SP503CM-L >
SP503CM-L
MaxLinear, Inc.
IC TRANSCEIVER FULL 7/7 80LQFP
1817 Pcs New Original In Stock
7/7 Transceiver Full Multiprotocol 80-LQFP (14x14)
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SP503CM-L MaxLinear, Inc.
5.0 / 5.0 - (212 Ratings)

SP503CM-L

Product Overview

6690449

DiGi Electronics Part Number

SP503CM-L-DG

Manufacturer

MaxLinear, Inc.
SP503CM-L

Description

IC TRANSCEIVER FULL 7/7 80LQFP

Inventory

1817 Pcs New Original In Stock
7/7 Transceiver Full Multiprotocol 80-LQFP (14x14)
Quantity
Minimum 1

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SP503CM-L Technical Specifications

Category Interface, Drivers, Receivers, Transceivers

Manufacturer MaxLinear

Packaging -

Series -

Product Status Obsolete

Type Transceiver

Protocol Multiprotocol

Number of Drivers/Receivers 7/7

Duplex Full

Data Rate 5Mbps

Voltage - Supply 4.75V ~ 5.25V

Operating Temperature 0°C ~ 70°C

Mounting Type Surface Mount

Package / Case 80-LQFP

Supplier Device Package 80-LQFP (14x14)

Datasheet & Documents

HTML Datasheet

SP503CM-L-DG

Environmental & Export Classification

Moisture Sensitivity Level (MSL) 3 (168 Hours)
ECCN EAR99
HTSUS 8542.39.0001

Additional Information

Standard Package
90

Reviews

5.0/5.0-(Show up to 5 Ratings)
月明***ード
December 02, 2025
5.0
商品が届いたときの包装も丁寧で、品質へのこだわりが伝わってきました。信頼できる会社です。
Fede***nger
December 02, 2025
5.0
Das Personal ist immer freundlich und beantwortet geduldig alle meine Fragen.
さ***ん
December 02, 2025
5.0
追跡情報が充実しているため、万が一のトラブルも迅速に対応可能です。
Sunn***deUp
December 02, 2025
5.0
I trust DiGi Electronics for their reliable and professional customer support.
Daw***aser
December 02, 2025
5.0
Their commitment to transparent pricing really builds trust and confidence.
Glowi***orizon
December 02, 2025
5.0
I trust DiGi Electronics because they prioritize quality above all.
Drea***aves
December 02, 2025
5.0
The pricing strategy at DiGi Electronics is really compelling.
Vel***Sky
December 02, 2025
5.0
They truly prioritize customer satisfaction, which I greatly appreciate.
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Frequently Asked Questions (FAQ)

What are the key design-in risks when using the SP503CM-L in new projects given its obsolete status from MaxLinear, Inc.?

Using the SP503CM-L in new designs carries significant supply chain risks due to its obsolete status. While 1710 units are available as new original stock, long-term availability is not guaranteed, increasing risk of production interruptions. Engineers should evaluate last-time buy options and prioritize identifying drop-in replacements or redesign paths early. Consider implementing a lifecycle management plan, including inventory buffering and alternative sourcing strategies, to mitigate obsolescence-related delays or redesign costs down the line.

How does the SP503CM-L compare to the MAX3088E in terms of protocol compatibility and drop-in replacement feasibility?

The SP503CM-L and MAX3088E are not direct replacements despite both being transceivers. The SP503CM-L supports multiprotocol full transceiver operation (7/7 channels) at 5Mbps, while the MAX3088E is a single-channel RS-485 transceiver. Mechanical compatibility is also limited—SP503CM-L uses an 80-LQFP (14x14) package versus MAX3088E’s smaller footprint. For multi-drop or multi-protocol systems, replacing SP503CM-L would require not only a complete PCB redesign but also validation of timing and loading across multiple nodes, increasing engineering effort.

What are the implications of the SP503CM-L's 4.75V to 5.25V supply voltage range in modern 3.3V-based systems?

The SP503CM-L requires a 5V supply (4.75V–5.25V), which poses integration challenges in modern 3.3V-centric designs. Direct interfacing with 3.3V microcontrollers or FPGAs risks unreliable logic levels or damage if not properly level-shifted. Use bidirectional level translators on control lines and ensure isolation or buffering on GPIOs. Also, consider the power system impact—maintaining a separate 5V rail adds cost and complexity. Evaluate voltage tolerance of connected devices to prevent latent field failures.

Can the SP503CM-L reliably operate at the upper limit of its 5Mbps data rate in electrically noisy industrial environments?

While the SP503CM-L is rated for 5Mbps, achieving reliable operation at this rate in noisy environments depends on signal integrity measures. In industrial settings with ground loops or EMI, cable length, termination, and shielding become critical. Use controlled impedance routing, proper 120Ω differential termination, and twisted-pair cabling to maintain signal quality. For longer runs or harsh conditions, derating to 2.5Mbps or below may be necessary to avoid data corruption. Always validate under real-world operating conditions, especially near the 70°C upper temperature limit.

What PCB layout and handling precautions are necessary for the SP503CM-L given its MSL 3 (168-hour) rating and 80-LQFP package?

The SP503CM-L’s MSL 3 rating requires strict handling: store in dry packaging and assemble within 168 hours after exposure to ambient conditions above 30°C/60% RH. For the 80-LQFP package, ensure precise thermal profiling during reflow to avoid solder voids or pad misalignment. Use proper escape routing for dense LQFP pins—consider staggered via placement to prevent solder wicking. Include thermal relief on ground planes and follow IPC-7351 footprint standards to ensure manufacturability and field reliability under temperature cycling.

Quality Assurance (QC)

DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.

Quality Assurance
Counterfeit and defect prevention

Counterfeit and defect prevention

Comprehensive screening to identify counterfeit, refurbished, or defective components, ensuring only authentic and compliant parts are delivered.

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Visual and packaging inspection

Electrical performance verification

Verification of component appearance, markings, date codes, packaging integrity, and label consistency to ensure traceability and conformity.

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SP503CM-L CAD Models
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