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HomeProductsIntegrated Circuits (ICs)Interface - Drivers, Receivers, TransceiversSP3220EBCY-L
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SP3220EBCY-L - MaxLinear, Inc.

Manufacturer Part Number
SP3220EBCY-L
Manufacturer
Exar (MaxLinear)
Allelco Part Number
32D-SP3220EBCY-L
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
33,880 pcs available, New & Original
Parts Description
IC TRANSCEIVER FULL 1/1 16TSSOP
Package
16-TSSOP
Data sheet
SP3220EBCY-L.pdf

Datasheets

SP3220E/EB/EU.pdf

PCN Assembly/Origin

Alt Site 10/May/2017.pdf

PCN Design/Specification

SP32YYY 16/Jan/2017.pdf
RoHs Status
RoHS Compliant
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Our certification
In stock: 33880
  • Unit Price: $0.304
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $0.304 $0.30
200+ $0.118 $23.60
500+ $0.114 $57.00
1000+ $0.112 $112.00
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

SP3220EBCY-L Tech Specifications
MaxLinear, Inc. - SP3220EBCY-L technical specifications, attributes, parameters and parts with similar specifications to MaxLinear, Inc. - SP3220EBCY-L

Product Attribute Attribute Value
Manufacturer Exar (MaxLinear)
Voltage - Supply 3V ~ 5.5V
Type Transceiver
Supplier Device Package 16-TSSOP
Series -
Receiver Hysteresis 300 mV
Protocol RS232
Package / Case 16-TSSOP (0.173", 4.40mm Width)
Product Attribute Attribute Value
Package Tube
Operating Temperature 0°C ~ 70°C
Number of Drivers/Receivers 1/1
Mounting Type Surface Mount
Duplex Full
Data Rate 250kbps
Base Product Number SP3220

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status RoHS Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
ECCN EAR99
HTSUS 8542.39.0001

Parts Introduction

SP3220EBCY-L Image
SP3220EBCY-L (1)

Manufacturer Part Number

SP3220EBCY-L

Manufacturer

maxlinear

Introduction

The SP3220EBCY-L is a single-channel RS232 transceiver from maxlinear. It provides a simple and cost-effective solution for interfacing microcontrollers and other digital logic to RS232 serial communication buses. The device integrates the necessary transmitter and receiver functions in a small 16-TSSOP package, making it a compact and efficient option for space-constrained applications.

Product Features and Performance

1 driver and 1 receiver channel

Supports full-duplex communication

Receiver hysteresis of 300 mV

Data rate up to 250 kbps

Operates on a wide supply voltage range of 3 V to 5.5 V

Operating temperature range of 0°C to 70°C

Small 16-TSSOP package

Product Advantages

Integrated transmitter and receiver functions for simplified design

Wide supply voltage range and operating temperature support versatile applications

Compact 16-TSSOP package for space-constrained environments

Cost-effective solution for RS232 serial communication

Key Reasons to Choose This Product

Reliable and robust RS232 interface solution

Optimized for power-sensitive and space-limited applications

Easy to integrate with microcontrollers and other digital logic

Proven performance and quality from a trusted manufacturer

Quality and Safety Features

ESD protection on all pins

Thermal shutdown and over-current protection

Compatibility

The SP3220EBCY-L is compatible with standard RS232 communication protocols and can be used with a wide range of microcontrollers, embedded systems, and other digital devices.

Application Areas

Industrial automation and control systems

Portable and battery-powered devices

Embedded systems and IoT applications

Communication interfaces for consumer electronics

Product Lifecycle

The SP3220EBCY-L is an active product. There are no known equivalent or alternative models available at this time. If you have any further questions or need assistance, please contact our sales team through our website.

Frequently Asked Questions(FAQ)

What are the key differences between the SP3220EBCY-L and similar RS232 transceivers like the MAX3222 when considering full-duplex UART communication at 250 kbps over longer cable runs?
The SP3220EBCY-L operates at a maximum data rate of 250 kbps, which is sufficient for most embedded UART applications but falls short compared to devices like the MAX3222 that support up to 4 Mbps. While both support full-duplex RS232 communication, the MAX3222 offers significantly higher bandwidth, making it more suitable for high-speed serial links or extended reach without signal integrity degradation. For the SP3220EBCY-L, designers must account for reduced margin on longer traces or noisy environments due to its lower slew rate and limited drive strength. Additionally, the SP3220EBCY-L’s receiver hysteresis of 300 mV provides better noise immunity than some low-power alternatives, though not as robust as comparator-based inputs used in industrial-grade parts.
How does the supply voltage range of the SP3220EBCY-L impact system-level power management decisions in battery-powered embedded systems?
The SP3220EBCY-L supports a supply voltage from 3 V to 5.5 V, enabling compatibility with common logic levels in mixed-voltage environments such as 3.3 V microcontrollers paired with legacy RS232 peripherals. However, operating near the lower end (e.g., 3.0 V) reduces internal charge pump efficiency, increasing current draw during transmit operations—especially critical in low-duty-cycle designs. Unlike ultra-low-power transceivers that use automatic shutdown modes, the SP3220EBCY-L lacks explicit sleep functionality, so static current consumption becomes a fixed overhead in always-on configurations. Designers should verify total quiescent current under worst-case conditions, as typical values may exceed 1 mA even when idle, influencing battery life calculations for portable applications.
In what scenarios would the SP3220EBCY-L be preferred over opto-isolated RS232 interfaces despite the absence of built-in isolation?
The SP3220EBCY-L is advantageous in cost-sensitive, space-constrained designs where electromagnetic isolation is unnecessary, such as point-to-point connections within a single enclosure. Its compact 16-TSSOP package and RoHS compliance simplify PCB layout compared to discrete optocoupler solutions requiring separate drivers and regulators. However, without galvanic isolation, the SP3220EBCY-L cannot protect against ground loops or voltage surges common in industrial settings. Therefore, it suits office automation, test equipment, or non-critical embedded systems where environmental risks are minimal and board real estate is limited.
What design considerations arise when interfacing the SP3220EBCY-L with a microcontroller running at 3.3 V if the RS232 line driver output swings beyond the MCU’s tolerance?
Although the SP3220EBCY-L accepts 3.3 V logic inputs, its RS232 outputs typically swing between ±5 V and ±12 V depending on the external charge pump capacitors—well outside the absolute maximum ratings of most 3.3 V MCUs. To safely interface these signals, level-shifting circuitry such as resistive dividers or dedicated logic translators is required. A simple 1:1 voltage divider using 10 kΩ and 20 kΩ resistors can scale +10 V down to approximately 3.3 V, but this increases susceptibility to noise and reduces edge speed. Alternatively, using an open-collector buffer with a pull-up resistor ensures safe bidirectional compatibility. Careful attention to transient protection and ESD robustness is essential, as direct connection risks latch-up or gate oxide damage.
How does the temperature range of the SP3220EBCY-L affect its suitability for automotive or industrial deployment compared to commercial-grade alternatives?
With an operating temperature range of 0°C to 70°C, the SP3220EBCY-L is strictly confined to commercial environments and unsuitable for automotive (-40°C to +85°C) or industrial (-40°C to +85°C) applications. This limitation stems from component selection and packaging materials optimized for standard consumer electronics rather than extreme thermal cycling. At temperatures approaching 70°C, internal leakage currents increase slightly, potentially affecting receiver threshold margins. Furthermore, solder joint reliability degrades faster above 85°C, risking intermittent connectivity in harsh climates. For mission-critical systems requiring extended temperature operation, alternative parts like the MAX3232C or ISO3082 must be considered despite their larger footprint or higher cost.
When selecting decoupling capacitors for the SP3220EBCY-L, what capacitance values and placement strategy ensure stable charge pump operation across the full supply range?
The SP3220EBCY-L relies on external charge pump capacitors to generate ±5 V rails internally, typically requiring two ceramic capacitors per rail (total four). Standard practice uses 0.1 µF X7R capacitors placed within 1 cm of the respective pin pairs (C1+, C1–, C2+, C2–), with additional bulk capacitance (e.g., 1 µF) at the VCC pin for bulk filtering. At 5.5 V supply, these capacitors experience higher dielectric stress; choosing X7R instead of Y5V mitigates capacitance drift over temperature. Poor placement introduces parasitic inductance, leading to oscillations or insufficient voltage generation—particularly problematic at high data rates. Always simulate transient response under worst-case load conditions to validate stability.
Why might the SP3220EBCY-L exhibit erratic behavior when driven by a UART operating near its maximum baud rate of 250 kbps, and how can this be mitigated?
Near 250 kbps, timing margins narrow due to finite rise/fall times imposed by the SP3220EBCY-L’s output stage and capacitive loading on RS232 lines. Exceeding 250 kbps violates the device’s guaranteed specification, resulting in bit errors, framing issues, or complete failure to communicate. Mitigation strategies include reducing baud rate, minimizing trace length on TX/RX lines, avoiding long jumper cables (>0.5 m), and ensuring proper termination. Using shorter, shielded cables (< 1 m) with twisted-pair construction improves signal integrity. If higher speeds are mandatory, consider replacing the SP3220EBCY-L with a faster transceiver like the SP3485EN or MAX3232, which support multi-Mbps operation with enhanced slew control.
How does the Moisture Sensitivity Level (MSL) rating of MSL 1 for the SP3220EBCY-L influence handling procedures during manufacturing or rework?
An MSL rating of 1 indicates the SP3220EBCY-L is moisture-resistant and can withstand unlimited exposure to ambient humidity before baking is required prior to reflow soldering. This simplifies production logistics, especially in environments with variable storage conditions. However, standard IPC guidelines still recommend storing unpackaged devices in dry cabinets (<10% RH) to prevent condensation-induced popcorn cracking during thermal cycling. No special pre-bake steps are needed unless the part has been exposed to high humidity for prolonged periods, unlike higher MSL grades (e.g., MSL 3 or 4) common in fine-pitch QFNs or CSP packages.
Can the SP3220EBCY-L be used in half-duplex RS485 networks, and if not, what architectural constraints prevent this application?
No, the SP3220EBCY-L is designed exclusively for full-duplex RS232 communication with one transmitter and one receiver. It lacks differential signaling capability, multidrop support, and direction control pins required for half-duplex RS485 operation. Attempting to repurpose it for RS485 would result in protocol mismatch, undefined states, and potential hardware damage due to improper bus contention. RS485 demands dedicated transceivers like the MAX485 or SN75176, which handle differential encoding/decoding and tri-state control. The SP3220EBCY-L’s architecture assumes single-ended EIA-232 signaling, making it incompatible with multidrop topologies regardless of physical layer adaptations.
What precautions should be taken when cascading multiple SP3220EBCY-L devices on a shared UART bus, such as in daisy-chained sensor networks?
Cascading the SP3220EBCY-L devices is technically possible since each unit contains independent drivers and receivers, but practical limitations emerge from shared TX lines causing contention. Without hardware arbitration or time-division multiplexing, simultaneous transmission leads to signal collisions and data corruption. Instead, use separate UART channels per node or implement software-based polling with strict timing discipline. Alternatively, route each transceiver’s TX output through a wired-AND configuration using open-drain buffers, though this complicates error detection. Given the SP3220EBCY-L’s lack of bus arbitration features, decentralized addressing via unique command headers often proves simpler than attempting shared medium access.
How does the absence of integrated ESD protection diodes on the SP3220EBCY-L affect circuit design in environments prone to electrostatic discharge?
The SP3220EBCY-L does not include on-chip ESD diodes on its RS232 I/O pins, exposing them to potential damage from human-body model (HBM) discharges exceeding ±2 kV. In ESD-sensitive applications—such as handheld devices or lab instruments—external transient voltage suppressors (TVS) must be added near the connector. Common choices include PESD5V0S1BA or equivalent bidirectional TVS arrays rated for ±8 kV contact discharge. These clamp fast transients before they reach the IC while introducing negligible capacitance (<0.5 pF), preserving signal integrity at high frequencies. Without such protection, repeated ESD events degrade junction performance, eventually causing functional failures even within nominal operating conditions.
What role does the 300 mV receiver hysteresis play in noisy industrial environments, and how does it compare to hysteresis-free comparators?
Receiver hysteresis of 300 mV in the SP3220EBCY-L provides inherent noise rejection by creating distinct thresholds for rising and falling edges, preventing chatter caused by slow-moving common-mode noise near the transition region. Unlike zero-hysteresis comparators that oscillate with small perturbations, this feature stabilizes decision-making in electrically noisy settings such as motor drives or switch-mode power supplies. However, excessive hysteresis can reduce sensitivity to weak signals, especially over long cables where attenuation lowers signal amplitude. Compared to specialized comparator ICs offering tunable hysteresis (e.g., LM393 with external feedback), the SP3220EBCY-L offers fixed optimization favoring robustness over flexibility. Designers should verify that minimum input voltage swings exceed the sum of hysteresis and noise peak amplitudes to avoid missed detections.

Parts with Similar Specifications

The three parts on the right have similar specifications to MaxLinear, Inc. SP3220EBCY-L

Product Attribute SP3220EBCY-L/TR SP3220EBCT-L SP3220EBEY-L/TR SP3220EBCA-L
Part Number SP3220EBCY-L/TR SP3220EBCT-L SP3220EBEY-L/TR SP3220EBCA-L
Manufacturer MaxLinear, Inc. Sipex MaxLinear, Inc. MaxLinear, Inc.
Number of Drivers/Receivers - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Duplex - - - -
Receiver Hysteresis - - - -
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Data Rate - - - -
Protocol - - - -
Series - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42
Mounting Type - Surface Mount Through Hole Surface Mount
Voltage - Supply - - - -
Type - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad

SP3220EBCY-L Datasheet PDF

Download SP3220EBCY-L pdf datasheets and MaxLinear, Inc. documentation for SP3220EBCY-L - MaxLinear, Inc..

Datasheets
SP3220E/EB/EU.pdf
PCN Assembly/Origin
Alt Site 10/May/2017.pdf
PCN Design/Specification
SP32YYY 16/Jan/2017.pdf

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Customer Reviews

Evaluation: 10 Articles

  • Nath***rooks
    Jun 11, 2026

    Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.

  • Dani***alkerTech
    Jun 1, 2026

    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

  • Yuki***aka88
    May 26, 2026

    信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

  • Stev***aker
    May 20, 2026

    Solid diode for power rectification. Works well in switching circuits.

  • Bran***Lewis
    May 11, 2026

    Compact FPGA with good performance. Suitable for basic signal processing tasks.

  • Oliv***arris
    May 7, 2026

    Reliable I/O expander. Works well in embedded control applications.

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

  • Aman***arris
    Apr 3, 2026

    It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.

  • Mike***nch
    Apr 3, 2026

    Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.

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1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
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Allelco is committed to exceeding customer expectations through customer service excellence, order accuracy, and on-time delivery.
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Electrostatic Discharge Protection and Handling

All electrostatic-sensitive components are handled in accordance with electrostatic discharge control procedures. The products are hermetically sealed in anti-static safe packaging to prevent electrostatic damage. Appropriate labeling is also applied for identification and traceability. This ensures product integrity during storage, handling and transportation.


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SP3220EBCY-L Image

SP3220EBCY-L

MaxLinear, Inc.
32D-SP3220EBCY-L

Want a better price? Add to Cart and Submit RFQ now, we'll contact you immediately.

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