USB2244-AEZG-06 USB 2.0 Card Controller | Microchip
MPN： USB2244-AEZG-06 ✓ 啟用中USB2244-AEZG-06 概覽
A USB flash media card controller is an interface IC that bridges a computer or embedded USB host with removable or flash-based memory media. It handles the physical and logical connection between the USB host controller and one or more supported card formats, allowing a system to expose storage through a standard USB interface. The USB2244 family supports secure digital, MultiMediaCard, and Memory Stick media, making it useful for card readers, portable storage, industrial data collection, and equipment with legacy media-card requirements.
The USB2244-AEZG-06 supports USB 2.0 high-speed operation and an operating supply range identified as 3 V to 3.6 V. Microchip describes the USB224x family as capable of average sustained transfer rates exceeding 35 MB/s when both the media and USB host support those rates. Actual transfer performance depends on the selected card, host controller, command queue depth, media implementation, and system software.
The integrated controller architecture reduces the external component count required for a multi-format USB card interface. Its I2C interface supports configuration or control interaction in systems that need more than a basic pass-through path between the USB host and storage media. The 36-QFN package is intended for compact PCB layouts, although high-speed signal integrity, power distribution, and thermal performance still require careful implementation.
Typical uses include USB card readers, industrial handheld terminals, portable data-acquisition equipment, test systems, and embedded media-access products. A design using this controller should verify card-format support, insertion-detection behavior, firmware compatibility, and the electrical requirements for every supported media type against the manufacturer datasheet.
For PCB implementation, place the USB and media interface connections according to the reference layout and keep the controller's power and ground connections close to their package pins. Decoupling, trace matching, controlled-impedance routing, and protection strategy are especially important because this part operates as a high-speed interface between external media and a USB host.
This product page combines the manufacturer product information, package identification, media-format capabilities, interface details, documented transfer-rate context, and practical implementation guidance to support component selection, schematic review, PCB planning, and drop-in replacement evaluation.
直接替換替代品，適用於 USB2244-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： USB2244-AEZG-06 （相同外形與佔位） — 差異在於 Product Type, Supported Media, Package, USB Specification.
USB2244-AEZG-06-TR
✅ 直接替換📋 參考替代品（不在目錄中）
USB2244I-AEZG-06
✅ 直接替換聯絡詢價
查看資料表 →USB2240-AEZG-06
✅ 直接替換聯絡詢價
查看資料表 →USB2240I-AEZG-06
✅ 直接替換聯絡詢價
查看資料表 →USB2244-AEZG-06 規格
| Product Type | USB 2.0 flash media card controller |
| USB Version | USB 2.0 |
| USB Speed | High-Speed |
| Supported Media | SD, MMC, and MS flash media |
| MCU Interface | USB and UART |
| Auxiliary Interface | I2C |
| Supply Voltage Range | 3 V to 3.6 V |
| Maximum Sustained Transfer Rate | Greater than 35 MB/s when supported by media and host |
| 封裝 | 36-QFN, 6 x 6 mm |
| 腳位數 | 36 pins |
| 安裝類型 | Surface mount |
| Integrated Controller | Single-chip USB media card controller |
| Secure Media Support | Supported by USB2244/44i family provisions |
USB2244-AEZG-06 36-qfn, 6 x 6 mm 腳位配置指南
USB2244-AEZG-06（36-qfn, 6 x 6 mm 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： USB2244-AEZG-06.
請參閱 資料表 以查看完整腳位配置。
典型應用
USB2244-AEZG-06 適用於 6 應用s: USB Card Reader, Industrial Data Acquisition, Portable Storage Device, Test and Measurement Instrument, Media Access Embedded System, Secure Media Transfer Device.
USB Card Reader
The USB2244-AEZG-06 fits a multi-format USB card reader because it connects SD, MMC, and MS media to a USB 2.0 host through one integrated controller. Its documented family performance exceeds 35 MB/s when the media and host support that rate. The 36-QFN package leaves room for connector routing and compact enclosure designs. Use the manufacturer reference circuit to implement USB termination, media-card connections, card detection, and power management consistently.
推薦
Industrial Data Acquisition
The USB2244-AEZG-06 is suitable for industrial data-acquisition equipment that reads removable flash media before transferring logs to a host computer. USB 2.0 high-speed operation supports practical throughput, while USB224x family rates can exceed 35 MB/s when both media and host are capable. The I2C interface provides a control path for configuration, and the compact 36-QFN package supports compact control panels. Validate media compatibility and environmental robustness at the product level.
推薦
Portable Storage Device
The USB2244-AEZG-06 can provide the media-access side of a portable USB storage product using SD, MMC, or MS cards. USB 2.0 high-speed operation enables useful transfer performance, and the family can exceed 35 MB/s average sustained transfer rates when the storage medium and host cooperate. The I2C interface can support device setup or status coordination. Designers should plan removable-media protection, connector reliability, and stable power delivery for insertion and removal events.
推薦
Test and Measurement Instrument
The USB2244-AEZG-06 is appropriate for test and measurement equipment that accepts flash cards for loading waveforms, configurations, or logged results. The controller supplies a standard USB 2.0 path to SD, MMC, and MS media, while high-speed operation reduces transfer time for large files. Its I2C interface can assist system configuration. Firmware, media-format licensing requirements, and sustained read-write performance should be verified with the intended card and host environment.
推薦
Media Access Embedded System
The USB2244-AEZG-06 suits embedded systems that expose removable flash-media access through a USB 2.0 host interface. Integrating SD, MMC, and MS support into one controller simplifies the media subsystem compared with separate reader implementations. The 36-QFN package supports space-constrained designs, and I2C enables a dedicated configuration path. Confirm host-driver expectations, insertion-cycle reliability, and the device's electrical limits for the target enclosure and connectors.
推薦
Secure Media Transfer Device
The USB2244-AEZG-06 is well matched to a secure-media transfer device because the USB2244/44i family includes provisions for reading and writing secure media formats. It combines support for SD, MMC, and MS media with a USB 2.0 high-speed interface. The controller's transfer-rate capability can exceed 35 MB/s when supported by the media and host. A production design must still implement the required secure-media procedures and validate access policy with the selected cards and software stack.
推薦
推薦產品摘要
工程參考資料，適用於 USB2244-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 | USB2244-AEZG-06-TR | USB2244I-AEZG-06 | USB2240-AEZG-06 | USB2240I-AEZG-06 |
|---|---|---|---|---|---|
| Package | 36-QFN (6 x 6 mm) | 36-QFN (6 x 6 mm) | 36-QFN (6 x 6 mm) | 36-QFN (6 x 6 mm) | 36-QFN (6 x 6 mm) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Controller Family | USB2244 | USB2244 | USB2244I | USB2240 | USB2240I |
| USB Version | USB 2.0 | USB 2.0 | USB 2.0 | USB 2.0 | USB 2.0 |
| USB Speed | High-Speed | High-Speed | High-Speed | High-Speed | High-Speed |
| MCU Interface | USB, UART | USB, UART | USB, UART | USB, UART | USB, UART |
| Supported Media | SD, MMC, MS | SD, MMC, MS | SD, MMC, MS | SD, MMC, MS | SD, MMC, MS |
主要差異化特點
- Secure-media capability within the USB2244 family (對比USB2240-AEZG-06)
- Direct same-family ordering alternative (對比USB2244-AEZG-06-TR)
- Industrial family option with the same package (對比USB2244I-AEZG-06)
設計說明
Implement the USB 2.0 and media interfaces using the manufacturer reference layout. Place decoupling capacitors close to the supply and ground pins, minimize loop area, and preserve the recommended exposed-pad connection and thermal-via arrangement for the 36-QFN package. Confirm the exact land pattern and exposed-pad dimensions against the official package drawing before releasing artwork.
Treat USB and card-media connections as high-speed interfaces even though the controller operates at USB 2.0 high speed. Use the datasheet-recommended topology, maintain continuous reference planes, avoid stubs, and control impedance on the relevant PCB layers. External connectors and removable media can introduce discontinuities, so validate the complete path with system-level signal and compliance testing.
Do not substitute USB2240 variants into a USB2244 design without checking secure-media procedures and firmware behavior. Also verify the ordering suffix, temperature grade, package orientation, pin assignments, and exposed-pad requirement. Insertion detection, card-power sequencing, and bus-powered current behavior should be checked with the intended media and host because connector and media implementations strongly affect the final design.
合規資訊
Compliance status has not been established for the exact USB2244-AEZG-06 order code. Confirm RoHS, REACH, AEC-Q100, lead-free, halogen-free, and conflict-minerals documentation with Microchip for the selected ordering code.
