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Texas Instruments DS64MB201SQE/NOPB
- Part No.:
- DS64MB201SQE/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Analog Switches - Special Purpose
- Package:
- 54-WFQFN Exposed Pad
- Datasheet:
-
DS64MB201SQE/NOPB.pdf
- Description:
- IC MUX/BUFFER DUAL 54WQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,691
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Product details
Overview
DS64MB201SQE/NOPB from Texas Instruments is a dual-lane 2:1 multiplexer / 1:2 fan-out buffer with programmable CTLE equalization (up to +33 dB) and transmit de-emphasis (up to −12 dB), operating at up to 6.4 Gbps. It supports SATA/SAS OOB pass-through, features 54-pin WQFN (10 mm × 5.5 mm) packaging, and delivers <0.25 UI residual DJ at 6.4 Gbps over 40" FR4 traces - enabling reliable signal integrity in high-density storage backplanes.
For engineers reviewing the DS64MB201SQE/NOPB datasheet, DS64MB201SQE/NOPB pinout, DS64MB201SQE/NOPB application, or DS64MB201SQE/NOPB equivalent, this device serves as a critical signal conditioning solution for SAS/SATA 6 Gbps upgrade paths, XAUI/RXAUI interconnects, and serial RapidIO systems where deterministic jitter control, electrical idle detection, and flexible lane routing are required.
Technical Context
The DS64MB201SQE/NOPB implements two independent lanes, each with a continuous-time linear equalizer (CTLE) on receive and a programmable de-emphasis driver on transmit. Each lane supports pin-mode or SMBus-mode configuration, with auto-rate detection (3/6 Gbps) and OOB signal pass-through compliant with SATA/SAS specifications.
Lane routing is controlled via SEL0/SEL1 and FANOUT pins, enabling 2:1 mux, 1:2 switch, or broadcast fan-out modes. Electrical idle detection is adjustable via SD_TH resistor (40–225 mVp-p), and VOD is programmable from 600 to 1200 mVp-p across all differential outputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max Data Rate | 6.4 Gbps per lane - enables full backward compatibility with SATA/SAS 1.5/3.0/6.0 Gbps and RXAUI 6.25 Gbps links. |
| Equalization Range | +33 dB CTLE boost at 3 GHz - opens completely closed input eyes induced by ISI on long FR4 traces. |
| De-Emphasis Range | −12 dB maximum - compensates channel loss while maintaining signal fidelity at receiver side. |
| Residual DJ @ 6.4 Gbps | <0.25 UI - measured over 40" 4-mil FR4 trace, ensuring robust timing margin in backplane applications. |
| Supply Voltage | 2.5 V ±5% - single-supply operation simplifies power delivery and reduces board-level complexity. |
| ESD Rating (HBM) | ≥6 kV - meets industrial-grade robustness requirements for handling and system integration. |
| Package | 54-pin WQFN (10 mm × 5.5 mm) - high-speed signal flow-thru layout minimizes trace discontinuities and crosstalk. |
Pinout & Package
DS64MB201SQE/NOPB uses a 54-pin WQFN package (10 mm × 5.5 mm) with exposed thermal pad (DAP = GND). The DAP must be connected to ground via ≥4 vias for optimal thermal and electrical performance. Pinout follows high-speed signal flow-thru architecture with dedicated A/B differential I/O banks and LVCMOS control pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SIA0+/SIA0−, SIB0+/SIB0−, DIN0+/DIN0− | CML differential inputs | Three independent input banks per lane; each with 50 Ω on-chip termination to VDD when enabled. |
| SOA0+/SOA0−, SOB0+/SOB0−, DOUT0+/DOUT0− | CML differential outputs | Low-power 50 Ω outputs with programmable de-emphasis; fully AC-coupled CML-compatible. |
| SEL0/SEL1, FANOUT | Lane routing control | Selects 2:1 mux path (A/B input → DOUT), 1:2 switch (DIN → A/B output), or broadcast fan-out mode. |
| EQA/EQB/EQD, DEMA/DEMB/DEMD | 3-level LVCMOS equalization/de-emphasis controls | Set CTLE gain (9/13.5/18.4 dB) and de-emphasis level (−3.5/−6/−9/−12 dB) per input/output bank in pin mode. |
| RATE, TXIDLEDO/TXIDLESO, SD_TH | Rate, idle, and threshold control | RATE enables auto-detect (float), 3 Gbps (0), or 6 Gbps (1); SD_TH sets idle detect threshold (40–225 mVp-p) via resistor. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable CTLE equalization | Up to +33 dB boost at 3 GHz - recovers signals degraded by inter-symbol interference on lossy PCB traces. |
| Adjustable transmit de-emphasis | −12 dB max with selectable pulse widths (160–330 ps) - matches channel loss profile without over-compensation. |
| SATA/SAS OOB signal pass-through | Preserves out-of-band idle/active signaling with <9.5 ns transition time - ensures link training compatibility. |
| Dual-mode configuration | Pin-control (ENSMB = 0) or SMBus register control (ENSMB = 1) - supports both simple hardware setup and fine-grained per-lane tuning. |
| Electrical idle detection | Adjustable threshold (40–225 mVp-p) via SD_TH pin - enables reliable low-power link state management. |
| Single 2.5 V supply | Eliminates need for auxiliary voltage rails - reduces BOM count and improves power efficiency in dense storage modules. |
Applications
| SAS/SATA Storage Backplane | High-Speed Serial Interconnect |
|---|---|
Use Scenario: 6 Gbps SAS expander connecting multiple HDDs/SSDs to host controller via FR4 backplane. IC Role / Device Role / Timing Role: Dual-lane 2:1 mux buffers and equalizes signals between controller and drives, compensating for 40" trace loss. Use Value: Enables seamless migration from SAS 3.0 to 6 Gbps without redesigning physical layout or sacrificing reach. |
Use Scenario: XAUI-to-RXAUI bridging in 10G Ethernet line cards with >20" FR4 routing. IC Role / Device Role / Timing Role: 1:2 fan-out buffer with de-emphasis driving two RXAUI receivers from one XAUI source. Use Value: Maintains <0.25 UI residual DJ at 6.25 Gbps, meeting IEEE 802.3ae jitter compliance for multi-drop topologies. |
| Serial RapidIO Switch Fabric | Fibre Channel Gen 3 Interface |
Use Scenario: sRIO 3.125/6.25 Gbps switch node requiring low-latency lane aggregation and signal recovery. IC Role / Device Role / Timing Role: Lane-selectable 2:1 mux with sub-200 ps propagation delay and <27 ps lane-to-lane skew. Use Value: Preserves packet timing integrity across redundant paths while supporting hot-plug link reconfiguration. |
Use Scenario: 4.25 Gbps Fibre Channel interface between HBA and optical transceiver module. IC Role / Device Role / Timing Role: Signal conditioner placed before FC transmitter to extend cable reach beyond 30 m. Use Value: Compensates for connector and cable loss using programmable equalization, eliminating need for active cables. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar signal conditioning multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DS64MB200SQE/NOPB | Single-lane version; identical equalization/de-emphasis specs but half the channel count. | Suitable only for point-to-point or non-multiplexed links; lacks dual-lane routing flexibility. | Select when system requires only one conditioned lane and board space is constrained. |
| DS125DF410RHAT | Quad-channel retimer with CDR; supports higher data rates (up to 12.5 Gbps) and includes clock data recovery. | Used in CDR-dependent applications (e.g., PCIe Gen4, 100G KR4); not drop-in compatible due to different architecture and power requirements. | Choose when deterministic jitter exceeds DS64MB201SQE/NOPB's correction capability and clock resynchronization is needed. |
Compared with DS64MB201SQE/NOPB, DS64MB200SQE/NOPB offers identical per-lane performance at lower channel density and cost, while DS125DF410RHAT adds CDR functionality for ultra-high-speed or long-reach applications where jitter accumulation exceeds CTLE-only correction limits.
Availability
DS64MB201SQE/NOPB is available at Aetrix Electronics and suitable for SAS/SATA storage backplanes, high-speed serial interconnects, and Fibre Channel Gen 3 interfaces requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for DS64MB201SQE/NOPB 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 signal integrity expertise.
The DS64MB201SQE/NOPB belongs to TI's high-speed signal conditioning portfolio, designed specifically for enterprise storage and communications infrastructure where channel loss compensation, low-jitter routing, and protocol-transparent operation are essential.
FAQ
What is the primary function of DS64MB201SQE/NOPB in a SAS/SATA system?
The DS64MB201SQE/NOPB acts as a dual-lane signal conditioner that performs receive equalization and transmit de-emphasis to restore signal integrity degraded by PCB trace loss. In SAS/SATA systems, it enables reliable 6 Gbps operation over extended FR4 backplanes while preserving OOB signaling for link training - a core requirement for backward-compatible storage expansion.
Does DS64MB201SQE/NOPB support automatic data rate detection?
Yes, DS64MB201SQE/NOPB supports automatic rate detection via the RATE pin. When configured in float state, the device detects incoming data rates (3 Gbps or 6 Gbps) and selects the optimal de-emphasis pulse width accordingly. This eliminates manual configuration during system upgrades from SATA/SAS 3.0 to 6.0 Gbps.
How is electrical idle detection configured on DS64MB201SQE/NOPB?
Electrical idle detection on DS64MB201SQE/NOPB is configured using the SD_TH pin. Connecting an external resistor (0–80 kΩ) to ground sets the differential idle threshold between 40 mVp-p and 225 mVp-p; floating SD_TH defaults to 130 mVp-p. TXIDLEDO and TXIDLESO pins then enable auto-detect, manual mute, or disable functions per output lane.
Can DS64MB201SQE/NOPB operate in both pin-control and SMBus modes simultaneously?
No, DS64MB201SQE/NOPB operates exclusively in one mode at a time, selected by the ENSMB pin. When ENSMB = 0, all configuration is done via LVCMOS control pins (EQA, DEMA, RATE, etc.). When ENSMB = 1, those pins become SMBus address lines (AD[3:0]), and all settings are controlled through SMBus registers - providing per-lane granularity unattainable in pin mode.
What package type and thermal requirements apply to DS64MB201SQE/NOPB?
DS64MB201SQE/NOPB uses a 54-pin WQFN package (10 mm × 5.5 mm) with an exposed thermal pad (DAP) that must be connected to the PCB ground plane using at least four thermal vias. This ensures junction-to-board thermal resistance (θJB) remains low enough to maintain ≤125°C junction temperature under full 2.5 V, 6.4 Gbps operation.
DS64MB201SQE/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 54-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- Networking, Telecommunications
- Multiplexer/Demultiplexer Circuit:
- 2:1, 1:2
- Switch Circuit:
- -
- Number of Channels:
- 3
- On-State Resistance (Max):
- -
- Voltage - Supply, Single (V+):
- 2.38V ~ 2.63V
- Voltage - Supply, Dual (V±):
- -
- -3db Bandwidth:
- -
- Features:
- Equalization, RXAUI, SATA, XAUI
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 54-WQFN (10x5.5)
DS64MB201SQE/NOPB FAQ
1.How can I place an order for DS64MB201SQE/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for DS64MB201SQE/NOPB 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 DS64MB201SQE/NOPB reliable?
The price and inventory of DS64MB201SQE/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS64MB201SQE/NOPB is usually 5 days.
3.What payment methods are accepted for DS64MB201SQE/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS64MB201SQE/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS64MB201SQE/NOPB?
DS64MB201SQE/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS64MB201SQE/NOPB 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 DS64MB201SQE/NOPB?
For technical support, including DS64MB201SQE/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS64MB201SQE/NOPB requirements.
6.How does Aetrix verify that DS64MB201SQE/NOPB is sourced from the original manufacturer or authorized distributors?
All DS64MB201SQE/NOPB 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 DS64MB201SQE/NOPB meets industry standards.
7.What is the process for return or replacement of DS64MB201SQE/NOPB?
All DS64MB201SQE/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with DS64MB201SQE/NOPB, 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 DS64MB201SQE/NOPB part is unused and in its original packaging.
Return procedure for DS64MB201SQE/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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