USB2227-NU-05 USB 2.0 Flash Media Controller | Microchip
부품 번호: USB2227-NU-05 ✓ 활성USB2227-NU-05 개요
A flash media controller is a specialized interface integrated circuit that bridges a USB host and one or more removable flash-card standards. It belongs to the product hierarchy of interface controller, specialized interface IC, USB interface controller, and semiconductor. Its purpose is to translate USB traffic and card signals while controlling the electrical supply to supported media through integrated power field-effect transistors.
The principal verified features are USB 2.0 support, fourth-generation controller architecture, integrated card power FETs, support for five identified flash-media families, and a 128-pin VTQFP package. The SmartMedia and xD interfaces cover two legacy card families, while Memory Stick, High Speed Memory Stick, and Memory Stick PRO cover three related formats. These capabilities make the part relevant to legacy readers, portable media systems, and specialized data-transfer equipment.
Technical implementation depends on the specific USB host and firmware platform. The integrated card power FETs reduce the need for separate switched power circuitry for supported media, while the large 128-pin package provides numerous card, USB, control, and power connections. Because detailed pin assignments, voltage limits, timing characteristics, and clock requirements are not present in the supplied verification data, those values must be confirmed in the manufacturer datasheet before schematic capture.
Typical uses include USB card readers, multifunction peripherals, portable media players, industrial data loggers, and legacy embedded systems that accept one or more of the supported card formats. In a reader design, the USB host controller communicates with the USB2227, which then manages command exchange and card-power sequencing for the attached flash medium. Firmware must support the physical connector, media protocol, and target operating system.
The primary design consideration is package and protocol verification. The 14 x 14 mm VTQFP requires a fine-pitch land pattern, careful escape routing, and thermal-aware power distribution. Designers should also confirm the exact supported card voltage, insertion-detection method, and USB host interface requirements rather than inferring them from the broad USB 2.0 designation.
This page consolidates the verified manufacturer and distributor information with package constraints, sourcing guidance, replacement considerations, and practical integration notes. It also distinguishes verified attributes from missing technical data so engineers can identify which details still require confirmation in the USB2227 documentation.
드롭인 대체품: USB2227-NU-05 — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: USB2227-NU-05 (동일 폼 팩터 및 풋프린트) — 차이점: Integrated Card Power FETs.
USB2227-NU-09
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
USB2228-NU-05
✅ 드롭인가격 문의
데이터시트 보기 →USB2251-NU-05
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
USB2227-NU-05 사양
| Product Type | USB 2.0 flash media controller |
| Controller Generation | 4th generation |
| USB Interface | USB 2.0 |
| Integrated Card Power FETs | Yes |
| SmartMedia Support | Supported |
| xD Picture Card Support | Supported |
| Memory Stick Support | Supported |
| High Speed Memory Stick Support | Supported |
| Memory Stick PRO Support | Supported |
| Package Type | 128-pin VTQFP |
| Package Dimensions | 14 x 14 mm |
| 실장 유형 | Surface mount |
USB2227-NU-05 14 x 14 mm 핀 구성 가이드
USB2227-NU-05(14 x 14 mm 패키지)의 핀 구성입니다. 핀 번호, 기능, 연결 다이어그램은 제조사 데이터시트에 정의되어 있습니다. 정확한 풋프린트와 솔더링 지침은 해당 문서를 참조하십시오.
다음에 대한 상세 핀아웃 데이터 없음: USB2227-NU-05.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
USB2227-NU-05 적합 용도: 6 애플리케이션s: Legacy USB Flash Card Reader, Multiformat Portable Media Player, Industrial Flash Data Transfer Terminal, Multifunction USB Peripheral, Embedded Service and Diagnostics Console, USB Media Adapter and Docking Product.
Legacy USB Flash Card Reader
The USB2227-NU-05 fits a legacy USB 2.0 reader designed to accept SmartMedia, xD Picture Card, Memory Stick, High Speed Memory Stick, and Memory Stick PRO media. Its verified fourth-generation controller architecture and integrated card power FETs provide a single-chip interface path between a USB host and the supported card connectors. Using a purpose-built controller avoids reproducing the command protocols and power-switching functions across several discrete devices. The 128-pin VTQFP does require careful escape routing and a stable, noise-conscious implementation. Firmware and host-driver support for each media family must be included, while the manufacturer's package drawing and electrical limits remain the controlling references for the final design.
추천
Multiformat Portable Media Player
USB2227-NU-05 is suitable for a portable media player that must exchange files across several removable flash formats. The verified support list spans SmartMedia, xD, Memory Stick, High Speed Memory Stick, and Memory Stick PRO, allowing one controller platform to serve multiple legacy media ecosystems. The integrated card power FETs can simplify the switched supply arrangement for supported cards, although each connector still needs correct routing and protection. Because the controller is packaged in a 14 x 14 mm 128-pin VTQFP, board-area planning is essential. Firmware must identify the inserted card correctly and provide safe insertion, removal, and power-sequencing behavior for all formats used by the finished player.
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Industrial Flash Data Transfer Terminal
The USB2227-NU-05 can serve as the removable-media interface in an industrial data-transfer terminal connected to a USB 2.0 host. Supporting multiple flash formats may help field technicians move configuration, diagnostic, or operational files without carrying several dedicated readers. The controller's integrated card power FETs reduce the number of separate power-control elements needed for supported media, while the 128-pin VTQFP exposes the numerous interface and control signals. Engineering teams should verify whether legacy formats satisfy their use case rather than selecting it solely for media count. Environmental qualification, ESD strategy, connector mechanics, firmware update policy, and long-term card availability also require separate validation for industrial deployment.
추천
Multifunction USB Peripheral
USB2227-NU-05 fits a multifunction peripheral that combines a USB host port with removable flash-card access. The USB 2.0 controller interface can support card-reader functions, configuration exchange, and firmware import when the host software and USB descriptors are designed accordingly. Its verified support for five card families provides broad compatibility with legacy media, and the integrated card power FETs help consolidate the power path. The 128-pin VTQFP requires careful layout, particularly around USB data routing and switching-current connections. Engineers should compare this dedicated controller with a general-purpose USB microcontroller, especially when only one or two card formats are required, because the dedicated part offers broader media coverage but a larger package.
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Embedded Service and Diagnostics Console
The USB2227-NU-05 may be used in an embedded service console that accepts flash media for log retrieval, firmware staging, or configuration transfer. Its broad support for SmartMedia, xD, Memory Stick, High Speed Memory Stick, and Memory Stick PRO can simplify compatibility with field technicians' existing media. The integrated card power FETs are relevant when the system must apply and remove card power safely, although the datasheet's exact sequencing and voltage requirements must be confirmed. A 128-pin, 14 x 14 mm VTQFP increases layout and assembly complexity relative to a compact microcontroller. For new low-volume products, engineers should therefore verify that support for multiple legacy card standards is commercially necessary before committing to this controller.
추천
USB Media Adapter and Docking Product
USB2227-NU-05 can form the core of a media adapter that connects legacy flash cards to a modern USB 2.0 host. The dedicated controller supports the verified SmartMedia, xD, Memory Stick, High Speed Memory Stick, and Memory Stick PRO formats and incorporates the card power FETs into the controller solution. This permits a compact adapter design without implementing every media protocol and power path separately. The engineering trade-off is the 128-pin VTQFP footprint, which requires fine-pitch routing and careful thermal design compared with a general-purpose USB hub or card-reader controller. Prototype validation should cover insertion tolerance, card detection, sustained transfer behavior, ESD exposure, and operating compatibility with the intended host systems before production release.
추천
추천 제품 요약
엔지니어링 참조 데이터: USB2227-NU-05 — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | USB2227-NU-09 | USB2228-NU-05 | USB2251-NU-05 |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 128-pin VTQFP (14 x 14 mm) | 128-pin VTQFP (14 x 14 mm) | 128-pin VTQFP (14 x 14 mm) | 128-pin VTQFP (14 x 14 mm) |
| Product Type | Fourth-generation USB 2.0 flash media controller | USB2227-family USB 2.0 flash media controller | Fourth-generation USB 2.0 flash media controller | USB 2.0 flash media controller |
| USB Interface | USB 2.0 | USB 2.0 | USB 2.0 | USB 2.0 |
주요 차별점
- Broader xD media coverage than USB2228 (vs USB2228-NU-05)
- Explicit fifth-generation support set (vs USB2227-NU-09)
- Single-chip card-power integration (vs USB2251-NU-05)
설계 노트
Treat the 128-pin VTQFP as a fine-pitch routing problem. Follow the manufacturer land pattern exactly, verify pin 1 orientation and exposed-pad requirements, and route USB data pairs as short and continuous as practical. Place required bypass capacitors at their associated power pins rather than at a distant regulator, and use solid ground-plane continuity around the device. Do not rely on the generic package diagram because the supplied package library contains no exact 128-pin VTQFP SVG.
The integrated card power FETs simplify switched card-supply implementation, but each supported media family may still impose different voltage, current, insertion, and sequencing requirements. Confirm those values in the Microchip datasheet before assigning connectors or power components. Include appropriate protection for externally accessible card contacts and verify thermal performance during repeated insertion, removal, and sustained operation. The supplied evidence does not include output-current or power-dissipation limits.
Separate noisy card-power paths from sensitive USB and clock routing, and keep card connectors away from the USB host connector when chassis and ground arrangements permit. Provide short return paths for switching current and place protection components close to connector entry points. Because the controller has 128 pins, review every no-connect and configuration input from the manufacturer pin table; leaving an unused control input floating can make prototype behavior differ between assembled boards.
The most significant substitution risk is assuming that similarly named USB controllers are interchangeable. USB2228 omits xD Picture Card support, while USB2251-NU-05 and USB2227-NU-09 require comparison of their full pin and feature tables. Before replacing USB2227-NU-05, verify USB signal assignments, media connectors, clock, core voltage, I/O voltage, card power sequencing, enable pins, and exposed-pad connections. Do not rely solely on the shared 128-pin VTQFP package description.
규정 준수 정보
The supplied manufacturer and distributor snippets do not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. No compliance claim is inferred from the USB2227-NU-05 ordering code.
