ST16C1450IJ28-F

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The MaxLinear ST16C1450IJ28-F is a single-channel universal asynchronous receiver and transmitter (UART) housed in a 28-pin PLCC package. It operates within a voltage range of 2.97V to 5.5V and supports data rates up to 1.5 Mbps with a 24 MHz clock input. The device features one-byte transmit and receive FIFOs, four levels of prioritized interrupts, and an internal loopback capability for diagnostics. It includes programmable baud rate generators supporting crystal or external clock inputs, software-controllable reset outputs, and power-down modes. The component functions across an industrial temperature range of -40°C to +85°C.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Pin and functionally compatible with SSI 73M1550/2550 UARTs
• Supports independent programmable baud rate generators with crystal or external clock inputs
• Includes onboard status registers providing error indications and operational status
• Features software controllable reset output and internal loopback capability

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Battery Operated Electronics
• Internet Appliances
• Handheld Terminals
• Personal Digital Assistants
• Cellular Phones DataPort

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify the specific suffix 'IJ28' confirms the -40°C to +85°C operating temperature range and 28-lead PLCC package configuration. Confirm that the source document identifies Exar Corporation as the original manufacturer, noting that MaxLinear has acquired Exar's interface products. Ensure compatibility requirements are met before procurement, as this device is not compatible with standard industry 16450 drivers.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select the ST16C1450IJ28-F when a single-channel UART with enhanced interrupt capabilities and low-power operation is required. This model is suitable for applications needing software-controllable resets and internal loopback diagnostics. Verify that the system design accommodates the 28-pin PLCC footprint and that the host processor can support the specific register mapping and interrupt priority levels defined in the datasheet.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

The ST16C1450 belongs to the ST16C1450 series of UARTs, which are designed as enhancements to legacy 16C450 devices. It offers higher operating speeds and lower access times compared to older SSI 73M1550 and 73M2550 equivalents. The device is fabricated using an advanced CMOS process to achieve low drain power while maintaining high-speed performance requirements for serial communication interfaces.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

The ST16C1450CJ28 is the commercial temperature variant (0°C to +70°C) of this part. For Windows compatibility, consider the ST16C450. Note that the ST16C1450 is not compatible with the industry standard 16450.