Datasheet > USB2228

USB2228

更新时间： 2024-11-15 14:53:27

品牌	Logo	应用领域
美国微芯 - MICROCHIP		/
页数	文件大小	规格书
25页	352K
描述
The USB2228 is a 4th generation USB 2.0 Flash Card Media that provides the interface between a USB

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USB2228 数据手册

USB2227/USB2228

4th Generation USB 2.0 Flash Media Controller with

Integrated Card Power FETs

• Double Buffered Bulk Endpoint

Highlights

- Bi-directional 512 Byte Buffer for Bulk End-

point

• Complete System Solution for interfacing Smart-

Media^™(SM) or xD Picture Card^™(xD)¹, Memory

Stick^®(MS), High Speed Memory Stick (HSMS),

Memory Stick PRO (MSPRO), MS Duo^™, Secure

Digital (SD), Mini-Secure Digital (Mini-SD), Trans-

Flash (SD), MultiMediaCard^™(MMC), Reduced

Size MultiMediaCard (RS-MMC), NAND Flash,

Compact Flash^®(CF) and CF Ultra^™I & II, and

CF form-factor ATA hard drives to USB 2.0 bus

- 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

- Supports USB Bulk Only Mass Storage Com-

pliant Bootable BIOS

• On-Chip 1.8V Regulator for Low Power Core

Operation

• Support for simultaneous operation of all above

devices. (only one at a time of each of the follow-

ing groups supported: CF or ATA drive, SM or XD

or NAND, SD or MMC)

• Internal PLL for 480Mhz USB 2.0 Sampling, Con-

figurable MCU clock

• Supports firmware upgrade via USB bus if “boot

block” Flash program memory is used

• On-Chip 4-Bit High Speed Memory Stick and MS

PRO Hardware Circuitry

• 15 GPIOs for special function use: LED indica-

tors, button inputs, power control to memory

devices, etc.

• On-Chip firmware reads and writes High Speed

Memory Stick and MS PRO

• 1-bit ECC correction performed in hardware for

maximum efficiency

- Inputs capable of generating interrupts with

either edge sensitivity

• Hardware support for SD Security Command

Extensions

- Attribute bit controlled features:

- Activity LED polarity/operation/blink rate

- Full or Partial Card compliance checking

- Bus or Self Powered

• On-chip power FETs for supplying flash media

card power with minimum board components

• USB Bus Power Certified

- LUN configuration and assignment

- Write Protect Polarity

• 3.3 Volt I/O with 5V input tolerance on VBUS/

GPIO3

- SmartDetach Detach from USB when no

Card Inserted for Notebook apps

• Complete USB Specification 2.0 Compatibility for

Bus Powered Operation

- Cover Switch operation for xD compliance

- Inquiry Command operation

- SD Write Protect operation

- Includes USB 2.0 Transceiver

- A Bi-directional Control and a Bi-directional

Bulk Endpoint are provided.

• 8051 8 bit microprocessor

- Older CF card support

- Provides low speed control functions

- Force USB 1.1 reporting

- 30 Mhz execution speed at 4 cycles per

instruction average

- Internal or External Power FET operation

• Compatible with Microsoft WinXP, WinME, Win2K

SP3, Apple OS10, Softconnex, and Linux Multi-

LUN Mass Storage Class Drivers

- 12K Bytes of internal SRAM for general pur-

pose scratchpad

- 768 Bytes of internal SRAM for general pur-

pose scratchpad or program execution while

re-flashing external ROM

• Win2K, Win98/98SE and Apple OS8.6 and OS9

Multi-LUN Mass Storage Class Drivers available

from Microchip

• 128-Pin VTQFP RoHS Compliant Package

(14mm x 14mm footprint, 1.0mm height)

1.xD Picture Card not applicable to USB2227

 2007-2016 Microchip Technology Inc.

DS00002256A-page 1

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与USB2228相关器件

型号	品牌	获取价格	描述	数据表
USB2228-AHZS-XX	SMSC	获取价格	4th Generation USB2.0 Flash Media Controller with Integrated Card Power FETs
USB2228-NE-03	SMSC	获取价格	IC,BUS CONTROLLER,TQFP,128PIN
USB2228-NE-04	SMSC	获取价格	IC,BUS CONTROLLER,TQFP,128PIN
USB2228-NE-XX	SMSC	获取价格	4TH GENERATION USB2.0 FLASH MEDIA CONTROLLER WITH INTEGRATED CARD POWER FETS
USB2228-NU-03	SMSC	获取价格	IC,BUS CONTROLLER,TQFP,128PIN
USB2228-NU-04	SMSC	获取价格	Bus Controller, PQFP128
USB2228-NU-05	SMSC	获取价格	4th Generation USB2.0 Flash Media Controller with Integrated Card Power FETs
USB2228-NU-11	MICROCHIP	获取价格	FLASH MEMORY DRIVE CONTROLLER
USB2228-NU-XX	SMSC	获取价格	4TH GENERATION USB2.0 FLASH MEDIA CONTROLLER WITH INTEGRATED CARD POWER FETS
USB2229	SMSC	获取价格	5TH GENERATION HI-SPEED USB FLASH MEDIA & IrDA CONTROLLER WITH INTEGRATED CARD POWER FETs

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