This data sheet introduces the features and characteristics of Exar XR16L2752 2.25V to 5.5V DUART.
The XR16L2752 integrates two enhanced 16C550‑compatible UART channels, each with independent registers, 64‑byte transmit and receive FIFOs, and programmable baud‑rate generators. It operates from 2.25 V to 5.5 V and is pin‑to‑pin compatible with Exar's ST16C2552 and XR16C2852 devices.
Key features include 5 V tolerant inputs, automatic RTS/CTS hardware flow control, XON/XOFF software flow control, RS‑485 half‑duplex direction control, infrared (IrDA 1.0) encoder/decoder, and a full modem interface. The device is offered in a 44‑lead PLCC package and supports temperature ranges from –40 °C to +85 °C depending on part number.
| Operating voltage range | 2.25 V to 5.5 V |
|---|---|
| Package | 44‑lead PLCC |
| Temperature range (XR16L2752CJ) | 0 °C to +70 °C |
| Temperature range (XR16L2752lJ) | -40 °C to +85 °C |
| Number of UART channels | 2 independent channels |
| 5 V tolerant inputs | Yes |
It is supplied in a 44‑lead PLCC package.