Analog Devices / Maxim Integrated MAX14830 Quad Serial UART
Analog Devices MAX14830 Quad Serial UART features 128 words of receive and transmit first-in/first-out (FIFO) and a high-speed serial peripheral interface (SPIK) or I2C controller interface. A PLL and fractional baud-rate generators allow a high degree of flexibility in baud-rate programming and reference clock selection. Logic-level translation on the transceiver and controller interfaces allows ease of interfacing with microcontrollers, FPGAs, and transceivers that are powered by differing supply voltages. Extensive features simplify transceiver control in halfduplex communication applications. Maxim MAX14830 features the ability to synchronize the start of an individual UART's transmission by SPI-based triggering. On-board timers allow programming of delays between transmitters as well as clock generation on GPIOs. The 128-word FIFOs have advanced FIFO control, reducing host processor data flow management. Analog Devices MAX14830 Quad Serial UART is specified to operate over the extended -40ºC to +85ºC temperature range.MAX14830 Evaluation Kit (EV kit) provides a proven design to evaluate the MAX14830. The EV kit operates from a +3.3V and a +24V DC supply and requires 100mA of current from each supply. This EV kit requires a user-supplied SPI/I2C controller and software. The EV kit comes with a MAX14830ETM+ installed.
Features
- SPI Up to 26MHz clock rate
- Fast-mode plus (Fm+) I²C interface up to 1MHz
- 128-Word transmit and receive FIFOs per UART
- 6Mbaud (max) Data rate in 16x sampling mode
- 12/24Mbaud (max) Data rate in 2x/4x rate modes
- Fractional baud-rate generators, predivider, and Phase-Locked Loop (PLL)
- Transmitter synchronization through SPI commands
- Four timers routed to GPIOs
- Automatic hardware flow control using active-low RTS_ and active-low CTS_ outputs and inputs
- Automatic software flow control (XON/XOFF)
- Auto transceiver direction control
- Programmable setup and hold times for transceiver control
- Auto transmitter disable
- Half-duplex echo suppression
- Special character detection
- 9-Bit multidrop mode address detection and filtering
- SIR- and MIR-compliant IrDA® encoder/decoders
- 16 Flexible GPIOs with 20mA drive capability
- +2.35V to +3.6V Supply range
- Logic-level translation down to 1.61V on controller and transceiver interfaces
- Small TQFN (7mm x 7mm) package
Applications
- Airplane communication buses
- Automotive infotainment systems
- Industrial control systems
- IO-Link master controllers
- Medical systems
- Point-of-sales systems
- Programmable Logic Controllers (PLC)
Functional Block Diagram
Opublikowano: 2013-02-11
| Zaktualizowano: 2023-04-13
