USB2240-AEZG-06 - USB 2.0 Flash Media Controller | Microchip
料号： USB2240-AEZG-06 ✓ 量产中USB2240-AEZG-06 概述
A flash media controller is a semiconductor that translates commands between a host-side USB interface and one or more flash-card standards. The USB2240 belongs to the broader hierarchy of interface controllers, USB interface ICs, and semiconductor solutions for removable data storage. Its multi-format architecture is intended to simplify card-reader equipment that must support several generations and families of flash media.
The controller supports USB 2.0 high-speed operation and the principal media formats identified by the manufacturer, including Secure Digital, MultiMediaCard, Memory Stick, and xD-Picture Card devices. Configuration data can be stored in an external I2C EEPROM of up to 512 bytes, allowing customizable vendor and product identifiers, serial numbers, and USB string descriptors.
The USB2240-AEZG-06 is specified for a 3 V to 3.6 V operating-supply range and uses a compact 36-pin QFN package. This low-voltage integration suits desktop and notebook computer accessories, card readers, portable storage equipment, and embedded USB storage systems. The 6 x 6 mm package helps limit board area where multiple storage interfaces or connectors must coexist.
A typical implementation places the USB2240 between the system USB host controller and a flash-card connector assembly. Signal routing must preserve USB impedance characteristics and isolate noisy card-support circuitry from sensitive host-side data paths. Firmware also needs to identify connected media correctly because SD, MMC, MS, and xD devices have different command and status behavior even though they share a broader flash-memory heritage.
Designers should follow the USB2240 Hardware Design Checklist when assigning power, clocking, interface routing, card insertion detection, and EEPROM programming. The external EEPROM, when required by the product configuration, also becomes part of the device identity plan and should be allocated and programmed before production. PCB layout should minimize differential-pair discontinuities and keep the exposed thermal pad electrically and thermally handled according to the manufacturer land pattern.
This product page combines the controller's stated media-format support, package details, configuration requirements, and practical hardware guidance with a structured comparison to same-package family devices. It also identifies the engineering boundaries that matter when evaluating a replacement, particularly USB speed, supported card formats, package compatibility, and configurable descriptor EEPROM requirements.
直接替换替代料： USB2240-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： USB2240-AEZG-06 （相同外形与封装尺寸） ——差异在于 Product Type, Supported Media, Package, USB Specification.
USB2240I-AEZG-06
✅ 直接替换联系询价
查看数据手册 →USB2244-AEZG-05
✅ 直接替换联系询价
查看数据手册 →USB2244-AEZG-06
✅ 直接替换联系询价
查看数据手册 →USB2240-AEZG-06 规格参数
| Product Type | USB 2.0 Multi-Format Flash Media Controller |
| USB Specification | USB 2.0 |
| USB Speed | High-Speed |
| 工作电源电压 | 3 V to 3.6 V |
| Package Type | 36-pin QFN |
| Package Dimensions | 6 x 6 mm |
| Supported Media | SD, MMC, MS, and xD flash media |
| Upstream Interface | USB 2.0 host controller interface |
| Configuration Interface | External I2C EEPROM interface |
| EEPROM Capacity | 512 bytes (512 x 8 bits) |
| Configurable Vendor ID | Yes, through external I2C EEPROM |
| Configurable Product ID | Yes, through external I2C EEPROM |
| Configurable Serial Number | Yes, through external I2C EEPROM |
| Product String Descriptors | Yes, through external I2C EEPROM |
| 安装类型 | Surface Mount |
| Primary Application | Desktop and notebook PC flash-media interface |
USB2240-AEZG-06 6 x 6 mm 引脚配置指南
USB2240-AEZG-06（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： USB2240-AEZG-06.
请参阅 数据手册 以查看完整引脚配置。
典型应用
USB2240-AEZG-06 适用于 6 应用s: Desktop USB Card Reader, Notebook Flash-Media Interface, Portable Storage Reader, Industrial Flash-Card Gateway, USB Media Sync and Transfer, Embedded Flash-Media Appliance.
Desktop USB Card Reader
The USB2240-AEZG-06 fits a desktop card reader that must expose SD, MMC, MS, and xD media through one USB 2.0 High-Speed host interface. Its 3 V to 3.6 V operating range aligns with a 3.3 V system, while the 6 x 6 mm QFN preserves board area around connectors. The implementation should follow the manufacturer's hardware checklist for USB routing, card detection, clocking, and the external I2C EEPROM used for device identifiers and string descriptors.
推荐
Notebook Flash-Media Interface
The USB2240-AEZG-06 is appropriate for notebook expansion designs that need to read several flash-card families through a USB 2.0 High-Speed interface. Its multi-format support covers SD, MMC, MS, and xD devices, reducing the need for separate controllers. In a compact portable enclosure, the 36-pin QFN helps minimize area, but thermal design and connector mechanics remain important. A 512-byte external I2C EEPROM can store the product identity and descriptors expected by the host.
推荐
Portable Storage Reader
A portable storage product can use the USB2240-AEZG-06 to combine legacy and mainstream flash formats behind a common USB 2.0 host interface. Supporting SD, MMC, MS, and xD media is useful for users carrying cards from multiple devices. The controller's 3.3 V-class supply requirement and compact QFN package support portable industrial designs, while the removable-card interface must be protected against insertion transients, electrostatic discharge, and accidental power removal.
推荐
Industrial Flash-Card Gateway
The USB2240-AEZG-06 can serve as the media-facing portion of an industrial storage gateway that accepts several removable flash-card formats and exposes them to a host controller. Multi-format support reduces mechanical and firmware complexity when field technicians use SD, MMC, MS, or xD media. The 36-pin QFN permits dense routing around card sockets, although the system must provide stable 3 V to 3.6 V operation, controlled USB signal integrity, card insertion detection, and suitable ESD protection.
推荐
USB Media Sync and Transfer
The USB2240-AEZG-06 can support file-transfer appliances that synchronize removable flash media with a computer or embedded host. USB 2.0 High-Speed operation provides the interface class for media synchronization, while support for four principal flash-card families broadens compatibility. Designers should implement media enumeration and access-control software for each format and use the external I2C EEPROM to establish stable USB identity, serial-number, and product-string information before the device reaches users.
推荐
Embedded Flash-Media Appliance
The USB2240-AEZG-06 fits embedded appliances that accept removable flash media while maintaining a compact board layout. The 6 x 6 mm QFN and 3 V to 3.6 V supply range support integration into embedded USB systems, and the multi-format architecture supports SD, MMC, MS, and xD media. The implementation should separate USB and card-side routing, include compliant termination and decoupling, and use the Microchip hardware checklist to validate power sequencing, EEPROM configuration, and card insertion behavior.
推荐
推荐产品汇总
工程参考数据： USB2240-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 | USB2240I-AEZG-06 | USB2244-AEZG-05 | USB2244-AEZG-06 |
|---|---|---|---|---|
| Manufacturer | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 36-pin QFN, 6 x 6 mm | VQFN-36 | VQFN-36 | VQFN-36 |
| USB Specification | USB 2.0 | USB 2.0 | USB 2.0 | USB 2.0 |
| USB Speed | High-Speed | High-Speed | High-Speed | High-Speed |
| Primary Function | Multi-format flash media controller | Flash media card controller | USB 2.0 controller with downstream-port configuration | USB 2.0 controller with downstream-port configuration |
| Supported Media | SD, MMC, MS, and xD | SD, MMC, MS, and xD | SD, MMC, MS, and xD | SD, MMC, MS, and xD |
| MCU Interface | Not stated | Not stated | USB or UART | USB or UART |
| External Configuration EEPROM | I2C EEPROM up to 512 bytes (512 x 8 bits) | I2C EEPROM configuration described for USB2240/USB2240I | Not stated | Not stated |
| Primary Application | Desktop and notebook PC flash-media interface | USB 2.0 flash-media card interface | USB 2.0 flash-media interface | USB 2.0 flash-media interface |
关键差异点
- Explicit multi-format flash-media support （对比 USB2513BI-AEZG-TR)
- Compact 6 x 6 mm controller package （对比 USB2240I-AEZG-06)
- Configurable identity through a documented EEPROM path （对比 USB2244-AEZG-06)
设计说明
Follow the USB2240 Hardware Design Checklist for land pattern, power, clocking, card detection, and interface routing. Keep USB and flash-media traces away from switching-node and high-current return paths, provide local decoupling at the supply pins, and route the USB differential pair as a controlled impedance pair with no unnecessary stubs.
Design the 3 V to 3.6 V supply path for both controller demand and card-insertion transients. Place bulk and high-frequency decoupling near the device, account for removable-card power consumption, and add protection where the card socket can introduce electrostatic discharge or overvoltage. Verify startup and removal behavior across all supported media formats.
Do not treat package equivalence as complete interchangeability. Before replacing USB2240-AEZG-06 with USB2240I-AEZG-06 or a USB2244 variant, compare pin assignments, supported media, firmware behavior, clock requirements, and the external I2C EEPROM configuration method. The USB2513 family is a USB hub controller and is not a valid replacement for this flash-media controller.
合规信息
No specific RoHS, REACH, lead-free, halogen-free, or conflict-minerals status is stated for the exact MPN. The controller is not presented as an automotive-qualified device.
