XR68M752 High Performance DUART with 64-Byte FIFO
The XR68M752 is a Dual Universal Asynchronous Receiver and Transmitter with 8 (XR68M752) bytes transmit and receive FIFO. The XR68M752 is a pin and functionally compatible to the XR68C681 and Philips SCC68681 UARTs, with additional features. The operating speed of the receiver and transmitter can be selected independently from a table of twenty four fixed baud rates, a 16X clock derived from a programmable counter/timer, or an external 1X or 16X clock. The baud rate generator and counter/timer can operate directly from a crystal or from external clock input. The XR68M752 provides a power down mode in which the oscillator is stopped but the register contents are retained. The XR68M752 is fabricated in an advanced CMOS process to achieve low power and high speed requirements
技术特性
- 1.62 to 3.6 Volt Operation
- Pin-to-pin and software compatible to TI's TL16C752B and Philips' SC16C752B in the 48-TQFP package
- Two independent UART channels
- Data rate of up to 16 Mbps at 3.3 V
- Data rate of up to 12.5 Mbps at 2.5 V
- Data rate of up to 8 Mbps at 1.8 V
- Fractional Baud Rate Generator
- Data sampling rates of 16X, 8X and 4X
- Transmit and Receive FIFOs of 64 bytes
- Programmable TX and RX FIFO Trigger Levels
- Automatic Hardware (RTS/CTS) Flow Control
- Automatic Software (Xon/Xoff) Flow Control
- Halt and Resume Transmission Control
- Automatic RS-485 Half-duplex Direction Control Output via RTS#
- Wireless Infrared (IrDA 1.0) Encoder/Decoder
- Automatic sleep mode
- Full modem interface
- Crystal oscillator (up to 24MHz) or external clock (up to 64MHz) input
- 48-TQFP and 32-QFN packages
- Pb-Free, RoHS Compliant Versions Offered
|
技术指标
| 中央处理器接口 |
Motorola |
| 频道 |
2 |
| 数据传输速率@5/3.3/2.5V |
na/16/12.5 |
| Max Data Rate @ 5/3.3/2.5/1.8V (Mbps) |
na/16/12.5/8 |
| 发送器/接收器FIFO(Bytes) |
64/64 |
| 发送器/接收器FIFOCtrs |
No |
| 发送器/接收器FIFOINT Trig |
4 Levels/ 4 Levels |
| 自动RTS/CTS |
Yes |
| IrDa供应 |
Yes |
| 5VTol输入 |
No |
| 电压供应 |
1.62-3.63 |
| 封装 |
TQFP-48, QFN-32 |
应用领域 APPLICATION
- Portable Appliances
- Telecommunication Network Routers
- Ethernet Network Routers
- Cellular Data Devices
- Factory Automation and Process Controls
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 |
| XR68M752IB49-F |
|
-40 |
85 |
Active |
|
|
| XR68M752IL32-F |
|
-40 |
85 |
Active |
|
|
| XR68M752IL32TR-F |
|
-40 |
85 |
Active |
|
|
| XR68M752IM48-F |
|
-40 |
85 |
Active |
|
|
| XR68M752IM48TR-F |
|
-40 |
85 |
Active |
|
