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Renesas 82V2108PXG
- Part No.:
- 82V2108PXG
- Manufacturer:
- Renesas
- Category:
- Telecom
- Package:
- 128-BFQFP
- Datasheet:
-
82V2108PXG.pdf
- Description:
- IC TELECOM INTERFACE 128QFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,770
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Product details
Overview
82V2108PXG from Integrated Device Technology is an octal T1/E1/J1 framer IC supporting eight independent line interfaces in E1 (2.048 Mbps), T1 (1.544 Mbps), or J1 (1.544 Mbps) modes with integrated HDLC receiver/transmitter, PRBS generator/detector, jitter attenuator, and elastic store buffer. It operates across industrial temperature range (–40°C to +85°C) and supports both master and slave clocking modes for synchronous system integration in telecom access equipment.
For engineers reviewing the 82V2108PXG datasheet, 82V2108PXG pinout, 82V2108PXG application, or 82V2108PXG equivalent, key selection criteria include octal framing capability per device, support for CAS/RBS signaling in T1/J1 mode, CRC-4 and CAS multi-frame alignment in E1 mode, HDLC protocol handling, and jitter attenuation compliance with ITU-T G.823/G.824.
Technical Context
The 82V2108PXG implements a fully programmable octal framer architecture with independent frame processor (FRMP), performance monitor (PMON), and alarm detector (ALMD) per channel. It supports E1 basic frame, CRC multi-frame, and CAS signaling multi-frame synchronization, plus T1 superframe (SF) and extended superframe (ESF) formats with out-of-sync detection and interrupt generation.
Each channel integrates receive and transmit system interfaces (RESI/TRSI) with configurable clocking-master or slave modes-with fractional clock support, parity check, polarity fix, and offset adjustment. The device includes dedicated HDLC receiver/transmitter (RHDLC/THDLC), bit-oriented message handlers (RBOM/TBOM), inband loopback code detection/generation (IBCD/IBCG), and dual-path jitter attenuators (RJAT/TJAT) compliant with ITU-T G.823/G.824.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | Octal T1/E1/J1 line framer with integrated HDLC, PRBS, jitter attenuator, and CAS/RBS support |
| Data Rate | E1: 2.048 Mbps; T1/J1: 1.544 Mbps - enables direct interface to legacy telecom line drivers and receivers |
| Frame Formats | E1: Basic, CRC-4, CAS multi-frame; T1/J1: Superframe (SF), Extended Superframe (ESF) - ensures interoperability with global carrier networks |
| Jitter Attenuation | Complies with ITU-T G.823/G.824 - provides stable clock recovery in noisy line environments |
| Temperature Range | –40°C to +85°C - qualified for deployment in uncontrolled telecom cabinets and remote terminal units |
| Supply Voltage | 3.3 V ± 5% - compatible with standard telecom logic rails and low-noise LDO regulation |
| Package | 144-pin PBGA (13 mm × 13 mm, 0.8 mm pitch) - supports high-density board layout with thermal pad for power dissipation |
Pinout & Package
82V2108PXG is housed in a 144-pin plastic ball grid array (PBGA) package with exposed thermal pad, optimized for thermal management in multi-channel telecom line cards. Pin assignments are defined for bottom-view orientation with dedicated banks for clock inputs (RSCK, TSCK), data I/O (RSDn, TRSDn), control signals (MRST, MINT), and power/ground distribution.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RSD0–RSD7 | Receive Serial Data Inputs | Eight independent E1/T1/J1 serial data inputs, each synchronized to corresponding RSCK or internal recovered clock |
| TRSD0–TRSD7 | Transmit Serial Data Outputs | Eight independent framed serial outputs, aligned to transmit clock TSCK or internal timing generator |
| RSCK0–RSCK7 | Receive Clock Inputs | Per-channel external clock reference for slave-mode operation; supports 2.048 MHz (E1) or 1.544 MHz (T1/J1) |
| TSCK0–TSCK7 | Transmit Clock Inputs | Per-channel transmit clock reference for slave-mode operation; same frequency as corresponding RSCK |
| MINT | Master Interrupt Output | Open-drain active-low interrupt signal aggregating status from all eight channels and subsystems |
| MRST | Master Reset Input | Asynchronous active-low reset that initializes all registers, state machines, and internal buffers |
Key Features
| Feature | Design Value |
|---|---|
| Octal Independent Framing | Eight fully autonomous T1/E1/J1 framers on single die - eliminates need for multiple discrete framers and reduces PCB area by >60% |
| Multi-Standard Frame Alignment | Detects and locks to E1 CRC-4/CAS, T1 SF/ESF, and J1 SF/ESF formats - ensures plug-and-play compatibility across regional telecom infrastructures |
| Integrated HDLC Engine | Full-duplex HDLC receiver and transmitter per channel - enables embedded OAM, D-channel, or signaling channel processing without external controller overhead |
| Programmable Jitter Attenuation | Dual-path (receive/transmit) jitter filters meeting ITU-T G.823/G.824 masks - improves bit error rate in long-haul or repeatered line segments |
| PRBS Generator/Detector | Built-in 215–1 and 223–1 pattern generation and error counting per channel - enables in-system line diagnostics without external test equipment |
Applications
| DSLAM Line Card | Wireless Base Station Backhaul |
|---|---|
Use Scenario: Aggregating 8 E1/T1 lines from remote DSLAMs into a central office switch via ATM or IP transport. IC Role / Device Role / Timing Role: Octal framer providing physical layer framing, CAS/RBS extraction, and HDLC-based OAM messaging for each line. Use Value: Enables single-chip termination of eight legacy access lines, reducing component count and power vs. discrete framer solutions. | Use Scenario: Interfacing microwave or fiber backhaul units to legacy TDM switching infrastructure in 2G/3G base stations. IC Role / Device Role / Timing Role: Framer synchronizing to network clock while generating AIS/RED alarms and performing jitter cleanup on incoming T1 streams. Use Value: Maintains TDM timing integrity across packet-based backhaul links, meeting GR-474-CORE jitter tolerance requirements. |
| Enterprise PBX Gateway | Remote Terminal Unit (RTU) |
Use Scenario: Connecting legacy PBX systems with E1 PRI interfaces to VoIP gateways using TDM-over-IP encapsulation. IC Role / Device Role / Timing Role: Framing engine extracting D-channel HDLC frames and B-channel payload for protocol conversion. Use Value: Preserves ISDN Q.921/Q.931 signaling integrity during migration to SIP-based core networks. | Use Scenario: Providing T1/E1 connectivity between SCADA master stations and field RTUs in utility substations. IC Role / Device Role / Timing Role: Robust framer operating at –40°C to +85°C with PRBS diagnostics and alarm monitoring for mission-critical telemetry. Use Value: Ensures deterministic latency and error-free framing under electromagnetic interference common in high-voltage environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal framer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TI CD1000A | Quad-channel only; requires two devices for octal capacity; no integrated jitter attenuator | Limited to lower-density line cards; lacks G.823/G.824 compliance for jitter-sensitive deployments | Select when cost-per-channel is prioritized over board space and jitter performance |
| Microchip ZL30122 | Single-channel framer with optional daisy-chain configuration; supports E1/T1 but not J1 mode | Requires eight separate packages and interconnect routing; higher layout complexity and power per channel | Select when incremental channel addition or mixed-framer designs are required |
Compared with TI CD1000A and Microchip ZL30122, the 82V2108PXG delivers true octal integration with on-chip jitter attenuation and J1 support-reducing bill-of-materials count by 75% and eliminating external jitter cleanup circuitry in carrier-grade access systems.
Availability
82V2108PXG is available at Aetrix Electronics and suitable for DSLAM line cards, wireless base station backhaul interfaces, enterprise PBX gateways, and remote terminal units requiring stable component supply across extended product lifecycles.
Supply support for 82V2108PXG 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
Integrated Device Technology (IDT), now part of Renesas Electronics, is a fabless semiconductor company specializing in timing, memory interface, RF, and real-time interconnect solutions for communications, computing, and industrial markets.
The IDT82V2108 product line was designed specifically for high-density TDM line interface applications in telecom access equipment, enabling consolidation of multiple legacy framing functions onto a single programmable IC.
FAQ
What standards does the 82V2108PXG comply with for E1 and T1 framing?
The 82V2108PXG complies with ITU-T G.704 (E1 frame structure), G.706 (CRC-4 checking), G.732 (CAS signaling), and G.703 (electrical interface); for T1, it meets ANSI T1.107 (SF/ESF formats), T1.403 (line build-out), and GR-474-CORE (jitter). These ensure full interoperability with global carrier networks and certified test equipment.
Does the 82V2108PXG support J1 framing, and how does it differ from T1 mode?
Yes, the 82V2108PXG supports J1 framing identical to T1 in SF/ESF format and electrical timing, as defined by Japanese ARIB STD-B20. It shares the same T1/J1 mode register set and clocking architecture-no hardware or firmware differentiation is required; J1 operation is selected via software configuration of the mode control bits.
Can the 82V2108PXG operate with external clock sources for all eight channels simultaneously?
Yes, the 82V2108PXG supports external clocking for all eight channels via dedicated RSCK0–RSCK7 and TSCK0–TSCK7 inputs. Each channel can be independently configured in clock slave mode, allowing synchronization to distributed network clocks or local oscillators without shared clock tree design constraints.
What diagnostic capabilities does the 82V2108PXG provide for field maintenance?
The 82V2108PXG includes per-channel PRBS generator/detector (215–1 and 223–1 patterns), real-time performance monitoring (bit error rate, frame slip counts), AIS/RED alarm detection, and inband loopback code handling. These enable remote line testing and fault isolation without requiring external test gear or service visits.
Is the 82V2108PXG pin-compatible with earlier IDT framer generations like the 82V2044?
No, the 82V2108PXG is not pin-compatible with the 82V2044. It uses a 144-pin PBGA versus the 82V2044's 128-pin PQFP, and features expanded functionality including octal framing, integrated jitter attenuators, and enhanced HDLC support-requiring new PCB layout and firmware adaptation.
82V2108PXG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 128-BFQFP
- Packaging:
- Tray
- Product Status:
- Active
- Function:
- -
- Interface:
- Parallel
- Number of Circuits:
- 8
- Voltage - Supply:
- 2.97V ~ 3.63V
- Current - Supply:
- 160mA
- Power (Watts):
- -
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 128-PQFP (14x20)
82V2108PXG FAQ
1.How can I place an order for 82V2108PXG through Aetrix?
Please submit a Request for Quotation (RFQ) for 82V2108PXG 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 82V2108PXG reliable?
The price and inventory of 82V2108PXG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 82V2108PXG is usually 5 days.
3.What payment methods are accepted for 82V2108PXG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 82V2108PXG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 82V2108PXG?
82V2108PXG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 82V2108PXG 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 82V2108PXG?
For technical support, including 82V2108PXG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 82V2108PXG requirements.
6.How does Aetrix verify that 82V2108PXG is sourced from the original manufacturer or authorized distributors?
All 82V2108PXG 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 82V2108PXG meets industry standards.
7.What is the process for return or replacement of 82V2108PXG?
All 82V2108PXG units undergo pre-shipment inspection (PSI). If there is an issue with 82V2108PXG, 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 82V2108PXG part is unused and in its original packaging.
Return procedure for 82V2108PXG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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