TL16C550CIPTG4 Equivalent & Substitute Parts

Part Overview

The TL16C550CIPTG4 is a single-channel UART interface IC with 16-byte FIFO, manufactured by Texas Instruments in a 48-LQFP surface mount package. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production support. The part operates across a 3V to 5.25V supply range with integrated modem control and false start bit detection capabilities, supporting asynchronous communication at up to 1Mbps data rate.

Substiute Parts

TL16C550CIPTG4

Texas InstrumentsIn Stock: 1965TL16C550CIPTG4 Datasheet

Current PartRFQ

SC16C550BIB48,151

NXP SemiconductorsIn Stock: 1005SC16C550BIB48,151 Datasheet

MFR RecommendedRFQ

ST16C550CQ48-F

MaxLinear, Inc.In Stock: 5915ST16C550CQ48-F Datasheet

MFR RecommendedRFQ

ST16C550CQ48TR-F

MaxLinear, Inc.In Stock: 2090ST16C550CQ48TR-F Datasheet

MFR RecommendedRFQ

ST16C550IQ48-F

MaxLinear, Inc.In Stock: 15789ST16C550IQ48-F Datasheet

MFR RecommendedRFQ

ST16C550IQ48TR-F

MaxLinear, Inc.In Stock: 872ST16C550IQ48TR-F Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the TL16C550CIPTG4 is determined by the following critical parameters:

Core Functional Requirements:

• Single UART channel with 16-byte FIFO buffer
• Modem control and false start bit detection support
• Surface mount package configuration

Electrical Compatibility:

• Supply voltage range must encompass or overlap with 3V to 5.25V
• Data rate capability must meet or exceed 1Mbps minimum

Physical Compatibility:

• Package type: 48-pin LQFP or 48-pin TQFP (both 7x7mm footprint)
• Surface mount mounting type

Compliance Requirements:

• RoHS3 compliance maintained
• REACH unaffected status

Substitute parts are grouped into two categories based on package type: NXP SC16C550BIB48,151 (48-LQFP) and MaxLinear ST16C550 series variants (48-TQFP). Both maintain functional equivalence while offering improved specifications in data rate and supply voltage flexibility.

Parameter Comparison

Engineering Selection Recommendations

For Direct LQFP Package Replacement: SC16C550BIB48,151 from NXP Semiconductors is the primary equivalent for applications requiring the 48-LQFP package footprint. This part maintains identical pinout compatibility and offers enhanced specifications including 3Mbps maximum data rate and expanded supply voltage support (2.5V, 3.3V, 5V). The part carries Last Time Buy status, indicating limited future availability. RoHS3 compliance and REACH unaffected status align with the original part's regulatory requirements.

For TQFP Package Alternatives: The ST16C550 series from MaxLinear, Inc. provides active production alternatives in 48-TQFP package configuration. All four variants (ST16C550CQ48-F, ST16C550CQ48TR-F, ST16C550IQ48-F, ST16C550IQ48TR-F) deliver 1.5Mbps data rate capability and extended supply voltage range (2.97V ~ 5.5V). These parts feature Timer/Counter functionality and maintain modem control and false start bit detection. Selection between tray and tape & reel packaging depends on assembly requirements. All MaxLinear variants maintain active product status, ensuring long-term availability.

Compliance Considerations: All substitute parts maintain RoHS3 compliance and REACH unaffected status, meeting regulatory requirements equivalent to the original TL16C550CIPTG4. ECCN classifications vary between substitute options; verify export control requirements for your application region.

Frequently Asked Questions (FAQ)

Q: Can I use a 48-TQFP package part as a direct replacement for the 48-LQFP original? A: TQFP and LQFP packages have different lead configurations and footprints despite identical pin counts and 7x7mm dimensions. Direct PCB substitution is not possible without layout modification. SC16C550BIB48,151 maintains the original 48-LQFP footprint for direct replacement. MaxLinear ST16C550 variants require PCB redesign for TQFP footprint accommodation.

Q: What is the difference between tray and tape & reel packaging options? A: Tray packaging is suitable for manual assembly or small-volume production. Tape & reel (TR) packaging is designed for automated pick-and-place assembly equipment. Selection depends on your manufacturing process. Electrical and functional specifications are identical between packaging options.

Q: Are all substitute parts pin-compatible with the TL16C550CIPTG4? A: SC16C550BIB48,151 maintains identical 48-pin LQFP pinout compatibility. MaxLinear ST16C550 variants use 48-pin TQFP configuration with different lead geometry. Verify pinout documentation for your specific application before selection.

Q: What supply voltage range should I design for when using substitute parts? A: The original TL16C550CIPTG4 operates at 3V to 5.25V. SC16C550BIB48,151 supports 2.5V, 3.3V, and 5V discrete levels. MaxLinear ST16C550 variants support continuous range 2.97V to 5.5V. Design for the overlapping range (3V to 5.25V) to maintain compatibility across all options, or select the substitute part matching your specific voltage requirements.

Q: Why do some substitute parts show "Not specified" for auto flow control? A: MaxLinear ST16C550 variants do not explicitly document auto flow control capability in the provided specifications. Consult detailed datasheets for complete feature verification before final part selection.

Q: What is the significance of "Last Time Buy" status for SC16C550BIB48,151? A: Last Time Buy status indicates NXP has announced end-of-life for this part. While currently available (972 pcs in stock), future procurement may become impossible. For long-term production requirements, consider MaxLinear ST16C550 active production alternatives.