ST16C550CP40-F

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The ST16C550CP40-F is a field programmable universal asynchronous receiver transmitter (UART) integrated circuit (IC) constructed using STMicroelectronics’s CMOS technology. This UART can transmit and/or receive full duplex serial data with communication rates of up to 3.072 Mbps. The ST16C550CP40-F offers an extended feature set that makes it a versatile communications device. The ST16C550CP40-F achieves superior performance and low power dissipation by employing an advanced bus interface architecture and a novel FIFO buffer design.

Flexible interfacing allows the ST16C550CP40-F to support various systems such as computers, servers, servers, and industrial control systems. The interfacing of the ST16C550CP40-F is designed to reduce the burden on its peripheral components. For example, the integrated FIFO buffers provide the ability to simultaneously transmit and receive serial data without overwhelming the host processor. The FIFOs also provide the capability to buffer data for extended intervals of time, allowing for communication rates of up to 3.072 Mbps.

The ST16C550CP40-F also supports data transmission using either the standard non-return-to-zero (NRZ) or biphase-mark (BPM) signalling techniques. Additionally, the ST16C550CP40-F is flexible enough to be configured to operate with a variety of protocol standards including: 8-bit synchronous, asynchronous, Manchester Code, Modem Control Interface (MCI), and many others. The ST16C550CP40-F also supports data transmission speeds up to 230.4 Kbps.

The ST16C550CP40-F’s core is an asynchronous receiver/transmitter (ART) that operates in the multi-drop mode. The ART is the fundamental building block of the system and is responsible for providing the “glue” that binds together the various communications elements. The ART handles all protocol translations, buffering, and data transfer activities between the UART and the CPU. The ART is also responsible for mastering the bus timing parameters, handling interrupts, monitoring the data link, and performing other system functions.

In addition to the ART, the ST16C550CP40-F features a programmable source synchronous port. The source synchronous port allows the connection of multiple external devices (e.g., modem, printer, scanner, etc.) to the system. This port requires no external logic to translate data words between the external device and the UART. When properly configured, the source synchronous port provides a highly efficient method for data transfer. The port also allows the use of efficient digital line drivers such as pulse ethernet driver/receivers or serial data link interfaces.

The ST16C550CP40-F provides an array of configurable interrupt vectors. The vectors control the flow of data, allow for flow control, and trigger events. The interrupt vectors are located within the internal memory map of the UART and may be programmed individually or in sets. The interrupts can be programmed for low, medium, or high priority levels to support applications with varying data exchange requirements.

The ST16C550CP40-F is an ideal solution for applications requiring higher data rates, lower power dissipation, and enhanced performance. The ST16C550CP40-F supports a broad range of communication protocols, a flexible bus interface architecture, and a large array of configurable interrupt vectors. The ST16C550CP40-F operates over a wide range of supply voltages and provides high noise immunity and excellent data transfer reliability. With its robust feature set, the ST16C550CP40-F is an excellent choice for UART applications.

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