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Diodes Incorporated 74AUP1T34x Single-Bit Dual Translating Buffers

Diodes Incorporated 74AUP1T34x Single-Bit Dual Translating Buffers are single-bit, dual-supply, noninverting buffer translators designed for transmitting a single logic bit via different voltage domains. The 74AUP1T34x is a unidirectional translator from A to Y. The input pin A operates from 0.9V to 3.6V and has input switching thresholds related to VCCA. The output pin Y has a HIGH-level output voltage that tracks VCCB, also operating from 0.9V to 3.6V. This configuration enables universal low-voltage translation between any voltages from 0.9V to 3.6V.

The three-state feature of the Diodes 74AUP1T34x occurs when the VCCA power supply voltages are zero. This IOFF feature allows the output to stay in a high-impedance state, deterring damaging backflow currents and supplying 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 housed in the X2-DFN1410-6, SOT353, and X2-DFN1010-6 packages, and is specified from -40°C to +125°C. The wide temperature ranges and high ESD tolerance promote using the 74AUP1T34x in harsh applications.

Features

  • Wide supply voltage range:
    • VCC(A) from 0.9V to 3.6V
    • VCC(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)
  • IOFF supports partial-power-down mode operation
  • IOFF 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 and fully RoHS compliant
  • Halogen and antimony-free, “Green” device

Applications

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

Pin Assignments

Location Circuit - Diodes Incorporated 74AUP1T34x Single-Bit Dual Translating Buffers
Yayınlandı: 2024-06-25 | Güncellenmiş: 2024-07-22