TL16C554FNG4 Equivalent & Substitute Parts

Part Overview

The TL16C554FNG4 is a quad UART (Universal Asynchronous Receiver/Transmitter) interface IC manufactured by Texas Instruments, designed for asynchronous communication applications. This device integrates four independent serial communication channels with 16-byte FIFOs, supporting data rates up to 1 Mbps and operating within a 4.75V to 5.25V supply voltage range.

The TL16C554FNG4 is classified as obsolete, which necessitates identification of equivalent substitute parts for ongoing system support and new designs. Active alternatives with identical electrical and mechanical specifications are available to ensure design continuity and component availability.

Substiute Parts

TL16C554FNG4

Texas InstrumentsIn Stock: 1029TL16C554FNG4 Datasheet

Current PartRFQ

TL16C554IFN

Texas InstrumentsIn Stock: 8258TL16C554IFN Datasheet

UpgradeRFQ

TL16C554FN

Texas InstrumentsIn Stock: 1897TL16C554FN Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TL16C554FNG4 are qualified based on strict equivalence across the following critical parameters:

• Number of channels: 4 QUART channels
• FIFO depth: 16 Byte
• Maximum data rate: 1 Mbps
• Supply voltage range: 4.75V ~ 5.25V
• Modem control capability: Yes
• False start bit detection: Yes
• Package type: 68-LCC (J-Lead) / 68-PLCC (24.23x24.23)
• Mounting type: Surface Mount
• Compliance certifications: ROHS3, REACH Unaffected

All substitute parts maintain identical electrical performance characteristics and mechanical compatibility with the original TL16C554FNG4 design.

Parameter Comparison

Engineering Selection Recommendations

Both TL16C554IFN and TL16C554FN are direct substitutes for the obsolete TL16C554FNG4. Selection between these alternatives should be based on the following factors:

TL16C554IFN is classified as an upgrade substitute with active product status and higher current inventory availability (8233 pcs). This part is recommended for new designs and applications requiring long-term component supply assurance.

TL16C554FN is classified as a parametric equivalent with active product status and moderate inventory availability (1851 pcs). This part provides equivalent functionality and is suitable for replacement applications where design continuity is required.

Both parts maintain full compliance with ROHS3 and REACH regulations, ensuring compatibility with current environmental and regulatory requirements. The identical electrical specifications and package dimensions guarantee direct pin-for-pin and mechanical compatibility with existing TL16C554FNG4 designs.

Frequently Asked Questions (FAQ)

Q: Can TL16C554IFN and TL16C554FN be used interchangeably with TL16C554FNG4?

A: Yes. Both substitute parts are electrically and mechanically equivalent to the TL16C554FNG4. All three devices share identical channel count (4 QUART), FIFO depth (16 Byte), data rate (1 Mbps), supply voltage range (4.75V ~ 5.25V), and package specifications (68-PLCC, 24.23x24.23mm).

Q: What is the primary difference between TL16C554IFN and TL16C554FN?

A: Both parts are functionally identical. The primary difference is product status: TL16C554IFN is classified as an upgrade substitute with higher inventory availability, while TL16C554FN is a parametric equivalent. Both are active products suitable for component selection.

Q: Are there any package or mounting differences between these parts?

A: No. All three parts use identical surface mount packaging: 68-LCC (J-Lead) with supplier device package designation 68-PLCC (24.23x24.23mm). Direct PCB footprint compatibility is guaranteed.

Q: Do these substitute parts meet current compliance requirements?

A: Yes. Both TL16C554IFN and TL16C554FN are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards for electronic components.

Q: What is the Moisture Sensitivity Level (MSL) for these parts?

A: All three parts share MSL rating of 3 (168 Hours), indicating identical moisture handling and storage requirements during manufacturing and assembly processes.