74AUP1T34

Description

The 74AUP1T34 is a single-bit, dual-supply, noninverting buffer translator suitable for transmitting a single logic bit across different voltage domains. It is a unidirectional translator from A to Y. The input pin A has input switching thresholds related to VCCA, operating from 0.9V to 3.6V. The output pin Y has a HIGH level output voltage that tracks VCCB, also operating from 0.9V to 3.6V. This arrangement allows for universal low-voltage translation between any voltages from 0.9V to 3.6V.

The three-state feature occurs when the VCCA power-supply voltages are zero. This is also an IOFF feature and allows the output to remain in a high-impedance state, preventing damaging backflow currents and providing power-down electrical isolation of up to 3.6V. If the VCCB is at ground, the input circuits at pin A are disabled and no input current flows regardless of any applied voltage between 0V and 3.6V.

The 74AUP1T34 is available in the SOT353, X2-DFN1410-6, and X2- DFN1010-6 packages, and is specified for operation from -40°C to +125°C among all supply voltages. The wide temperature ranges and high ESD tolerance facilitate their use in harsh applications.

Feature(s)

• Wide Supply Voltage Range:
  • V_CC(A): from 0.9V to 3.6V
  • V_CC(B): from 0.9V to 3.6V
• ±6mA Output Drive at 3V
• Low-Static Power Consumption; ICC = 5μA (Maximum)
• High Noise Immunity (100mV Hysteresis Typical)
• I_OFF Supports Partial Power-Down Mode Operation
• I_OFF Controlled by VCCB Being at 0V
• Input Isolation when VCCA is Ground; No Input Current Even when Floating
• ESD Protection Exceeds JESD 22
  • Exceeds 5000V Human Body Model (A114)
  • Exceeds 1000V Charged Device Model (C101)
• Latch-Up Exceeds 100mA per JESD 78, class II
• Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
• Halogen and Antimony Free. “Green” Device (Note 3)
• An automotive-compliant part is available under separate datasheet (74AUP1T34Q)

Application(s)

• Voltage level translation:
  • Well suited to join logic types operating at different voltages
• Power-down signal isolation:
  • When V_CCA = GND output is three-state
  • When V_CCB = GND input is disabled and may be left floating
• Wide array of products such as:
  • Cell phones, tablets, e-readers
  • PCs, notebooks, netbooks, ultrabooks
  • Networking, routers, gateways
  • Personal electronics
  • Telecommunications
  • Industrial devices