ST16C650AIQ48TR-F

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The ST16C650AIQ48TR-F is a single-channel UART interface integrated circuit manufactured by MaxLinear, Inc. It features an 8-byte transmit and receive FIFO buffer to enhance data throughput and reduce CPU overhead. The device operates within a supply voltage range of 2.97V to 5.5V and supports data rates up to 1.875 Mbps. It is housed in a 48-lead Thin Quad Flat Package (TQFP) with a 7x7 mm footprint. The component complies with the RS-232 standard and includes full modem control signals.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Integrated 8-byte FIFO buffers for both transmission and reception to minimize processor intervention.
• Full modem control signal support including RTS, CTS, DSR, DCD, RI, and DTR for complete serial communication management.
• Compatible with standard RS-232 signaling requirements while operating on low-voltage CMOS power supplies.

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Industrial automation systems requiring reliable serial communication links.
• Embedded computer peripherals and I/O expansion modules.
• Telecommunications equipment utilizing asynchronous data transfer protocols.

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify the manufacturer designation as MaxLinear, Inc., noting the historical lineage from Exar Corporation. Confirm the specific suffix 'IQ48' indicates the industrial temperature grade and TQFP package type. Ensure the 'TR-F' suffix corresponds to the tape-and-reel packaging format required for automated assembly processes.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this component when a single UART channel with moderate FIFO depth is sufficient for the application. Compare against the ST16C652 variant if dual-channel capability is required instead of single-channel operation. Verify that the 48-pin TQFP package dimensions fit the available PCB real estate constraints.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

This part belongs to the ST16C65x family of single-channel UART controllers. It serves as a bridge between parallel microprocessor buses and serial asynchronous data streams. The device integrates all necessary drivers and receivers for RS-232 communication, eliminating the need for external level-shifting components in many designs.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

The ST16C650IQ48TR-F may be functionally replaced by the ST16C650CVQ48TR-F if commercial temperature grade operation is acceptable. Cross-reference with Exar datasheets for pin-compatible alternatives within the same package family.