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What is a suitable write clock when writing to the uPD78F9418?

Latest Updated:12/01/2011

Question:

What is a suitable write clock when writing to the uPD78F9418?
I would like to know the suitable MIN and MAX clock speeds.
The target devices are the uPD78F9418A and uPD78F0988.

Answer:

It is recommended to make the CPU clock as fast as possible.
Basically, any clock speed is all right as long as it is within the operation enabled clock range.
However, the use of a faster clock allows faster programming.
Moreover, in the case of UART connection, the clock must be 5MHz or 4.91MHz for the uPD78F9418A.
Suitable Products
UPD78098x
UPD78941xA