Second Sources
A common requirement for manufacturing companies was to require two or more sources for every part in the products they made. This ensured they could get parts if a supplier had financial problems or a disaster. Initially Motorola selected American Microsystems Inc (AMI) as a second source for the M6800 family. Hitachi, Fujitsu, Fairchild, Rockwell and Thomson Semiconductors were added later.
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AMI S6800 MPU
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Fairchild F6802P and an AMI S6820 PIA
Read more about this topic: Motorola 6800
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