USB97C242USB 2.0 Flash DriveController

Datasheet

Product Features

ƒ2.5 Volt, Low Power Core Operation

ƒ3.3 Volt I/O with 5V input tolerance

ƒComplete USB Specification 2.0 Compatibility

−Includes USB 2.0 Transceiver

−A Bi-directional Control and a Bi-directional Bulk Endpoint are provided.

ƒComplete System Solution for interfacing SmartMedia (SM), and NAND flash devices to USB 2.0 bus

−Supports USB Bulk Only Mass Storage Compliant Bootable BIOS

−Support for the following devices:

-SM: 2M –15MB/sec

-NAND Flash: 2M – 15MB/sec

−Built-in hardware 1-bit ECC support.

ƒ8051 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 with external flash

ƒDouble Buffered Bulk Endpoint

−Bi-directional 512 Byte Buffer for Bulk Endpoint

−64 Byte RX Control Endpoint Buffer

−64 Byte TX Control Endpoint Buffer

ƒInternal or External Program Memory Interface

−48K Byte Internal Code Space or optional 64K Byte External Code Space using Flash, SRAM, or EPROM memory.

ƒOn Board 12Mhz Crystal Driver Circuit

ƒInternal PLL for 480Mhz USB2.0 Sampling, 30Mhz MCU clock

ƒSupports firmware upgrade via USB bus if sector- erasable Flash program memory is used

ƒ7 GPIOs for special function use: LED indicators, button inputs, power control to memory devices, etc.

−Inputs capable of generating interrupts with either edge sensitivity

ƒ100 Pin TQFP (12x12x1.4 body) Lead-Free RoHS Compliant Package also available

ORDERING INFORMATION

Order Number(s):

USB97C242-MN-xx for 100 pin TQFP package

USB97C242-MV-04 for 100 pin TQFP Lead-Free RoHS Compliant Package

SMSC USB97C242

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Revision 1.4 (05-03-07)

DATASHEET