TL16C552FNG4 Equivalent & Substitute Parts

Part Overview

The TL16C552FNG4 is a dual-channel UART interface IC manufactured by Texas Instruments, designed for asynchronous communication applications. This device features 16-byte FIFOs per channel, modem control capabilities, and false start bit detection. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new designs requiring similar functionality.

Substiute Parts

TL16C552FNG4

Texas InstrumentsIn Stock: 1052TL16C552FNG4 Datasheet

Current PartRFQ

TL16C752DPFBR

Texas InstrumentsIn Stock: 7010TL16C752DPFBR Datasheet

MFR RecommendedRFQ

TL16C552FN

Texas InstrumentsIn Stock: 2302TL16C552FN Datasheet

MFR RecommendedRFQ

TL16C552AFN

Texas InstrumentsIn Stock: 1821TL16C552AFN Datasheet

Parametric EquivalentRFQ

TL16C552AFNG4

Texas InstrumentsIn Stock: 837TL16C552AFNG4 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TL16C552FNG4 are categorized based on the following substitution criteria:

Parametric Equivalents (Direct Pin-Compatible Replacements): Parts that maintain identical electrical and mechanical specifications, including channel count (2 DUART), FIFO depth (16 Byte), data rate (1 Mbps), supply voltage range (4.75V ~ 5.25V), package type (68-LCC), and feature set (modem control, false start bit detection). These parts are interchangeable at the board level without design modifications.

Manufacturer Recommended Substitute (Enhanced Functionality): The TL16C752DPFBR represents an upgraded alternative with enhanced capabilities including higher FIFO depth (64 Byte), increased data rate (3 Mbps), wider supply voltage range (1.62V ~ 5.5V), and additional features (internal oscillator, timer/counter, IrDA encoder/decoder, auto flow control). This part requires package and pinout verification before implementation.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Pin-Compatible): TL16C552FN and TL16C552AFN are parametric equivalents suitable for direct substitution in existing designs. Both maintain the 68-LCC package, identical electrical specifications, and feature set. TL16C552FN carries Last Time Buy status with higher inventory availability (2287 pcs), while TL16C552AFN is packaged in Tube format (1716 pcs available). TL16C552AFNG4 provides an additional obsolete-status option with equivalent specifications (802 pcs available).

For Enhanced Performance Applications: TL16C752DPFBR is the manufacturer-recommended substitute offering active product status, superior FIFO capacity (64 Byte vs. 16 Byte), higher data rate capability (3 Mbps vs. 1 Mbps), and extended supply voltage range (1.62V ~ 5.5V). This part requires PCB redesign due to package change from 68-LCC to 48-TQFP and pinout differences. Implementation is suitable for new designs or systems where performance enhancement justifies redesign effort.

All substitute parts maintain ROHS3 compliance and EAR99 export classification consistent with the original part.

Frequently Asked Questions (FAQ)

Q: Can TL16C552FN directly replace TL16C552FNG4 without PCB modifications? A: Yes. TL16C552FN is a parametric equivalent with identical package (68-LCC), pinout, electrical specifications, and feature set. Direct board-level substitution is possible.

Q: What is the primary difference between TL16C552AFN and TL16C552FN? A: Both parts are parametric equivalents with identical electrical and functional specifications. The difference is packaging format: TL16C552FN uses standard packaging while TL16C552AFN is supplied in Tube format. Selection depends on procurement and assembly requirements.

Q: Why would TL16C752DPFBR be selected over parametric equivalents? A: TL16C752DPFBR offers enhanced capabilities including 4x FIFO depth (64 Byte), 3x data rate (3 Mbps), wider supply voltage range, and additional features (internal oscillator, IrDA support, auto flow control). Selection requires PCB redesign due to package change (48-TQFP vs. 68-LCC) and is appropriate for new designs requiring higher performance.

Q: Are all substitute parts RoHS compliant? A: Yes. All listed substitute parts (TL16C752DPFBR, TL16C552FN, TL16C552AFN, TL16C552AFNG4) maintain ROHS3 compliance consistent with the original TL16C552FNG4.

Q: What is the inventory status for each substitute part? A: TL16C752DPFBR (6966 pcs), TL16C552FN (2287 pcs), TL16C552AFN (1716 pcs), and TL16C552AFNG4 (802 pcs) are all available as new original stock. Availability should be confirmed with supplier for production requirements.

Q: Can TL16C552AFNG4 be used as a long-term solution? A: TL16C552AFNG4 carries obsolete status identical to the original part. While currently available (802 pcs), it is not recommended for new designs. TL16C552FN (Last Time Buy) or TL16C752DPFBR (Active) are preferred for long-term product support.