Description
The XR16M554 (M554) is a quad Universal Asynchronous Receiver and Transmitter (UART) with 16 bytes of transmit and receive FIFOs, selectable receive FIFO trigger levels and data rates of up to 4 Mbps at 3.3 V.
Features
- Pin-to-pin compatible with ST16C454, ST16C554,
TI’s TL16C554A and NXP’s SC16C554B.
- Intel or Motorola Data Bus Interface select.
- Four independent UART channels.
- Register Set Compatible to 16C550 Data rates of up to 4 Mbps at 3.3 V, 3.125 Mbps at 2.5 V and 2 Mbps at 1.8 V 16 byte Transmit FIFO 16 byte Receive FIFO with error tags 4 Selectable RX FIFO Trigger Levels Full modem interface.
- 1.62V to 3.63V supply operation.