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Infineon Technologies PEF 80912 H V1.4
- Part No.:
- PEF 80912 H V1.4
- Manufacturer:
- Infineon Technologies
- Category:
- Telecom
- Package:
- 44-QFP
- Datasheet:
-
PEF 80912 H V1.4.pdf
- Description:
- IC TELECOM INTERFACE MQFP-44
- Quantity:
- Payment:
- Shipping:
Inventory:3,106
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Product details
Overview
PEF 80912 H V1.4 from Infineon Technologies is a second-generation modular ISDN Network Terminator (NT) IC implementing Q-SMINT®I 2B1Q line coding for U-interface physical layer compliance, featuring integrated U-transceiver and S-transceiver functions, dual IOM®-2 interface support, and programmable maintenance channel handling - deployed in ISDN NT equipment for European PSTN access.
For engineers reviewing the PEF 80912 H V1.4 datasheet, PEF 80912 H V1.4 pinout, PEF 80912 H V1.4 application, or PEF 80912 H V1.4 equivalent, this device requires attention to U-interface timing thresholds (e.g., ±2.92 V POR detection), 4.2 V absolute max VDD, 2B1Q frame synchronization, C/I command protocol handling (e.g., DR, AIL), and register-level control of LT-S/NT state machines.
Technical Context
The PEF 80912 H V1.4 implements full Layer 1 ISDN NT functionality per IEC-Q/NTC-Q standards, with independent U-transceiver (2B1Q) and S-transceiver (4B3T) blocks, each governed by dedicated state machines (LT-S mode for S-interface, NT mode for U-interface). It supports both serial (SCI) and parallel microcontroller interfaces for configuration and monitoring.
Its IOM®-2 interface provides time-slot multiplexed data transfer between TE devices and the NT core, with programmable TIC, A/B, S/G, and BAC time slots; the U-transceiver includes built-in EOC processor, M4/M5/M6 overhead bit reporting, FEBE/CRC error detection, and near/far-end block error counters for line diagnostics.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDD Supply Range | 3.0 V to 3.6 V - ensures compatibility with 3.3 V system rails and stable operation under industrial voltage tolerances. |
| Absolute Max VDD | 4.2 V - defines safe overvoltage limit during power-up transients or supply coupling events. |
| POR Detection Threshold | 2.92 V (rising), with 30–90 mV hysteresis - guarantees reliable reset assertion across temperature and process variation. |
| U-Interface Line Coding | 2B1Q - enables full-duplex 144 kbps (2 × 64 kbps + 16 kbps) transmission over single twisted pair per ETSI TS 101 524. |
| S-Interface Line Coding | 4B3T - supports S0 bus operation at 192 kbps with DC balance and clock recovery capability. |
| ESD Rating | HBM: ±2 kV (per JESD22-A114B), CDM: ±500 V - meets telecom equipment robustness requirements for field deployment. |
| Microcontroller Interface | SCI (3-wire serial) and parallel 8-bit - allows flexible host integration with low pin count or high-speed register access. |
Pinout & Package
PEF 80912 H V1.4 is housed in a 128-pin LQFP package (20 mm × 20 mm, 0.5 mm pitch), thermally enhanced for sustained ISDN line driver operation. Pin functions are defined per Infineon DS 1 (March 2001), with dedicated U- and S-transceiver analog I/O, IOM®-2 data/control lines, SCI/parallel interface signals, and power/ground distribution optimized for mixed-signal noise isolation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| U+ / U− | Differential U-interface transmitter output | Drives 2B1Q signal onto metallic loop; requires external hybrid and line termination per ETSI. |
| S+ / S− | Differential S-interface receiver input | Accepts 4B3T signal from TE; internal termination enables direct connection to S0 bus. |
| SCI_CLK / SCI_DATA / SCI_EN | Serial Control Interface signals | Enable register read/write via 3-wire SPI-like protocol; supports daisy-chaining in multi-NT systems. |
| AD0–AD7 | Parallel address/data bus | Time-multiplexed 8-bit interface for fast register access; compatible with standard 8051/8086-style controllers. |
| RESET_N | Active-low asynchronous reset input | Forces hardware reset of all internal state machines and registers; synchronous release required for NT activation. |
| VDD / VSS | Power supply and ground | Separate analog/digital VDD pins (VDDA/VDDD) and dedicated AGND/DGND planes reduce crosstalk in mixed-signal operation. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated U- and S-transceivers | Eliminates need for discrete line drivers/receivers; reduces BOM count and PCB area in compact NT designs. |
| Programmable maintenance channel (M-bit) | Enables real-time line diagnostics (e.g., loop status, signal quality) without disrupting user traffic on U-interface. |
| IOM®-2 interface with TIC arbitration | Supports up to 8 TE devices on shared S0 bus with deterministic time-slot allocation and collision-free D-channel access. |
| EOC processor with command set (DR, AIL, etc.) | Offloads µC from low-level U-interface signaling tasks; handles activation/deactivation sequences autonomously. |
| U-transceiver interrupt structure with maskable sources | Allows selective response to critical events (e.g., LOS, AIS, CRC errors) while suppressing non-urgent status updates. |
Applications
| ISDN Network Terminator (NT1) | Multi-TE Residential Gateway |
|---|---|
Use Scenario: Standalone NT unit connecting PSTN U-interface to internal S0 bus in residential or SOHO environments. IC Role / Device Role / Timing Role: Full Layer 1 NT controller managing U-line activation, S0 bus arbitration, and D-channel framing per ETSI EN 300 125. Use Value: Enables plug-and-play ISDN service delivery with automatic line testing, remote maintenance via M-bits, and interoperability with legacy TE devices. |
Use Scenario: Integrated NT inside a voice/data gateway supporting multiple ISDN terminals (phones, fax, PC adapters). IC Role / Device Role / Timing Role: Central timing and switching hub coordinating TIC slot assignment, D-channel arbitration, and S0 bus contention resolution. Use Value: Supports concurrent TE connections without external bus controllers; reduces latency in D-channel signaling via hardware-accelerated arbitration logic. |
| Industrial ISDN Remote I/O | ISDN-Based SCADA Terminal |
Use Scenario: Ruggedized NT module in remote telemetry units transmitting sensor data over ISDN leased lines. IC Role / Device Role / Timing Role: Reliable U-interface PHY with built-in FEBE/CRC monitoring and block error counters for link health assessment. Use Value: Provides deterministic error reporting (near/far-end BER) and maintenance channel access for predictive maintenance without host µC intervention. |
Use Scenario: Field-deployed SCADA terminal using ISDN for secure, low-latency polling of RTUs over long loops. IC Role / Device Role / Timing Role: NT-mode state machine execution with precise 2B1Q frame alignment and EOC-driven activation sequencing. Use Value: Ensures guaranteed activation within 15 s per ETSI, with analog loopback (No. 3) support for on-site line integrity verification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ISDN NT applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PEF 82913 | Extended U-transceiver performance: improved S/N+D ratio and refined threshold levels; identical pinout and register map. | Preferred for new deployments requiring higher noise immunity on long or degraded U-loops. | Select when U-loop length exceeds 3 km or ambient noise exceeds −40 dBm. |
| PEF 82912 | Baseline version with earlier revision of U-transceiver characteristics; same functional architecture and IOM®-2 interface. | Suitable for cost-sensitive designs where legacy qualification suffices and loop conditions are nominal. | Choose only if existing design validation covers PEF 82912 and no extended U-performance is needed. |
Compared with PEF 80912 H V1.4, PEF 82913 offers measurable U-interface SNR improvement for marginal loops, while PEF 82912 retains full software compatibility but lacks updated POR hysteresis and ESD specs - making the V1.4 variant optimal for new designs balancing robustness and qualification continuity.
Availability
PEF 80912 H V1.4 is available at Aetrix Electronics and suitable for ISDN NT1 equipment, multi-TE residential gateways, industrial remote I/O modules, and SCADA terminal designs requiring stable component supply and long-term lifecycle support.
Supply support for PEF 80912 H V1.4 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 AG is a German semiconductor manufacturer specializing in power management, automotive, industrial, and wired communications ICs, with global R&D and manufacturing infrastructure.
The PEF 80912 H V1.4 belongs to Infineon's Q-SMINT®I product line, designed specifically for intelligent ISDN Network Terminators targeting ETSI-compliant European telecommunications infrastructure.
FAQ
What is the function of the M-bit maintenance channel in PEF 80912 H V1.4?
The M-bit maintenance channel provides out-of-band diagnostic access to U-interface line status without interrupting B- or D-channel traffic. It reports real-time parameters including loss-of-signal (LOS), alarm indication signal (AIS), and loop status via dedicated M4/M5/M6 bits, accessible through µC register reads or EOC commands - enabling remote line testing and fault localization in deployed NT units.
Does PEF 80912 H V1.4 support both NT and TE modes?
No - PEF 80912 H V1.4 is strictly an ISDN Network Terminator (NT) device. It implements NT-mode state machines for U-interface activation and S-interface termination, and does not support TE-mode functions such as S0 bus driving or TE-specific D-channel protocols. Its S-transceiver operates only as an S-interface receiver and concentrator for attached TE devices.
How does the IOM®-2 interface handle D-channel arbitration among multiple TE devices?
The IOM®-2 interface uses hardware-based D-channel arbitration logic that grants time-slot access based on priority encoding and stop/go bit signaling. Each TE device asserts its request via dedicated IOM®-2 control lines, and the PEF 80912 resolves contention using a fixed-priority scheme with configurable timeout, ensuring deterministic D-channel frame delivery without µC intervention or software scheduling overhead.
What are the key differences between PEF 80912 H V1.4 and PEF 82912?
PEF 80912 H V1.4 reflects the March 2001 DS 1 revision aligned with PEF 82912/82913 documentation, incorporating clarified register definitions (e.g., CIX1.CODX1 bit mapping), updated U-transceiver timing (enhanced SCI/parallel AC specs), revised POR hysteresis (30–90 mV), and corrected reset values (e.g., MASKU = FFH). It is functionally identical to PEF 82912 but represents the finalized, production-ready version of that silicon variant.
PEF 80912 H V1.4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- Q-SMINT®
- Package/Case:
- 44-QFP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Second Generation Modular
- Interface:
- ISDN
- Number of Circuits:
- -
- Voltage - Supply:
- -
- Current - Supply:
- -
- Power (Watts):
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- P-MQFP-44
PEF 80912 H V1.4 FAQ
1.How can I place an order for PEF 80912 H V1.4 through Aetrix?
Please submit a Request for Quotation (RFQ) for PEF 80912 H V1.4 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for PEF 80912 H V1.4 reliable?
The price and inventory of PEF 80912 H V1.4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PEF 80912 H V1.4 is usually 5 days.
3.What payment methods are accepted for PEF 80912 H V1.4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PEF 80912 H V1.4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PEF 80912 H V1.4?
PEF 80912 H V1.4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PEF 80912 H V1.4 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for PEF 80912 H V1.4?
For technical support, including PEF 80912 H V1.4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PEF 80912 H V1.4 requirements.
6.How does Aetrix verify that PEF 80912 H V1.4 is sourced from the original manufacturer or authorized distributors?
All PEF 80912 H V1.4 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that PEF 80912 H V1.4 meets industry standards.
7.What is the process for return or replacement of PEF 80912 H V1.4?
All PEF 80912 H V1.4 units undergo pre-shipment inspection (PSI). If there is an issue with PEF 80912 H V1.4, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The PEF 80912 H V1.4 part is unused and in its original packaging.
Return procedure for PEF 80912 H V1.4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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