TL16C554AIPNG4 Equivalent & Substitute Parts

Part Overview

The TL16C554AIPNG4 is a quad UART (Universal Asynchronous Receiver/Transmitter) interface IC manufactured by Texas Instruments, designed for asynchronous communication applications. This device integrates four independent UART channels with 16-byte FIFOs, supporting data rates up to 1 Mbps and operating across a 3V to 5.25V supply voltage range. The part is discontinued at DiGi Electronics, necessitating identification of equivalent alternatives to maintain design continuity and ensure component availability for production and maintenance applications.

Substiute Parts

TL16C554AIPNG4

Texas InstrumentsIn Stock: 1202TL16C554AIPNG4 Datasheet

Current PartRFQ

TL16C554APN

Texas InstrumentsIn Stock: 2262TL16C554APN Datasheet

Parametric EquivalentRFQ

TL16C554AIPN

Texas InstrumentsIn Stock: 4577TL16C554AIPN Datasheet

MFR RecommendedRFQ

TL16CP554APM

Texas InstrumentsIn Stock: 1892TL16CP554APM Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TL16C554AIPNG4 is determined by the following critical parameters:

Functional Equivalence Parameters:

• Number of Channels: 4 QUART
• FIFO Depth: 16 Byte
• Data Rate (Max): 1 Mbps
• Voltage Supply Range: 3V ~ 5.25V
• Auto Flow Control: Yes
• False Start Bit Detection: Yes
• Modem Control: Yes

Physical and Compliance Parameters:

• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 3 (168 Hours)
• REACH Status: REACH Unaffected

Substitute parts are grouped based on matching these parameters. Package differences (80-LQFP versus 64-LQFP) represent a secondary consideration and are noted where applicable. Product status (Active, Obsolete, or Discontinued) is documented to inform procurement strategy.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: TL16C554AIPN

TL16C554AIPN is the manufacturer-recommended substitute. It maintains identical electrical specifications, channel configuration, FIFO depth, and data rate performance as the TL16C554AIPNG4. The part is currently Active in product status, ensuring ongoing availability and supply chain support. Package configuration (80-LQFP, 12x12) matches the original specification exactly, eliminating PCB redesign requirements. RoHS3 compliance and MSL rating are identical, supporting equivalent environmental and reliability requirements.

Secondary Substitute: TL16C554APN

TL16C554APN is a parametric equivalent offering identical functional and electrical characteristics to the main part. Product status is Active, providing reliable procurement pathways. The 80-LQFP (12x12) package matches the original footprint precisely. This part is suitable for direct substitution without PCB layout modifications.

Tertiary Substitute: TL16CP554APM

TL16CP554APM maintains all critical functional parameters (4 QUART channels, 16-byte FIFO, 1 Mbps data rate, 3V–5.25V supply, auto flow control, false start bit detection, and modem control). However, this part uses a 64-LQFP (10x10) package, differing from the original 80-LQFP (12x12) configuration. Product status is Obsolete, indicating limited availability and potential supply discontinuation. Selection of this part requires PCB redesign to accommodate the different package footprint and pin count reduction.

Frequently Asked Questions (FAQ)

Q: Can TL16C554APN be used as a direct replacement for TL16C554AIPNG4?

A: Yes. TL16C554APN is a parametric equivalent with identical electrical specifications, channel count, FIFO depth, data rate, supply voltage range, and 80-LQFP (12x12) package configuration. No PCB modifications are required.

Q: What is the difference between TL16C554AIPN and TL16C554APN?

A: Both parts are functionally and electrically equivalent to the TL16C554AIPNG4. The primary difference is product status: TL16C554AIPN is manufacturer-recommended and currently Active, while TL16C554APN is also Active. Both use identical 80-LQFP (12x12) packages and support direct substitution.

Q: Why is TL16CP554APM listed as a substitute if it has a different package?

A: TL16CP554APM maintains all critical functional parameters required for UART operation (4 channels, 16-byte FIFO, 1 Mbps data rate, supply voltage range, flow control, and modem control). However, the 64-LQFP (10x10) package differs from the original 80-LQFP (12x12), requiring PCB redesign. This part is listed for reference but is not recommended due to Obsolete product status and package incompatibility.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts (TL16C554APN, TL16C554AIPN, and TL16CP554APM) are ROHS3 Compliant with identical Moisture Sensitivity Level (MSL) ratings of 3 (168 Hours), matching the original part's environmental and regulatory requirements.

Q: What is the inventory status of substitute parts?

A: TL16C554AIPN has 4,561 pieces in stock. TL16C554APN has 2,153 pieces in stock. TL16CP554APM has 1,871 pieces in stock. All parts are available as new original components.

Q: Should I select TL16C554AIPN or TL16C554APN?

A: Both are suitable for direct substitution. TL16C554AIPN is the manufacturer-recommended option and has higher inventory availability (4,561 pieces). Selection between the two should be based on supplier availability, lead time, and procurement cost.