What this EPIC series time slot assigner does on the board
The Infineon EPIC series PEB2054NV1.0 is a single-circuit time slot assigner — a serial controller that maps PCM time slots in ISDN and digital telephony backplanes. It runs from a single 5V supply and handles the serial interface framing that keeps voice or data channels aligned across the bus. This is the part that sits between the line interface and the switching fabric, assigning which 64 kbps time slot carries which channel. If you are maintaining or building a legacy PCM highway system, this is the slot-assignment logic you need.
5V supply rail and single-circuit serial control
The PEB2054NV1.0 operates on a single 5V supply — no separate core or I/O voltage. That simplifies the power tree if the rest of the backplane logic is also 5V. The single-circuit count means one time-slot assigner per device; a multi-span system stacks one per PCM highway. The serial interface handles the control and data flow for the time-slot assignment. No parallel address/data bus to route — just serial lines to the host controller and the PCM highway.
Tube packaging — store the reels dry
This variant ships in Tube, not Tape & Reel. That means no moisture-barrier bag to worry about for short-term storage — but if you are transferring to pick-and-place feeders, plan for tube-to-tape conversion or hand-placing for prototype runs.
No last-time-buy notice, no end-of-life window to rush. For the storeroom, that means you can order this as a regular line item without hoarding a multi-year buffer. Still worth checking PCN alerts quarterly if the EPIC series sees a portfolio review.
Cross-reference: PEB2054-N-V1.0 for dual-sourcing
If your BOM already qualifies the -N-V1.0 variant, the NV1.0 is a drop-in functional match for the silicon; the only difference is the shipping medium. That gives you a dual-sourcing path for supply resilience without requalifying the board.