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 5-pin and 6-pin SC70 packages, respectively.
The MAX3370 and MAX3371 provide bidirectional level translation between low‑voltage ASICs and higher‑voltage devices. They accept VL supply from 1.6 V to 5.5 V and VCC supply from 2.5 V to 5.5 V, and support data rates 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 pA and places I/O pins in a high‑impedance state.
Typical applications include cell‑phone cradles, portable POS systems, smart‑card readers, and I²C level translation. The devices are supplied in 5‑pin (MAX3370) and 6‑pin (MAX3371) SC70 packages and feature internal 10 kΩ pull‑up resistors for open‑drain operation.
| VCC Supply Voltage Range | 2.5 V to 5.5 V |
|---|---|
| VL Supply Voltage Range | 1.6 V to 5.5 V |
| Shutdown Supply Current (MAX3371) | <1 pA |
| Maximum Data Rate (push‑pull, 10 pF load) | 2 Mbps |
| Maximum Data Rate (open‑drain, 30 pF load) | 500 kbps |
| Operating Temperature Range | -40 °C to +85 °C |
The MAX3371 shutdown supply current is less than 1 pA.
They operate up to 2 Mbps with an active driver and up to 500 kbps with an open‑drain driver.
The MAX3370 is offered in a 5‑pin SC70 package and the MAX3371 in a 6‑pin SC70 package.
The devices are rated for -40 °C to +85 °C.