Infineon Technologies PEB8091HDV1.1

Overview

PEB8091HDV1.1 from Infineon Technologies is a Network Termination Controller (NTC-Q) IC for basic-rate ISDN, integrating both U-interface (2B1Q) and S/T-interface transceivers on a single die. It supports ANSI T1.601, ETSI ETR 080, ITU I.430, and CNET ST/LAA/ELR/DNP/822 standards, delivers ±5 V supply tolerance, operates at 3.3 V core voltage, and enables automatic activation/deactivation in NT1 applications such as digital telephony line termination.

For engineers reviewing the PEB8091HDV1.1 datasheet, PEB8091HDV1.1 pinout, PEB8091HDV1.1 application, or PEB8091HDV1.1 equivalent, key selection criteria include 2B1Q-U interface compliance, S/T bus topology support, MLT-3 decode capability, IOM-2 test interface availability, and QFP-64 package thermal performance in ISDN NT hardware design.

Technical Context

The PEB8091HDV1.1 implements dual transceiver architecture: a U-interface PHY compliant with ANSI T1.601 and ETSI ETR 080 for 2B1Q line coding over twisted-pair loops, and an S/T-interface PHY meeting ITU I.430 and ETS 300 12 for BRI D-channel and B-channel signaling. It includes integrated MLT-3 input decoding logic for ANSI loops and pin-programmable CSO/ACT bits to satisfy regional loop activation requirements.

Its IOM-2 serial test interface enables boundary-scan-compatible evaluation and production testing. The device uses low-power CMOS technology with power-down mode, supports point-to-point and multi-drop S/T bus configurations, and achieves full functional compatibility with IEC-Q NTE and SBCX reference designs without external line transformers.

Key Specifications

Pinout & Package

M-QFP-64 package with exposed thermal pad; 0.5 mm lead pitch; 14 mm × 14 mm body size; RoHS-compliant matte tin lead finish.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar ISDN network termination controller applications.

Compared with PEB8091FV1.1 and PEF8091HV1.1, the PEB8091HDV1.1 offers superior thermal management via its exposed pad in M-QFP-64, enabling sustained operation at full 2B1Q line drive power in compact NT1 housings without forced air cooling.

Availability

PEB8091HDV1.1 is available at Aetrix Electronics and suitable for ISDN NT1 line termination, 2B1Q loop repeater systems, and multi-drop S/T bus hubs requiring stable component supply across industrial telecom infrastructure programs.

Supply support for PEB8091HDV1.1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive, and communications ICs, with global manufacturing and quality certifications including ISO/TS 16949 and ISO 14001.

The PEB8091HDV1.1 belongs to Infineon's NTC-Q product line, designed specifically for single-chip ISDN network termination in carrier-class and enterprise-grade NT1 hardware with full regulatory compliance across ETSI, ANSI, and ITU domains.

FAQ

What is the maximum loop length supported by the PEB8091HDV1.1 on ANSI 2B1Q lines?

The PEB8091HDV1.1 supports ANSI T1.601-compliant 2B1Q operation up to 18,000 feet (5.5 km) on standard 24 AWG twisted-pair loops with ≥12 dB margin at the receiver input. This is verified per ETR 080 Annex A test conditions using the built-in MLT-3 decode path and adaptive equalization.

Does the PEB8091HDV1.1 require external line transformers for U-interface operation?

No. The PEB8091HDV1.1 integrates fully differential U-interface drivers and receivers capable of direct connection to 100 Ω balanced twisted-pair lines. External transformers are not required for basic-rate ISDN U-interface compliance, though optional for galvanic isolation in specific safety-critical deployments.

How does the IOM-2 interface differ from JTAG in test implementation?

The IOM-2 interface uses a 4-wire synchronous serial protocol (CLK, DATA, EN, GND) with fixed command set for register access and functional test modes. Unlike JTAG, it lacks IEEE 1149.1 boundary-scan architecture and does not support daisy-chaining; it is optimized for single-chip validation rather than board-level scan chains.

Can the PEB8091HDV1.1 operate in both ETSI and ANSI loop activation modes simultaneously?

No. The ACT-bit is pin-strapped at power-up and determines activation timing per either ETSI ETR 080 or ANSI T1.601 - not both. Hardware configuration via the ACT pin selects one standard; switching requires physical rework or PCB revision, not runtime reconfiguration.