XR16V2751 High Performance DUART with 64-byte FIFO and Powersave Feature
The XR16V27511 (V2751) is a high performance dual universal asynchronous receiver and transmitter (UART) with 64 byte TX and RX FIFOs. The device operates from 2.25 to 3.6 volts with 5 Volt tolerant inputs and is pin-to-pin and software compatible to Exar's XR16L2751. The device includes 2 additional capabilities over the XR16V2750: Intel and Motorola data bus selection and a "PowerSave" mode to further reduce sleep current to a minimum during sleep mode. It supports the Exar's enhanced features of programmable FIFO trigger level and FIFO level counters, automatic hardware (RTS/CTS) and software flow control, automatic RS-485 half duplex direction control output and a complete modem interface. An internal loopback capability allows system diagnostics. Independent programmable fractional baud rate generators are provided in each channel to select data rates up to 8 Mbps at 3.3 Volt and 8X sampling clock. The V2751 is available in a 48-pin TQFP package
技术特性
- 2.25 to 3.6 Volt Operation
- 5 Volt Tolerant Inputs
- Pin-to-pin compatible to Exar's XR16L2751 in the 48-TQFP package
- Two independent UART channels
- Register set identical to 16L2751
- Data rate of up to 8 Mbps at at 3.3 V, and 4 Mbps at 2.5 V with 8X sampling rate
- Fractional Baud Rate Generator
- Transmit and Receive FIFOs of 64 bytes
- Programmable TX and RX FIFO Trigger Levels
- Transmit and Receive FIFO Level Counters
- Automatic Hardware (RTS/CTS) Flow Control
- Selectable Auto RTS Flow Control Hysteresis
- Automatic Software (Xon/Xoff) Flow Control
- Automatic RS-485 Half-duplex Direction Control Output via RTS#
- Wireless Infrared (IrDA 1.0) Encoder/Decoder
- Automatic sleep mode with wake-up interrupt
- Full modem interface
- PowerSave Feature reduces sleep current to 15 µA
- Device Identification and Revision
- Crystal oscillator (up to 32MHz) or external clock (upto 64MHz) input
- 48-TQFP package
- 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 |
| XR16V2751IM-F |
|
-40 |
85 |
Active |
|
|
| XR16V2751IMTR-F |
|
-40 |
85 |
Active |
|
技术指标
| 中央处理器接口 |
Intel or Motorola |
| 频道 |
2 |
| 数据传输速率@5/3.3/2.5V |
na/8/6.25 |
| Max Data Rate @ 5/3.3/2.5/1.8V (Mbps) |
na/8/6.25/na |
| 发送器/接收器FIFO(Bytes) |
64/64 |
| 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 |
2.25-3.6 |
| 封装 |
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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