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YTD436 Datasheet(PDF) 1 Page - YAMAHA CORPORATION |
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YTD436 Datasheet(HTML) 1 Page - YAMAHA CORPORATION |
1 / 14 page YTD436 is a high-performance communication LSI for the ISDN BRI user-network interface function (digital four-wire time-division full-duplex operation), supporting D channel layer 1 and layer 2 functions in one 100-pin SQFP chip. YTD436 supports layer 1 (physical layer) control function conforming to ITU-T Recommendation I.430 and fully supports layer 2 (LAPD protocol) function conforming to ITU-T Recommendations Q.920 and Q.921. ETSI (European Telecommunication Standards Institute) and North American standard operating modes are also supported. In addition, YTD436 includes layer 3 processor interface function which operate in DMA transfer mode or I/O transfer mode. This gives a great advantage for mounting and functional designing of both “active” (CPU on board) terminal equipment and “passive” (no CPU on board) PC cards. The layer 1 function has a built-in S/T reference point analog driver/receiver to support the S/T reference point interface. In order to support the U interface, YTD436 also has a I.430 TTL interface (no built-in analog driver/receiver) suitable for connecting to an NT1 chip or a DSU module. YTD436 ISTC ISDN BRI controller with S/T ref. pt. analog D/R YTD436 CATALOG CATALOG No.:4TD436A41 2005.1 |
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