ISDN access controller — parametric fit for the BOM
The Infineon PSB2186FV1.1D is an ISAC-S TE ISDN access controller in the ISDN series, designed for the basic-rate ISDN terminal interface. The single-circuit device communicates over a 4-wire IOM-2 interface, the standard digital link between the ISDN S/T transceiver and the layer-2 controller.
Supplied in a 64-lead LQFP (P-TQFP-64-1) with 0.50 mm pitch, the package footprint is a standard 10×10 mm body. Surface-mount assembly follows JEDEC MSL-3 or equivalent moisture sensitivity — a bake step before reflow is needed if the sealed moisture-barrier bag has been open longer than the floor-life rating. The Bulk packaging quantity is not a reel or tray count — order the exact BOM quantity and the lot will be supplied loose in anti-static tubes or equivalent. No minimum order multiple beyond the RFQ quantity.
Infineon lists the PSB2186FV1.1D as Active. No end-of-life notice or last-time-buy window is published. No pin-compatible second source or direct successor is recorded on this line. The IOM-2 interface and 64-LQFP footprint are specific to this ISDN generation — a BOM substitution would require a full qualification cycle on a different controller.