In addition to the actual microchips, WDC offers chips designs in the form of IP cores to be used inside other chips (like ASICs), and provides ASIC and embedded systems consulting services revolving around their processor designs. WDC also makes C compilers, assembler/linker packages, simulators, development/evaluation boards, and in-circuit emulators for their processors.
|W65C02S||8-bit CPU||Bug-fixed CMOS version of the originally NMOS-based 6502|
|W65C134S||8-bit µC||Microcontroller with W65C02S CPU core|
|W65C21S||I/O chip||Compatible with the 6520 Peripheral Interface Adapter (PIA)|
|W65C22S||I/O chip||Compatible with the 6522 Versatile Interface Adapter (VIA)|
|W65C51S||I/O chip||Serial comms chip compatible with the 6551 Asynchronous Communications Interface Adapter (ACIA)|
|W65C816S||16-bit CPU||16-bit compatible follow-up to the W65C02; 24-bit address bus|
|W65C802S||16-bit CPU||65816 version with 16-bit address bus; pin-compatible drop-in replacement for 6502 (no longer available)|
|W65C265S||16-bit µC||Microcontroller with W65C816S CPU core|
|W65T32 Terbium(1)||32-bit CPU||A compatible 32-bit follow-up to the W65C816. The Terbium is named after the 65th element as 65 is the prefix to all of WDC's microprocessor number identifiers. The chip has a 32-bit address bus, a 16-bit data bus, and a variable length instruction set.|
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