Update: 28 September, 2023
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.
File format: PDF
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MD5 Checksum: 37B2E099ADABCD708448A3556EE441DC
Publication date: 08 May, 2012
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PDF Link: MAXIM MAX3109 Dual Serial UART with 128-Word FIFOs handbook PDF