USB2240I-AEZG-06 USB 2.0 Multi-Format Flash Media Controller
MPN： USB2240I-AEZG-06 ✓ 啟用中USB2240I-AEZG-06 概覽
What is a flash media controller? A flash media controller is a dedicated interface IC that sits between a USB host controller and a physical card connector, translating USB traffic into the native command set of removable flash media. In the device hierarchy it belongs to the interface IC family, which sits above general-purpose logic and below complete USB connectivity solutions. The USB2240 family extends the Microchip USB224x line of Hi-Speed USB 2.0 controllers covering the most popular flash media card families.
Key features of this device include comprehensive USB 2.0 compliance, support for SD, MultiMediaCard (MMC) and Memory Stick (MS) media families in a single controller, and operation across the 3.0 V to 3.6 V supply range. Because multiple card standards are handled by one silicon device, designers avoid the cost and board area of adding parallel single-format reader controllers to each connector.
The controller is part of the USB224x family, whose architecture is organized around a dedicated media interface engine and a USB device engine. This separation allows card enumeration, media identification and transfer protocol handling to proceed independently of USB bus traffic, so card insertion and removal do not disturb the host enumeration sequence.
Typical applications include multi-format card readers for desktop PCs, notebook computers, digital cameras and portable devices, USB storage dongles, and embedded set-top or industrial data-acquisition equipment that must accept SD, MMC and MS cards through a single USB port.
Design consideration: this controller is a 3.3 V device, so a system that powers the USB port from a 5 V rail must derive a clean 3.3 V rail for the core supply and I/O buffering. Decoupling should follow the layout and capacitor recommendations in the manufacturer datasheet, and the exposed pad must be tied to ground with a thermal and electrical via array to limit junction temperature.
This page brings together manufacturer product information, package and ordering detail, drop-in alternatives in the same 36-QFN footprint, and practical layout and thermal guidance that is not consolidated in a single manufacturer document.
直接替換替代品，適用於 USB2240I-AEZG-06 — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： USB2240I-AEZG-06 （相同外形與佔位） — 差異在於 Product Type, Supported Media, Package, USB Specification.
USB2240-AEZG-06
✅ 直接替換聯絡詢價
查看資料表 →USB2244I-AEZG-06
✅ 直接替換聯絡詢價
查看資料表 →USB2240I-AEZG
✅ 直接替換📋 參考替代品（不在目錄中）
USB2241I-AEZG-05
✅ 直接替換📋 參考替代品（不在目錄中）
GL827L
✅ 直接替換📋 參考替代品（不在目錄中）
USB2240I-AEZG-06 規格
| Device Type | USB 2.0 Multi-Format Flash Media Controller |
| USB Specification | USB 2.0 (High-Speed and Full-Speed) |
| Supported Media | SD, MMC (MultiMediaCard), MS (Memory Stick) flash media cards |
| Core Supply Voltage | 3.0 V to 3.6 V (3.3 V nominal) |
| 封裝 | 36-pin QFN (6x6 mm) with exposed pad |
| 安裝類型 | Surface Mount |
| Temperature Grade | Industrial (-I suffix) |
| 腳位數 | 36 pins |
| Exposed Pad | Yes, thermal and ground pad |
| Shipping Method | Tray |
| Product Type | Controller Interface IC |
| 類別 | USB Interface ICs |
| Manufacturer | Microchip Technology |
| Series | USB224x |
USB2240I-AEZG-06 36-pin qfn (6x6 mm) with exposed pad 腳位配置指南
USB2240I-AEZG-06（36-pin qfn (6x6 mm) with exposed pad 封裝）的腳位配置。 腳位編號、功能與連接圖定義於製造商資料手冊中。請參閱該手冊以取得確切的封裝尺寸與焊接指引。
無詳細腳位定義資料： USB2240I-AEZG-06.
請參閱 資料表 以查看完整腳位配置。
典型應用
USB2240I-AEZG-06 適用於 6 應用s: Desktop and Notebook Multi-Format Card Reader, USB Flash Memory Card Reader Dongle, Digital Camera and Imaging Device Card Interface, Industrial Data Acquisition and Logging Unit, Set-Top Box and Smart Home Media Hub, Portable Media Transfer and Backup Device.
Desktop and Notebook Multi-Format Card Reader
The USB2240I-AEZG-06 fits a front-panel or internal card reader that must accept Secure Digital, MultiMediaCard and Memory Stick media through a single USB 2.0 port. Because one controller handles all three card families, the board needs only one media interface engine and one set of level-shifters instead of parallel single-format readers, reducing board area and BOM cost. The 3.0 V to 3.6 V core supply matches the 3.3 V rail already present in most PC mainboards, so no extra low-dropout stage is required. The 36-pin QFN (6x6 mm) package keeps the footprint compatible with dense reader and docking-station layouts, and the exposed pad provides the thermal path for continuous card enumeration and file transfer workloads.
推薦
USB Flash Memory Card Reader Dongle
In a compact dongle form factor, the USB2240I-AEZG-06 provides the media-facing half of a self-powered or bus-powered reader dongle. The controller's USB 2.0 device engine handles enumeration and transfer while the media engine identifies SD, MMC or MS cards inserted during operation, so a card swap does not interrupt host enumeration. Bus-powered designs must budget carefully for the 3.3 V core rail and inrush from card insertion, since media cards can draw significant current during initialization. The small 6x6 mm QFN body leaves room for the card connector and its routing in a stick-format enclosure.
推薦
Digital Camera and Imaging Device Card Interface
Cameras and imaging equipment that record to removable flash media need a controller that speaks both USB and the native card command set. The USB2240I-AEZG-06 sits between the camera's USB 2.0 device port and the SD/MMC/MS socket, translating host commands into media operations while handling insertion, removal and card-capacity detection. Running from a 3.3 V rail that already exists in the camera mainline avoids an extra regulator in space-constrained handheld designs. Industrial temperature grading suits cameras deployed in fixed kiosks and inspection stations where ambient conditions exceed typical consumer consumer-grade ranges.
推薦
Industrial Data Acquisition and Logging Unit
Field data loggers frequently accept SD cards for bulk storage of sensor samples recorded over long deployments. The USB2240I-AEZG-06 provides the bridge from a host PC or embedded Linux board to the SD/MMC/MS socket used for bulk storage, and its 3.3 V core supply is readily derived from the same rail that powers the acquisition electronics. Because the controller maintains USB 2.0 compliance, standard enumeration tools and operating-system card readers recognize the media without custom drivers. In designs where a supervisor MCU monitors the enclosure, the 3.3 V rail budget and the exposed-pad thermal path should be reviewed together so heavy sustained write activity does not push junction temperature.
推薦
Set-Top Box and Smart Home Media Hub
Set-top boxes and smart-home media hubs frequently expose an external card slot for subscription, update or diagnostic media. The USB2240I-AEZG-06 adds multi-format card support to an existing USB 2.0 hub port by sharing the host controller with other peripherals, so only the card connector and its routing need to be added. Its 36-pin QFN (6x6 mm) footprint fits within tight hub and enclosure layouts, and the exposed pad keeps thermal performance predictable in sealed enclosures with limited airflow. Confirming the 3.3 V rail tolerance and the exposed-pad via pattern during layout keeps the design on the manufacturer's recommended thermal path.
推薦
Portable Media Transfer and Backup Device
Portable backup devices that accept camera cards benefit from the multi-format coverage of the USB2240I-AEZG-06, since photographers and field technicians routinely mix SD, MMC and MS cards. The controller's USB 2.0 device engine allows the device to appear as a standard removable storage peripheral to the host, so backup software can enumerate and copy images without vendor-specific drivers. Because the design is bus-powered, the 3.3 V core supply must be derived with low dropout and stable startup to avoid enumeration failures when a card is inserted. The small QFN package and tray shipping format also align with high-volume portable accessory production.
推薦
推薦產品摘要
工程參考資料，適用於 USB2240I-AEZG-06 — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | USB2240-AEZG-06 | USB2244I-AEZG-06 | USB2240I-AEZG | USB2241I-AEZG-05 | GL827L |
|---|---|---|---|---|---|---|
| Package | 36-QFN (6x6 mm) with exposed pad | 36-QFN (6x6 mm) with exposed pad - same | 36-QFN (6x6 mm) with exposed pad - same | 36-QFN (6x6 mm) with exposed pad - same | QFN (36-pin) - same class | 36-QFN (6x6 mm) with exposed pad - same class |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Genesys Logic |
| Device Type | USB 2.0 multi-format flash media controller | USB 2.0 multi-format flash media controller | USB 2.0 multi-format flash media controller with xD support | USB 2.0 multi-format flash media controller | USB 2.0 flash media controller | USB 2.0 flash media card reader controller |
| Core Supply Voltage | 3.0 V to 3.6 V (3.3 V nominal) | 3.0 V to 3.6 V (3.3 V nominal) | 3.0 V to 3.6 V (3.3 V nominal) | 3.0 V to 3.6 V (3.3 V nominal) | 3.3 V class | 3.3 V class |
| USB Compliance | USB 2.0 high-speed and full-speed | USB 2.0 | USB 2.0 | USB 2.0 | USB 2.0 | USB 2.0 |
主要差異化特點
- Single controller covers SD, MMC and MS media families (對比GL827L)
- Industrial temperature grading in the standard 36-QFN footprint (對比USB2240-AEZG-06)
- Family upgrade path without a package change (對比USB2244I-AEZG-06)
- Established USB224x feature set with an exposed thermal pad (對比USB2241I-AEZG-05)
設計說明
The 36-QFN (6x6 mm) package dissipates heat through the exposed pad, so the pad must be soldered to a solid ground plane and stitched with a dense via array placed directly beneath it. Estimated: with 0.7 W of dissipation and a 6x6 mm pad on a 2-layer board, the effective junction-to-ambient rise is roughly 40-60 C, which is acceptable only if the enclosure is ventilated or the converter is loaded lightly. Use the manufacturer datasheet for the published junction-to-ambient and junction-to-case figures before sizing the copper.
Route the USB D+ and D- pair as a short, length-matched 90 ohm differential pair on the top layer over a continuous ground plane, keeping it clear of the exposed-pad via field and of the card signal traces. Place the 3.3 V decoupling capacitors at the supply pins with a short return path to the ground plane, and keep the media-interface traces away from the USB pair to avoid crosstalk during high-speed transfers. Follow the datasheet placement and capacitor values rather than substituting generic bulk-only networks.
Do not substitute the commercial-grade USB2240-AEZG-06 for the USB2240I-AEZG-06 in equipment with an extended ambient temperature range, and do not assume the USB2241 or USB2244 variants are register-compatible for firmware that was written against the USB2240 command set. Verify the ordering-information table in the datasheet against the temperature grade, package code and media feature set your firmware expects before releasing a production build.
合規資訊
The USB2240 is an industrial-temperature-grade flash media controller for consumer, industrial and embedded equipment rather than an automotive-qualified device, so AEC-Q100 does not apply. RoHS, REACH, lead-free and halogen-free declarations for this specific ordering code were not confirmed and are recorded as unknown; check the Microchip material declaration for the exact -06 ordering code before making a compliance claim.
