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USB2227

Features: ` Support for simultaneous operation of all above devices. (only one at a time of each of the following groups supported: CF or ATA drive, SM or XD or NAND, SD or MMC)` On-Chip 4-Bit High Speed Memory Stick and MS PRO Hardware Circuitry` On-Chip firmware reads and writes High Speed Memor...

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SeekIC No. : 004538769 Detail

USB2227: Features: ` Support for simultaneous operation of all above devices. (only one at a time of each of the following groups supported: CF or ATA drive, SM or XD or NAND, SD or MMC)` On-Chip 4-Bit High ...

USB2227 Data Sheet

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Part Number:
USB2227
Supply Ability:
5000

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  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/11/22

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Product Details

Description



Features:

` Support for simultaneous operation of all above devices. (only one at a time of each of the following groups supported: CF or ATA drive, SM or XD or NAND, SD or MMC)
` On-Chip 4-Bit High Speed Memory Stick and MS PRO Hardware Circuitry
` On-Chip firmware reads and writes High Speed Memory Stick and MS PRO
` 1-bit ECC correction performed in hardware for maximum efficiency
` Hardware support for SD Security Command Extensions
` On-chip power FETs for supplying flash media card power with minimum board components
` USB Bus Power Certified
` 3.3 Volt I/O with 5V input tolerance on VBUS/GPIO3
` Complete USB Specification 2.0 Compatibility for Bus Powered Operation
- Includes USB2.0 Transceiver
- A Bi-directional Control and a Bi-directional Bulk Endpoint are provided.
` 8051 8 bit microprocessor
- Provides low speed control functions
- 30 Mhz execution speed at 4 cycles per instruction average
- 12K Bytes of internal SRAM for general purpose scratchpad
- 768 Bytes of internal SRAM for general purpose scratchpad or program execution while re-flashing external ROM
` Double Buffered Bulk Endpoint
- Bi-directional 512 Byte Buffer for Bulk Endpoint
- 64 Byte RX Control Endpoint Buffer
- 64 Byte TX Control Endpoint Buffer
` Internal or External Program Memory Interface
- 64K Byte Internal Code Space or Optional 64K Byte External Code Space using Flash, SRAM or EPROM memory.
` On Board 24Mhz Crystal Driver Circuit
` Can be clocked by 48MHz external source
` On-Chip 1.8V Regulator for Low Power Core Operation
` Internal PLL for 480Mhz USB2.0 Sampling, Configurable MCU clock
` Supports firmware upgrade via USB bus if "boot block" Flash program memory is used
` 15 GPIOs for special function use: LED indicators, button inputs, power control to memory devices, etc.
- Inputs capable of generating interrupts with either edge sensitivity
- Attribute bit controlled features:
- Activity LED polarity/operation/blink rate
- Full or Partial Card compliance checking
- Bus or Self Powered
- LUN configuration and assignment
- Write Protect Polarity
- SmartDetach™ Detach from USB when no Card Inserted for Notebook apps
- Cover Switch operation for xD compliance
- Inquiry Command operation
- SD Write Protect operation
- Older CF card support
- Force USB 1.1 reporting
- Internal or External Power FET operation
` Compatible with Microsoft WinXP, WinME, Win2K SP3, Apple OS10, Softconnex, and Linux Multi-LUN Mass Storage Class Drivers
` Win2K, Win98/98SE and Apple OS8.6 and OS9 Multi-LUN Mass Storage Class Drivers available from SMSC
` 128 Pin VTQFP Package (1.0mm height, 14mm x14mm footprint); green, lead-free package also


Pinout

Connection Diagram


Specifications

Operating Temperature Range ...............................................................0oC to +70
Storage Temperature Range............................................................... -55o to +150
Lead Temperature Range (soldering, 10 seconds) ..........................................+325
Positive Voltage on GPIO3, with respect to Ground..............................................5.5V
Positive Voltage on any signal pin, with respect to Ground .................................4.6V
Positive Voltage on XTAL1, with respect to Ground .............................................4.0V
Positive Voltage on XTAL2, with respect to Ground ..............................................2.5V
Negative Voltage on GPIO8, 10 & 11, with respect to Ground (see Note 7.2).....-0.5V
Negative Voltage on any pin, with respect to Ground ........................................-0.5V
Maximum VDD18, VDD18PLL ............................................................................   . +2.5V
Maximum VDD33, VDDA33 ....................................................................................+4.6V


Description

The USB2227/USB2228 is a USB2.0 Bulk Only Mass Storage Class Peripheral Controller intended for supporting CompactFlash (CF and CF Ultra I/II) in True IDE Mode only, SmartMedia (SM) and XD cards, Memory Stick (MS), Memory Stick DUO (MSDUO) and Memory Stick Pro (MSPRO), Secure Digital (SD), and MultiMediaCard (MMC) flash memory devices. It provides a single chip solution for the most popular flash memory cards in the market.

The USB2227 consists of a USB2.0 PHY and SIE, buffers, Fast 8051 microprocessor with expanded scratchpad, and program SRAM, and CF, MS, SM and SD controllers. The SD controller supports both SD and MMC devices. SM controller supports both SM and xD cards. Provisions for external Flash Memory up to 64K bytes for program storage is provided. 12K bytes of scratchpad SRAM and 768 Bytes of program SRAM are also provided.




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