XR16M752IL32-F Equivalent & Substitute Parts

Part Overview

The XR16M752IL32-F is a dual-channel UART interface IC manufactured by MaxLinear, Inc., featuring 64-byte FIFO buffers and support for RS232, RS422, and RS485 protocols. This component is classified as obsolete, which necessitates identification of active alternative parts that maintain functional and electrical compatibility for new designs or production transitions.

Substiute Parts

XR16M752IL32-F

MaxLinear, Inc.In Stock: 7180XR16M752IL32-F Datasheet

Current PartRFQ

XR16M752IM48-F

MaxLinear, Inc.In Stock: 4194XR16M752IM48-F Datasheet

MFR RecommendedRFQ

SC16C752BIBS,157

NXP USA Inc.In Stock: 903SC16C752BIBS,157 Datasheet

MFR RecommendedRFQ

TL16C2550IRHB

Texas InstrumentsIn Stock: 1224TL16C2550IRHB Datasheet

MFR RecommendedRFQ

TL16C2550IRHBR

Texas InstrumentsIn Stock: 989TL16C2550IRHBR Datasheet

MFR RecommendedRFQ

TL16C2550RHB

Texas InstrumentsIn Stock: 1334TL16C2550RHB Datasheet

MFR RecommendedRFQ

TL16C2550RHBR

Texas InstrumentsIn Stock: 865TL16C2550RHBR Datasheet

MFR RecommendedRFQ

TL16C752CIRHBR

Texas InstrumentsIn Stock: 34989TL16C752CIRHBR Datasheet

MFR RecommendedRFQ

TL16C752CRHBR

Texas InstrumentsIn Stock: 1997TL16C752CRHBR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the XR16M752IL32-F is determined by the following critical parameters:

Primary Compatibility Criteria:

• Dual-channel UART architecture (2 DUART channels)
• 64-byte FIFO buffer capacity
• RS232, RS422, RS485 protocol support
• 32-pin VFQFN package footprint (5x5mm)
• Auto flow control capability
• Modem control support
• False start bit detection

Substitution Groups:

Group 1: Direct Package & Protocol Match (32-VFQFN, 64-byte FIFO, Full Protocol Support)

• TL16C752CIRHBR (Texas Instruments)
• TL16C752CRHBR (Texas Instruments)

These parts maintain identical package geometry, 64-byte FIFO, and support RS485 protocol with full feature parity including IrDA encoder/decoder and modem control.

Group 2: Same Package, Reduced FIFO, Limited Protocol (32-VFQFN, 16-byte FIFO)

• TL16C2550IRHB (Texas Instruments)
• TL16C2550IRHBR (Texas Instruments)
• TL16C2550RHB (Texas Instruments)
• TL16C2550RHBR (Texas Instruments)

These parts share the 32-VFQFN package and core UART functionality but feature reduced 16-byte FIFO and lower maximum data rate (1.5 Mbps). Suitable only for applications with lower throughput requirements.

Group 3: Different Package, Full Feature Match (48-TQFP, 64-byte FIFO)

• XR16M752IM48-F (MaxLinear, Inc.)

This part maintains full functional equivalence with 64-byte FIFO and 16 Mbps data rate but uses a larger 48-TQFP package (7x7mm), requiring PCB layout modification.

Group 4: Same Package, Reduced Protocol Support (32-HVQFN, 64-byte FIFO)

• SC16C752BIBS,157 (NXP USA Inc.)

This part matches the 32-pin package footprint and 64-byte FIFO but operates at lower maximum data rate (5 Mbps) and supports discrete voltage levels (2.5V, 3.3V, 5V) rather than continuous range.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Same Package, No Layout Changes):

TL16C752CIRHBR and TL16C752CRHBR are the preferred substitutes when package footprint must remain unchanged. Both parts maintain the 32-VFQFN (5x5mm) package geometry and deliver 64-byte FIFO with RS485 protocol support. Both are active products with ROHS3 compliance and REACH unaffected status. The primary trade-off is reduced maximum data rate (3 Mbps versus 16 Mbps), which is acceptable for most industrial serial communication applications.

For Full Performance Retention:

XR16M752IM48-F preserves the 16 Mbps data rate and 64-byte FIFO capacity as a MaxLinear product. This part requires PCB layout modification due to the larger 48-TQFP package (7x7mm). This option is suitable when design constraints permit package changes and maximum data throughput must be maintained.

For Cost-Optimized Applications:

TL16C2550 variants (IRHB, IRHBR, RHB, RHBR) offer the lowest-cost alternative with identical 32-VFQFN package footprint. These parts are suitable only for applications operating below 1.5 Mbps and tolerating 16-byte FIFO buffers. All variants are active products with ROHS3 compliance.

For Discrete Voltage Supply Systems:

SC16C752BIBS,157 supports fixed voltage levels (2.5V, 3.3V, 5V) and maintains 64-byte FIFO in the 32-pin package. This part is appropriate for systems with discrete power rails and maximum data rates up to 5 Mbps. MSL rating of 1 (Unlimited) provides superior moisture tolerance compared to alternatives.

Frequently Asked Questions (FAQ)

Q: Can TL16C752CIRHBR or TL16C752CRHBR directly replace XR16M752IL32-F without PCB modification?

A: Yes. Both parts use identical 32-VFQFN (5x5mm) package footprint and pinout compatibility. No PCB layout changes are required. The primary functional difference is reduced maximum data rate (3 Mbps versus 16 Mbps), which does not affect most serial communication applications.

Q: What is the difference between TL16C752CIRHBR and TL16C752CRHBR?

A: Both parts are functionally identical. The difference is packaging format: TL16C752CIRHBR is supplied in Cut Tape (CT) & Digi-Reel format, while TL16C752CRHBR is supplied in Tape & Reel (TR) format. Selection depends on procurement and assembly requirements.

Q: Why do TL16C2550 variants have lower maximum data rates?

A: TL16C2550 series uses 16-byte FIFO buffers compared to the 64-byte FIFO in XR16M752IL32-F and TL16C752 variants. The reduced buffer depth limits sustained data throughput to 1.5 Mbps. These parts are suitable only for low-speed serial applications.

Q: Is XR16M752IM48-F a suitable replacement if PCB redesign is acceptable?

A: Yes, for applications requiring 16 Mbps data rate and 64-byte FIFO. This part maintains full functional equivalence but requires PCB layout modification due to the larger 48-TQFP (7x7mm) package. Pin count increases from 32 to 48, necessitating schematic and layout updates.

Q: What is the significance of the MSL (Moisture Sensitivity Level) rating?

A: MSL indicates moisture exposure tolerance during storage and handling. XR16M752IL32-F has MSL 2 (1 Year), while SC16C752BIBS,157 has MSL 1 (Unlimited). Lower MSL values provide greater tolerance to humidity and extended shelf life without baking requirements.

Q: Can SC16C752BIBS,157 operate at the same voltage range as XR16M752IL32-F?

A: No. XR16M752IL32-F operates at 1.62V ~ 3.63V (continuous range), while SC16C752BIBS,157 operates at discrete levels: 2.5V, 3.3V, or 5V. SC16C752BIBS,157 is suitable only for systems using these specific voltage rails.

Q: Are all substitute parts ROHS3 compliant?

A: All active substitute parts listed are ROHS3 compliant and REACH unaffected. The original XR16M752IL32-F (obsolete status) does not specify compliance certifications.

Q: What is the inventory status of substitute parts?

A: All substitute parts are active products with current inventory availability. XR16M752IM48-F has 4,144 units, SC16C752BIBS,157 has 890 units, TL16C752CIRHBR has 34,897 units, and TL16C2550 variants range from 811 to 1,296 units in stock.