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NVT2001; NVT2002
Bidirectional voltage level translator for open-drain and push-pull applications
R...
www.DataSheet.co.kr
NVT2001; NVT2002
Bidirectional
voltage level translator for open-drain and push-pull applications
Rev. 2 — 26 October 2011 Product data sheet
1. General description
The NVT2001/02 are bidirectional
voltage level translators operational from 1.0 V to 3.6 V (Vref(A)) and 1.8 V to 5.5 V (Vref(B)), which allow bidirectional
voltage translations between 1.0 V and 5 V without the need for a direction pin in open-drain or push-pull applications. Bit widths ranging from 1-bit or 2-bit are offered for level translation application with transmission speeds < 33 MHz for an open-drain system with a 50 pF capacitance and a pull-up of 197 . When the An or Bn port is LOW, the clamp is in the ON-state and a low resistance connection exists between the An and Bn ports. The low ON-state resistance (Ron) of the switch allows connections to be made with minimal propagation delay. Assuming the higher
voltage is on the Bn port when the Bn port is HIGH, the
voltage on the An port is limited to the
voltage set by VREFA. When the An port is HIGH, the Bn port is pulled to the drain pull-up supply
voltage (Vpu(D)) by the pull-up resistors. This functionality allows a seamless translation between higher and lower
voltages selected by the user without the need for directional control. When EN is HIGH, the translator switch is on, and the An I/O are connected to the Bn I/O, respectively, allowing bidirectional data flow between ports. When EN is LOW, the translator switch is off, an...