Manufacturer Part Number

TL16C554AFNG4

Description

Asynchronous communication IC (UART), four channels, 16-byte FIFO memory. Handles serial data transfer and supports modem control features. Reliable for multi-port serial expansion. Originally available in a 68-pin PLCC package (24.23 x 24.23 mm), surface mounted.

Specifications

Data rate up to 1 Mbps. Supplies voltage between 3V and 5.25V. Includes auto flow control and false start bit detection. Four UART channels total. Communications handled via 16-byte FIFOs for each channel. Surface-mount package type: 68-LCC (J-Lead). Complies with ROHS3 and unaffected by REACH regulations. Moisture sensitivity level is 3, which allows 168 hours at JEDEC level.

Device Structure

Multi-channel UART IC with four QUART serial communication ports. Encased in a 68-PLCC form factor for PCB surface mounting. Internal FIFOs for each channel can buffer up to 16 bytes. Integrated modem control logic.

Performance Characteristics

Supports maximum serial data rates of up to 1Mbps per channel. Integrated auto flow control ensures reliable high-speed communication and reduces data loss. False start bit detection improves communication integrity. Modem control logic enhances compatibility with external modem modules.

Application Environments

Ideal for embedded systems, industrial controls, networking devices, and any environment where multi-port serial communication is required. Applied in data acquisition, sensor gateways, manufacturing equipment, and other applications needing robust UART interfaces. Suitable for environments requiring RoHS and REACH compliance.

Selection Guidelines

Choose TL16C554AFNG4 when four-channel UART serial expansion is required, especially if modem control and false start bit detection are needed. Ideal when the target application fits the 68-PLCC SMD footprint and voltage requirements of 3V to 5.25V. Make sure the data rate and package fit system requirements.

Usage Considerations

Check device packaging and mounting compatibility with your board layout (68-PLCC, J-lead). Confirm inventory status since the part is discontinued at major distributors. Review moisture sensitivity and observe handling precautions for MSL 3 devices. Validate supply voltage range. Ensure planned application leverages all relevant features, such as auto flow control and modem logic.

Potential Equivalent/Replacement Models

There are equivalent and alternative models available: TL16C554AIFN, TL16C554AFN. For more alternatives or if direct substitutes are unavailable, reach out to the Ariat-Tech sales team for more options and technical support.

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