CY545

In 1979 Cybernetic Micro Systems invented the first Single Chip Stepper Motor Controller, the CY500. Since then we have continued to design improved versions, the CY512 (1981), the CY525 (1983). This manual introduces our (1988) fourth generation device, the CY545 Stepper System Controller. A fifth generation device (1993) the CY550 is also available. The CY545 is the first Stepper Motor System Controller chip, to offer completely new features, such as:
• 27,000 Steps/Sec
• Million step motions
• Serial or Parallel interface
• LED display interface
• LCD display interface
• Thumbwheel switch interface
We believe this device offers all of the features you want to implement sophisticated motion control systems at very low cost.

For example, our CY500, CY512 and CY525 controllers work best in systems with a host computer that issues single commands, or sequences of commands as a program, to the controller, and then tends to other system functions while the Stepper Motor Controller is running the motor. Maximum performance is gained when the host CPU is closely coupled to the Stepper Motor Controller IC.

While the CY545 is also capable of working with a host CPU in a closely coupled fashion, the CY545 contains extensions that allow it to function very well in a stand-alone system. In fact, it is possible to base a simple controller design around the CY545, and operate a machine with no CPU at all, bringing the benefits of intelligent, programmable stepper motor control to applications that do not justify a host computer system.