Digital Input Voltages | Cypress Semiconductor
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Digital Input Voltages
Last Updated: November 29, 2010
Are digital input voltages the same at both 3.3V and 5V?
Yes, the digital input VIH and VIL levels are same for Vdd from 3 V to 5.25V in most of the devices. Please see the DC GPIO Specifications in the device data sheet for details.