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Broadcom Limited ABCU-5740ARZ
- Part No.:
- ABCU-5740ARZ
- Manufacturer:
- Broadcom Limited
- Category:
- Fiber Optic Transceiver Modules
- Package:
- Datasheet:
-
ABCU-5740ARZ.pdf
- Description:
- TXRX
- Quantity:
- Payment:
- Shipping:
Inventory:2,181
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Product details
Overview
ABCU-5740ARZ from Broadcom (formerly Avago Technologies) is a 10/100/1000BASE-T SFP electrical transceiver operating at 1.25 Gb/s over Category 5 twisted-pair cable, supporting industrial temperature range (−40 °C to +85 °C), with RX_LOS disabled and single +3.3 V supply. It integrates SerDes/DSP, magnetics, and RJ-45 connector for direct copper Gigabit Ethernet connectivity in switch-to-switch and backplane interfaces.
For engineers reviewing the ABCU-5740ARZ datasheet, pinout, applications, or equivalent options, this page delivers verified technical context, validated 20-pin SFP interface mapping, confirmed industrial-grade thermal operation, and real-world alternatives for 1000BASE-T SFP electrical transceiver selection in embedded networking hardware.
Technical Context
The ABCU-5740ARZ implements IEEE 802.3:2005-compliant 1000BASE-T physical layer using 5-level PAM signaling over unshielded/shielded twisted pair. Its integrated SerDes accepts CML/LVPECL differential inputs (500–1200 mV diff.) and delivers ac-coupled 100 Ω differential outputs (370–2000 mV diff.) compatible with host SerDes receivers.
Auto-negotiation per Clause 28 (twisted pair) and Clause 37 (1000BASE-X) is enabled by default; RX_LOS is internally grounded via 100 Ω resistor and unused. The module complies with SFP MSA, supports hot-plug with 3-stage pin sequencing (ground → power → signal), and embeds EEPROM (AT24C01A-compatible) for serial ID per SFP MSA Table 10.
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 |
| Operating Temp | −40 °C to +85 °C - qualified for industrial environments; no derating required across full range |
| Supply Voltage | +3.3 V ±5% - single rail simplifies power design; VCCT and VCCR pins are separate but identical |
| Power Dissipation | 1100–1150 mW - defines thermal management requirements on host board; max current 370 mA |
| Link Distance | Up to 100 m - compliant with IEEE 802.3 clause 40; achievable over standard Cat 5 UTP/STP |
| RX_LOS Function | Disabled - LOS pin grounded internally; not used as link-up indicator or signal detector |
| Interface Standard | SFP MSA-compliant 20-pin edge connector - ensures mechanical and electrical interoperability with standard SFP cages |
Pinout & Package
ABCU-5740ARZ uses the industry-standard Small Form Pluggable (SFP) package (dimensions per Figure 6), with 20-pin card-edge PCB interface and integrated RJ-45 jack with magnetics. Package is metal-shrouded with UL 94V-0 flame-retardant plastic housing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 17, 20 | VEET | Transmitter ground reference - three dedicated pins minimize ground bounce in high-speed TX path |
| 2 | TX_FAULT | Transmitter fault indicator - tied low via 100 Ω; not actively used in 1000BASE-T mode |
| 3 | TX_DISABLE | Reset control input - high or open forces ASIC reset; pulled up internally with 4.7 kΩ |
| 4, 5 | MOD_DEF2, MOD_DEF1 | 2-wire serial ID clock/data - connect to host I²C bus; require 4.7–10 kΩ pull-ups per MSA |
| 6 | MOD_DEF0 | Module presence detect - grounded internally via 100 Ω; signals insertion to host |
| 8 | LOS | Loss of Signal - grounded via 100 Ω; inactive in ABCU-5740ARZ due to RX_LOS disabled configuration |
| 9, 10, 11, 14 | VEER | Receiver ground reference - four dedicated pins ensure clean return path for RD+/− |
| 12, 13 | RD−, RD+ | Differential receiver outputs - ac-coupled, 100 Ω terminated internally; deliver 370–2000 mV diff. swing |
| 15 | VCCR | Receiver power supply - +3.3 V ±5%; decoupling per Figure 5 required (10 μF + 0.1 μF) |
| 16 | VCCT | Transmitter power supply - +3.3 V ±5%; independent from VCCR but same voltage spec |
| 18, 19 | TD+, TD− | Differential transmitter inputs - ac-coupled, accept 500–1200 mV diff. (optimal); CML/LVPECL compatible |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Magnetics + RJ-45 | Eliminates external magnetics and connector footprint; reduces BOM count and layout complexity |
| Hot-Plug Support | 3-stage pin sequencing (GND → VCC → signal) prevents ESD damage and ensures safe insertion/removal under power |
| Onboard EEPROM | AT24C01A-compatible serial ID memory stores vendor, model, date code, and compliance data per SFP MSA |
| Auto-Negotiation Engine | Fully implements IEEE 802.3 Clause 28/37; negotiates speed/duplex with link partner without host intervention |
| EMI-Optimized Housing | Metal shield + internal filtering meets FCC Part 15 Class B, EN55022 Class B, and VCCI Class 1 emissions limits |
Applications
| Switch-to-Switch Interface | Industrial Backplane Link |
|---|---|
Use Scenario: Connecting two managed Ethernet switches via copper patch cables in factory automation cabinets. IC Role / Device Role / Timing Role: Electrical PHY transceiver bridging MAC-layer SerDes to 1000BASE-T physical medium. Use Value: Enables plug-and-play Gigabit Ethernet without optical modules; supports −40 °C cold start and 85 °C cabinet ambient. | Use Scenario: High-density modular PLC chassis where line cards communicate over backplane traces routed as Cat 5-equivalent differential pairs. IC Role / Device Role / Timing Role: SFP-form-factor PHY providing 1.25 Gb/s SerDes-to-copper conversion with deterministic latency. Use Value: Replaces custom PHY designs with MSA-compliant module; eliminates magnetics layout risk and improves signal integrity margin. |
| Embedded Network Appliance | Network-Attached Storage (NAS) Controller |
Use Scenario: Compact firewall or SD-WAN edge device requiring ruggedized copper uplink in limited-space enclosure. IC Role / Device Role / Timing Role: Industrial-temperature SFP transceiver interfacing SoC SerDes to external RJ-45 port. Use Value: Single-chip integration of PHY, magnetics, and connector meets space and reliability constraints; RoHS-6 compliant for global deployment. | Use Scenario: Multi-bay NAS unit with dual Gigabit copper ports for failover and link aggregation in SMB server rooms. IC Role / Device Role / Timing Role: Full-duplex 1000BASE-T transceiver enabling jumbo frame support and low-latency storage traffic. Use Value: Delivers consistent 1000 Mbps throughput over 100 m Cat 5e; supports auto-negotiation with legacy switches and NAS clients. |
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 | Commercial temp range (−5 °C to +70 °C); otherwise identical electrical specs and pinout | Not rated for industrial environments; unsuitable for outdoor enclosures or uncooled control panels | Select ABCU-5740RZ only for cost-sensitive indoor telecom or enterprise gear with controlled ambient. |
| ABCU-5741ARZ | Supports SGMII host interface (vs. GMII/MII in ABCU-5740ARZ); includes SGMII RX_LOS disable | Required when host SoC uses SGMII SerDes instead of standard GMII; adds jitter tolerance for chip-to-module links | Choose ABCU-5741ARZ if your MAC implements SGMII; otherwise ABCU-5740ARZ provides optimal GMII compatibility. |
Compared with ABCU-5740RZ, ABCU-5740ARZ adds industrial temperature qualification without changing power, timing, or interface behavior; compared with ABCU-5741ARZ, it omits SGMII-specific registers and timing, reducing firmware overhead for GMII-based systems.
Availability
ABCU-5740ARZ is available at Aetrix Electronics and suitable for industrial Ethernet switches, factory automation controllers, and ruggedized network appliances requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for ABCU-5740ARZ 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-effective, high-reliability 1000BASE-T SFP electrical interconnects in space-constrained and thermally demanding embedded systems.
FAQ
What is the operating temperature range of the ABCU-5740ARZ?
The ABCU-5740ARZ is rated for industrial temperature operation from −40 °C to +85 °C. This specification is validated per Absolute Maximum Ratings and Recommended Operating Conditions tables in the official datasheet. Unlike commercial variants (e.g., ABCU-5740RZ), the ABCU-5740ARZ undergoes extended thermal stress screening to ensure reliable performance across this full range without derating.
Does the ABCU-5740ARZ support auto-negotiation?
Yes, the ABCU-5740ARZ fully supports IEEE 802.3:2005 auto-negotiation per Clause 28 (twisted pair) and Clause 37 (1000BASE-X). It automatically negotiates speed (10/100/1000 Mbps) and duplex mode with the link partner. Auto-negotiation is enabled by default and can be disabled via register 0 bit 0.12; restart is triggered by writing to bit 0.9.
What is the function of the LOS pin on the ABCU-5740ARZ?
On the ABCU-5740ARZ, the LOS (pin 8) is disabled per ordering code "40" and internally grounded via a 100 Ω resistor. It does not function as a loss-of-signal detector or link-up indicator. This differs from ABCU-5730ARZ/ABCU-5731ARZ models where LOS serves as a 1000BASE-T link status output.
Can the ABCU-5740ARZ be used with SGMII host interfaces?
No - the ABCU-5740ARZ is configured for GMII/MII host interface operation. For SGMII compatibility, use ABCU-5741ARZ, which includes SGMII-specific register maps, timing, and RX_LOS disable logic. Attempting to drive ABCU-5740ARZ with SGMII signals may result in link failure or undefined behavior due to incompatible SerDes framing.
Is an external EEPROM required for ABCU-5740ARZ operation?
No - the ABCU-5740ARZ contains an onboard AT24C01A-compatible EEPROM that stores SFP MSA-compliant serial ID data (vendor name, part number, date code, compliance info). Host systems read this via MOD_DEF1/MOD_DEF2 (I²C) pins; no external memory is needed for basic operation or identification.
ABCU-5740ARZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Broadcom Limited
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Data Rate:
- 1.25Gbps
- Wavelength:
- -
- Applications:
- Switch Interfacing
- Voltage - Supply:
- 3.3V
- Connector Type:
- RJ45
- Mounting Type:
- Pluggable, SFP
ABCU-5740ARZ FAQ
1.How can I place an order for ABCU-5740ARZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ABCU-5740ARZ 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-5740ARZ reliable?
The price and inventory of ABCU-5740ARZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ABCU-5740ARZ is usually 5 days.
3.What payment methods are accepted for ABCU-5740ARZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ABCU-5740ARZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ABCU-5740ARZ?
ABCU-5740ARZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ABCU-5740ARZ 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-5740ARZ?
For technical support, including ABCU-5740ARZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ABCU-5740ARZ requirements.
6.How does Aetrix verify that ABCU-5740ARZ is sourced from the original manufacturer or authorized distributors?
All ABCU-5740ARZ 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-5740ARZ meets industry standards.
7.What is the process for return or replacement of ABCU-5740ARZ?
All ABCU-5740ARZ units undergo pre-shipment inspection (PSI). If there is an issue with ABCU-5740ARZ, 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-5740ARZ part is unused and in its original packaging.
Return procedure for ABCU-5740ARZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ABCU-5740ARZ Tags
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AFBR-5972EZ
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AFBR-5803ATQZ
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