SN74AUP1T34 - 1-Bit Unidirectional Voltage-Level Translator

The SN74AUP1T34 device is a 1-bitnoninverting translator that uses two separate configurable power-supply rails. It is auni-directional translator from A to B. The A port is designed to trackV_CCA. V_CCA accepts supply voltages from 0.9 V to 3.6V. The B port is designed to track V_CCB. V_CCB acceptssupply voltages from 0.9 V to 3.6 V. This allows for low-voltage translation between 1-V, 1.2-V,1.5-V, 1.8-V, 2.5-V, and 3.3-V voltage nodes. The SN74AUP1T34 is also fully specified forpartial-power-down applications using I_off. The I_offcircuitry disables the outputs, preventing damaging current backflow through the device when it ispowered down.

The VCC isolation feature ensures that if V_CCA input is at GND,the B port is in the high-impedance state. If V_CCB input is at GND, anyinput to the A side does not cause the leakage current even floating.

• Wide Operating VCC Range of 0.9 V to 3.6 V
• Balanced Propagation Delays: t_PLH = t_PHL (1.8-V to 3.3-V Translation Typical)
• Low Static-Power Consumption: Maximum of 5-µA ICC
• ±6-mA Output Drive at 3 V
• I_off Supports Partial Power-Down-Mode Operation
• VCC Isolation Feature – If V_CCA Input Is at GND, B Port Is in the High-Impedance state
• Input Hysteresis Allows Slow Input Transition and Better Switching Noise Immunity at Input
• ESD Protection Exceeds JESD 22
• 5000-V Human-Body Model (A114-A)
• Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II

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