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Texas Instruments SN65LVCP404RGZT
- Part No.:
- SN65LVCP404RGZT
- Manufacturer:
- Texas Instruments
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
SN65LVCP404RGZT.pdf
- Description:
- IC CROSSPOINT SW 1 X 4:4 48VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,999
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Product details
Overview
SN65LVCP404RGZT from Texas Instruments is a 4×4 non-blocking gigabit crosspoint switch for high-speed serial interconnects, supporting up to 4.25 Gbps per lane with 30 ps deterministic jitter, 500 ps typical propagation delay, and integrated VML signaling. It operates from a single 3.3-V supply and features selectable transmit pre-emphasis (0–9 dB) and receive equalization (5 dB or 12 dB) for FR4 backplane signal integrity in telecom/datacom routing systems.
For engineers reviewing the SN65LVCP404RGZT datasheet, SN65LVCP404RGZT pinout, SN65LVCP404RGZT application, or SN65LVCP404RGZT equivalent, this page delivers verified technical context, package mapping, real-world switching behavior, thermal performance, and validated alternative options - all grounded in TI's SLLS700B datasheet and production packaging data.
Technical Context
The SN65LVCP404RGZT implements a fully differential, flow-through 4×4 crosspoint architecture with four independent 4:1 multiplexers - one per output - enabling any input (1A/1B through 4A/4B) to be routed to any output (1Y/1Z through 4Y/4Z) without blocking. Each path includes on-die 100-Ω differential termination and supports CML-compatible inputs and VML outputs.
It integrates per-lane LVTTL control for data enable (xDE), switching selection (Sx0/Sx1), and pre-emphasis configuration (Px2/Px1), plus a global EQ pin to select 5 dB or 12 dB receive equalization. The device uses self-biasing receiver inputs (VBB) and requires connection of the exposed thermal pad to GND for thermal management.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data rate | Up to 4.25 Gbps per lane - enables XAUI 802.3ae-compliant backplane links with PRBS27-1 pattern compliance. |
| Deterministic jitter | 30 ps peak-to-peak (intrinsic) - ensures clean eye opening after 25-inch FR4 trace with 5 dB EQ enabled. |
| Propagation delay | 500 ps typical - minimizes timing skew across lanes in synchronous multi-channel routing applications. |
| Supply voltage | 3.3 V ±5% - compatible with standard LVCMOS/LVTTL logic rails and eliminates need for dual supplies. |
| Power dissipation | 560 mW (all outputs terminated) - enables dense placement in telecom line cards without forced-air cooling. |
| Input compatibility | CML-level differential inputs (100–1750 mVPP) - interoperable with ASIC/FPGA SerDes transmitters without level-shifting. |
| Output configuration | VML differential outputs with 3-state capability via xDE pins - allows dynamic channel isolation and power gating. |
| Equalization & pre-emphasis | Selectable 5 dB / 12 dB EQ and 0–9 dB pre-emphasis - compensates for frequency-dependent loss across 8–40 inch FR4 traces. |
Pinout & Package
SN65LVCP404RGZT is housed in a 48-pin VQFN (RGZ) package measuring 7 mm × 7 mm with 0.5 mm pitch and 1 mm max height. The exposed thermal pad must be soldered to a solid GND plane for thermal reliability (θJB = 20°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1A, 2A, 3A, 4A / 1B, 2B, 3B, 4B | Differential input pairs | CML-compatible line-side inputs; internally terminated to VBB (1.6 V) with 50-Ω resistors. |
| 1Y, 2Y, 3Y, 4Y / 1Z, 2Z, 3Z, 4Z | Differential output pairs | VML outputs with 100-Ω on-die differential termination; support 3-state via xDE control. |
| 1DE, 2DE, 3DE, 4DE | Output enable (active low) | LVTTL input; drives corresponding output pair into high-impedance state for power savings or bus sharing. |
| S10–S41, P11–P42 | Switching & pre-emphasis control | LVTTL inputs selecting input source per output (Sx0/Sx1) and pre-emphasis level per output (Px2/Px1). |
| EQ | Receive equalization mode | LVTTL input: EQ = 1 → 5 dB gain (25-inch FR4); EQ = 0 → 12 dB gain (43-inch FR4). |
| VCC (pins 8,18,29,39,46) | Power supply | 3.3 V supply connections; five dedicated pins reduce IR drop and improve PSRR. |
| GND (pins 5,15,26,32,42) | Ground reference | Five ground pins + thermal pad ensure low-inductance return paths for high-speed signaling. |
| VBB (pin 12) | Receiver bias voltage | Self-bias node for AC-coupled inputs; left floating for optimal common-mode setting (1.6 V typical). |
Key Features
| Feature | Design Value |
|---|---|
| Non-blocking 4×4 crosspoint | Enables full matrix routing without contention - critical for redundant XAUI backplane failover and multi-ASIC interconnects. |
| Per-lane pre-emphasis control | Four independent 2-bit controls (Px2/Px1) allow optimized signal boost per link length - avoids over-compensation in mixed-trace systems. |
| Programmable receive equalization | Single EQ pin selects between 5 dB (shorter traces) and 12 dB (longer traces) - simplifies PCB layout by eliminating external EQ ICs. |
| Integrated 100-Ω differential termination | Eliminates need for eight external 100-Ω resistors - saves board space and reduces BOM count in high-density routing modules. |
| Flow-through pinout | Input and output pins arranged to minimize layer transitions and crosstalk - eases high-speed PCB routing in 6–8 layer telecom backplanes. |
| 3.3-V single-supply operation | Reduces power delivery complexity versus dual-rail alternatives - aligns with industry-standard SerDes supply domains. |
Applications
| Wireless Base Station Backhaul | High-Speed Network Router Line Card |
|---|---|
Use Scenario: Aggregating 4× 3.125 Gbps CPRI links from remote radio units into a centralized baseband unit via FR4 backplane. IC Role / Device Role / Timing Role: Crosspoint switch providing non-blocking re-routing of CPRI lanes during link failure or maintenance. Use Value: Enables hitless switchover with <30 ps deterministic jitter - preserves bit error rate below 10⁻¹² across 30-inch FR4 traces. |
Use Scenario: Interconnecting multiple 10-GbE PHYs and packet processors on a modular router line card with shared backplane bandwidth. IC Role / Device Role / Timing Role: Signal router managing XAUI 4-lane streams between switch fabric and interface ASICs. Use Value: Delivers 4.25 Gbps per lane with programmable EQ/pre-emphasis - extends usable FR4 trace length to 43 inches without external retimers. |
| Telecom Optical Transport Shelf | Data Center Storage Interconnect |
Use Scenario: Dynamic provisioning of OC-192/STM-64 SONET/SDH tributaries across multiple add-drop multiplexer slots. IC Role / Device Role / Timing Role: Reconfigurable signal path selector enabling hot-swap of service modules without interrupting active traffic. Use Value: 3-state outputs controlled by LVTTL xDE pins allow zero-latency channel isolation - meets ITU-T G.8262 holdover timing requirements. |
Use Scenario: Routing SAS-2 or Fibre Channel 4×8G signals between host bus adapters and storage controllers in blade server chassis. IC Role / Device Role / Timing Role: High-fidelity signal repeater and path selector for 8.0 Gbps serial links with minimal added jitter. Use Value: 500 ps propagation delay and <25 ps output skew ensure deterministic timing alignment across all 4 lanes - critical for SAS domain validation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed crosspoint switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN65LVCP22RGZT | 2×2 crosspoint, same 4.25 Gbps rating and VQFN-48 package but half the I/O count and no EQ/pre-emphasis controls. | Suitable only for point-to-point or dual-lane redundancy; lacks per-lane signal conditioning for long backplanes. | Choose when routing density and signal conditioning are not required - reduces cost and layout complexity for simpler topologies. |
| MAX4899AEUB+ | 4×4 crosspoint with 3.2 Gbps max rate, 3.3-V operation, and no integrated EQ/pre-emphasis; uses different pinout and control logic. | Requires external equalization circuitry for >15-inch FR4; not compliant with XAUI 802.3ae jitter budgets at 4.25 Gbps. | Consider only for legacy designs where TI's LVCP family is unavailable - verify layout changes due to non-flow-through pinout. |
Compared with SN65LVCP404RGZT, SN65LVCP22RGZT offers lower gate count and cost for 2-lane applications but omits critical signal integrity features; MAX4899AEUB+ provides pin-compatible footprint in some layouts but lacks deterministic jitter performance and integrated compensation needed for modern 4.25 Gbps backplanes.
Availability
SN65LVCP404RGZT is available at Aetrix Electronics and suitable for wireless infrastructure, high-speed network routing, and telecom/datacom equipment requiring stable component supply across extended product lifecycles.
Supply support for SN65LVCP404RGZT 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
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and high-speed interface solutions, with decades of expertise in signal integrity and timing products.
The SN65LVCP404RGZT belongs to TI's LVCP (Low-Voltage CrossPoint) family, designed specifically for gigabit serial interconnects in telecom, datacom, and wireless infrastructure where deterministic jitter, programmable equalization, and FR4 trace compensation are essential.
FAQ
What is the maximum supported data rate for SN65LVCP404RGZT?
The SN65LVCP404RGZT supports up to 4.25 Gbps per lane under recommended operating conditions, as confirmed by TI's SLLS700B datasheet with PRBS27-1 pattern testing. This rate is validated across the full –40°C to 85°C temperature range and meets XAUI 802.3ae protocol timing margins when used with appropriate pre-emphasis and equalization settings.
Does SN65LVCP404RGZT require external termination resistors?
No, SN65LVCP404RGZT integrates 100-Ω differential termination on all four output pairs (1Y/1Z through 4Y/4Z), eliminating the need for external resistors. Input termination is provided via internal 50-Ω resistors to VBB, making external termination unnecessary for standard CML-compatible sources.
How does the EQ pin affect SN65LVCP404RGZT performance?
The EQ pin on SN65LVCP404RGZT selects between two fixed equalization gains: EQ = 1 enables 5 dB gain (optimized for ~25-inch FR4 traces), while EQ = 0 enables 12 dB gain (for ~43-inch traces). This setting directly impacts deterministic jitter reduction - TI reports up to 60 ps improvement in jitter at the output versus input when EQ is properly configured.
What package type and thermal characteristics apply to SN65LVCP404RGZT?
SN65LVCP404RGZT uses a 48-pin VQFN (RGZ) package, 7 mm × 7 mm, 0.5 mm pitch, with an exposed thermal pad. Its thermal metrics include θJA = 33°C/W (4-layer JEDEC board), θJB = 20°C/W, and θJC = 23.6°C/W - confirming effective heat transfer when the thermal pad is soldered to a solid GND plane.
Can SN65LVCP404RGZT operate with AC-coupled inputs?
Yes, SN65LVCP404RGZT supports AC-coupled inputs. For optimal performance, VBB (pin 12) should be left floating to allow the internal self-biasing network to establish the correct common-mode voltage (~1.6 V). TI specifies VICM = 1.5–1.6 V for best jitter performance under AC coupling conditions.
SN65LVCP404RGZT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 65LVCP
- Package/Case:
- 48-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Crosspoint Switch
- Circuit:
- 1 x 4:4
- Independent Circuits:
- 1
- Current - Output High, Low:
- -
- Voltage Supply Source:
- Single Supply
- Voltage - Supply:
- 3.14V ~ 3.47V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-VQFN (7x7)
SN65LVCP404RGZT FAQ
1.How can I place an order for SN65LVCP404RGZT through Aetrix?
Please submit a Request for Quotation (RFQ) for SN65LVCP404RGZT 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 SN65LVCP404RGZT reliable?
The price and inventory of SN65LVCP404RGZT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN65LVCP404RGZT is usually 5 days.
3.What payment methods are accepted for SN65LVCP404RGZT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN65LVCP404RGZT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN65LVCP404RGZT?
SN65LVCP404RGZT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN65LVCP404RGZT 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 SN65LVCP404RGZT?
For technical support, including SN65LVCP404RGZT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN65LVCP404RGZT requirements.
6.How does Aetrix verify that SN65LVCP404RGZT is sourced from the original manufacturer or authorized distributors?
All SN65LVCP404RGZT 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 SN65LVCP404RGZT meets industry standards.
7.What is the process for return or replacement of SN65LVCP404RGZT?
All SN65LVCP404RGZT units undergo pre-shipment inspection (PSI). If there is an issue with SN65LVCP404RGZT, 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 SN65LVCP404RGZT part is unused and in its original packaging.
Return procedure for SN65LVCP404RGZT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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