloov cov ntaub ntawv, suav, thiab ua cov ntaub ntawv txhua yam tau txais txiaj ntsig los ntawm cov rooj vag logic. Logic rooj vag yog siv dav hauv transistor-transistor logic thiab CMOS electronics.
- Cov tswb nrov, buzzers, keyboards, thiab txoj kev teeb pom kev zoo siv cov logic rooj vag sib txuas yooj yim. Cov rooj vag no tau siv dav hauv ntau qhov kev lag luam txij li lawv tuaj yeem xaiv pib lossis nres nyob ntawm qhov laj thawj.
pros
- Lawv pheej yig. Yog li ntawd, lawv dhau los ua tus nqi zoo.
- Nws xav tau hluav taws xob tsawg.
- Logic 0 thiab logic 1 tau sib cais kom meej.
- Ua haujlwm raws li lub hauv paus rau txhua lub gadget digital.
- Siv Boolean Algebra los ua cov haujlwm kev xav.
cons
- Logic rooj vag realization tsis yog xav tau nyob rau hauv ib tug ntau sophisticated system los yog Circuit Court tsim vim nws yog ib qho nyuaj rau muab thiab txuas lawv tsim nyog.
- Kev ua haujlwm tsis tshua muaj hluav taws xob yog qhov zoo rau muaj.
- Lub tswv yim thiab cov zis yog sib cais los ntawm lub sij hawm ncua.
xaus
Qhov kev khiav ntawm hluav taws xob tam sim no tau cuam tshuam los ntawm lub rooj vag logic.
Koj yuav tsum muab cov tswv yim rau nws, thiab yog tias qhov hloov pauv tau qhib, tam sim no tuaj yeem ntws los ntawm nws.
Cov txheej txheem rau cov dej ntws tam sim no koj tab tom ua haujlwm raws li kev hloov pauv feem ntau tau piav qhia los ntawm lub rooj vag logic.
Koj tuaj yeem siv cov rooj vag logic kom ua tiav cov haujlwm binary xws li ntxiv, sib npaug, thiab faib.
Sau ntawv cia Ncua