3.3V-Compatible RoboClocks | Cypress Semiconductor
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What all RoboClocks are 3.3V-compatible?
11). The CMOS-level RoboClocks (CY7B992 and CY7B9920) cannot be made 3.3V-compatible due to their design, which produces rail-to-rail output swings. Two termination networks are shown below, either of which make RoboClock compatible with 3.3V systems. For a more in-depth explanation, an application note, "Using CY7B991 (RoboClock),