The MAX3370/MAX3371 logic-level translators are ideal for applications interfacing low-voltage devices to other logic levels. Externally applied voltages set the logic levels of the MAX3370/MAX3371. The devices accept VCC from +2.5V to +5.5V and VL from +1.6V to +5.5V, allowing data transfer between low-voltage ASICs and higher voltage devices. The MAX3371 features a shut- down mode that reduces supply current to < 1µA and puts the I/O pins in a high-impedance state. The MAX3370/MAX3371 are bidirectional level shifters, allowing data transfer from the VCC side to the VL side and from the VL side to the VCC side. Both devices operate at speeds up to 2Mbps with an active driver and up to 500kbps with an open-drain driver. The MAX3370/MAX3371 are available in space-saving µDFN (1mm x 1.5mm) and SC70 packages.
The MAX3370 and MAX3371 are bidirectional logic‑level translators designed for interfacing low‑voltage ASICs to higher‑voltage devices. They support supply voltages from 2.5 V to 5.5 V (VCC) and 1.6 V to 5.5 V (VL), and operate up to 2 Mbps with an active driver or 500 kbps with an open‑drain driver. The MAX3371 includes a shutdown mode that reduces supply current to less than 1 µA.
Both devices are offered in ultra‑compact µDFN (1 mm × 1.5 mm) and SC70 packages and feature internal 10 kΩ pull‑up resistors, making them suitable for I²C, SPI, Microwire and other low‑voltage communication interfaces. The datasheet provides detailed electrical characteristics, timing diagrams, pin descriptions, and recommended layout guidelines.
| VCC Supply Range | 2.5 V to 5.5 V |
|---|---|
| VL Supply Range | 1.6 V to 5.5 V |
| Operating Temperature Range | -40 °C to +85 °C |
| Maximum Data Rate (active driver) | 2 Mbps |
The MAX3371 shutdown mode reduces supply current to less than 1 µA.
A 0.1 µF capacitor should be placed close to the device between VCC/VL and ground.
Both parts are offered in µDFN (1 mm × 1.5 mm) and SC70 packages.
Up to 2 Mbps can be achieved when driven by an active (push‑pull) driver.