The MAX3107 is an advanced universal asynchronous receiver-transmitter (UART) with 128 words each of receive and transmit first-in/first-out (FIFO) that can be controlled through I2C or high-speed SPI™. The 2x and 4x rate modes allow a maximum of 24Mbps data rates. A phase-locked loop (PLL), prescaler, and fractional baud-rate generator allow for high-resolution baud-rate programming and minimize the dependency of baud rate on reference clock frequency. Autosleep and shutdown modes help reduce power consumption during periods of inactivity. A low 640µA (typ) supply current and tiny 24-pin TQFN (3.5mm x 3.5mm) package make the MAX3107 ideal for low-power portable devices. Integrated logic-level translation on the controller and transceiver (RX/TX and RTS/CTS) interfaces enable use with a wide selection of RS-232/RS-485 transceivers. Automatic hardware and software flow control with selectable FIFO interrupt triggering offloads low-level activity from the host controller. Automatic half-duplex
The MAX3107 is a universal asynchronous UART with 128‑word transmit and receive FIFOs that can be controlled via I²C or high‑speed SPI. It supports data rates up to 24 Mbps, includes an integrated PLL, fractional baud‑rate generator, and automatic flow‑control features such as RTS/CTS and XON/XOFF.
The device is offered in 24‑pin SSOP and 24‑pin TQFN packages for use in portable, industrial, automotive, and medical applications. Low‑power autosleep and shutdown modes reduce consumption to a few tens of microamps, making the MAX3107 suitable for battery‑operated designs.
| Maximum data rate | 24 Mbps |
|---|---|
| Analog supply voltage (VA) | 2.35 V to 3.6 V |
| Digital supply voltage (VL) | 1.71 V to 3.6 V |
The MAX3107 supports a maximum data rate of 24 Mbps.