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Microchip Technology USB2240I-AEZG-06
- Part No.:
- USB2240I-AEZG-06
- Manufacturer:
- Microchip Technology
- Category:
- Specialized
- Package:
- 36-VFQFN Exposed Pad
- Datasheet:
-
USB2240I-AEZG-06.pdf
- Description:
- IC INTERFACE SPECIALIZED 36QFN
- Quantity:
- Payment:
- Shipping:
Inventory:484
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Product details
Overview
USB2240I-AEZG-06 from Microchip Technology is a USB 2.0 Hi-Speed bulk-only flash media controller IC designed for xD-Picture Card, Memory Stick, and SD/MMC card reader applications. It integrates an 8051 core (60 MHz, 64 KB ROM/14 KB RAM), on-chip 3.3 V to 1.8 V regulators, internal card power FET (200 mA), and hardware-controlled data flow architecture. It delivers sustained transfer rates exceeding 35 MB/s in compatible host/media configurations and operates across -40°C to +85°C.
For engineers reviewing the USB2240I-AEZG-06 datasheet, USB2240I-AEZG-06 pinout, USB2240I-AEZG-06 application, or USB2240I-AEZG-06 equivalent, key selection criteria include industrial temperature support, xD/MS/SD multiplexed interface capability, integrated 24 MHz crystal driver, USB 2.0 compliance with embedded SIE, and firmware-configurable media detection and LED control.
Technical Context
The USB2240I-AEZG-06 implements a dedicated flash media controller architecture with hardware-accelerated command/data path handling for xD-Picture Card (v1.2), Memory Stick (v1.43/Pro v1.02/Duo v1.10), and SD/MMC (v2.0/4.2) protocols. Its 8051 microprocessor executes firmware from 64 KB ROM and 14 KB RAM, managing media-specific timing, error correction, and USB mass storage class (MSC) protocol translation.
It features a multiplexed 18-pin xD/SD/MS interface supporting shared socket designs, on-die 1.8 V core and PLL regulators, and configurable CRD_PWR output driving up to 200 mA at 3.3 V with fold-back short-circuit protection. The device uses internal pull-up/pull-down resistors on all media I/O pins and includes integrated USB transceiver biasing via RBIAS.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| USB Compliance | USB 2.0 Hi-Speed (480 Mbps), bulk-only MSC class; integrated D+/D− termination and pull-up/down resistors |
| Media Support | xD-Picture Card v1.2, Memory Stick v1.43/Pro v1.02/Duo v1.10, SD v2.0 (HS-SD/SDHC), MMC v4.2 (1/4/8-bit) |
| Processor Core | 8051-based MCU: 60 MHz single-cycle execution, 64 KB ROM, 14 KB RAM |
| Power Management | Single 3.3 V supply; internal 1.8 V core/PLL regulators; CRD_PWR output: 200 mA @ 3.3 V with fold-back protection |
| Clock Source | On-chip 24 MHz crystal driver; optional external 24 MHz clock input via XTAL1 |
| Operating Temp | -40°C to +85°C (industrial grade, denoted by "I" suffix) |
| Package | 36-pin QFN (6 × 6 mm), RoHS-compliant, exposed thermal pad (ePad) |
Pinout & Package
USB2240I-AEZG-06 is housed in a 36-pin QFN package (6 × 6 mm, 0.5 mm pitch) with an exposed ground pad (ePad) requiring 3×3 array of vias to VSS. Pin functions are defined per USB2240/40I configuration, supporting xD-Picture Card, Memory Stick, and SD/MMC interfaces via multiplexed pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| xD_D[7:0] (Pins 4,5,7,8,10,11,20,23) | xD bidirectional data bus | 8-bit parallel interface to xD-Picture Card; weak internal pull-downs; supports ALE/CLE/nRE/nWE/nB/R control |
| SD_D[7:0]/MS_D[7:0] (Pins 4,5,7,8,10,11,20,23,25,26) | Multiplexed SD/MMC & MS data lines | Shared pins enable combo socket design; pull-up (SD) or pull-down (MS) configured per media protocol |
| CRD_PWR (Pin 21) | Card power switch output | 200 mA 3.3 V FET output with fold-back short-circuit protection; enables/disables card power under firmware control |
| RESET_N (Pin 18) | Active-low reset input | Asynchronous system reset; requires ≥1 μs low pulse; sampled at power-up to configure MS socket size (4-/8-bit) |
| LED (Pin 1) | Media activity indicator | Configurable open-drain output; blink interval/duration programmable via EEPROM; signals read/write activity |
Key Features
| Feature | Design Value |
|---|---|
| Hardware-controlled data flow | Eliminates CPU overhead for self-mapped media (e.g., xD), enabling deterministic high-throughput transfers |
| Multiplexed media interface | Single 36-pin QFN supports xD, MS, and SD/MMC in "combo" card sockets-reducing BOM and PCB layer count |
| Integrated power FET | 200 mA CRD_PWR output with fold-back protection removes need for external MOSFET and current-sense circuitry |
| Firmware configurability | EEPROM-based setup (I²C) enables customization of VID/PID, serial number, vendor/product strings, LED behavior, and LUN mapping |
| Industrial temperature operation | Validated -40°C to +85°C performance ensures reliability in embedded kiosks, printers, and industrial HMI systems |
Applications
| Desktop & Mobile PC Card Readers | Multi-Format Printers |
|---|---|
Use Scenario: Integrated SD/xD/MS card slot in all-in-one desktops or portable docking stations. IC Role / Device Role / Timing Role: USB 2.0 peripheral controller translating MSC-class commands into media-specific protocols with hardware-accelerated data streaming. Use Value: Enables plug-and-play compatibility with Windows XP/Vista/Linux without custom drivers while sustaining >35 MB/s reads on SDHC cards. | Use Scenario: Photo printers with dual SD and Memory Stick slots for direct print-from-card functionality. IC Role / Device Role / Timing Role: Media interface arbiter and USB endpoint manager handling concurrent card insertions and hot-plug events. Use Value: Reduces firmware complexity via hardware-managed media detection (MS_INS, xD_nCD) and automatic LUN enumeration per inserted card. |
| Consumer A/V Media Players | Industrial Embedded Kiosks |
Use Scenario: Portable media players supporting playback from xD, SD, and MS cards without host PC. IC Role / Device Role / Timing Role: Standalone flash media controller executing embedded 8051 firmware to manage FAT32 file access and USB MSC enumeration. Use Value: Eliminates need for external microcontroller; 64 KB ROM stores full USB stack and media drivers, reducing BoM cost and footprint. | Use Scenario: Self-service retail kiosks requiring reliable, long-life media readers operating in uncontrolled ambient environments. IC Role / Device Role / Timing Role: Industrial-grade peripheral controller with validated -40°C to +85°C operation and robust ESD-tolerant I/O (12 mA drive, internal pull-ups/downs). Use Value: Ensures continuous uptime in kiosk deployments where field failures due to temperature cycling or card insertion stress are unacceptable. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar flash media controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| USB2241I-AEZG-06 | Omits xD-Picture Card interface; retains MS/SD multiplexed support and identical 36-pin QFN package | Suitable for MS+SD-only readers; eliminates xD signal routing and firmware overhead | Select when xD support is unnecessary-reduces layout complexity and simplifies qualification testing |
| USB2244I-AEZG-06 | Dedicated SD/MMC-only interface (12-pin SD bus); no xD or MS support; same core, clock, and power specs | Optimized for high-volume SD card readers where MS/xD compatibility is not required | Choose for lowest BOM cost and fastest time-to-market in SD-centric applications like digital signage or POS terminals |
Compared with USB2241I-AEZG-06 and USB2244I-AEZG-06, the USB2240I-AEZG-06 uniquely supports xD-Picture Card alongside MS and SD in a single multiplexed interface-making it the only option for legacy camera card compatibility in multi-format readers.
Availability
USB2240I-AEZG-06 is available at Aetrix Electronics and suitable for desktop peripherals, industrial kiosks, and consumer A/V devices requiring stable component supply, industrial temperature resilience, and multi-format flash media interoperability.
Supply support for USB2240I-AEZG-06 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Microchip Technology Inc. is a leading provider of microcontrollers, analog components, and Flash-IP solutions, serving automotive, industrial, and consumer markets with high-reliability silicon and development tools.
The USB224x product line delivers fully integrated, single-chip USB 2.0 flash media controllers targeting cost-sensitive, space-constrained card reader designs requiring broad media format support and industrial-grade operation.
FAQ
What media formats does the USB2240I-AEZG-06 natively support?
The USB2240I-AEZG-06 natively supports xD-Picture Card v1.2, Memory Stick v1.43/Pro v1.02/Duo v1.10, Secure Digital v2.0 (including HS-SD and SDHC), and MultiMediaCard v4.2 (1/4/8-bit). It implements hardware-accelerated command/data paths for each format and uses multiplexed pins to share interface resources across media types-enabling true combo socket functionality in the USB2240I-AEZG-06 design.
Does the USB2240I-AEZG-06 require an external crystal or can it use an oscillator?
The USB2240I-AEZG-06 supports both configurations: a 24 MHz crystal connected between XTAL1 and XTAL2, or an external 24 MHz clock source applied to XTAL1 (with XTAL2 left open). The on-chip crystal driver eliminates need for external buffer circuitry, and the internal PLL ensures precise USB timing compliance. This flexibility allows designers to optimize for cost (crystal) or board-level noise immunity (clock source) in the USB2240I-AEZG-06 implementation.
How is card power managed on the USB2240I-AEZG-06?
The USB2240I-AEZG-06 integrates a 200 mA CRD_PWR output (Pin 21) that drives 3.3 V to attached flash media. It features built-in fold-back short-circuit protection, eliminating external current-limiting components. Firmware controls activation/deactivation, and the output's internal FET ties weak pull-up resistors to media control pins (e.g., xD_nRE, xD_nWE) when enabled-ensuring safe power sequencing and robust fault tolerance in the USB2240I-AEZG-06 system.
Can the USB2240I-AEZG-06 operate without an external EEPROM?
Yes-the USB2240I-AEZG-06 boots using internal default firmware and configuration values (e.g., VID=0424h, PID=2240h, product string "Ultra Fast Media Reader"). An external I²C EEPROM is optional and used only to customize USB descriptors, LED behavior, LUN mapping, or media power settings. All core functionality-including xD/MS/SD protocol handling and USB enumeration-operates immediately after power-up without EEPROM in the USB2240I-AEZG-06 design.
What is the role of the RESET_N pin on the USB2240I-AEZG-06 during initialization?
On the USB2240I-AEZG-06, the RESET_N pin (Pin 18) serves two critical roles: first, it asynchronously resets the 8051 core and USB SIE upon assertion; second, its logic level is sampled at power-up to determine Memory Stick socket configuration-high = 8-bit mode, low = 4-bit mode. This sampling occurs before firmware execution begins, enabling hardware-driven interface adaptation without software intervention in the USB2240I-AEZG-06 boot sequence.
USB2240I-AEZG-06 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 36-VFQFN Exposed Pad
- Packaging:
- Tray
- Product Status:
- Active
- Applications:
- Controller
- Interface:
- -
- Voltage - Supply:
- 3.3V
- Supplier Device Package:
- 36-QFN (6x6)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
USB2240I-AEZG-06 FAQ
1.How can I place an order for USB2240I-AEZG-06 through Aetrix?
Please submit a Request for Quotation (RFQ) for USB2240I-AEZG-06 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for USB2240I-AEZG-06 reliable?
The price and inventory of USB2240I-AEZG-06 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for USB2240I-AEZG-06 is usually 5 days.
3.What payment methods are accepted for USB2240I-AEZG-06?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for USB2240I-AEZG-06 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for USB2240I-AEZG-06?
USB2240I-AEZG-06 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your USB2240I-AEZG-06 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for USB2240I-AEZG-06?
For technical support, including USB2240I-AEZG-06 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your USB2240I-AEZG-06 requirements.
6.How does Aetrix verify that USB2240I-AEZG-06 is sourced from the original manufacturer or authorized distributors?
All USB2240I-AEZG-06 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that USB2240I-AEZG-06 meets industry standards.
7.What is the process for return or replacement of USB2240I-AEZG-06?
All USB2240I-AEZG-06 units undergo pre-shipment inspection (PSI). If there is an issue with USB2240I-AEZG-06, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The USB2240I-AEZG-06 part is unused and in its original packaging.
Return procedure for USB2240I-AEZG-06:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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