TL16C552AFNR Equivalent & Substitute Parts

Part Overview

The TL16C552AFNR is a dual asynchronous communication UART interface circuit manufactured by Texas Instruments. This IC functions as a dual-channel DUART (Dual Universal Asynchronous Receiver/Transmitter) with integrated 16-byte FIFOs, designed for serial communication applications requiring dual-channel support. The device is currently in active product status and maintains full inventory availability. Substitute parts are identified when equivalent electrical and mechanical parameters align with the original specification, enabling direct replacement in applications where component availability or supply chain considerations necessitate alternative sourcing.

Substiute Parts

TL16C552AFNR

Texas InstrumentsIn Stock: 2054TL16C552AFNR Datasheet

Current PartRFQ

TL16C552FNR

Texas InstrumentsIn Stock: 2061TL16C552FNR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TL16C552AFNR is determined by strict equivalence across the following critical parameters:

• Dual-channel DUART architecture with identical channel count
• 16-byte FIFO configuration per channel
• Maximum data rate of 1 Mbps
• Supply voltage range of 4.75V to 5.25V
• Modem control functionality
• False start bit detection capability
• 68-LCC (J-Lead) package with 68-PLCC (24.23x24.23) physical dimensions
• Surface mount mounting type
• ROHS3 compliance and MSL 3 rating

Parts meeting all these parameters are classified as parametric equivalents and direct substitutes. No functional, electrical, or mechanical deviations are permitted for substitute classification.

Parameter Comparison

Engineering Selection Recommendations

Both the TL16C552AFNR and TL16C552FNR maintain active product status with full regulatory compliance. Selection between these parts is based on availability and supply chain requirements rather than functional differentiation. Both devices carry ROHS3 compliance and REACH unaffected status, ensuring compatibility with current environmental and regulatory standards. The identical MSL 3 rating (168 hours) applies to both parts, requiring equivalent moisture control during storage and handling. Both parts are classified under ECCN EAR99 and share the same HTSUS code, indicating equivalent export and tariff treatment.

Frequently Asked Questions (FAQ)

Q: Can TL16C552FNR be used as a direct replacement for TL16C552AFNR?

A: Yes. Both parts share identical electrical specifications, channel configuration, FIFO depth, data rate capability, supply voltage requirements, and package dimensions. The 68-PLCC (24.23x24.23) surface mount package is physically and functionally equivalent between both parts.

Q: Are there differences in modem control or flow control capabilities?

A: No. Both the TL16C552AFNR and TL16C552FNR include modem control functionality and false start bit detection. No functional differences exist in communication protocol support or control features.

Q: What is the significance of the package designation 68-LCC (J-Lead) versus 68-PLCC?

A: The 68-LCC (J-Lead) refers to the package style, while 68-PLCC (24.23x24.23) specifies the physical dimensions and pin configuration. Both designations describe the same physical package used for both substitute parts, ensuring mechanical compatibility in PCB layouts.

Q: Do both parts require identical moisture handling procedures?

A: Yes. Both parts carry MSL 3 rating with 168-hour floor life. Identical moisture sensitivity precautions and storage conditions apply to both the TL16C552AFNR and TL16C552FNR.

Q: Are there any compliance or certification differences between these parts?

A: No. Both parts maintain ROHS3 compliance, REACH unaffected status, and identical ECCN and HTSUS classifications. Regulatory and environmental compliance is equivalent.