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Q67100-H6390 Datasheet(PDF) 7 Page - Siemens Semiconductor Group |
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Q67100-H6390 Datasheet(HTML) 7 Page - Siemens Semiconductor Group |
7 / 240 page Semiconductor Group 7 General Information Introduction The PSB 2186 ISAC®-S TE implements the four-wire S/T interface used to link voice/data terminals to an ISDN. The PSB 2186 combines the functions of the S-Bus Interface Circuit (SBC: PEB 2080) and the ISDN Communications Controller (ICC: PEB 2070) on one chip. The component switches B- and D-channels between the S/T and the ISDN Oriented Modular (IOM®) interfaces, the latter being a standard backplane interface for the ISDN-basic access. The device provides all electrical and logical functions of the S/T interface, such as: activation/ deactivation, mode dependent timing recovery and D-channel access and priority control. The HDLC packets of the ISDN D-channel are handled by the ISAC-S which interfaces them to the associated microcontroller. In one of its operating modes the device offers high level support of layer-2 functions of the LAPD protocol. The ISAC-S is a CMOS device, available in a P-DIP-40, P-LCC-44, P-MQFP-64 package. It operates from a single + 5 V supply and features a power-down state with very low power consumption. |
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