TL16C550CFNG4 Equivalent & Substitute Parts

Part Overview

The TL16C550CFNG4 is a UART interface IC manufactured by Texas Instruments, designed for asynchronous communication applications. This single-channel UART device features a 16-byte FIFO buffer and operates across a 3V to 5.25V supply range with a maximum data rate of 1Mbps. The device includes modem control and false start bit detection capabilities in a 44-PLCC surface mount package.

The TL16C550CFNG4 is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for new production runs and system maintenance.

Substiute Parts

TL16C550CFNG4

Texas InstrumentsIn Stock: 906TL16C550CFNG4 Datasheet

Current PartRFQ

ST16C550CJ44-F

MaxLinear, Inc.In Stock: 1618ST16C550CJ44-F Datasheet

MFR RecommendedRFQ

ST16C550IJ44-F

MaxLinear, Inc.In Stock: 4323ST16C550IJ44-F Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TL16C550CFNG4 are qualified based on the following critical parameters:

• Package compatibility: 44-LCC (J-Lead) surface mount configuration
• Functional equivalence: Single UART channel with 16-byte FIFO
• Electrical compatibility: Supply voltage range and data rate specifications
• Interface features: Modem control and false start bit detection capability
• Compliance standards: RoHS3 compliance and regulatory certifications

The substitute parts ST16C550CJ44-F and ST16C550IJ44-F meet these criteria. Both are manufactured by MaxLinear, Inc., feature identical package geometry (44-PLCC 16.59x16.59), and provide the same core UART functionality with enhanced specifications.

Parameter Comparison

Engineering Selection Recommendations

Both ST16C550CJ44-F and ST16C550IJ44-F are active production parts from MaxLinear, Inc., providing direct functional substitution for the obsolete TL16C550CFNG4. The substitute parts maintain full compatibility with the original package footprint and electrical interface specifications.

The MaxLinear devices offer enhanced performance characteristics, including higher maximum data rate (1.5Mbps versus 1Mbps) and extended supply voltage range (2.97V to 5.5V versus 3V to 5.25V). Both substitute parts maintain RoHS3 compliance and REACH unaffected status, consistent with the original device.

The improved moisture sensitivity level (MSL 1 Unlimited versus MSL 3 168 Hours) on the substitute parts provides superior reliability for storage and handling in production environments.

Frequently Asked Questions (FAQ)

Q: Are ST16C550CJ44-F and ST16C550IJ44-F pin-compatible with TL16C550CFNG4?

A: Both substitute parts use the 44-LCC (J-Lead) package configuration with identical pinout compatibility. The package dimensions (44-PLCC 16.59x16.59) are equivalent to the original device, enabling direct PCB footprint compatibility.

Q: What is the difference between ST16C550CJ44-F and ST16C550IJ44-F?

A: Both parts share identical electrical specifications, package configuration, and functional features. The designation difference reflects manufacturing grade classifications. Both are active production parts with equivalent performance characteristics.

Q: Can the substitute parts operate in the same voltage range as the original TL16C550CFNG4?

A: The substitute parts operate across 2.97V to 5.5V, which encompasses the original device range of 3V to 5.25V. This extended range provides additional design flexibility without compromising compatibility.

Q: Are there any compliance or certification differences between the original and substitute parts?

A: All three parts maintain RoHS3 compliance and REACH unaffected status. The substitute parts feature improved moisture sensitivity levels (MSL 1 Unlimited), providing enhanced reliability compared to the original MSL 3 specification.

Q: What is the significance of the higher maximum data rate on the substitute parts?

A: The substitute parts support 1.5Mbps maximum data rate compared to 1Mbps on the original device. This enhanced capability provides design margin and supports higher-speed communication protocols without requiring circuit modifications.