ST16C650IJ44

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The ST16C650IJ44 is a UART interface integrated circuit manufactured by Sipex, housed in a 44-PLCC surface-mount package. It features a 16-byte FIFO buffer and supports data rates up to 1.5 Mbps. The device operates with a supply voltage of 7V and includes an internal oscillator. Key functional attributes include false start bit detection and modem control capabilities. The component is classified as discontinued and complies with RoHS3 standards.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Incorporates a 16-byte pipeline register for efficient data buffering
• Supports high-speed serial communication with a maximum rate of 1.5 Mbps
• Includes hardware modem control signals and false start bit detection logic

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Industrial serial communication systems requiring robust UART functionality
• Embedded controllers needing high-speed asynchronous data transfer
• Legacy system upgrades utilizing PLCC packaging constraints

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

This component is officially discontinued by the manufacturer. Availability is limited to surplus or secondary market sources such as Rochester Electronics. Verify part authenticity and condition carefully, as these items are often sold final sale without standard manufacturer warranties. Confirm RoHS3 compliance status with the specific supplier before integration into new designs.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this part only if existing board layouts require a 44-PLCC footprint and 1.5 Mbps throughput is sufficient. Consider modern alternatives with smaller packages like QFN or TQFP if redesigning. Ensure the 7V supply requirement aligns with the target system power rails. Verify that the discontinued status does not conflict with long-term production lifecycle requirements.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

The ST16C650IJ44 belongs to the Sipex ST16C650 family of UART controllers. It serves as a bridge between parallel microprocessor buses and serial communication lines. The 44-PLCC package was common in older computing and industrial equipment. Sipex was later acquired by Exar, which continues to support related product lines under different branding.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

Publicly confirmed direct substitutes are not available due to the discontinued status. Review STMicroelectronics SC16C650 series or Exar XR16C650 devices for pin-compatible or functionally similar options. Validate electrical parameters and package dimensions against the original design specifications before substitution.