The SN74LXC1T14-Q1 is a single bit translating transceiver that uses two individually configurable power-supply rails. The device is operational with both V_CCI and V_CCO supplies as low as 1.1 V and as high as 5.5 V. The A input is designed to track V_CCI, and the Y output is designed to track V_CCO.

The SN74LXC1T14-Q1 device is designed for asynchronous communication between devices, and transmits data from A to Y. The input circuitry on the A pin is always active and must have a logic HIGH or LOW level applied to prevent excess I_CC and I_CCZ.

This device is fully specified for partial-power-down applications using the I_off current. The I_off protection circuitry ensures that no excessive current is drawn from or sourced into an input or output while the device is powered down.

The V_CC isolation or V_CC disconnect feature ensures that if either V_CC is less than 100 mV or disconnected with the complementary supply within recommended operating conditions, the input is weakly pulled-down and then set to the high-impedance state by disabling their outputs while the supply current is maintained. The I_off-float circuitry ensures that no excess current is drawn from or sourced into an input, or output while the supply is floating.

Glitch-free power supply sequencing allows either supply rail to be powered on or off in any order while providing robust power sequencing performance.