Important announcement about TI Speech product line changes

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Dear Customer/Distributor:

Texas Instruments Inc. (TI), Semiconductor Group announced on June 18, 1998, the closing of the LMOS wafer fabrication facility located in Lubbock, Texas. LMOS is scheduled for closing on December 31, 1998.

Because TI does not have a compatible process in other wafer facilities necessary to produce some of the mature Speech product families, TI is discontinuing the following parent devices which lack the demand to warrant alternative solutions. The discontinued devices include:

TSP50C4x Family
TSP50C41
TSP50C42
TSP50C43
TSP50C44
TSP53C30A
TMS50C20

MSP50C5x Family
MSP50C51
MSP50C52
MSP50C53
MSP50P52

TSP60Cxx Family
TSP60C18
TSP60C19
TSP60C20
TSP60C21
TSP60C80
TSP60C81
TSP50P11**

** The TSP50P11 will continue to be available in prototyping quantities only with a limit of 100 units per custom code.

For more information on this issue, please contact your TI sales representative, or:

Steve Turner
MSP Account Manager
PO Box 660199, M/S 8710
Dallas, TX 75266-0199
E-mail: s-turner2@ti.com

Please note that the following Speech device families will NOT be obsoleted by the LMOS closing:

TSP50C0x
TSP50C1x
MSP50C3x
MSP50P34
MSP50P37
Catalog parts TSP53C32, TSP53C33, TSP53C34, TSP53C35 and TSP53C36.
Additional new speech device families planned for 1999 release.

TEXAS INSTRUMENTS INCORPORATED
Semiconductor Group