Filter
Top Products
SMSC USB97C242 Page 1 Revision 1.4 (05-03-07)
DATASHEET
USB97C242
USB 2.0 Flash Drive
Controller
Datasheet
Product Features
2.5 Volt, Low Power Core Operation
3.3 Volt I/O with 5V input tolerance
Complete USB Specification 2.0 Compatibility
− Includes USB 2.0 Transceiver
− A Bi-directional Control and a Bi-directional Bulk
Endpoint are provided.
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.
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
Double Buffered Bulk Endpoint
− Bi-directional 512 Byte Buffer for Bulk Endpoint
− 64 Byte RX Control Endpoint Buffer
− 64 Byte TX Control Endpoint Buffer
Internal or External Program Memory Interface
− 48K Byte Internal Code Space or optional 64K Byte
External Code Space using Flash, SRAM, or
EPROM memory.
On Board 12Mhz Crystal Driver Circuit
Internal PLL for 480Mhz USB2.0 Sampling,
30Mhz MCU clock
Supports firmware upgrade via USB bus if sector-
erasable Flash program memory is used
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
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