ST16C2450CQ48

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The ST16C2450CQ48 is a dual-channel Universal Asynchronous Receiver/Transmitter (UART) integrated circuit manufactured by Sipex. It operates on a single power supply ranging from 3.0V to 5.5V and supports data transmission rates up to 1.5 Mbps. The device features two independent UART channels, each equipped with a 16-byte FIFO buffer for both transmit and receive operations. It includes an internal oscillator capable of generating baud rates via programmable dividers. The IC is housed in a 48-pin TQFP surface-mount package.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Dual independent serial communication channels
• Integrated 16-byte transmit and receive FIFO buffers
• Internal clock generator with programmable baud rate dividers
• Full hardware modem control signal support

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Industrial equipment requiring reliable serial communication
• Point-of-sale systems and terminals
• Embedded computer systems with multiple serial ports
• Telecommunications interface modules

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify the manufacturer designation carefully, as the ST16C2450 series has been produced by Exar and later MaxLinear following corporate acquisitions. Confirm that the specific 'Sipex' branded units meet current RoHS compliance requirements if applicable to your project specifications. Ensure the 48-pin TQFP footprint matches your PCB layout constraints before finalizing procurement.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this component when a design requires two asynchronous serial interfaces within a compact surface-mount form factor. The 16-byte FIFO depth provides adequate buffering for moderate throughput applications without the complexity of larger memory structures. Verify that the operating voltage range aligns with the system's logic levels and that the maximum baud rate requirement does not exceed 1.5 Mbps.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

This device belongs to the ST16C24xx family of UART controllers, which are designed as pin-compatible replacements for standard 16C550/16C650 components but with enhanced FIFO capabilities. The ST16C2450 specifically adds a second channel compared to the single-channel ST16C1550 variants, offering a balanced solution for multi-port serial connectivity in space-constrained electronics.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

Publicly confirmed substitute part numbers include the ST16C2450CP40 and ST16C2450IQ48. These alternatives share identical functional specifications but differ in packaging type, such as PDIP or TQFP variations. Verify pinout compatibility and thermal characteristics when transitioning between different package styles.