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Can the VPP pin be connected to VSS via pull-down resistor?

Latest Updated:12/01/2011

Question:

When using the flash version of the uPD78F9418A, the VPP pin must be connected to VSS when it is not used; but is it necessary to connect it directly to VSS?
Can the VPP pin be connected to VSS via a pull-down resistor (several kΩ to several tens of kΩ)?

Answer:

No, VPP does not have to be connected directly to VSS.
It can be connected to VSS via a pull-down resistor of approximately 10kΩ.
However, in this case malfunction may occur due to system noise, so the customer should evaluate this carefully.
Suitable Products
UPD1793xx
UPD7800xx
UPD7803xx
UPD7807xx
UPD7808xx
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UPD780xx
UPD7890xx/7891xx
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UPD7893xx/7894xx
UPD7898xx
UPD784xxx