Kuyang'ana 74l74: Kusanthula mwatsatanetsatane ndi zinsinsi, mawonekedwe, komanso kugwiritsa ntchito milandu
2024-07-22 1995

A 74snes74 ndi Flip-Flip-flop yokhala ndi mitundu yosiyanasiyana.Nkhaniyi idzetsa mafilimu a 74l74 ndi ntchito, mawonekedwe, kapangidwe kake ndi mfundo zogwirira ntchito, magawo aluso ndi magwiridwe, kuti mumvetse bwino izi.

Kataloji

Kodi D Flip-flop ndi chiyani?

D Flip-flop ndi chipangizo chokumbukira chokumbukira ndi ntchito yokhazikika komanso malo awiri okhazikika kuti asunge data 1-biary.Ndi gawo lofunikira kwambiri lomwe limapanga mabwalo osiyanasiyana, komanso gawo lofunikira mu madera otsimikizira a digito.Chifukwa chake, D Flip-flop ili ndi mapulogalamu angapo mu makina a digito ndi makompyuta.Flip-flop ili ndi mayiko awiri okhazikika, i.e. 0 ndi 1.

Flip-flip-flop (Flip-Flip-Flip-Flip-Flip-Flip-Flip) imakhala ndi zipata zinayi komanso zosakhalapo, zomwe g1 ndi g2 zimapanga phomphoPamene Hip-Flip-Flip-Flop imagwira ntchito mode-Trigger Mode, chizindikirocho liyenera kukhala lolowera pamaso pa chizindikirocho chikubwera.Ngati chizindikiro chododometsa chilipo pamayendedwe oyambira, mkhalidwe wa Flip-Flip-flop akhoza kukhala olakwika.Komabe, ma trageger amalola chizindikiro kukhala cholowa chachiwiri chogawikana pamaso pa CP chimangoyambitsa.Izi zimachepetsa nthawi yolumikizidwa kuti isokonezedwe, motero kuchepetsa mwayi wosokoneza.Flip-flip-flop imadziwikanso ngati scress drip-flip-flop.Flip-flop-flop imatha kuphatikizidwa ndikulumikiza ma flops awiri mu mndandanda, koma CP of Flip-Flip-Flip-Flip-Flop imafunikira kulowa pachipata chosakhalapo.

Mwachidule 74l74

74Les74 ndi chipya chowirikiza cha D flip-flop yopangidwa ndi Statechild Semiconductor.Itha kugwiritsidwa ntchito ngati oscillator, kulembetsa, kulembetsa ku Registern, ndi Courconncy yogawana pafupipafupi.Ili ndi mawonekedwe a kugwiritsa ntchito mphamvu zochepa, phokoso laphokoso kwambiri komanso kuchuluka kwa mphamvu yayikulu, kumapangitsa kugwiritsidwa ntchito kwambiri mu kapangidwe ka digiri ya digito.Chipangizo chilichonse chimakhala ndi zigawo ziwiri zofananira.

M'malo ndi equivilents

• CD74act74

• hef40312b

• mc74f74

• SN74AS74

• 74hct74

• 74lvc20

Kusintha kwa zitsulo ndi ntchito za 74l74

A 74ls74 ali ndi zikhomo 16 ndi mayina awo ndi ntchito zawo zili motere.

Pini 1 (1clr (bar)): Imasinthanso Flop pochotsa kukumbukira kwake

Pini 2 (1d): Chithunzi cholowera cha Flip Flop

Pini 3 (1CLK): Zikhomo izi ziyenera kuperekedwa ndi wotchi ya stall ya Flip.

Pini 4 (1pre (bar)): Chithunzi china cholowera cha Flip Flop

Pini 5 (1Q): pini yotulutsa ya Flip Flip

Pin 6 (1Q '(bar)): pini yotuluka yotuluka

Pini 7 (Vss): yolumikizidwa ndi dongosolo la dongosolo

Pini 8 (2Q '(bar)): pini yotuluka yotulutsa flip flop

Pini 9 (2Q): pini yotuluka ya flip flop

Pini 10 (2pre (bar)): Chithunzi china cholowera cha Flip Flop

PIN

Pini 12 (2d): pini yolowera ya flip flop

Pini 13 (2clr (bar)): Imasanthula Flip Flow podula kukumbukira kwake

Pini 14 (VDD / VCC): Amapanga ma ic ically ndi 5V

Kodi mawonekedwe a 74l74 ndi ati?

• Njira yotsegulayo ndi yowongoka, ndipo kuthamanga kwa yankho lake kumatha.

• Imatengera kasinthidwe kambiri ka kakhosi.

• Mtengo wochepera wa voliyumu mulingo wambiri ndi ma volts awiri.

• 74 All74 amafunikira magetsi okhazikika kuti agwire bwino ntchito ndipo ali ndi zofunika kwambiri pakuyang'anira mphamvu.

Kapangidwe kake ndi mfundo ya 74l74

Flip-flop-flip-flop imakhala ndi ma flops a D flip-b, chilichonse chophatikizira (d ndi koloko) ndi matembenuzidwe awiri (Q ndi / Q).Zovala za D

Mphepete mwa koloko ikafika, mtengo wa chizindikiro cha DOGEAL D idzasungidwa mkati mwa chipata cha chipata chogulitsa chipata cha D.Pamene m'mphepete mwa koloko ikafika, mtengo wosungidwa mkati mwa D Flip-Flip-Flip-Flip-Flip-Flip-Flip-Flip-Flip-Flip-Flip-flop, ndi mtengo wosinthika udzakhala "

Magawo a maluso a 74l74

Chithunzichi pansipa ndicho magawo a SAN74LS74an.

Kodi kugwiritsa ntchito 74ls74 ndi chiyani?

Kodi kugwiritsa ntchito 74ls74 ndi chiyani?

• Chida chotseka

• Wopanga matalala

• Dera la Slubber

• jenereta ya purser

• Sungani chida cholembetsa

• makina okwerera

• Mabwalo a FSK

4LS74 Pulogalamu Yogwiritsa Ntchito

Chithunzichi pamwambapa ndi dera loyang'anira kutali ndi 74ls74.Mphamvu ya maderayi imagwiritsa ntchito mphamvu yocheperako-ikuluikulu yoyambira.Chitetezo chikuyenera kukhala chisamaliro pakupanga kapangidwe kake.Nthawi zambiri, popeza bolodi la madera ali ndi mphamvu ya 220V, tiyenera kuwonetsetsa zolondola.Timatsegula pulagi yamphamvu yanyumba yomwe imafuna kuwongolera kutalikirana mu madontho a CZ, kenako titha kuyamba kugwiritsa ntchito.Chinsinsi chilichonse pamulungu wa kuwongolera kwakutali ali ndi nambala yapadera yotumiza, chifukwa chosiyana kwambiri mukamagwiritsa ntchito kiyi iliyonse.Kuphatikiza apo, batani la batani la batani ndi njira yogwirira ntchito imakhudzanso kuwongolera.

Nthawi zambiri mafunso [FAQ]

1. Kodi IC ya 7474 ndi chiyani?

7474 ndi chipangizo cham'mphepete.Kutulutsa QMakona atatu ang'onoang'ono patchi (CP) yolowera chizindikiro chikuwonetsa kuti chipangizocho ndichabwino.

2. Kodi 74l74 amatani?

The IC 74l74 ndi gulu lokhala ndi ma D.Ikutha kusunga deta mu mawonekedwe a manambala amtundu wa Binary ndipo imabweranso ndi zinthu zomwe zidasungidwa zitha kusinthidwa mukafunikira.

3. Kodi Mungagwiritse Ntchito Bwanji 74l74?

Kugwiritsa ntchito phwip-flop ndikowongoka.Fulunjika IC pogwiritsa ntchito zikhomo za VCC ndi GNT.Monga tanena kale, ntchito iliyonse yopanda pake.Lumikizani zikwangwani za zikhomo 2 ndi 3 kuti muchite zotupa zoyambirira, zomwe zidakwaniritsidwa zikuwonetsa pa zikhomo 5 ndi 6.

4. Kodi chozungulira chikutanthauza chiyani pa 74ls74?

Makona atatu akuwonetsa kuti siginecha siginecha-yoyambitsa.Wozungulira akuwonetsa kuti chizindikirocho ndi chofiyira chochepa (mwachitsanzo., Osweka).A 74LS74 ali ndi chiwotchi yodutsa m'mphepete (chotsika mpaka).

5. Kodi ntchito yopanda pake ya D Flip-FLOP?

Flip-Flip-Flop imagwira mtengo wa D-kulowetsa gawo lotsimikizika la kuzungulira kwa wotchi (monga m'mphepete mwa koloko).Mtengo wogwira uja umakhala wotulutsa Q.Nthawi zina, zotulutsa Q sizisintha.Flip-flip-flop imatha kuonedwa ngati khungu lokumbukira, kutsata zero, kapena mzere wochedwa.