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Broadcom Limited ABCU-5741RZ
- Part No.:
- ABCU-5741RZ
- Manufacturer:
- Broadcom Limited
- Category:
- Fiber Optic Transceiver Modules
- Package:
- Datasheet:
-
ABCU-5741RZ.pdf
- Description:
- TXRX OVER CAT 5 CBL 1.25GBD
- Quantity:
- Payment:
- Shipping:
Inventory:1,244
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Product details
Overview
ABCU-5741RZ from Broadcom (formerly Avago Technologies) is a 10/100/1000BASE-T SFP electrical transceiver supporting full-duplex 1.25 Gb/s operation over Category 5 twisted-pair cable using 5-level PAM signaling. It integrates SerDes, DSP, and magnetics in an industry-standard SFP form factor with SGMII host interface and RX_LOS disabled. Designed for switch-to-switch and backplane Gigabit Ethernet links up to 100 m.
For engineers reviewing the ABCU-5741RZ datasheet, pinout, applications, or equivalent options, this page delivers verified electrical specs, validated 20-pin SFP interface mapping, confirmed SGMII host compatibility, industrial-grade thermal range (-5~70 °C), and two field-validated alternative transceivers for 1000BASE-T SFP deployments.
Technical Context
The ABCU-5741RZ implements IEEE 802.3:2005-compliant auto-negotiation (Clause 28 for twisted pair, Clause 37 for 1000BASE-X) and supports 10/100/1000BASE-T operation via SGMII interface. Its internal ASIC includes 32×16-bit registers accessible via 2-wire serial EEPROM protocol (I²C-compatible, address 0x56), enabling full PHY control including master/slave configuration, pause frame advertisement, and link status monitoring.
It features integrated transmitter bias resistors and coupling capacitors, eliminating external passive components on the host board. The module uses internally ac-coupled, 100 Ω differential TD± and RD± interfaces compatible with CML/LVPECL voltage swings (500–2400 mV diff. input; 370–2000 mV diff. output), with RX_LOS pin grounded via 100 Ω resistor per specification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | 1.25 Gb/s - Matches Gigabit Ethernet line rate; enables full-duplex 1000 Mbps throughput over Cat 5 cable. |
| Supply Voltage | +3.3 V ±5% - Single rail operation; requires MSA-compliant power filtering (1 μH inductors, 0.1–10 μF caps). |
| Operating Temp | -5 °C to +70 °C - Commercial temperature grade; validated for stable operation across this range. |
| Power Dissipation | 1100–1150 mW - Dictates thermal management requirements on host board; peak current 370 mA. |
| Interface Standard | SGMII - Enables direct connection to MAC/SerDes without external PHY; eliminates MII/GMII pin count overhead. |
| Cable Support | Shielded & unshielded Cat 5 - No external magnetics required; custom RJ-45 connector with integrated magnetics included. |
| Link Distance | Up to 100 m - Complies with IEEE 802.3 clause 40; validated at 1.25 Gb/s with PAM-5 modulation. |
Pinout & Package
ABCU-5741RZ uses the standard 20-pin SFP pluggable module package (MSA-compliant mechanical outline). Pin assignment follows SFP Multi-Source Agreement with specific signal routing for SGMII host interface and disabled RX_LOS functionality.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 17, 20 | VEET | Transmitter ground - Dedicated low-impedance return path for TX circuitry; three pins reduce ground bounce. |
| 9, 10, 11, 14 | VEER | Receiver ground - Isolated ground plane for RX analog section; four pins ensure noise isolation from TX. |
| 15 | VCCR | Receiver power supply - +3.3 V ±5% dedicated rail for SerDes receiver; decoupling required per MSA. |
| 16 | VCCT | Transmitter power supply - +3.3 V ±5% dedicated rail for PAM-5 driver; separate from VCCR to minimize crosstalk. |
| 12, 13 | RD−, RD+ | Differential receiver outputs - AC-coupled 100 Ω CML/LVPECL outputs; terminated internally; host must provide 100 Ω diff. load. |
| 18, 19 | TD+, TD− | Differential transmitter inputs - AC-coupled 100 Ω CML/LVPECL inputs; internal termination eliminates host-side caps/resistors. |
| 3 | TX_DISABLE | Transceiver reset control - High or open = reset state; falling edge initiates auto-negotiation (t_on_rst = 300 ms). |
| 4, 5 | MOD_DEF2, MOD_DEF1 | I²C serial ID interface - Clock and data lines for EEPROM read/write (AT24C01A-compatible); require 4.7–10 kΩ pull-up on host. |
| 6 | MOD_DEF0 | Module presence detect - Grounded internally via 100 Ω resistor; signals module insertion to host controller. |
| 8 | LOS | RX_LOS disabled - Internally grounded via 100 Ω resistor; not functional as loss-of-signal indicator per datasheet Note 4. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Magnetics + RJ-45 | Eliminates need for external magnetics transformer and discrete RJ-45 jack; reduces BOM count and PCB area. |
| SGMII Host Interface | Reduces MAC-to-PHY pin count by >50% vs. GMII; enables compact switch ASIC integration with minimal SerDes lanes. |
| Auto-Negotiation Compliance | Fully implements IEEE 802.3 Clause 28 (twisted pair) and Clause 37 (1000BASE-X); supports 10/100/1000 speed and full/half duplex negotiation. |
| Hot-Plug Capable | Three-stage pin sequencing (ground → power → signal) ensures ESD-safe insertion/removal while host is powered. |
| RoHS-6 Compliant | Meets lead, mercury, hexavalent chromium, PBB, PBDE limits; exempted high-melting solder used on connector. |
Applications
| Switch-to-Switch Interface | Switched Backplane |
|---|---|
Use Scenario: Interconnecting Gigabit Ethernet switches in data center top-of-rack or aggregation layers using copper interconnects. IC Role / Device Role / Timing Role: Electrical transceiver bridging SGMII SerDes on switch ASIC to Cat 5 cabling; handles PAM-5 encoding/decoding and auto-negotiation. Use Value: Enables cost-effective, low-latency 1 Gbps links without optical transceivers; supports 100 m reach with plug-and-play SFP compatibility. | Use Scenario: High-speed interconnect between line cards and fabric modules in modular enterprise switches. IC Role / Device Role / Timing Role: SFP-based PHY layer device converting SGMII signals to robust 1000BASE-T physical layer for backplane traces. Use Value: Provides deterministic 1.25 Gb/s full-duplex operation with built-in EMI shielding and hot-swap support for carrier-grade reliability. |
| File Server Interface | Industrial Control Network |
Use Scenario: Direct-attached storage (DAS) or NAS appliance connecting to core network via copper uplink. IC Role / Device Role / Timing Role: Gigabit Ethernet PHY transceiver implementing IEEE 802.3 compliance for reliable file transfer over unshielded Cat 5. Use Value: Delivers stable 1000 Mbps throughput with auto-negotiation fallback to 100/10 Mbps; supports legacy infrastructure reuse. | Use Scenario: Factory-floor network linking PLCs, HMIs, and I/O modules in harsh environments requiring EMI resilience. IC Role / Device Role / Timing Role: Ruggedized SFP transceiver providing shielded 1000BASE-T connectivity with certified ESD immunity (15 kV air, 8 kV contact). Use Value: Ensures uptime in electrically noisy settings via metal housing, multi-point grounding, and radiated immunity to 10 V/m (80–1000 MHz). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 1000BASE-T SFP electrical transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ABCU-5740RZ | Identical package, pinout, and SGMII interface; differs only in RX_LOS disabled (same as ABCU-5741RZ) but lacks SGMII support per ordering table - operates in standard 1000BASE-T mode only. | Not suitable for SGMII host systems; requires GMII/MII interface and external PHY logic. | Select ABCU-5741RZ when SGMII host interface is required; ABCU-5740RZ only for legacy parallel PHY designs. |
| AFBR-5710Z | Optical SFP transceiver (850 nm VCSEL); requires fiber cabling; different power profile (3.3 V, ~300 mW); no integrated magnetics or RJ-45. | Used for longer-reach (>100 m), EMI-isolated, or secure point-to-point links where copper is impractical. | Choose AFBR-5710Z for fiber infrastructure; ABCU-5741RZ for cost-sensitive, short-reach copper deployments with existing Cat 5 plant. |
Compared with ABCU-5740RZ, ABCU-5741RZ adds native SGMII host support-reducing system complexity and component count-while AFBR-5710Z provides fiber-based isolation and extended reach at the cost of cabling infrastructure change and optical alignment requirements.
Availability
ABCU-5741RZ is available at Aetrix Electronics and suitable for switch-to-switch interconnects, switched backplane architectures, and industrial Ethernet gateways requiring stable component supply, long-term lifecycle support, and MSA-compliant SFP interoperability.
Supply support for ABCU-5741RZ 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
Broadcom Inc. (acquired Avago Technologies in 2016) is a global leader in semiconductor solutions for wired infrastructure, networking, and broadband communications.
The ABCU-57xxxxZ family was designed specifically for cost-optimized, high-density 1000BASE-T SFP deployments in enterprise switching and industrial networking, emphasizing SGMII integration, hot-plug reliability, and Cat 5 cable compatibility.
FAQ
What is the operating temperature range for ABCU-5741RZ?
ABCU-5741RZ is rated for commercial temperature operation from -5 °C to +70 °C. This range is validated per the Recommended Operating Conditions table in the datasheet and applies to all electrical characteristics including power dissipation (1100–1150 mW), auto-negotiation timing, and SGMII signal integrity. It is not rated for industrial -40 °C to +85 °C operation - that capability is reserved for variants like ABCU-5741ARZ.
Does ABCU-5741RZ support auto-negotiation, and which IEEE clauses does it implement?
Yes, ABCU-5741RZ fully supports IEEE 802.3:2005 auto-negotiation per Clause 28 (for twisted-pair 1000BASE-T) and Clause 37 (for 1000BASE-X). It advertises 10/100/1000BASE-T speeds and full/half duplex modes via its internal PHY registers (Register 4), and completes negotiation in ≤300 ms after TX_DISABLE de-assertion. Auto-negotiation is enabled by default and may be disabled via software register control.
What is the function of the LOS pin on ABCU-5741RZ, and how is it configured?
On ABCU-5741RZ, the LOS (pin 8) is explicitly disabled per ordering information and datasheet Note 4. It is internally grounded via a 100 Ω resistor and serves no loss-of-signal detection function. This distinguishes it from ABCU-5731RZ (RX_LOS enabled), where LOS acts as a link-up/link-down indicator. No external pull-up or monitoring is required for ABCU-5741RZ's LOS pin.
Can ABCU-5741RZ be used with standard SFP cages and host controllers?
Yes, ABCU-5741RZ complies fully with the SFP Multi-Source Agreement (MSA) mechanical, electrical, and thermal specifications. It mates with standard SFP cages, supports hot-plug insertion/removal with 3-stage pin sequencing, and communicates via the standardized 2-wire serial ID interface (MOD_DEF0–2) using AT24C01A-compatible protocol. Host firmware must interpret its EEPROM contents (address A0) and support SGMII SerDes signaling.
What are the key differences between ABCU-5741RZ and ABCU-5741ARZ?
ABCU-5741RZ and ABCU-5741ARZ share identical functionality - SGMII interface, RX_LOS disabled, and same pinout - but differ in temperature rating: ABCU-5741RZ is commercial grade (-5~70 °C), while ABCU-5741ARZ is industrial grade (-40~85 °C). The latter undergoes extended burn-in and characterization across the wider range, with validated performance for power, timing, and ESD immunity at temperature extremes.
ABCU-5741RZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Broadcom Limited
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Data Rate:
- 1.25Gbd
- Wavelength:
- -
- Applications:
- Switch Interfacing
- Voltage - Supply:
- 3.3V
- Connector Type:
- RJ45
- Mounting Type:
- Pluggable, SFP
ABCU-5741RZ FAQ
1.How can I place an order for ABCU-5741RZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ABCU-5741RZ 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 ABCU-5741RZ reliable?
The price and inventory of ABCU-5741RZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ABCU-5741RZ is usually 5 days.
3.What payment methods are accepted for ABCU-5741RZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ABCU-5741RZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ABCU-5741RZ?
ABCU-5741RZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ABCU-5741RZ 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 ABCU-5741RZ?
For technical support, including ABCU-5741RZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ABCU-5741RZ requirements.
6.How does Aetrix verify that ABCU-5741RZ is sourced from the original manufacturer or authorized distributors?
All ABCU-5741RZ 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 ABCU-5741RZ meets industry standards.
7.What is the process for return or replacement of ABCU-5741RZ?
All ABCU-5741RZ units undergo pre-shipment inspection (PSI). If there is an issue with ABCU-5741RZ, 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 ABCU-5741RZ part is unused and in its original packaging.
Return procedure for ABCU-5741RZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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