USB 2.0 Dual-Channel Flash Controller
SM324

Overview

SM324 is the latest USB Flash Disk controller with highly compatibility, and best performance intended for supporting Dual-Channel SLC & MLC NAND type Flash memory in one chip. Based on 0.162um fabricated technology and low power consumption consideration, SM324 complies with USB power specification ver.2.0 for bus-powered devices. For USB2.0 Flash Disk application, SM324 supports high capacity up to 8 data Flash banks, “Write Protect” function, PC boot-up from USB2.0 Flash Disk, Password protection, and Secured Partitioning functions.
To offer customers an expandable platform, SM324 supports Master and Slave SPI (Serial Peripheral Interface) mode for flexible applications such as fingerprint sensor. SM324 controller also delivers extremely high data transfer rate and correct data through reliable ECC engine. By integrating 5V to 3.3V regulator and Power-on-Rest components, it will help customers to save overall cost. SM324 is available with 64pins QFP package with a manufacturing-ready turnkey solution now.


Features

  • Completes USB specification ver.2.0 compatibility
  • Complies with USB Mass Storage Class specification ver.1.0
  • Bulk Only transport protocol
  • Complies with USB power specifications for bus-powered devices
  • Operating system supported: Windows XP/2000/Me/98/98SE, Mac OS 9.X/X, Linux Kernel 2.4 and above.
  • Master & Slave SPI (Serial Peripheral Interface) for flexible applications.
  • ISP (In System Programming) firmware update capability.
  • Supports dual channel for Flash memory, averaged data transfer rate up to 30* MB/sec
  • Compatible with 16Mbyte~1Gbyte NAND type Flash and up to 8 banks
  • Supports MLC Flash Memory with 4 bit ECC.
  • Supports VID, PID, serial number & vender information update
  • Provides LED indicator when USB Flash Disk is in Ready/Working mode
  • Supports “Write Protect” security function to protect data in UFD
  • Supports suspend and wake-up resume
  • Integrated 80C51 compatible 8-bit microprocessor with enhanced feature - 1 clock per machine cycle
  • 12MHz crystal driver circuit
  • Fabricated in 0.162um CMOS process
  • 1.8 Volts low power core operation
  • Operates on a single power supply (Vdd = 5.0V)
  • Available in 64-pin QFP(7mmx7mm) package
    *This figure may vary on different platform

SM324 Block Diagram

 
 

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