SMSC USB97C242 User Manual

SMSC USB97C242 

Page 1 

Revision 1.4 (05-03-07) 

 

 

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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 

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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

 

 

 

 

 

 

USB97C242-MN-xx for 100 pin TQFP package 

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