Rockwell R65C02P4
Specifications:
- CMOS technology
- Low Power (4mA/MHz)
- Single 5V power supply requirements
- 8-bit bidirectional data bus
- Speed: 4MHz
These chips can be used as replacements in the Apple II computers and other retro computers that can run CMOS microcontrollers.
I have tested these chips in my custom 6502 tester and confirm they run code at 4MHz
The datasheet can be downloaded here.
