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MaxLinear XR21B1422IL40-F product image
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MaxLinear XR21B1422IL40-F

Manufacturer
MaxLinear
MPN
XR21B1422IL40-F
LCSC Part #
C916006
Packaging
QFN-40-EP(6x6)
Customer #
Key Attributes
XR21B1422 Enhanced UART-to-USB Interface Bridge
Datasheetpdf iconMaxLinear XR21B1422IL40-F
In-Stock: 18
18 In stock, ships now
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QtyUnit PriceTotal Amount
1+$ 3.2571$ 3.26
10+$ 2.7871$ 27.87
30+$ 2.5081$ 75.24
100+$ 2.2258$ 222.58
490+$ 2.0969$ 1027.48
980+$ 2.0381$ 1997.34
Standard Packaging490/Full Tray
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Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Interface/Controllers
ManufacturerMaxLinear
PackagingQFN-40-EP(6x6)
Voltage - Supply3V~5.25V
FeaturesProgrammable baud rate;FIFO buffer;Hardware flow control support;Power-on reset;Wake-up function;Built-in clock generator
Operating Temperature-40℃~+85℃
Applications FunctionUSB to UART
Quiescent Supply Current850uA
USB ProtocolUSB 2.0
Current - Supply15mA
Number of Channels2
Data Rate12Mbps
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Introduction

AI Translation

The XR21B1422 is an enhanced Universal Asynchronous Receiver and Transmitter (UART) bridge to USB interface. The USB interface is fully compliant to the USB 2.0 (Full-Speed) specification with 12 Mbps USB data transfer rate. The USB interface also supports USB suspend, resume and remote wakeup operations. The USB Vendor ID, Product ID, power mode, remote wakeup support, maximum power, and numerous other settings may be programmed in the on-chip OTP memory via the USB interface. The XR21B1422 includes an internal oscillator and does not require an external crystal/oscillator. Any UART baud rate from 300 bps to 12 Mbps may be generated with this internal clock and the fractional baud rate generator. The UART pins for each port may also be configured as GPIO; direction, state, output driver type and input pull-up or pull-down resistors are programmed either through on chip OTP, or on the fly via memory mapped registers. Large 512-byte TX and RX FIFOs prevent buffer overflow errors and optimize data throughput. Automatic half-duplex direction control and optional multi drop (9-bit) mode simplify both hardware and software in half-duplex RS-485 applications. Wide mode allows for each individual received character to be monitored for errors. The XR21B1422 uses the native OS CDC-ACM driver or a MaxLinear supplied custom driver. MaxLinear provides WHQL-certified software drivers for Windows XP, Vista, 7, 8, 8.1,10, and 11 as well as custom software drivers for Linux. Full source code is available.

Features

AI Translation
  • ±15KV ESD on USBD + /USBD
  • USB 2.0 Compliant, Full-Speed (12Mbps)
  • Unique pre-programmed USB serial number
  • Internally generated 48MHz core clock
  • Enhanced UART features
  • Baud rates from 300 bps to 12 Mbps
  • Fractional Baud Rate Generator
  • 512-byte TX and 512-byte RX FIFOs
  • Auto Hardware / Software Flow Control
  • Multidrop and Half-Duplex Modes
  • Auto RS-485 Half-Duplex Control
  • Selectable GPIO or Modem I/O
  • Up to 10 GPIOs per channel
  • 5V tolerant GPIO inputs
  • Suspend state GPIO configuration
  • Configurable clock output
  • 40-pin QFN package
  • Industrial -40°C to +85°C Temperature Range

Applications

AI Translation
  • Building Automation
  • Security Systems
  • Factory and Process Control
  • ATM Terminals
  • USB to Serial Controllers