The MCP2140 is a low-pin count (18-pin) device that implements the IrDA standard for wireless connectivity, including: IrLAP, IrLMP, IAS, TinyTP and IrCOMM (9-wire “Cooked” service level). It also provides IrDA standard physical signalling layer support, including: bidirectional communication, implementation of CRC and 9600 bps fixed communication speed. In addition, it also includes UART-IrDA standard encoding / decoding functions, which are easy to connect with industry standard UART and infrared transceivers.
The MCP2140 IrDA controller provides a compact 18‑pin solution for IrDA‑compliant serial communication. It integrates a UART interface, low‑power mode and supports point‑to‑point operation.
The device operates at a fixed 9600 bps data rate and requires a 7.3728 MHz clock source. It is offered in PDIP, SOIC and SSOP packages and includes pin‑out tables, timing diagrams and application notes for both DCE and DTE configurations. This manual is written in Chinese.
| Baud rate | 9600 bps |
|---|---|
| Operating crystal frequency | 7.3728 MHz |
| Typical power consumption | < 1 mA at 3.0 V |
| Package types | 18‑pin PDIP, SOIC, 20‑pin SSOP |
| Number of pins | 18 |
| Interface | UART / IrDA |
| Low‑power mode | Available |
The MCP2140 operates at a fixed baud rate of 9600 bps.
The device requires a 7.3728 MHz crystal for proper operation.
It is offered in 18‑pin PDIP, SOIC and 20‑pin SSOP packages.
Yes, the MCP2140 includes a low‑power mode.