XR68C92IV-F Equivalent & Substitute Parts

Part Overview

The XR68C92IV-F is a dual UART (DUART) interface IC manufactured by MaxLinear, Inc., housed in a 44-LQFP package. This component features a 16-byte FIFO, configurable GPIO, internal oscillator, and timer/counter functionality, supporting data rates up to 230.4 kbps across a 2.97V to 5.5V supply range with integrated auto flow control.

The XR68C92IV-F is classified as obsolete. Substitute parts are necessary to maintain system compatibility and ensure continued availability for new designs or legacy system maintenance. Active alternatives from MaxLinear and cross-manufacturer options from Texas Instruments provide equivalent or enhanced functionality within compatible package footprints.

Substiute Parts

XR68C92IV-F

MaxLinear, Inc.In Stock: 3445XR68C92IV-F Datasheet

Current PartRFQ

XR68C192CV-F

MaxLinear, Inc.In Stock: 1519XR68C192CV-F Datasheet

Parametric EquivalentRFQ

XR68C192IV-F

MaxLinear, Inc.In Stock: 1411XR68C192IV-F Datasheet

Parametric EquivalentRFQ

XR88C192CV-F

MaxLinear, Inc.In Stock: 1237XR88C192CV-F Datasheet

Parametric EquivalentRFQ

TL28L92FR

Texas InstrumentsIn Stock: 823TL28L92FR Datasheet

MFR RecommendedRFQ

TL28L92IFR

Texas InstrumentsIn Stock: 65808TL28L92IFR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict alignment with the following parameters:

• Package Compatibility: 44-LQFP or 44-QFP (10x10) footprint
• Channel Configuration: 2 DUART channels with 16-byte FIFO
• Voltage Supply Range: Minimum 2.97V to 5.5V or equivalent industrial range (3.3V, 5V)
• Data Rate: Minimum 230.4 kbps capability
• Auto Flow Control: Present in MaxLinear variants; absent in Texas Instruments variants
• Mounting Type: Surface Mount
• Moisture Sensitivity: MSL 3 (168 Hours)

Substitute parts are grouped into two categories:

1. MaxLinear Parametric Equivalents (XR68C192CV-F, XR68C192IV-F, XR88C192CV-F): Identical electrical specifications, same manufacturer, active product status, compatible packaging.

2. Texas Instruments Cross-Manufacturer Alternatives (TL28L92FR, TL28L92IFR): Enhanced data rate capability (1 Mbps), different package designation (44-QFP vs. 44-LQFP), additional modem control and false start bit detection features, active product status.

Parameter Comparison

Engineering Selection Recommendations

MaxLinear Parametric Equivalents (XR68C192CV-F, XR68C192IV-F, XR88C192CV-F) are the primary substitutes for the obsolete XR68C92IV-F. All three maintain identical electrical specifications, package footprint compatibility, and feature set. Selection among these three should be based on:

• XR68C192CV-F: Active status, RoHS Compliant, Tray packaging, 1498 units in stock
• XR68C192IV-F: Active status, ROHS3 Compliant, REACH Unaffected, Tray packaging, 1355 units in stock
• XR88C192CV-F: Active status, RoHS Compliant, 1181 units in stock

XR68C192IV-F is recommended for new designs requiring ROHS3 and REACH compliance documentation.

Texas Instruments Cross-Manufacturer Alternatives (TL28L92FR, TL28L92IFR) provide enhanced performance with 1 Mbps data rate capability and additional modem control and false start bit detection features. These are suitable for applications requiring higher data throughput. Both are ROHS3 Compliant and REACH Unaffected. Selection considerations:

• TL28L92FR: Active status, 716 units in stock
• TL28L92IFR: Active status, 65780 units in stock (highest availability)

Package footprint differs (44-QFP vs. 44-LQFP); PCB layout verification is required before substitution. Auto flow control is not present in Texas Instruments variants; system design must accommodate this functional difference.

Frequently Asked Questions (FAQ)

Q: Can XR68C192CV-F, XR68C192IV-F, and XR88C192CV-F be used interchangeably with XR68C92IV-F?

A: Yes. All three MaxLinear parts maintain identical electrical specifications, channel configuration, FIFO size, data rate, supply voltage range, and package footprint (44-LQFP 10x10). Mechanical and electrical compatibility is confirmed. Selection should prioritize active product status and compliance certifications (ROHS3, REACH) for new designs.

Q: What are the key differences between MaxLinear and Texas Instruments substitutes?

A: MaxLinear substitutes (XR68C192 series) provide identical specifications to the original part. Texas Instruments alternatives (TL28L92 series) offer enhanced data rate (1 Mbps vs. 230.4 kbps), modem control, and false start bit detection. However, Texas Instruments parts lack auto flow control and use 44-QFP packaging instead of 44-LQFP. Voltage supply differs: MaxLinear supports 2.97V–5.5V; Texas Instruments supports 3.3V and 5V discrete levels.

Q: Are there package compatibility concerns when substituting with Texas Instruments parts?

A: Yes. Texas Instruments TL28L92 series use 44-QFP packaging, while the original XR68C92IV-F and MaxLinear substitutes use 44-LQFP. Both are 10x10 mm footprints with 44 pins, but QFP and LQFP have different lead geometries. PCB layout and footprint verification is mandatory before substitution. Consult component datasheets for precise pin spacing and solder pad dimensions.

Q: Which substitute offers the best compliance for regulated applications?

A: XR68C192IV-F (MaxLinear) and both Texas Instruments parts (TL28L92FR, TL28L92IFR) are ROHS3 Compliant and REACH Unaffected. These are suitable for applications requiring environmental and regulatory compliance documentation. XR68C192CV-F and XR88C192CV-F are RoHS Compliant but lack REACH status documentation.

Q: What is the inventory status of each substitute?

A: XR68C192IV-F: 1355 units; XR68C192CV-F: 1498 units; XR88C192CV-F: 1181 units; TL28L92FR: 716 units; TL28L92IFR: 65780 units. TL28L92IFR has the highest availability.

Q: Does the absence of auto flow control in Texas Instruments parts affect system design?

A: Yes. If the original design relies on auto flow control functionality, Texas Instruments substitutes require alternative flow control implementation at the system level. MaxLinear substitutes retain this feature and are preferred for designs dependent on hardware flow control.