XR16V2550 High Performance DUART with 16-Byte FIFO
The XR16V25501 (V2550) is a high performance dual universal asynchronous receiver and transmitter (UART) with 16 bytes TX and RX FIFOs. The device operates from 2.25 to 3.6 volts with 5 Volt tolerant inputs and is pin-to-pin compatible to Exar's ST16C2550 and XR16C2550. The V2550 register set is compatible to the ST16C2550 and the XR16L2550. It supports Exar's enhanced features of selectable FIFO trigger level, automatic hardware (RTS/CTS) and software flow control, and a complete modem interface. Onboard registers provide the user with operational status and data error flags. An internal loopback capability allows system diagnostics. Independent programmable baud rate generators are provided in each channel to select data rates up to 16 Mbps at 3.3 Volt with 4X sampling clock. The V2550 is available in 48-pin TQFP and 32-pin QFN packages.
技术特性
- 2.25 to 3.6 Volt Operation
- 5 Volt Tolerant Inputs
- Pin-to-pin compatible to ST16C2550, XR16C2550 and XR16L2550 in the 48-TQFP package
- Two independent UART channels
- Register set compatible to XR16L2550
- Data rate of up to 16 Mbps at 3.3 V, and 12.5 Mbps at 2.5 V with 4X sampling rate
- Fractional Baud Rate Generator
- Transmit and Receive FIFOs of 16 bytes
- Selectable TX and RX FIFO Trigger Levels
- Automatic Hardware (RTS/CTS) Flow Control
- Automatic Software (Xon/Xoff) Flow Control
- Wireless Infrared (IrDA 1.0) Encoder/Decoder
- Automatic sleep mode
- Full modem interface
- Device Identification and Revision
- Crystal oscillator (up to 32MHz) or external clock (up to 64MHz) input
- 48-TQFP and 32-QFN packages
- Pb-Free, RoHS Compliant Versions Offered
订购信息 Ordering Information
| 器件型号 |
有害物质限制 |
最低温度 |
最高温度 |
状态 |
立刻购买 |
申请样片 |
| XR16V2550IL-F |
|
-40 |
85 |
Active |
|
|
| XR16V2550ILTR-F |
|
-40 |
85 |
Active |
|
|
| XR16V2550IM-F |
|
-40 |
85 |
Active |
|
|
| XR16V2550IMTR-F |
|
-40 |
85 |
Active |
|
技术指标
| 中央处理器接口 |
Intel/Motorola/VLIO |
| 频道 |
1 |
| 数据传输速率@5/3.3/2.5V |
na/24/na |
| Max Data Rate @ 5/3.3/2.5/1.8V (Mbps) |
na/24/16/9 |
| 发送器/接收器FIFO(Bytes) |
128/128 |
| 发送器/接收器FIFOCtrs |
Yes |
| 发送器/接收器FIFOINT Trig |
Program/ Program |
| 自动RTS/CTS |
Yes |
| IrDa供应 |
Yes |
| 5VTol输入 |
Yes |
| 电压供应 |
1.62-3.63 |
| 封装 |
QFN-32, QFN-40, TQFP-48 |
应用领域 APPLICATION
- Portable Appliances
- Telecommunication Network Routers
- Ethernet Network Routers
- Cellular Data Devices
- Factory Automation and Process Controls
功能框图 Functional Block Diagram
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