MC6809 was actually launched in 1979, like MC68000, about one year after the launch of 8086 in 1978 by Intel.
What Motorola did in 1978 was to publish some articles in the specialized magazines, announcing MC6809 as the future better replacement for their existing MC6800 derivatives. This is the same like Intel describing during last year how great will be their Panther Lake CPU, but Panther Lake has really been launched only a couple of days ago.
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MC6809 was actually launched in 1979, like MC68000, about one year after the launch of 8086 in 1978 by Intel.
What Motorola did in 1978 was to publish some articles in the specialized magazines, announcing MC6809 as the future better replacement for their existing MC6800 derivatives. This is the same like Intel describing during last year how great will be their Panther Lake CPU, but Panther Lake has really been launched only a couple of days ago.