Western Design Center, Inc. (WDC) Founded in 1978 by William D. Mensch, Jr., WDC has licensed its 65xx brand microprocessor Intellectual Property (IP/Cores) to the electronics industry since 1981. WDC is considered a pioneer in the design and licensing of microprocessor technology Intellectual Property (IP) cores and inspired Acorn engineers to create the wildly popular ARMxx series of microprocessors. GTE, Rockwell, MOS Technology, Synertek and NCR were some of WDC's first licensees. In addition, WDC began selling 65xx brand microprocessor chips to Apple Computer in 1984 making it the first supplier of microprocessors as a fabless semiconductor company.
Western Design Center (WDC) offers various interface adapters that are easily implemented, program controlled interfaces between 8-bit microprocessor based systems and serial communication data sets and modems. WDC offers Asynchronous Communications Interface Adapter (ACIA), Peripheral Interface Adapter (PIA), and Versatile Interface Adapters (VIA). Each is designed to help interface between 8-bit microprocessors and various peripheral devices.
Western Design Center W65C134S 8-bit and W65C265S 16-bit Microcontrollers are designed for Hi-Rel applications in which minimum power is required. The Western Design Center W65C134S 8-bit MCUs consist of a W65C02S Static CPU, 4096 bytes of ROM, 192 bytes of RAM, two 16-bit timers, and more. WDC W655C265S MCUs include a W65C816S Static CPU, 8Kb ROM, 576 bytes of RAM, processor-defined cache under software control, and more. The innovative architecture and demonstrated high performance of WDC W65C134S and W65C256S MCUs result in system cost-effectiveness and a wide range of computational power.
Western Design Center W65C816S 8- / 16-bit Microprocessors are fully static CMOS devices that extend addressing to a full 16MB. Western Design Center W65C816S Microprocessors offer the advantages of CMOS technology, including increased noise immunity, higher reliability, and greatly reduced power requirements. WDC W65C816S MPUs include a software switch that determines whether the processor is in 8-bit emulation mode or in the native mode, allowing existing systems to use the expanded features. These WDC microprocessors include full 16-bit ALU, Accumulator, Stack Pointer, and Index Registers. The W65C816S also provides low power consumption (300µA@1MHz).
Western Design Center W65C02S 8-bit Microprocessors are low-power, cost-sensitive devices with a fully static core and a PHI2 clock that can be stopped when it is in high or low state. Western Design Center W65C02S MPUs have a variable-length instruction set and a manually optimized core size that make these devices an excellent choice for low power System-on-Chip (SoC) designs. The WDC W65C02S has a 16-bit address bus providing access to 65,536 bytes of memory space. These 8-bit microprocessors also feature low power consumption (150µA@1MHz).