JMS580 - USB 3.1 Gen2 to SATA 6Gb/s Bridge | JMicron
部品番号: JMS580 ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $3.2 | $3.20 |
| 10 | $2.88 | $28.80 |
| 100 | $2.55 | $255.00 |
| 500 | $2.3 | $1,150.00 |
| 1,000 | $2.05 | $2,050.00 |
JMS580 概要
A bridge controller is a protocol-conversion IC that sits between two different bus standards, translating transaction-level commands so devices on either side can communicate transparently. Within the storage semiconductor hierarchy, the JMS580 belongs to the class of USB-to-SATA bridge ICs, which are themselves part of the broader peripheral controller and storage interface IC category used across external drives, docks, and adapters.
Key features include native support for the USB Attached SCSI Protocol (UASP), which substantially elevates command throughput versus legacy Bot (Bulk-Only Transport), and TRIM command pass-through for SSDs, preserving long-term NAND write performance in external enclosures. The 10Gbps USB 3.1 Gen 2 link allows fast SATA SSDs to be nearly fully utilized at the interface level, and JMicron notes the single-chip solution saves cost, PCB board space, and development time for storage device developers.
Architecturally, the JMS580 integrates USB 3.1 Gen 2 PHY and link layers, a SATA 6Gb/s controller, and protocol translation firmware handling SCSI/ATA command conversion, UASP queuing, and TRIM forwarding. JMicron's peripheral portfolio spans USB 3.1 Gen 2, Gen 1, USB 2.0, and FireWire, supporting single-bay, dual-bay, and multi-bay drive products, Blu-ray/DVD players, and NAS devices with RAID capabilities.
Typical applications include external USB-C/USB 3.1 hard drive and SSD enclosures, USB-to-SATA adapter cables and dongles, docking stations, and multi-bay arrays where the JMS580 is paired with the JMB575 SATA port multiplier to connect up to five drives to a single USB host.
A key design consideration is that real-world throughput is bounded by the slower of the USB link and the drive's SATA interface; HDDs rarely exceed 250 MB/s, so full 10Gbps benefit is only visible with SATA SSDs. Firmware for UASP and TRIM behavior should be validated against the host OS before production.
This page synthesizes distributor data, verified JMicron datasheet content, drop-in alternative candidates, and practical design notes not found in the manufacturer datasheet alone.
ドロップイン代替品: JMS580 — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
クイック比較ツール — 並列比較する代替部品を選択:
JMS578
✅ ドロップイン📋 参考代替品（カタログ未掲載）
JMS567
✅ ドロップイン📋 参考代替品（カタログ未掲載）
ASM235CM
✅ ドロップイン📋 参考代替品（カタログ未掲載）
ASM1153E
✅ ドロップイン📋 参考代替品（カタログ未掲載）
RTL9210B-CG
✅ ドロップイン📋 参考代替品（カタログ未掲載）
VL716
✅ ドロップイン📋 参考代替品（カタログ未掲載）
JMS580 仕様
| 機能 | USB 3.1 Gen 2 to SATA bridge controller |
| Upstream Interface | USB 3.1 Gen 2 |
| USB Data Rate | Up to 10 Gbps |
| Downstream Interface | SATA 6Gb/s |
| SATA Compliance | SATA 6Gb/s specification |
| UASP Support | Yes (USB Attached SCSI Protocol) |
| TRIM Support | Yes (for SSD) |
| Compatible Devices | SATA HDD and SSD |
| Backward USB Compatibility | USB 3.1 Gen 1, USB 2.0 hosts |
| 実装タイプ | Surface Mount |
| Application | External HDD/SSD enclosures, USB-to-SATA adapters, docking stations |
JMS580 standard ピン配置ガイド
JMS580 (standard パッケージ) のピン配置。 ピン番号、機能、接続図はメーカーのデータシートで定義されています。正確なフットプリントとはんだ付けのガイドラインについては、データシートを参照してください。
詳細なピン配置データはありません: JMS580.
詳細は データシート をご参照ください。
主な用途
JMS580 の用途: 6 件s: External SSD Enclosures (USB-C), USB-to-SATA Adapter Cables and Dongles, Multi-Bay Docking Stations with JMB575, Drive Duplicators and Forensic Imaging Tools, External Optical Drives (Blu-ray/DVD), NAS Expansion and JBOD Modules.
External SSD Enclosures (USB-C)
The JMS580 fits USB-C external SSD enclosures because its USB 3.1 Gen 2 upstream link at 10Gbps provides enough bandwidth to expose nearly the full throughput of a SATA 6Gb/s SSD, with UASP queuing reducing command latency versus legacy Bot mode. The bridge sits between the USB-C receptacle and the SATA connector, translating SCSI commands to ATA with TRIM forwarding so the SSD retains garbage-collection efficiency over time. With a fast SATA SSD, users typically see sustained transfers well above what a 5Gbps Gen 1 bridge allows; with a mechanical HDD, throughput is drive-limited at roughly 150-250 MB/s, so the 10Gbps link provides future-proofing rather than immediate gain. Bus-powered designs should budget the 5V rail for both the controller and the SSD.
おすすめ
USB-to-SATA Adapter Cables and Dongles
For short-run adapter cables and field-service dongles, the JMS580 offers a single-chip USB-to-SATA conversion path, which JMicron states saves cost, PCB board space, and development time versus discrete or multi-chip approaches. UASP support matters here: technicians imaging or wiping drives over USB get much higher command efficiency and can still issue ATA pass-through commands (secure erase, SMART) depending on firmware and host OS support. The compact QFN bridge allows very small adapter PCBs that fit inline in a cable shell, and USB 3.1 Gen 2 speed headroom ensures drive cloners and duplicators are not throttled by the interface. Firmware selection should be validated for ATA pass-through behavior before deployment.
おすすめ
Multi-Bay Docking Stations with JMB575
Multi-bay docks commonly pair the JMS580 with JMicron's JMB575 SATA port multiplier, as seen in commercial Type-C to 5-port SATA products. In this dual-chipset architecture the JMS580 provides the 10Gbps USB upstream and SATA 6Gb/s conversion, while the JMB575 integrates five independent SATA channels and a micro-processor supporting cascaded mode for up to five drives on one host. This lets backup appliances and drive-duplicator docks share a single USB-C cable. Designers must account for shared bandwidth: five drives contend for the single 10Gbps link, so simultaneous transfers are aggregated, not per-drive multiplied. Per-bay power switching and adequate 12V/5V supply capacity are essential for spinning HDDs.
おすすめ
Drive Duplicators and Forensic Imaging Tools
Drive duplicators and forensic imaging stations benefit from the JMS580's UASP implementation and SATA 6Gb/s compliance, which together minimize per-command overhead when reading drives sector-by-sector for hours at a time. Depending on firmware, ATA pass-through can expose secure-erase, HPA/DCO, and SMART data to host software - a capability users of drive-wiping toolchains specifically look for in USB-SATA bridges. The 10Gbps upstream keeps fast SATA SSD sources from being interface-limited, cutting imaging windows. Forensic use requires write-blocking at the firmware or application layer, so validation against the target OS and imaging software is mandatory before production, and bridge firmware revision should be locked and documented.
おすすめ
External Optical Drives (Blu-ray/DVD)
JMicron's bridge portfolio, including the JMS580 family, is used across external Blu-ray/DVD player products as noted in the company's storage portfolio overview. Optical drives use the SATA interface internally, and a USB 3.1 Gen 2 bridge provides ample headroom for Blu-ray data rates (typically well under 100 MB/s) while the USB link remains backward compatible with Gen 1 and USB 2.0 hosts in older laptops. UASP command handling improves buffer management for streaming reads, reducing seek stutter on high-speed BD media. The bridge's low external component count keeps the slim ODD adapter PCB within the tight mechanical envelope of a portable external burner enclosure.
おすすめ
NAS Expansion and JBOD Modules
Entry-level NAS expansion boxes and JBOD modules can use the JMS580 as the USB ingress bridge, cascaded into a JMB575 port multiplier to expose multiple SATA bays over one cable - a topology consistent with JMicron's stated support for single-bay, dual-bay, and multi-bay drives and NAS devices with RAID capabilities. The USB 3.1 Gen 2 10Gbps link gives JBOD products meaningful aggregate bandwidth for SSD bays, while UASP queuing keeps concurrent drive transactions efficient. Designers should implement per-bay LED status via GPIO and ensure the enclosure firmware handles drive hot-plug events cleanly. For RAID-critical deployments, verify that the host OS sees drives with correct ATA identity and TRIM forwarding per bay.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: JMS580 — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | JMS578 | JMS567 | ASM235CM | ASM1153E | RTL9210B-CG | VL716 |
|---|---|---|---|---|---|---|---|
| Brand | JMicron Technology Corporation | JMicron Technology Corporation | JMicron Technology Corporation | ASMedia Technology | ASMedia Technology | Realtek | VIA Labs |
| USB Link Speed | USB 3.1 Gen 2, 10 Gbps | USB 3.1 Gen 1, 5 Gbps | USB 3.1 Gen 1, 5 Gbps | USB 3.1 Gen 2, 10 Gbps | USB 3.1 Gen 1, 5 Gbps | USB 3.2 Gen 2, 10 Gbps | USB 3.1 Gen 2, 10 Gbps |
| SATA Interface | SATA 6Gb/s | SATA 6Gb/s | SATA 6Gb/s | SATA 6Gb/s | SATA 6Gb/s | SATA 6Gb/s / NVMe | SATA 6Gb/s |
| UASP Support | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| TRIM Support | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Pin-to-Pin Compatibility with JMS580 | - | No (respire required) | No | No | No | No | No |
主な差別化要因
- Native 10Gbps USB 3.1 Gen 2 upstream （vs ASM1153E)
- Single-chip SATA-only bridge simplicity （vs RTL9210B-CG)
- Proven JMB575 cascade ecosystem （vs ASM235CM)
設計ノート
Bus-powered enclosures must budget current for both the JMS580 and the attached SATA device. A 2.5-inch HDD can draw up to ~900 mA spin-up current at 5V, and USB-C Gen 2 ports guarantee only 900 mA at 5V (4.5 W) at default; many designs add a supercapacitor or delay HDD spin-up after enumeration to stay within budget, or negotiate higher USB-C current. Estimated: 5V input to 3.3V rail via a buck converter at ~90% efficiency keeps dissipation low; an LDO would burn (5V-3.3V) x I - unacceptable above ~300 mA.
The USB 3.1 Gen 2 10Gbps link requires controlled-impedance (90 ohm differential) routing with length matching within 5 mils on the SuperSpeed pair and AC coupling caps placed per the USB spec near the receptacle. Keep the USB pair away from SATA lines and switching-regulator inductors. For USB-C receptacles, the SuperSpeed lanes may arrive on either CC orientation, so confirm your board uses the correct lane mapping/mux for a non-multiplexed bridge like the JMS580 - most low-cost enclosure designs fix orientation with a USB-C legacy receptacle rather than a full-featured one.
Firmware selection determines pass-through behavior: not all JMS580 firmware builds expose ATA pass-through needed for secure erase, SMART, and HPA/DCO handling. Before mass production, flash the intended firmware revision and validate TRIM forwarding and UASP enumeration on all target host OSes (Windows, macOS, Linux kernels treat UASP bridges differently). Also verify board-level ESD protection on the USB-C VBUS and SuperSpeed lines, as field cable handling is the top enclosure failure mode.
コンプライアンス情報
Compliance data not present in retrieved sources; consult JMicron product documentation for RoHS/REACH declarations.