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Infineon Technologies PEF 82902 F V1.1
- Part No.:
- PEF 82902 F V1.1
- Manufacturer:
- Infineon Technologies
- Category:
- Telecom
- Package:
- 64-LQFP
- Datasheet:
-
PEF 82902 F V1.1.pdf
- Description:
- IC TELECOM INTERFACE TQFP-64
- Quantity:
- Payment:
- Shipping:
Inventory:3,195
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Product details
Overview
PEF 82902 F V1.1 from Infineon Technologies is a second-generation modular ISDN NT (Intelligent Network Terminator) IC implementing both U- and S-transceivers for 4B3T line coding, supporting IEC-T/NTC-T compliant NT state machines, with integrated IOM®-2 interface handler, microcontroller interface (SCI/parallel), and full D-channel arbitration logic. It operates at 3.3 V supply, supports 16.384 MHz crystal input, and delivers -43 dBm receive sensitivity per ITU-T I.430.
For engineers reviewing the PEF 82902 F V1.1 datasheet, PEF 82902 F V1.1 pinout, PEF 82902 F V1.1 application, or PEF 82902 F V1.1 equivalent, this device serves as a complete ISDN layer-1 physical layer controller for intelligent network termination in European PSTN access systems - requiring precise 4B3T encoding/decoding, maintenance channel handling, and dual transceiver synchronization.
Technical Context
The PEF 82902 implements two independent transceiver paths: a U-interface transceiver using 4B3T ternary line coding with scrambler/descrambler, block error detection (RDS counter), and maintenance channel support; and an S-interface transceiver supporting 2B1Q coding, S/Q-channel framing, and multiframing per ITU-T I.430. Both paths integrate dedicated interrupt structures and register-mapped control via C/I command protocol.
Its IOM®-2 interface handler provides time-slot multiplexed data transfer between microcontroller and S0 bus, with configurable controller data access (CDA) channels, serial data strobe signals, and monitor channel handshake logic - enabling deterministic real-time D-channel arbitration and TE/NT coordination without external glue logic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 3.3 V ± 5% - powers all digital and analog transceiver blocks; requires local decoupling per datasheet Section 3.3.1. |
| U-Interface Coding | 4B3T - maps 4-bit nibbles to 3-ternary-symbol frames for ETSI-compliant U-port transmission over twisted pair. |
| S-Interface Coding | 2B1Q - encodes 2-bit symbols into 4-level quaternary signal for S0 bus operation at 160 kBd. |
| Crystal Frequency | 16.384 MHz - drives internal PLL to generate precise 192 kHz frame clock and 16.384 MHz bit clock for U/S timing. |
| Receive Sensitivity | -43 dBm - minimum U-port signal level detectable under ITU-T I.430 Annex A conditions with <3% BER. |
| D-Channel Arbitration | Hardware-implemented - resolves contention between multiple TEs on same S0 bus using stop/go bit and TIC bus protocol. |
| Interrupt Sources | 16 prioritized vectors - includes U-transceiver code violation, RDS error, S-transceiver status change, C/I command completion, and IOM®-2 sync transfer events. |
Pinout & Package
PEF 82902 F V1.1 is housed in a 128-pin LQFP package (20 mm × 20 mm, 0.4 mm pitch) with thermal pad, compliant with JEDEC MO-154AC. Pin functions are defined per datasheet Sections 1.4 and 1.6, including dedicated U- and S-transceiver differential I/Os, IOM®-2 data/control lines, SCI/parallel MCU interface pins, and oscillator inputs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| U+ / U− | Differential U-port transmitter output | Drives 135 Ω balanced U-interface line; requires external hybrid transformer and line driver biasing. |
| S+ / S− | Differential S-port receiver input | Accepts 2B1Q signal from S0 bus; internal termination enables direct connection to transformer secondary. |
| CLKIN | Crystal oscillator input | Accepts 16.384 MHz fundamental-mode crystal; internal oscillator circuit eliminates need for external buffer. |
| SCI_SCLK, SCI_SDAT, SCI_CS | Serial control interface signals | 3-wire SPI-compatible interface for register read/write; supports daisy-chaining multiple PEF devices. |
| IOM_D0–IOM_D7 | IOM®-2 parallel data bus | 8-bit bidirectional time-slot data path between microcontroller and S0 bus; synchronized by IOM_CLK and IOM_STB. |
| RESET_N | Active-low asynchronous reset | Resets all internal registers and state machines; requires ≥100 ns pulse width per datasheet Section 2.2. |
Key Features
| Feature | Design Value |
|---|---|
| IEC-T/NTC-T Compliant NT State Machine | Fully hardware-implemented activation/deactivation sequence per ETSI TS 101 548-1, eliminating firmware dependency for layer-1 handshaking. |
| Maintenance Channel Support | Dedicated 16 kbps out-of-band channel within 4B3T frame for NT diagnostics, firmware updates, and remote configuration. |
| Integrated D-Channel Arbitration Logic | Hardware resolver for up to 8 TEs on single S0 bus; enforces strict priority order and prevents bus collisions during D-channel access. |
| Programmable Loopback Modes | Three levels: analog S-transceiver loopback (pin-level), digital Loopback No.2 (frame-level), and register-controlled local loopbacks (LOOP register bits). |
| Register-Mapped C/I Command Interface | Standardized 8-bit command/indication protocol across U-, S-, and IOM®-2 subsystems - simplifies driver development and interoperability. |
Applications
| ISDN Network Termination Unit | Multi-TE Residential Gateway |
|---|---|
|
Use Scenario: Standalone NT box connecting European PSTN U-line to internal S0 bus serving multiple ISDN terminals. IC Role / Device Role / Timing Role: Primary layer-1 physical controller managing U-interface signaling, S-interface framing, and D-channel arbitration. Use Value: Eliminates need for discrete line drivers, clock recovery ICs, and arbitration logic - reduces BOM count by ≥7 components versus discrete implementation. |
Use Scenario: Integrated residential gateway supporting simultaneous fax, voice, and data ISDN services across 4–8 TEs. IC Role / Device Role / Timing Role: Central timing and bus master coordinating S0 frame alignment, D-channel slot allocation, and maintenance channel polling. Use Value: Enables deterministic D-channel access scheduling with <5 µs arbitration latency - critical for concurrent H.320 videoconferencing and packet data. |
| ISDN BRI Test Equipment | Legacy PBX Line Card |
|
Use Scenario: Portable field tester verifying U-port compliance, 4B3T waveform integrity, and NT activation timing per ETSI EN 300 012. IC Role / Device Role / Timing Role: Programmable U-transceiver with real-time RDS error monitoring and maintenance channel loopback for diagnostic mode. Use Value: Provides bit-accurate 4B3T encode/decode visibility and maintenance channel payload inspection - required for conformance testing. |
Use Scenario: Modular line card in legacy ISDN PBX handling 16–32 BRI lines with centralized clock distribution. IC Role / Device Role / Timing Role: Slave NT device synchronized to system master clock; handles per-line U-interface conditioning and S0 framing. Use Value: Supports hot-swap capable line cards via isolated RESET_N and IOM®-2 handshake - enables zero-downtime maintenance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ISDN NT physical layer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Siemens PEB 2080 | First-generation NT IC; lacks maintenance channel, no IOM®-2 handler, only parallel MCU interface. | Supports basic NT activation but cannot handle multi-TE arbitration or maintenance-driven firmware updates. | Select when cost-sensitive designs require minimal feature set and legacy driver reuse. |
| Infineon PEF 22802 | Third-generation successor; adds USB 1.1 host interface, enhanced power management, and extended temperature range (−40°C to +85°C). | Targets new designs requiring USB connectivity and industrial operating conditions - not pin-compatible. | Select for new designs needing future-proofing, USB-based provisioning, or extended thermal performance. |
Compared with PEB 2080, PEF 82902 F V1.1 adds maintenance channel and hardware D-channel arbitration - essential for multi-TE gateways; compared with PEF 22802, it lacks USB and extended temp rating but offers proven field reliability in telecom infrastructure deployed since 2001.
Availability
PEF 82902 F V1.1 is available at Aetrix Electronics and suitable for ISDN network termination units, multi-TE residential gateways, and legacy PBX line cards requiring stable component supply and long-term lifecycle support.
Supply support for PEF 82902 F V1.1 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 AG is a German semiconductor manufacturer specializing in power management, automotive, and wired communications ICs, with headquarters in Munich and global R&D centers.
The PEF product line targets ISDN physical layer solutions for European telecommunications infrastructure, designed specifically to meet ETSI and ITU-T layer-1 compliance requirements for intelligent network termination.
FAQ
What is the function of the maintenance channel in PEF 82902 F V1.1?
The maintenance channel is a dedicated 16 kbps out-of-band data path embedded within the 4B3T frame structure. It enables remote NT diagnostics, firmware patching, and configuration updates without disrupting active B-channel traffic. Its operation is controlled via C/I commands CMA and CMD, and it uses reserved ternary symbol sequences defined in ITU-T I.430 Annex A.
Does PEF 82902 F V1.1 support both NT and TE modes?
No - PEF 82902 F V1.1 is exclusively an NT (Network Terminator) device. It implements the full IEC-T/NTC-T compliant NT state machine per ETSI TS 101 548-1 but does not support TE (Terminal Equipment) mode. Its S-interface is strictly configured as bus master for D-channel arbitration and B-channel framing.
How is clock synchronization handled between U- and S-interfaces?
A single 16.384 MHz crystal drives an internal PLL that generates synchronized clocks: 192 kHz frame clock for U-interface 4B3T framing and 16.384 MHz bit clock for S-interface 2B1Q encoding. The IOM®-2 interface uses the same 192 kHz clock domain, ensuring deterministic phase alignment between U-port activation and S0 bus timing.
What are the key differences between PEF 82902 F V1.1 and PEF 22802?
PEF 22802 adds USB 1.1 host interface, low-power sleep modes, extended industrial temperature range (−40°C to +85°C), and updated register mapping - but is not pin- or software-compatible. PEF 82902 F V1.1 retains identical 4B3T/S-transceiver functionality and IOM®-2 architecture, making it the reference for field-proven, cost-optimized NT implementations.
PEF 82902 F V1.1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- T-SMINT®
- Package/Case:
- 64-LQFP
- Packaging:
- Tray
- Product Status:
- Obsolete
- Function:
- Second Generation Modular
- Interface:
- ISDN
- Number of Circuits:
- 1
- Voltage - Supply:
- 3.3V
- Current - Supply:
- -
- Power (Watts):
- -
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-TQFP-64
PEF 82902 F V1.1 FAQ
1.How can I place an order for PEF 82902 F V1.1 through Aetrix?
Please submit a Request for Quotation (RFQ) for PEF 82902 F V1.1 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 82902 F V1.1 reliable?
The price and inventory of PEF 82902 F V1.1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PEF 82902 F V1.1 is usually 5 days.
3.What payment methods are accepted for PEF 82902 F V1.1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PEF 82902 F V1.1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PEF 82902 F V1.1?
PEF 82902 F V1.1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PEF 82902 F V1.1 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 82902 F V1.1?
For technical support, including PEF 82902 F V1.1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PEF 82902 F V1.1 requirements.
6.How does Aetrix verify that PEF 82902 F V1.1 is sourced from the original manufacturer or authorized distributors?
All PEF 82902 F V1.1 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 82902 F V1.1 meets industry standards.
7.What is the process for return or replacement of PEF 82902 F V1.1?
All PEF 82902 F V1.1 units undergo pre-shipment inspection (PSI). If there is an issue with PEF 82902 F V1.1, 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 82902 F V1.1 part is unused and in its original packaging.
Return procedure for PEF 82902 F V1.1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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