Maxim 128-WORD Manuals

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 MAX3109 is an advanced dual universal asynchronous receiver-transmitter (UART) with 128 words of receive and transmit first-in/first-out (FIFO) and a high-speed SPI or I2C controller interface. It supports a maximum data rate of 24Mbps and offers flexibility in baud-rate programming and reference clock selection with the phase-locked loop (PLL) and fractional baud-rate generators. The MAX3109 also features independent logic-level translation on the transceiver and controller interfaces, making it easy to interface with microcontrollers, FPGAs, and transceivers powered by differing supply voltages. It supports automatic hardware and software flow control with selectable FIFO interrupt triggering to offload low-level activity from the host controller. The MAX3109 also supports automatic half-duplex transceiver control with programmable setup and hold times, making it suitable for high-speed applications such as PROFIBUS-DP. It is available in a 32-pin TQFN (5mm x 5mm) package and specified for the -40°C to +85°C extended temperature range.