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Renesas 82V2042EPF8
- Part No.:
- 82V2042EPF8
- Manufacturer:
- Renesas
- Category:
- Telecom
- Package:
- 80-LQFP
- Datasheet:
-
82V2042EPF8.pdf
- Description:
- IC TELECOM INTERFACE 80TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,091
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Product details
Overview
IDT82V2042EPF8 from Integrated Device Technology (IDT) is a dual-channel T1/E1/J1 short-haul line interface unit (LIU) designed for telecom infrastructure edge devices. It integrates clock/data recovery, AMI/B8ZS/HDB3 encoding/decoding, adaptive equalization, jitter attenuation, and PRBS/QRSS pattern generation/detection per channel. Key confirmed parameters: 3.3 V single supply with 5 V-tolerant I/O, 80-pin TQFP package, -20 dB receive sensitivity (Host Mode), and compliance with ANSI T1.102, ITU G.703/G.772, and ETSI 300-166.
For engineers reviewing the IDT82V2042EPF8 datasheet, IDT82V2042EPF8 pinout, IDT82V2042EPF8 application, or IDT82V2042EPF8 equivalent, this device supports hardware/software configuration of line impedance (75 Ω/100 Ω/110 Ω/120 Ω), programmable JA placement (RX/TX path), inband/remote/analog/digital loopback modes, and non-intrusive G.772 monitoring - critical for CSU/DSU, IAD, and wireless base station design.
Technical Context
The IDT82V2042EPF8 implements two independent T1/E1/J1 physical layer channels, each with fully configurable transmit waveform shaping (preset templates or arbitrary 4-bit pulse control), selectable B8ZS/HDB3/AMI coding, and per-channel termination impedance selection. Its adaptive equalizer enables dynamic receive sensitivity adjustment up to -20 dB, while the programmable jitter attenuator can be placed in either receive or transmit path-or disabled entirely.
Control is supported via serial (SPI/I²C-compatible) or parallel (Motorola/Intel non-multiplexed) interfaces, plus JTAG boundary scan and hardware pin mode selection (MODE[1:0], RXTXM[1:0], JA[1:0]). All digital I/O pins are 5 V tolerant, and power-down modes exist independently for transmitter, receiver, and entire channel.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 3.3 V nominal, with 5 V tolerance on all digital I/O pins - eliminates level-shifting in mixed-voltage systems. |
| Data Rates | 1.544 Mbps (T1), 2.048 Mbps (E1), 1.544 Mbps (J1) - supports global telephony standards without reconfiguration. |
| Receive Sensitivity | -20 dBm (Host Mode with adaptive equalizer enabled) - extends usable cable length in short-haul deployments. |
| Jitter Attenuation | Configurable position (RX or TX path) and disable option - allows system-level jitter budget allocation flexibility. |
| Line Impedance | Per-channel selection: 75 Ω, 100 Ω, 110 Ω, or 120 Ω - enables single-BOM support across T1/E1/J1 line conditions. |
| Error Monitoring | Integrated 16-bit BPV/Excess Zero/PRBS/QRSS counter - provides real-time line health diagnostics without external logic. |
| Loopback Modes | Analog, digital, remote, and inband - supports comprehensive field and lab diagnostics per ITU G.772. |
Pinout & Package
Package: 80-pin TQFP (Thin Quad Flat Package), RoHS-compliant green option available. Pin pitch: 0.5 mm. Body size: 12 mm × 12 mm × 1.4 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TTIP1/TRING1 TTIP2/TRING2 | Differential transmit outputs (Ch1/Ch2) | Line driver bipolar tip/ring outputs; individually or globally set to high-Z via THZ pin or TCF1 register bit. |
| RTIP1/RRING1 RTIP2/RRING2 | Differential receive inputs (Ch1/Ch2) | Adaptive-equalized differential inputs supporting -20 dBm sensitivity; internal termination selectable per channel. |
| TCLK1/RCLK1 TCLK2/RCLK2 | Transmit/receive clock (Ch1/Ch2) | Edge-selectable (rising/falling) clocks; loss detection triggers automatic high-Z or LOS assertion. |
| JA0/JA1 | Jitter attenuator configuration | 2-bit control to place jitter attenuator in RX path, TX path, or disable - no external components required. |
| MONT1/MONT2 | G.772 monitor enable (Ch1/Ch2) | Activates non-intrusive monitoring per ITU G.772; allows real-time line status observation without service interruption. |
| TERM1/TERM2 | Termination impedance select (Ch1/Ch2) | Hardware-selectable line termination: 75 Ω, 100 Ω, 110 Ω, or 120 Ω - eliminates board-level resistor changes. |
Key Features
| Feature | Design Value |
|---|---|
| Hitless Protection Switching (HPS) | Enables 1+1 line redundancy without external relays or service interruption - reduces failover latency to sub-millisecond. |
| Programmable wave-shaping templates | Four preset E1/T1/J1 pulse templates plus user-defined 4-bit arbitrary waveform control - ensures compliance across cable lengths (0–655 ft). |
| PRBS/QRSS generation & detection | 2¹⁵−1 PRBS for E1 and 2²⁰−1 QRSS for T1/J1 - enables standardized line integrity testing per ITU-T O.150/O.151. |
| LOS level programmability | Adjustable declare/clear thresholds in Host Mode - accommodates varying line loss profiles without hardware change. |
| 5 V-tolerant digital I/O | All control and data interface pins tolerate 5 V - simplifies integration with legacy 5 V microcontrollers and FPGAs. |
Applications
| CSU/DSU Equipment | Wireless Base Stations |
|---|---|
Use Scenario: Digital circuit termination between telco central office and enterprise premises over T1/E1 lines. IC Role / Device Role / Timing Role: Dual-channel LIU performing line coding (B8ZS/HDB3), clock recovery, and AIS/LOS monitoring at physical layer. Use Value: Single-chip replacement for discrete transceiver + equalizer + timing ICs; reduces BOM count by ≥7 components per channel. | Use Scenario: Backhaul interface connecting BTS to aggregation node using E1 or T1 leased lines. IC Role / Device Role / Timing Role: Short-haul line interface with adaptive equalization and G.772-compliant monitoring for remote fault isolation. Use Value: Enables -20 dBm receive sensitivity to extend reach over aging copper plant; inband loopback supports remote diagnostics. |
| IAD (Integrated Access Device) | Frame Relay Access Devices |
Use Scenario: Multi-service gateway aggregating voice, data, and fax over T1/E1 into IP networks. IC Role / Device Role / Timing Role: Dual-channel line interface with PRBS/QRSS pattern generation for service activation and SLA verification. Use Value: Hardware-accelerated error counting (BPV/EXZ) and real-time STAT0/STAT1 registers enable automated provisioning scripts. | Use Scenario: Edge device connecting enterprise LAN to frame relay cloud via E1/T1 access link. IC Role / Device Role / Timing Role: Physical layer transceiver with HPS support for redundant line provisioning and hitless switchover. Use Value: Eliminates external protection relays and associated control logic; reduces MTTR during line failure events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar line interface unit applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Microchip SY89429L | Single-channel E1 LIU; no adaptive equalizer; fixed 75 Ω/120 Ω termination; no HPS or JTAG. | Limited to E1-only, non-redundant deployments; lacks G.772 monitoring and PRBS/QRSS diagnostics. | Select when cost-sensitive, single-E1, non-HA designs require minimal feature set and smaller footprint. |
| Maxim MAX3273E | Dual-channel E1 LIU only; no T1/J1 support; integrated transformer drivers; no programmable JA or LOS threshold. | Optimized for E1-centric metro access; requires external clock clean-up for jitter-sensitive applications. | Choose for E1-only systems where transformer-coupled line interface and lower power consumption are prioritized over multi-standard flexibility. |
Compared with SY89429L and MAX3273E, the IDT82V2042EPF8 uniquely delivers T1/E1/J1 switchability, adaptive equalization, HPS, and full G.772 monitoring in one package - enabling unified BOMs across global telecom markets and reducing qualification effort for multi-region deployments.
Availability
IDT82V2042EPF8 is available at Aetrix Electronics and suitable for CSU/DSU equipment, wireless base stations, and IADs requiring stable component supply, long-term lifecycle assurance, and traceable sourcing for telecom infrastructure.
Supply support for IDT82V2042EPF8 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) was a fabless semiconductor company specializing in timing, memory interface, RF, and high-performance interconnect solutions before its acquisition by Renesas Electronics in 2019. IDT's telecom portfolio emphasized carrier-grade reliability and standards compliance.
The IDT82V2042EPF8 belongs to IDT's legacy Line Interface Unit (LIU) product line, engineered specifically for short-haul T1/E1/J1 physical layer interfacing in carrier-class access and edge equipment - emphasizing configurability, diagnostic depth, and interoperability across global telephony standards.
FAQ
What standards does the IDT82V2042EPF8 comply with?
The IDT82V2042EPF8 complies with ANSI T1.102, T1.403, and T1.408; ITU-T I.431, G.703, G.736, G.775, and G.823; ETSI 300-166, 300-233, and TBR12/13; and AT&T Pub 62411. These cover electrical, timing, coding, and monitoring requirements for T1/E1/J1 short-haul line interfaces - ensuring interoperability in global telecom networks.
Does the IDT82V2042EPF8 support both T1 and E1 on the same device simultaneously?
Yes, the IDT82V2042EPF8 supports concurrent T1 and E1 operation - each channel is independently configurable for T1, E1, or J1 mode via software or hardware pins (MODE[1:0], TERMn). This enables mixed-line deployments, such as T1 on Channel 1 and E1 on Channel 2, without firmware or hardware modification.
How is jitter handled in the IDT82V2042EPF8?
The IDT82V2042EPF8 includes a programmable jitter attenuator that can be placed in either the receive path or transmit path - or disabled - via JA[1:0] pins or register control. It meets ITU-T G.823 jitter transfer and tolerance requirements, with measured performance documented in Tables 64 and 65 of the datasheet.
What loopback modes does the IDT82V2042EPF8 support?
The IDT82V2042EPF8 supports four loopback modes: analog (line-side), digital (system-side), remote (via AIS signaling), and inband (using defined code sequences). Each is configurable per channel via registers or hardware pins, and all comply with ITU-T G.772 for non-intrusive monitoring and diagnostics.
Is the IDT82V2042EPF8 pin-compatible with other IDT LIUs?
Yes, the IDT82V2042EPF8 is pin-compatible with the IDT82V2082 (T1/E1/J1 long/short haul LIU) and IDT82V2052E (E1 short-haul LIU), as stated in the official datasheet. This allows drop-in upgrades or design reuse across different reach and standard requirements without PCB revision.
82V2042EPF8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 80-LQFP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Line Interface Unit (LIU)
- Interface:
- LIU
- Number of Circuits:
- -
- Voltage - Supply:
- 3.13V ~ 3.47V
- Current - Supply:
- -
- Power (Watts):
- -
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 80-TQFP (14x14)
82V2042EPF8 FAQ
1.How can I place an order for 82V2042EPF8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 82V2042EPF8 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 82V2042EPF8 reliable?
The price and inventory of 82V2042EPF8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 82V2042EPF8 is usually 5 days.
3.What payment methods are accepted for 82V2042EPF8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 82V2042EPF8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 82V2042EPF8?
82V2042EPF8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 82V2042EPF8 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 82V2042EPF8?
For technical support, including 82V2042EPF8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 82V2042EPF8 requirements.
6.How does Aetrix verify that 82V2042EPF8 is sourced from the original manufacturer or authorized distributors?
All 82V2042EPF8 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 82V2042EPF8 meets industry standards.
7.What is the process for return or replacement of 82V2042EPF8?
All 82V2042EPF8 units undergo pre-shipment inspection (PSI). If there is an issue with 82V2042EPF8, 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 82V2042EPF8 part is unused and in its original packaging.
Return procedure for 82V2042EPF8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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