Texas Instruments TMS9900
Sign in to saveAlso known as TMS9900
The TMS9900 was one of the first commercially available single-chip 16-bit microprocessors. Introduced in June 1976, it implemented Texas Instruments's TI-990 minicomputer architecture in a single-chip format, and was initially used for low-end models of that lineup.
~20 min read
Encyclopedic overview
10 sectionsContents
- History
- Architecture
- Instruction set and addressing
- Implementation
- Applications
- TMS9900 family product development
- Variants
- Notes
- References
- External links
The TMS9900 was one of the first commercially available single-chip 16-bit microprocessors. Introduced in June 1976, it implemented Texas Instruments's TI-990 minicomputer architecture in a single-chip format, and was initially used for low-end models of that lineup.
Its 64-pin DIP format made it more expensive to implement in smaller machines than the more common 40-pin format, and it saw relatively few design wins outside TI's own use. Among those uses was their TI-99/4 and TI-99/4A home computers, which ultimately sold about 2.8 million units.
Excerpted from Wikipedia’s “Texas Instruments TMS9900” article, available under the CC BY-SA 4.0 licence.