SC16C752IB48,151 Equivalent & Substitute Parts

Part Overview

The SC16C752IB48,151 is a dual-channel UART interface IC with 64-byte FIFO, manufactured by NXP USA Inc. in a 48-LQFP surface mount package. This component supports multiple supply voltages (2.5V, 3.3V, 5V), auto flow control, modem control, and false start bit detection at a maximum data rate of 5Mbps. The part is classified as obsolete, making equivalent substitutes necessary for new designs and ongoing production support.

Substiute Parts

SC16C752IB48,151

NXP USA Inc.In Stock: 989SC16C752IB48,151 Datasheet

Current PartRFQ

SC16C752BIB48,151

NXP USA Inc.In Stock: 1319SC16C752BIB48,151 Datasheet

Parametric EquivalentRFQ

SC16C752BIB48,157

NXP USA Inc.In Stock: 996SC16C752BIB48,157 Datasheet

Parametric EquivalentRFQ

XR16L2750IM-F

MaxLinear, Inc.In Stock: 9969XR16L2750IM-F Datasheet

MFR RecommendedRFQ

XR16L2750IMTR-F

MaxLinear, Inc.In Stock: 846XR16L2750IMTR-F Datasheet

MFR RecommendedRFQ

XR16M752IM48-F

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

MFR RecommendedRFQ

XR16M752IM48TR-F

MaxLinear, Inc.In Stock: 4886XR16M752IM48TR-F Datasheet

MFR RecommendedRFQ

XR68M752IM48-F

MaxLinear, Inc.In Stock: 1854XR68M752IM48-F Datasheet

MFR RecommendedRFQ

XR68M752IM48TR-F

MaxLinear, Inc.In Stock: 2717XR68M752IM48TR-F Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the SC16C752IB48,151 is determined by the following critical parameters:

Core Functional Requirements:

• Dual-channel UART (DUART) architecture
• 64-byte FIFO buffer
• Auto flow control capability
• Modem control support
• False start bit detection
• 48-pin LQFP package (7x7mm footprint)
• Surface mount technology

Voltage Compatibility Considerations:

• Original part operates at 2.5V, 3.3V, 5V
• Substitute parts must support at least the voltage range required by the application
• Some substitutes offer extended voltage ranges (1.62V–3.63V or 2.25V–5.5V), which are backward compatible

Performance Envelope:

• Original part: 5Mbps maximum data rate
• Substitutes with higher data rates (6.25Mbps, 16Mbps) are functionally compatible for lower-speed applications
• Protocol support (RS232, RS422, RS485) in substitutes is additive and does not prevent substitution

Packaging Variants:

• Tray and Tape & Reel (TR) packaging are interchangeable for the same electrical part
• Package case differences (48-LQFP vs. 48-TQFP) require PCB footprint verification

Parameter Comparison

Engineering Selection Recommendations

NXP SC16C752 Series (Obsolete): SC16C752BIB48,151 and SC16C752BIB48,157 are direct parametric equivalents to the SC16C752IB48,151. All three parts share identical electrical specifications, FIFO architecture, and package footprint. These NXP variants are suitable only for legacy system maintenance where component availability permits. All three parts are obsolete and have limited inventory.

MaxLinear XR16L2750 Series (Active Status): XR16L2750IM-F and XR16L2750IMTR-F are manufacturer-recommended substitutes with active product status. These parts maintain the dual-channel DUART architecture, 64-byte FIFO, and all control features of the original. The extended voltage range (2.25V–5.5V) provides broader application compatibility. Higher data rate capability (6.25Mbps) supports legacy 5Mbps applications without limitation. MSL rating of 3 requires standard moisture control during storage and assembly. Packaging differs (48-TQFP vs. 48-LQFP); PCB footprint compatibility must be confirmed.

MaxLinear XR16M752 Series (Active Status): XR16M752IM48-F and XR16M752IM48TR-F offer enhanced performance with 16Mbps data rate capability and support for RS232, RS422, and RS485 protocols. Voltage supply range (1.62V–3.63V) is optimized for low-power applications. These parts are suitable for designs requiring higher data throughput or multi-protocol support. Package case is 48-TQFP; footprint verification is required.

MaxLinear XR68M752 Series (Active Status): XR68M752IM48-F and XR68M752IM48TR-F provide the same performance envelope as the XR16M752 series with identical electrical specifications. Selection between XR16M752 and XR68M752 variants depends on packaging preference (Tray vs. Tape & Reel) and supply chain availability. Both are active products with substantial inventory.

Compliance and Certification: All substitute parts maintain ROHS3 compliance or equivalent RoHS certification, ensuring regulatory alignment with the original component. REACH status is unaffected across all variants. ECCN classifications remain consistent (EAR99 or 5A991B1), supporting export compliance requirements.

Frequently Asked Questions (FAQ)

Q: Can I use XR16L2750IM-F as a direct replacement for SC16C752IB48,151 without PCB modifications?

A: Electrical substitution is valid; however, package case differs (48-TQFP vs. 48-LQFP). Both are 48-pin packages with 7x7mm footprints, but pin layout and solder pad geometry may differ. PCB footprint compatibility must be confirmed with the component datasheets before assembly.

Q: What is the difference between XR16M752IM48-F and XR68M752IM48-F?

A: Both parts have identical electrical specifications, channel count, FIFO size, data rate, voltage range, and protocol support. The primary difference is packaging: XR16M752IM48-F is supplied in Tray; XR68M752IM48TR-F is supplied in Tape & Reel (TR). Electrical performance and functionality are equivalent.

Q: Why do the MaxLinear substitutes have higher data rates (6.25Mbps or 16Mbps) than the original 5Mbps part?

A: Higher maximum data rate capability in substitute parts does not affect compatibility with 5Mbps applications. The original part's 5Mbps specification is a design limit; substitutes with higher ratings operate at lower speeds without performance degradation. This provides design flexibility for future upgrades.

Q: Are the NXP SC16C752BIB48,151 and SC16C752BIB48,157 interchangeable with SC16C752IB48,151?

A: Yes. All three NXP parts share identical electrical parameters, FIFO architecture, channel configuration, and package specifications. Differences are limited to packaging format (Tray vs. other variants) and internal revision codes. They are parametric equivalents suitable for direct substitution in legacy applications.

Q: What does MSL rating 3 (168 Hours) mean for the MaxLinear substitutes?

A: MSL 3 indicates the component can be exposed to moisture for up to 168 hours (7 days) at specified temperature and humidity conditions before assembly. This is standard for most modern surface mount components. Storage in dry conditions and use of desiccant packaging during shipment is recommended to maintain component integrity.

Q: Can I substitute an XR16M752 (16Mbps) for a 5Mbps application?

A: Yes. The XR16M752 series supports 16Mbps maximum data rate, which encompasses all lower-speed applications including 5Mbps. The part operates at the speed configured by the host system; higher rated capability does not force higher operation. Voltage supply range (1.62V–3.63V) must be compatible with your application's power budget.

Q: What is the difference between Tray and Tape & Reel (TR) packaging?

A: Tray packaging is used for manual handling and smaller production volumes. Tape & Reel packaging is used for automated assembly lines and high-volume production. Electrical specifications are identical; selection depends on manufacturing process requirements and supply chain logistics.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed substitutes maintain ROHS3 compliance or equivalent RoHS certification. The original SC16C752IB48,151 is ROHS3 compliant, and all substitutes meet or exceed this standard, ensuring regulatory alignment for new designs and production.