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SMSC USB97C242 User Manual

Datasheet, Usb 2.0 flash drive controller, Ordering information

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SMSC USB97C242

Page 1

Revision 1.4 (05-03-07)

DATASHEET

USB97C242

USB 2.0 Flash Drive
Controller

Datasheet

Product Features

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2.5 Volt, Low Power Core Operation

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3.3 Volt I/O with 5V input tolerance

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Complete USB Specification 2.0 Compatibility

− Includes USB 2.0 Transceiver
− A Bi-directional Control and a Bi-directional Bulk

Endpoint are provided.

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Complete 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.

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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 with external flash

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Double Buffered Bulk Endpoint

− Bi-directional 512 Byte Buffer for Bulk Endpoint
− 64 Byte RX Control Endpoint Buffer
− 64 Byte TX Control Endpoint Buffer

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Internal or External Program Memory Interface

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

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On Board 12Mhz Crystal Driver Circuit

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

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

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

− Inputs capable of generating interrupts with either

edge sensitivity

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100 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