The XR16M2650 is a high performance low voltage dual universal asynchronous receiver and transmitter (UART) with 32 bytes TX and RX FIFOs. The device operates from 1.62 to 3.63 volts and is pin-to-pin and software compatible to the ST16C2550, XR16V2550 and XR16V2650.
The XR16M2650 is a high‑performance dual universal asynchronous receiver and transmitter (DUART) that operates from 1.62 V to 3.63 V. It provides selectable FIFO trigger levels, automatic hardware (RTS/CTS) and software (Xon/Xoff) flow control, a full modem interface, and an infrared (IrDA 1.0) encoder/decoder. Data rates up to 16 Mbps are supported at 3.3 V.
The device is offered in 48‑pin TQFP and 32‑pin QFN packages, with a temperature range of –40 °C to +85 °C. Detailed pin descriptions, functional block diagrams, and register maps are included for system integration and software development.
| Operating Voltage | 1.62 V to 3.63 V |
|---|---|
| Maximum Data Rate (3.3 V) | 16 Mbps |
| Maximum Data Rate (2.5 V) | 12.5 Mbps |
| Maximum Data Rate (1.8 V) | 8 Mbps |
| FIFO Size | 32 bytes TX and RX |
| Package Types | 48‑pin TQFP, 32‑pin QFN |
The device operates from 1.62 V up to 3.63 V.
It is offered in a 48‑pin TQFP package and a 32‑pin QFN package.
Up to 16 Mbps can be achieved at 3.3 V.
Yes, it includes a wireless infrared (IrDA 1.0) encoder/decoder.