The TL16C2550PFBR is a dual universal asynchronous receiver and transmitter (UART). It incorporates the functionality of two TL16C550D UARTs, each UART having its own register set and FIFOs. The two UARTs share only the data bus interface and clock source, otherwise they operate independently. Another name for the uart function is Asynchronous Communications Element (ACE), and these terms will be used interchangeably. The bulk of this document describes the behavior of each ACE, with the understanding that two such devices are incorporated into the TL16C2550.
Each ACE is a speed and voltage range upgrade of the TL16C550C, which in turn is a functional upgrade of the TL16C450. Functionally equivalent to the TL16C450 on power up or reset (single character or TL16C450 mode), each ACE can be placed in an alternate FIFO mode. This relieves the CPU of excessive software overhead by buffering received and to be transmitted characters. Each receiver and transmitter store up to 16 bytes in their respective FIFOs, with the receive FIFO including three additional bits per byte for error status. In the FIFO mode, a selectable autoflow control feature can significantly reduce software overload and increase system efficiency by automatically controlling serial data flow using handshakes between the RXRDY output that can be used to interface to a DMA controller.
類型 | 描述 | 全選 |
---|---|---|
帶自動流量控制 | 是 | |
電壓 - 供電 | 1.8V ~ 5V | |
數據速率(最大值) | 1.5Mbps | |
FIFO | 16 字節 | |
供應商器件封裝 | 48-TQFP(7x7) | |
通道數 | 2,DUART | |
特性 | 內部振蕩器 | |
封裝/外殼 | 48-TQFP | |
產品狀態 | 在售 | |
安裝類型 | 表面貼裝型 | |
包裝 | 卷帶(TR) | |
帶調製解調器控制 | 是 | |
帶假起始位檢測 | 是 |
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