W65C22S Datasheet, PDF (45/46 Pages) List of Unclassifed Manufacturers – Versatile Interface Adapter (VIA)

The Western Design Center, Inc.
W65C22S Data Sheet
5. SECTION 5 HARD CORE MODEL
Application Notes
5.1 The W65C22C is functionally equivalent to the W65C22S except it does not have the output
drive transistors and does not have ESD protection.
5.2 If Chip Select, CS1 is not used, it should be held in the high state. If Chip Select, CS2B, is not used
it should be held in the low state.
5.3 The timing of the W65C22C is the same as the W65C22S in that the input buffers are the same and
the output transistor drivers are the same as the W65C22S. When applying the W65C22S core, the output
delays should be analyzed after adding the output drive transistors and the output load capacitance.
The Western Design Center
W65C22S
45