USB2244-AEZG-06 USB 2.0 Card Controller | Microchip
料号： USB2244-AEZG-06 ✓ 量产中USB2244-AEZG-06 概述
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.
直接替换替代料： USB2244-AEZG-06 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： USB2244-AEZG-06 （相同外形与封装尺寸） ——差异在于 Product Type, Supported Media, Package, USB Specification.
USB2244-AEZG-06-TR
✅ 直接替换📋 参考替代料（不在目录中）
USB2244I-AEZG-06
✅ 直接替换联系询价
查看数据手册 →USB2240-AEZG-06
✅ 直接替换联系询价
查看数据手册 →USB2240I-AEZG-06
✅ 直接替换联系询价
查看数据手册 →USB2244-AEZG-06 规格参数
| 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 |
| 封装 | 36-QFN, 6 x 6 mm |
| 引脚数量 | 36 pins |
| 安装类型 | 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 引脚配置指南
USB2244-AEZG-06（36-qfn, 6 x 6 mm 封装）的引脚配置。 引脚编号、功能和连接图在制造商数据手册中定义。请参阅该手册以了解确切的封装尺寸和焊接指南。
暂无详细引脚数据： USB2244-AEZG-06.
请参阅 数据手册 以查看完整引脚配置。
典型应用
USB2244-AEZG-06 适用于 6 应用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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
推荐产品汇总
工程参考数据： USB2244-AEZG-06 ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | 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 |
关键差异点
- Secure-media capability within the USB2244 family （对比 USB2240-AEZG-06)
- Direct same-family ordering alternative （对比 USB2244-AEZG-06-TR)
- Industrial family option with the same package （对比 USB2244I-AEZG-06)
设计说明
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.
合规信息
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.
