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Some background info on the video chip used by TI, Coleco, SEGA, MSX ...

T!9918 9918 9918A TI ColecoVision MSX SEGA SG-1000 TMS9918

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#1 Nebulon OFFLINE  



  • 1,901 posts

Posted Mon Oct 30, 2017 3:51 PM

Info from one of the designers of the Texas Instruments video chip that was famously used in the TI-99. ColecoVision, SEGA SG-1000, MSX, and many other game consoles and computers:
"We were about the cancel the whole 9918 program when Coleco came in 
with Colecovision and the TI Home Computer took off while at the same 
time the MSX computer in Japan (the “MS” standing for Microsoft which 
had a short lived joint venture in Japan) started selling big time 
using the 9918."


"there is a color burst at ~3.58MHz. The 9918’s input clock was ~10.74MHz 
or exactly 3 times the color burst reference."

Also tagged with one or more of these keywords: T!9918, 9918, 9918A, TI, ColecoVision, MSX, SEGA, SG-1000, TMS9918

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