SP335EER1-L/TR MaxLinear, Inc. Integrated Circuit (Quad Flat No-Lead) In Stock
MaxLinear SP335EER1-L/TR is a multi-protocol RS-232/RS-485/RS-422 transceiver with internal termination resistors in a 32-pin QFN package, supporting software-selectable interface standards for flexible serial communication designs. Features 2 drivers and 2 receivers with differential Schmitt-trigger inputs and operates from a single 3.3 V or 5 V supply. Available in tape-and-reel packaging from global distributors for industrial and communications applications.
- Manufacturer
- MaxLinear, Inc.
- Package
- Quad Flat No-Lead
- Pin Count
- 33
- Lifecycle
- ACTIVE
- Datasheet
- SP335EER1-L/TR Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $3.3723(MOQ 52)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Supports RS-232, RS-485, and RS-422 in a single IC with software-selectable interface standards for design flexibility
- Integrated internal termination resistors eliminate external components and simplify PCB layout for RS-485/422 bus termination
- Differential Schmitt-trigger inputs with high noise immunity for reliable operation in electrically noisy industrial environments
- 32-pin QFN (S-XQCC-N32) package enables compact PCB footprint suitable for space-constrained embedded and communications designs
Applications
The SP335EER1-L/TR is designed for industrial automation systems, factory floor networks, and RS-485/422 multi-drop bus applications where a single transceiver IC must support multiple serial interface standards without board redesign. Its internal termination resistors and software-selectable RS-232/RS-485/RS-422 modes make it ideal for programmable logic controllers (PLCs), HMI panels, and gateway devices communicating across mixed protocol environments. The compact 32-pin QFN package and tape-and-reel format support high-volume automated assembly in industrial embedded computing and communications equipment.
Specifications
| Factory Lead Time | 20Weeks |
| YTEOL | 6 |
| Additional Feature | IT ALSO SUPPORTS 1 DRIVER, 1 RECEIVER WITH INTERFACE STANDARD RS-485/422 |
| Differential Output | YES |
| Driver Number of Bits | 2 |
| Input Characteristics | DIFFERENTIAL SCHMITT TRIGGER |
| Interface IC Type | LINE TRANSCEIVER |
| Interface Standard | EIA-232; V.28 |
| JESD-30 Code | S-XQCC-N32 |
| JESD-609 Code | e3 |
| Number of Functions | 2 |
| Package Body Material | UNSPECIFIED |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Receive Delay-Max | 150ns |
| Receiver Number of Bits | 2 |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 3V |
| Supply Voltage-Nom | 3.3V |
| Surface Mount | YES |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Transmit Delay-Max | 1000ns |
| Package | Quad Flat No-Lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 2 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for SP335EER1-L/TR:
suggested
Frequently Asked Questions
Which serial interface standards does the SP335EER1-L/TR support and how is the selection made?
The SP335EER1-L/TR supports RS-232 (EIA-232/V.28), RS-485, and RS-422 interface standards, with the active standard selected via software control pins. This multi-protocol capability allows a single 32-pin QFN IC to replace three separate transceivers, simplifying BOM and board layout for multi-protocol industrial gateway and PLC designs.
How do the internal termination resistors in the SP335EER1-L/TR benefit RS-485 bus designs?
The integrated termination resistors in the SP335EER1-L/TR eliminate the need for external 120-ohm line termination components on RS-485 and RS-422 differential buses, reducing component count and PCB area. This is especially valuable in industrial multi-drop networks with data rates up to several Mbps where proper bus termination is required to prevent signal reflections and ensure data integrity.
What driver and receiver configuration does the SP335EER1-L/TR provide for RS-485/422 operation?
In RS-485/422 mode, the SP335EER1-L/TR provides 2 drivers and 2 receivers with differential Schmitt-trigger inputs, enabling full-duplex RS-422 communication or half-duplex RS-485 multi-drop bus operation. The differential Schmitt-trigger receiver inputs provide at least 50 mV hysteresis for robust noise immunity in electrically noisy factory automation environments.
Is the SP335EER1-L/TR in a QFN package suitable for compact industrial PCB designs?
Yes, the SP335EER1-L/TR uses a 32-pin QFN (Quad Flat No-Lead) package with a small, low-profile footprint that is well-suited for space-constrained industrial embedded boards, HMI panels, and serial communication modules. The QFN package also provides excellent thermal performance compared to larger SOIC or TSSOP alternatives for the same multi-protocol transceiver function.
Related Guides
1206 100 uF MLCC Design Guide for Compact Bulk Decoupling
Design guidance for applying CL31A107MQHNNNE and related 1206 MLCCs in compact bulk decoupling networks.
Jul 3, 2026
0402 10 nF MLCC Design Guide for High-Speed Decoupling
Practical design guidance for using CL05B103KB5NNNC and related 0402 MLCCs in high-speed decoupling networks.
Jul 3, 2026
CL31A107MQHNNNE 1206 100 uF MLCC Selection Guide
How to choose CL31A107MQHNNNE and related 1206 MLCCs for low-voltage bulk capacitance and regulator stability.
Jul 2, 2026
CL05B103KB5NNNC 0402 10 nF X7R MLCC Selection Guide
How to choose CL05B103KB5NNNC and related 0402 MLCCs for bypassing, filtering, voltage derating, and sourcing.
Jul 2, 2026
Why Buy from FindMyChip
About MaxLinear, Inc.
MaxLinear, Inc. is a leading electronic component manufacturer. FindMyChip sources MaxLinear, Inc. ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
More from MaxLinear, Inc.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 52+ | $3.8911 | $202.34 |
| 67+ | $3.7614 | $252.01 |
| 89+ | $3.3723 | $300.13 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”