Mostek (company)

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Mostek was a semiconductor company from Texas , in 1969 by former employees of Texas Instruments was founded. In the late 1970s, it held an 85% share of the global DRAM market before it was ousted by emerging Japanese competition. Mostek was taken over by United Technologies Corporation in 1979 and sold to the French company Thomson in 1985 . Their semiconductor division Thomson Semiconducteurs merged in 1987 with the Italian SGS Microelettronica to form SGS-Thomson, which was renamed STMicroelectronics in 1998 .

Products

Mostek 4096 × 1 bit DRAM MK4027N.

Mostek Z80 microprocessor MK3880.

MOSTEK microcontroller with external EPROM as piggyback

Mostek developed and manufactured dynamic RAMs (DRAM) in different MOS semiconductor technologies . By using multiplexed addresses, i. This means that the address for selecting the row and column of the memory matrix is ​​transferred to the module one after the other, if the number of address lines required has been halved. This was particularly important in the development of ever larger memories. First a 4k × 1 bit DRAM (MK4096 and MK4027) and later a 16k × 1 bit DRAM (MK4116) could be accommodated in a housing with only 16 connections.

When the Zilog company brought the successful 8-bit microprocessor Z80 onto the market in 1976, it was initially manufactured in Mostek's factories. In exchange, Mostek received a license to market the Z80 and associated system ICs as a second source .