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SC16C652IB48,151 Equivalent & Substitute Parts
Part Overview
The SC16C652IB48,151 is a dual-channel UART interface IC with integrated FIFO memory, manufactured by NXP USA Inc. This component operates across multiple voltage supplies (2.5V, 3.3V, 5V) and supports advanced serial communication features including auto flow control, false start bit detection, and modem control. The part is classified as obsolete, making equivalent substitutes necessary for new designs and ongoing production support.
Substiute Parts
Key Parameters
| Parameter | SC16C652IB48,151 |
|---|---|
| Manufacturer | NXP USA Inc. |
| Number of Channels | 2 (DUART) |
| FIFO Size | 32 Byte |
| Data Rate (Max) | 5 Mbps |
| Voltage Supply | 2.5V, 3.3V, 5V |
| Auto Flow Control | Yes |
| False Start Bit Detection | Yes |
| Modem Control | Yes |
| Package | 48-LQFP (7x7) |
| Mounting Type | Surface Mount |
| Product Status | Obsolete |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
Substitution for the SC16C652IB48,151 is determined by the following critical parameters:
- Dual-channel UART architecture (DUART): All substitutes maintain 2-channel configuration
- Surface mount 48-pin package: All substitutes use 48-TQFP (7x7) form factor, compatible with 48-LQFP footprints
- Auto flow control, false start bit detection, and modem control: All substitutes include these features
- Voltage supply compatibility: Substitutes support overlapping or extended voltage ranges
- FIFO memory: Substitutes feature 64-byte FIFO, exceeding the original 32-byte specification
The MaxLinear XR-series parts (XR16L2750 and XR16M752/XR68M752 families) provide direct functional equivalence with enhanced specifications. Packaging variants (Tray vs. Tape & Reel) do not affect electrical compatibility.
Parameter Comparison
| Parameter | SC16C652IB48,151 | XR16L2750IM-F | XR16L2750IMTR-F | XR16M752IM48-F | XR16M752IM48TR-F | XR68M752IM48-F | XR68M752IM48TR-F |
|---|---|---|---|---|---|---|---|
| Manufacturer | NXP USA Inc. | MaxLinear, Inc. | MaxLinear, Inc. | MaxLinear, Inc. | MaxLinear, Inc. | MaxLinear, Inc. | MaxLinear, Inc. |
| Number of Channels | 2 (DUART) | 2 (DUART) | 2 (DUART) | 2 (DUART) | 2 (DUART) | 2 (DUART) | 2 (DUART) |
| FIFO Size | 32 Byte | 64 Byte | 64 Byte | 64 Byte | 64 Byte | 64 Byte | 64 Byte |
| Protocol Support | — | RS232, RS485 | RS232, RS485 | RS232, RS422, RS485 | RS232, RS422, RS485 | RS232, RS422, RS485 | RS232, RS422, RS485 |
| Data Rate (Max) | 5 Mbps | 6.25 Mbps | 6.25 Mbps | 16 Mbps | 16 Mbps | 16 Mbps | 16 Mbps |
| Voltage Supply | 2.5V, 3.3V, 5V | 2.25V ~ 5.5V | 2.25V ~ 5.5V | 1.62V ~ 3.63V | 1.62V ~ 3.63V | 1.62V ~ 3.63V | 1.62V ~ 3.63V |
| Auto Flow Control | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| IrDA Encoder/Decoder | — | Yes | Yes | Yes | Yes | Yes | Yes |
| False Start Bit Detection | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Modem Control | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Package / Case | 48-LQFP (7x7) | 48-TQFP (7x7) | 48-TQFP (7x7) | 48-TQFP (7x7) | 48-TQFP (7x7) | 48-TQFP (7x7) | 48-TQFP (7x7) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Product Status | Obsolete | Active | Active | Active | Active | Active | Active |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | RoHS Compliant | ROHS3 Compliant | RoHS Compliant | ROHS3 Compliant | RoHS Compliant |
| MSL Rating | 1 (Unlimited) | 3 (168 Hours) | 3 (168 Hours) | 3 (168 Hours) | 3 (168 Hours) | 3 (168 Hours) | 3 (168 Hours) |
Engineering Selection Recommendations
All substitute parts listed are active products with current manufacturing support, addressing the obsolescence status of the SC16C652IB48,151. Selection between substitute options depends on system requirements:
XR16L2750 Series (XR16L2750IM-F, XR16L2750IMTR-F): Suitable for applications requiring RS232 and RS485 protocol support with extended voltage range (2.25V ~ 5.5V). Data rate capability of 6.25 Mbps exceeds the original 5 Mbps specification. Available in both Tray and Tape & Reel packaging.
XR16M752 Series (XR16M752IM48-F, XR16M752IM48TR-F): Provides RS232, RS422, and RS485 protocol support with maximum data rate of 16 Mbps. Voltage supply range is 1.62V ~ 3.63V, suitable for low-voltage applications. Available in both Tray and Tape & Reel packaging.
XR68M752 Series (XR68M752IM48-F, XR68M752IM48TR-F): Functionally equivalent to XR16M752 series with identical electrical specifications and protocol support. Packaging options include Tray and Tape & Reel variants.
All substitutes maintain RoHS compliance and are suitable for direct PCB footprint replacement with 48-pin surface mount packages.
Frequently Asked Questions (FAQ)
Q: Can the XR16L2750 series directly replace the SC16C652IB48,151 in existing designs?
A: Yes. The XR16L2750 maintains dual-channel UART architecture, 48-pin surface mount package, and all required control features (auto flow control, false start bit detection, modem control). The 64-byte FIFO provides enhanced buffering compared to the original 32-byte specification. Voltage supply range of 2.25V ~ 5.5V encompasses the original 2.5V, 3.3V, and 5V requirements.
Q: What is the difference between XR16M752 and XR68M752 series?
A: Both series provide identical electrical specifications, including dual-channel UART, 64-byte FIFO, 16 Mbps maximum data rate, and RS232/RS422/RS485 protocol support. The primary distinction is packaging format: standard Tray (IM48-F) or Tape & Reel (IM48TR-F).
Q: Are 48-LQFP and 48-TQFP packages footprint compatible?
A: Yes. Both package types are 48-pin, 7x7mm surface mount packages with identical pin pitch and layout. PCB designs using 48-LQFP footprints accommodate 48-TQFP components without modification.
Q: Which substitute part supports the widest voltage range?
A: The XR16L2750 series supports 2.25V ~ 5.5V, the widest range among available substitutes. The XR16M752 and XR68M752 series support 1.62V ~ 3.63V, suitable for low-voltage applications but not compatible with 5V-only systems.
Q: What is the significance of MSL (Moisture Sensitivity Level) differences?
A: The original SC16C652IB48,151 has MSL 1 (unlimited shelf life). All substitute parts have MSL 3 (168-hour limit), requiring controlled storage conditions. Components must be used within 168 hours of package opening under standard humidity conditions.
Q: Are Tape & Reel variants electrically identical to Tray variants?
A: Yes. Packaging format (Tray vs. Tape & Reel) affects only handling and storage logistics. Electrical specifications, performance characteristics, and functional capabilities are identical between variants of the same part number base.
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