TCA9548APWR TSSOP-24 Electronic Cheebtsam integrated circuit Logic nti 1.65V-5.5V
TCA9548APWR TSSOP-24 Electronic Cheebtsam integrated circuit Logic nti 1.65V-5.5V
Cov yam ntxwv rau TCA9548A
●1-rau-8 Bidirectional txhais cov keyboards
●I2C Bus thiab SMBus sib xws
●Active-low reset input
● Peb qhov chaw nyob tus pins, tso cai txog yim TCA9548A cov khoom siv ntawm I2C tsheb npav
●Channel xaiv los ntawm ib qho I2C Bus, hauv ib qho kev sib xyaw ua ke
● Txhawb nqa nrog txhua txoj kev hloov pauv uas tsis tau xaiv
● Tsawg RONhloov
● Tso cai txhais lus voltage ntawm 1.8-V, 2.5-V, 3.3-V, thiab 5-V tsheb npav
● Tsis muaj teeb meem ntawm lub zog
● Txhawb nqa kub ntxig
● Tsawg standby tam sim no
● Ua haujlwm fais fab-siv voltage ntau ntawm
● 1.65V rau 5.5V
●5-V Tolerant inputs
●0- txog 400-kHz moos zaus
●Latch-up kev ua tau zoo tshaj 100 mA Ib JESD 78, chav II
●ESD Kev Tiv Thaiv tshaj JESD 22
○ ± 2000-V Tib neeg lub cev qauv (A114-A)
○ 200-V Tshuab qauv (A115-A)
○ ± 1000-V Charged-device qauv (C101)
Kev piav qhia rau TCA9548A
Lub TCA9548A ntaus ntawv muaj yim lub tshuab txhais lus bidirectional uas tuaj yeem tswj tau los ntawm I2C tsheb npav.SCL / SDA cov kiv cua ntws tawm mus rau yim tus khub hauv qab, lossis cov channel.Txhua tus neeg SCn / SDn channel lossis kev sib txuas ntawm cov channel tuaj yeem xaiv tau, txiav txim siab los ntawm cov ntsiab lus ntawm cov programmable tswj kev sau npe.Cov downstreamchannels no tuaj yeem siv los daws kuv2C qhev hais txog kev tsis sib haum xeeb.Piv txwv li, yog hais tias yim zoo tib yam digital kub sensors xav tau nyob rau hauv daim ntawv thov, ib tug sensor tuaj yeem txuas ntawm txhua channel: 0-7.
Tus tswv system tuaj yeem rov pib dua TCA9548A thaum lub sijhawm tawm lossis lwm yam kev ua haujlwm tsis raug los ntawm kev lees paub qhov qis hauv RESET cov tswv yim.Ib yam li ntawd, lub hwj chim-onreset deselects tag nrho cov channel thiab pib qhov I2C/SMBus statemachine.Kev lees paub RESET ua rau tib qhov rov pib dua thiab pib pib tshwm sim yam tsis muaj hluav taws xob qis.Qhov no tso cai rov qab yuav tsum yog ib qho ntawm downstreamI2Cov tsheb npav C tau daig hauv lub xeev qis.
Cov rooj vag dhau ntawm cov keyboards tau tsim ua kom VCC tus pin tuaj yeem siv los txwv qhov siab tshaj plaws voltage, uas dhau los ntawm TCA9548A.Kev txwv qhov siab tshaj plaws voltage tso cai rau kev siv cov tsheb npav sib txawv ntawm txhua khub, kom 1.8-V, 2.5-V lossis 3.3-V qhov chaw tuaj yeem sib txuas lus nrog 5-V qhov chaw, tsis muaj kev tiv thaiv ntxiv.Sab nraud pullup resistors rub lub npav mus txog qhov xav tau qib voltage rau txhua channel.Txhua tus pins I / O yog 5-V kam rau ua.
1. Leej twg yog cov neeg ua haujlwm hauv koj lub tuam tsev R & D?Koj qhov kev tsim nyog yog dab tsi?
-R & D Tus Thawj Coj: tsim lub tuam txhab cov phiaj xwm mus ntev R & D thiab tuav cov kev taw qhia ntawm kev tshawb fawb thiab kev loj hlob;Qhia thiab saib xyuas r&d department los siv lub tuam txhab r&d lub tswv yim thiab txhua xyoo R&D txoj kev npaj;Tswj kev txhim kho cov khoom lag luam thiab kho cov phiaj xwm;Teem cov khoom zoo tshaj plaws tshawb fawb thiab txhim kho pab pawg, tshawb xyuas thiab kev cob qhia txog cov neeg ua haujlwm.
R & D Tus Thawj Coj: ua cov khoom tshiab R & D txoj kev npaj thiab ua kom pom qhov ua tau ntawm txoj kev npaj;Saib xyuas thiab tswj qhov kev nce qib thiab ua haujlwm zoo ntawm r&d;Tshawb nrhiav kev tsim khoom tshiab thiab nthuav tawm cov kev daws teeb meem zoo raws li cov neeg siv khoom xav tau hauv ntau qhov chaw
R&d cov neeg ua haujlwm: sau thiab txheeb xyuas cov ntaub ntawv tseem ceeb;Computer programming;Ua cov kev sim, ntsuas thiab ntsuas;Npaj cov ntaub ntawv thiab khoom siv rau kev sim, kev sim thiab tshuaj xyuas;Sau cov ntaub ntawv ntsuas, ua cov lej thiab npaj cov kab kos;Ua cov ntawv tshawb fawb
2. Koj cov khoom tshawb fawb thiab kev tsim kho lub tswv yim yog dab tsi?
-Txoj kev xav thiab xaiv cov khoom lag luam lub tswv yim thiab kev ntsuam xyuas cov khoom txhais thiab cov phiaj xwm tsim thiab kev tsim cov khoom kuaj thiab kev siv tau tso rau kev lag luam
