PCA9554D,118 I/O Expander 8 I²C, SMBus 400 kHz 16-SO

Sharaxaada

PCA9554 iyo PCA9554A waa aaladaha CMOS 16-pin ah oo bixiya 8-bit oo isku mid ah Wax-soo-gelinta/Wax-soo-saarka (GPIO) ee isbarbar-dhigga codsiyada I2C-bas/SMBus waxaana loo sameeyay si loo wanaajiyo qoyska Semiconductors ee NXP ee I2C-baska I/O ballaarinta.Hagaajinta waxaa ka mid ah awoodda wadista sare, dulqaadka 5 VI/O, sahayda hoose ee hadda jirta, qaabaynta I/O shaqsiyeed, inta jeer ee saacada 400 kHz, iyo baakado yaryar.Balaadhinta I/O waxay bixisaa xal fudud marka I/O dheeraad ah loo baahdo dareemada korantada ACPI, dareemayaasha, badhamada riixida, LED-yada, taageerayaasha, iyo wixii la mid ah.PCA9554/PCA9554A waxa uu ka kooban yahay 8-bit diiwaanka qaabaynta (doorashada wax soo gal ama soo saarida);Diiwaanka 8-bit Port Input, 8-bit Output Port diiwaanka iyo 8-bit Polarity Inversion diiwaanka (HIGH firfircoon ama firfircoon LOW).Master-ka nidaamka wuxuu awood u siin karaa I/Os-ka mid ahaan wax-soo-gelinta ama wax-soo-saarka isagoo u qoraya qaybta qaabeynta I/O.Xogta wax-soo-gelin kasta ama wax-soo-saar kasta waxa lagu hayaa diiwaanka Dekedda Wax-gelinta ama wax-soo-saarka ee u dhigma.Kala duwanaanta diiwaanka akhrinta waxaa lagu rogi karaa diiwaanka rogashada Polarity.Dhammaan diiwaanada waxaa akhrin kara macalinka nidaamka.In kasta oo ciwaanka pin-to-pin iyo I2C-baska uu ku habboon yahay taxanaha PCF8574, isbeddellada softiweerka ayaa loo baahan yahay kobcinta awgeed waxaana looga hadlay Codsiga Xusuus-qorka AN469.PCA9554/PCA9554A wax soo saarka hakadka furan waxa la hawlgeliyaa marka gobol kasta oo wax gelin ahi uu ka duwan yahay gobolka diiwangelinta Dekedda Input ee u dhigma oo loo isticmaalo in lagu tilmaamo sayidka nidaamka in wax gelintu is bedeshay.Dib-u-dejinta korontadu waxay dejisaa diiwaannada qiyamkooda caadiga ah waxayna bilawday mashiinka gobolka ee qalabka.Saddex biinanka hardware (A0, A1, A2) kala duwan yihiin I2C-baska ciwaanka go'an oo u ogolaanaya ilaa siddeed qalab in ay wadaagaan I2C-bas / SMBus la mid ah.PCA9554A waxay la mid tahay PCA9554 marka laga reebo in ciwaanka I2C-baska go'an uu ka duwan yahay taas oo u ogolaanaysa ilaa lix iyo toban ka mid ah qalabkan (sideed ka mid ah) isla I2C-bas/SMBus.