the xr16m780 is a high-performance uart from exar corporation that supports 1.62v to 3.63v voltage range, maximum data transfer rate of 16mbps, automatic hardware and software flow control, 64 bytes of transmit and receive fifo buffers, and support rs485 half-duplex and multipoint communication modes
The XR16M780 UART provides 64‑byte transmit and receive FIFOs, programmable FIFO trigger levels, automatic hardware and software flow control, and independent TX/RX baud‑rate generators. It operates from 1.62 V to 3.63 V and achieves data rates up to 16 Mbps at 3.3 V.
The device is offered in 32‑pin QFN, 48‑pin TQFP and 25‑pin BGA packages and supports both Intel (16) and Motorola (68) bus interfaces. Typical applications include PDAs, cellular phones, battery‑operated devices, and other high‑speed data communication systems.
| Supply voltage range | 1.62 V to 3.63 V |
|---|---|
| Maximum data rate | 16 Mbps at 3.3 V |
| FIFO size | 64 bytes transmit and receive |
| Package options | 32‑pin QFN, 48‑pin TQFP, 25‑pin BGA |
| Operating temperature | -40 °C to +85 °C |
Power consumption can be minimized by enabling Sleep Mode and PowerSave mode.
It simplifies hardware and software for half‑duplex RS‑485 applications.