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Infineon Technologies PEF 82912 F V1.4
- Part No.:
- PEF 82912 F V1.4
- Manufacturer:
- Infineon Technologies
- Category:
- Telecom
- Package:
- 64-LQFP
- Datasheet:
-
PEF 82912 F V1.4.pdf
- Description:
- IC TELECOM INTERFACE TQFP-64
- Quantity:
- Payment:
- Shipping:
Inventory:2,225
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Product details
Overview
PEF 82912 F V1.4 from Infineon Technologies is a second-generation modular ISDN Network Termination (NT) IC implementing Q-SMINT®I 2B1Q line coding for U-interface physical layer compliance, supporting full NT state machine operation per IEC-Q/NTC-Q standards, with integrated U-transceiver, S-transceiver, IOM®-2 interface, and microcontroller control logic - used in ISDN terminal adapters and intelligent NT boxes for European PSTN access.
For engineers reviewing the PEF 82912 F V1.4 datasheet, PEF 82912 F V1.4 pinout, PEF 82912 F V1.4 application, or PEF 82912 F V1.4 equivalent, key selection criteria include U-interface 2B1Q compliance, IOM®-2 timing compatibility, integrated maintenance channel support, and dual transceiver (U + S) co-integration for single-chip NT implementation.
Technical Context
The PEF 82912 implements a fully autonomous NT state machine with hardware-accelerated 2B1Q encoding/decoding, EOC (Embedded Operations Channel) processing, and M-bit (M4/M5/M6) overhead handling per ITU-T I.430/I.431. It supports both analog loopback (U-Transceiver No. 3) and digital loopbacks (Loopback No. 2, local LOOP register).
Its IOM®-2 interface provides time-slot–based data transfer between µC and S0 bus with programmable TIC, A/B, S/G, and BAC slots; the SCI serial interface enables register access across address range 20H–7DH using command sequences 43H, 41H, and 49H.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| U-Interface Standard | Complies with ITU-T I.430/I.431 for 2B1Q line coding at 160 kbit/s - enables direct connection to public ISDN U-loop without external line driver. |
| S-Interface Support | Supports S0 bus (4-wire, 192 kbit/s) with 4B3T coding - interfaces directly to TE devices (e.g., ISDN phones, routers) without external transceiver. |
| Microcontroller Interface | SCI serial (3-wire) and parallel µC modes - allows flexible host integration with minimal pin count or high-speed register access. |
| Supply Voltage | VDD = 3.3 V ± 5 % (max 4.2 V absolute) - requires stable low-noise LDO regulation for U-transceiver analog section integrity. |
| ESD Rating | HBM: ±2 kV per EIA/JESD22-A114B - meets industrial-grade robustness for telecom equipment mounting environments. |
| Operating Temperature | −40 °C to +85 °C - qualified for uncontrolled indoor telecom cabinet deployment without active cooling. |
| Reset Threshold Hysteresis | 30 mV to 90 mV, detection threshold 2.92 V - ensures reliable power-on reset under brown-out conditions on VDD rail. |
Pinout & Package
PEF 82912 F V1.4 is housed in a 128-pin LQFP (20 × 20 mm, 0.4 mm pitch) package with thermal pad. Pin functions are defined per DS1 March 2001, including dedicated U-transceiver analog I/O (U+, U−), S-transceiver differential pairs (S+, S−), IOM®-2 time-slot signals (TIC, A/B, S/G), SCI lines (SCLK, SDATA, SEN), and parallel µC bus (AD0–AD7, RD, WR, CS).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| U+, U− | U-interface differential analog output | Direct 2B1Q line driver outputs - require external 135 Ω termination and hybrid circuitry for echo cancellation. |
| S+, S− | S-interface differential analog input/output | 4B3T-coded S0 bus interface - connects to TE-side transformer or line driver without level-shifting. |
| TIC, A/B, S/G, BAC | IOM®-2 time-slot control signals | Programmable slot assignment enables dynamic allocation of B-channel, D-channel, and maintenance data paths to µC. |
| SCLK, SDATA, SEN | Serial Control Interface (SCI) | 3-wire SPI-compatible interface for configuration and status readback - reduces µC pin count vs. parallel mode. |
| AD0–AD7, RD, WR, CS | Parallel microcontroller interface | 8-bit multiplexed address/data bus with standard control strobes - supports 8051, 68K, and ARM-based hosts. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated U + S Transceivers | Single-chip NT solution eliminates need for discrete line drivers, transformers, and clock recovery ICs - reduces BOM cost and PCB area by >35%. |
| IEC-Q/NTC-Q Compliant NT State Machine | Hardware-implemented state transitions (e.g., ACTIVATION, DEACTIVATION, FAULT) ensure deterministic timing and regulatory conformance without µC firmware overhead. |
| Embedded Operations Channel (EOC) | Full EOC processor handles maintenance commands (e.g., DR, AIL) and reports line status via C/I registers - enables remote diagnostics and provisioning. |
| M-Bit Overhead Handling (M4/M5/M6) | Dedicated logic captures and routes M-bit status (e.g., loss of signal, CRC errors) to µC via interrupt or polling - simplifies Layer 1 monitoring stack. |
| IOM®-2 Monitor Channel | Separate monitor path with handshake protocol and timeout logic - allows concurrent debug traffic without disrupting primary data flow on TIC/A/B slots. |
Applications
| ISDN Terminal Adapter | Intelligent NT Box |
|---|---|
|
Use Scenario: Standalone device connecting analog PBX or VoIP gateway to ISDN U-loop in SME offices. IC Role / Device Role / Timing Role: Full Network Termination controller managing U-interface activation, S0 bus arbitration, and D-channel signaling. Use Value: Eliminates external transceivers and state-machine FPGA, reducing bill-of-materials while maintaining IEC-Q certification out-of-box. |
Use Scenario: Carrier-deployed NT unit providing multi-TE S0 ports with remote management via EOC. IC Role / Device Role / Timing Role: Central U-transceiver and S-transceiver hub with embedded maintenance channel and fault reporting. Use Value: Enables over-the-air diagnostics and firmware-triggered loopbacks (e.g., Loopback No. 2) without field technician dispatch. |
| ISDN Router Front-End | Legacy Telecom Gateway |
|
Use Scenario: Embedded ISDN WAN interface in industrial routers requiring deterministic Layer 1 handshaking. IC Role / Device Role / Timing Role: Physical layer controller synchronizing µC packet engine with U-interface frame boundaries and D-channel bit timing. Use Value: Hardware-accelerated TIC slot mapping offloads µC from real-time bit-level scheduling - improves routing throughput stability. |
Use Scenario: Retrofit module converting legacy analog telephony systems to ISDN trunking. IC Role / Device Role / Timing Role: U-interface line coder/decoder bridging PSTN infrastructure to digital S0 domain with galvanic isolation support. Use Value: Maintains backward compatibility with existing transformer-based hybrid circuits while adding EOC-based line health telemetry. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ISDN NT controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PEF 82913 | Extended U-transceiver performance: higher S/N+D ratio and refined threshold levels - specified in same DS1 revision but not pin-compatible due to internal register map changes. | Targeted at new designs requiring improved noise immunity on long U-loops (>3 km) where PEF 82912 exhibits marginal margin. | Select PEF 82913 only when U-loop length or crosstalk environment exceeds PEF 82912's validated spec limits - no benefit for typical <2 km deployments. |
| Siemens SAB 82532 | Legacy 80C51-based NT controller with external U-transceiver requirement - lacks integrated 2B1Q encoder, EOC processor, and IOM®-2 interface. | Used in early 1990s NT designs; requires additional ASIC or discrete logic for full NT functionality. | Only viable for legacy repair or backward-compatible redesigns - not recommended for new designs due to obsolescence and higher system complexity. |
Compared with PEF 82913, the PEF 82912 offers lower-cost U-interface implementation with sufficient margin for standard loop lengths, while the SAB 82532 demands external components and firmware effort to achieve equivalent NT behavior - making PEF 82912 the optimal balance of integration, cost, and time-to-market for mid-volume ISDN equipment.
Availability
PEF 82912 F V1.4 is available at Aetrix Electronics and suitable for ISDN terminal adapters, intelligent NT boxes, and industrial ISDN routers requiring stable component supply and long-lifecycle support in telecom infrastructure.
Supply support for PEF 82912 F 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, and wired communications ICs, with headquarters in Munich and global design and manufacturing operations.
The PEF 82912 belongs to Infineon's Q-SMINT®I product line - engineered specifically for single-chip ISDN Network Termination in European and global PSTN access equipment, emphasizing regulatory compliance, analog-digital co-design, and field-deployable reliability.
FAQ
What is the maximum supported U-loop length for PEF 82912 F V1.4?
The PEF 82912 F V1.4 is characterized for reliable 2B1Q operation up to 3.5 km on standard 0.4 mm copper loop (135 Ω characteristic impedance), based on measured S/N+D performance in Table 38 of DS1 March 2001. Performance beyond this length depends on cable quality, loading coils, and noise environment - validation testing is required for >3 km deployments.
Does PEF 82912 F V1.4 support both point-to-point and point-to-multipoint S0 configurations?
Yes - the S-transceiver supports both configurations via IOM®-2 time-slot assignment and D-channel arbitration logic. Point-to-multipoint requires external passive splitters and adheres to EN 300 126-1 S0 electrical specifications; the IC handles all protocol-level arbitration and collision resolution per ITU-T I.430 Annex A.
Can the U-transceiver be disabled independently while keeping the S-transceiver active?
Yes - the U-transceiver can be placed into low-power standby via C/I command RESET or by clearing UEN bit in MODEH register, while the S-transceiver remains fully operational for TE-side communication. This enables power-gating during idle U-loop periods without disrupting S0-connected devices.
Is the PEF 82912 F V1.4 RoHS-compliant?
No - the PEF 82912 F V1.4 was manufactured prior to RoHS Directive 2002/95/EC enforcement and contains lead in its solder finish and die attach. It is classified as non-RoHS, intended for legacy repair and industrial applications exempt from RoHS compliance requirements per Annex II of Directive 2011/65/EU.
PEF 82912 F V1.4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- Q-SMINT®
- Package/Case:
- 64-LQFP
- Packaging:
- Tray
- 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:
- PG-TQFP-64
PEF 82912 F V1.4 FAQ
1.How can I place an order for PEF 82912 F V1.4 through Aetrix?
Please submit a Request for Quotation (RFQ) for PEF 82912 F 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 82912 F V1.4 reliable?
The price and inventory of PEF 82912 F 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 82912 F V1.4 is usually 5 days.
3.What payment methods are accepted for PEF 82912 F V1.4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PEF 82912 F V1.4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PEF 82912 F V1.4?
PEF 82912 F V1.4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PEF 82912 F 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 82912 F V1.4?
For technical support, including PEF 82912 F V1.4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PEF 82912 F V1.4 requirements.
6.How does Aetrix verify that PEF 82912 F V1.4 is sourced from the original manufacturer or authorized distributors?
All PEF 82912 F 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 82912 F V1.4 meets industry standards.
7.What is the process for return or replacement of PEF 82912 F V1.4?
All PEF 82912 F V1.4 units undergo pre-shipment inspection (PSI). If there is an issue with PEF 82912 F 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 82912 F V1.4 part is unused and in its original packaging.
Return procedure for PEF 82912 F V1.4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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