MaxLinear XR21x14x Universal Async Receiver Transmitters
MaxLinear XR21x14x Universal Asynchronous Receiver Transmitters with USB 2.0 compliant bus interface are part of a fast UART series. The USB interface on the MaxLinear XR21x14x supports a 12Mbps USB data transfer rate, USB suspend, resume, and remote wakeup operations. These MaxLinear UARTs operate from an internal 48MHz clock, require no external crystal/oscillator, and can accurately generate any baud rate using the internal clock. The UART series includes an automatic transceiver direction control feature that simplifies the hardware for RS-485 applications. The XR21x14x UART is ideal for portable appliances, external converters (dongles), and battery-operated devices.Features
- USB 2.0 compliant interface
- Supports 12Mbps USB full-speed data rate
- Supports USB suspend, resume, and remote wakeup operations
- Enhanced features of each UART
- Data rates up to 12Mbps
- Fractional baud rate generator
- 128-byte TX FIFO
- 384 byte RX FIFO
- 7, 8, or 9 data bits, 1 or 2 stop bits
- Automatic hardware (RTS/CTS or DTR/DSR) flow control
- Automatic software (Xon/Xoff) flow control
- Multidrop mode w/ auto half-duplex transceiver control
- Multidrop mode w/ auto TX enable
- Half-duplex mode
- Sleep mode with remote wakeup
- Selectable GPIO or modem I/O
- Internal 48MHz clock
- Single 2.97-3.63V power supply
- 5V tolerant inputs
- 16-pin QFN, 32-pin QFN, or 48-pin TQFP package
- Virtual COM port drivers
- Windows 2000, XP, and Vista
- Windows CE 4.2, 5.0, 6.0
- Linux
- Mac
Applications
- Portable appliances
- External converters (dongles)
- Factory automation and process controls
- Cellular data devices
- Battery-operated devices
- Industrial applications
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Published: 2019-05-01
| Updated: 2025-06-19
