[sci.electronics] Looking for docs/sources for a Hitachi HA 13421 stepper driver

bryce@hoser.berkeley.edu (Bryce Nesbitt) (09/12/87)

A friend has been looking for this.  The local Hitachi reps all say that
it was discontinued in early 1987 and they have no docs.  The chip is
commonly used in Japaneese disk drives.

If anyone has a pinout that would be most appreciated.


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