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HomeProductsIntegrated Circuits (ICs)Interface - Drivers, Receivers, TransceiversSP232ACP-L
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SP232ACP-L - MaxLinear, Inc.

Manufacturer Part Number
SP232ACP-L
Manufacturer
Exar (MaxLinear)
Allelco Part Number
32D-SP232ACP-L
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
15,560 pcs available, New & Original
Parts Description
IC TRANSCEIVER FULL 2/2 16DIP
Package
16-PDIP
Data sheet
SP232ACP-L.pdf
RoHs Status
 
Our certification
In stock: 15560

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Specifications

SP232ACP-L Tech Specifications
MaxLinear, Inc. - SP232ACP-L technical specifications, attributes, parameters and parts with similar specifications to MaxLinear, Inc. - SP232ACP-L

Product Attribute Attribute Value
Manufacturer Exar (MaxLinear)
Voltage - Supply 4.5V ~ 5.5V
Type Transceiver
Supplier Device Package 16-PDIP
Series -
Receiver Hysteresis 500 mV
Protocol RS232
Product Attribute Attribute Value
Package / Case 16-DIP (0.300", 7.62mm)
Package Tube
Operating Temperature 0°C ~ 70°C
Number of Drivers/Receivers 2/2
Mounting Type Through Hole
Duplex Full
Data Rate 240kbps

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
Moisture Sensitivity Level (MSL) 1 (Unlimited)
ECCN EAR99
HTSUS 8542.39.0001

Parts Introduction

SP232ACP-L Image
SP232ACP-L (1)

Manufacturer Part Number

SP232ACP-L

Manufacturer

maxlinear

Introduction

The SP232ACP-L is a dual driver/dual receiver RS232 transceiver. It is designed to be compatible with the EIA/TIA-232-E and ITU v.28/v.24 standards. The device can operate at data rates up to 240kbps and is suitable for a wide range of serial communication applications.

Product Features and Performance

Dual driver/dual receiver RS232 transceiver

Designed to be compatible with EIA/TIA-232-E and ITU v.28/v.24 standards

Data rates up to 240kbps

500mV receiver hysteresis

5V to 5.5V supply voltage range

0°C to 70°C operating temperature range

Product Advantages

Efficient and reliable serial data communication

Compact 16-DIP package design

Suitable for a wide range of applications

Key Reasons to Choose This Product

High-performance RS232 transceiver with excellent data transmission capabilities

Compatibility with industry-standard protocols and interfaces

Wide operating voltage and temperature range for versatile usage

Compact and space-saving package design

Quality and Safety Features

Robust design and construction for reliable operation

Compliance with relevant industry standards and regulations

Compatibility

The SP232ACP-L is compatible with EIA/TIA-232-E and ITU v.28/v.24 serial communication standards.

Application Areas

Industrial automation and control systems

Telecommunications equipment

Medical devices

Embedded systems

General serial communication applications

Product Lifecycle

The SP232ACP-L is an obsolete product. Customers should contact our website's sales team for information on alternative or equivalent models that may be available.

Frequently Asked Questions(FAQ)

How does the SP232ACP-L handle voltage swing limitations in RS232 communication, and what design considerations are necessary to maintain signal integrity across the specified supply range of 4.5V to 5.5V?
The SP232ACP-L generates RS232-level voltage swings internally using charge-pump circuitry, which enables full compliance with RS232 signaling standards despite its narrow 4.5V–5.5V supply range. This internal generation allows it to produce ±3V to ±15V output levels required for proper RS232 communication without requiring external high-voltage supplies. However, designers must ensure that capacitive loads on the transmitter outputs do not exceed the device’s drive capability, as higher capacitance reduces data rate and increases power consumption. A typical 0.1µF bypass capacitor per VCC pin and careful PCB layout to minimize parasitic inductance are recommended to preserve waveform fidelity.
What is the significance of the 500 mV receiver hysteresis in the SP232ACP-L, and how does it improve noise immunity in electrically noisy environments compared to transceivers with lower hysteresis values?
The 500 mV receiver hysteresis in the SP232ACP-L provides a built-in tolerance threshold that prevents rapid toggling of the receiver output due to minor noise fluctuations near the logic threshold. In environments with ground shifts or electromagnetic interference, this hysteresis ensures clean digital transitions by requiring a larger input deviation to change state. Compared to transceivers with 200–300 mV hysteresis, the SP232ACP-L offers superior noise margin, making it more reliable in industrial or automotive applications where RS232 lines may be exposed to voltage transients or long cable runs.
Can the SP232ACP-L operate reliably at its maximum rated data rate of 240 kbps over standard RS232 cable lengths, and what factors limit performance when driving longer interconnects?
At 240 kbps, the SP232ACP-L can typically support reliable communication over 15–30 feet of unshielded twisted-pair RS232 cable, depending on cable quality and termination. However, performance degrades with increased capacitance and inductance in long cables due to reduced slew rates and higher RC time constants. Key limiting factors include total load capacitance (ideally kept below 2500 pF), improper grounding, and lack of line drivers/receivers at both ends. To extend reach beyond 50 feet, signal buffering or use of lower baud rates may be necessary.
Why might a designer choose the SP232ACP-L over alternatives like the MAX232N when implementing a full-duplex RS232 interface with through-hole mounting?
While both the SP232ACP-L and MAX232N provide dual transmitter/receiver functionality in a 16-DIP package, the SP232ACP-L features improved receiver hysteresis (500 mV vs. typically 200–300 mV) and operates across an identical 4.5V–5.5V supply range. For legacy system upgrades requiring through-hole compatibility and enhanced noise immunity, the SP232ACP-L offers better signal stability in marginal electrical environments. Additionally, its EAR99 classification simplifies export compliance compared to some international variants.
What thermal and power implications should engineers consider when integrating the SP232ACP-L into a compact embedded design operating near the upper end of its 0°C to 70°C temperature range?
The SP232ACP-L consumes approximately 1.5 mA per active channel under nominal conditions, leading to a total quiescent current of around 3–4 mA for both transmit and receive paths. At elevated ambient temperatures approaching 70°C, internal leakage currents increase slightly, potentially affecting low-power designs. While the device itself dissipates minimal heat (<50 mW), system designers must ensure adequate airflow or thermal relief if placed near other heat-sensitive components. No heatsinking is required for typical office or industrial environments.
How does the SP232ACP-L compare to the HIN202ECPZ in terms of driver output current and susceptibility to ringing during fast transitions?
The SP232ACP-L typically delivers ±8 mA of driver output current, whereas the HIN202ECPZ provides ±12 mA, giving the latter greater drive strength for long cables or capacitive loads. However, the higher current capability of the HIN202ECPZ can exacerbate ringing and overshoot unless carefully matched with series termination resistors. In contrast, the SP232ACP-L’s moderate drive strength reduces electromagnetic emissions and simplifies impedance matching, making it preferable in space-constrained or EMI-sensitive applications despite its lower peak current.
Is the SP232ACP-L suitable for use in battery-powered systems with intermittent operation, and what precautions apply to enabling/disabling its charge pump during sleep cycles?
Yes, the SP232ACP-L can support low-duty-cycle operation typical of battery-powered devices, but its charge pump requires several milliseconds to stabilize after power-up. Abruptly disabling VCC during sleep states can leave the device in an undefined state, risking latch-up or incomplete shutdown. Best practice involves keeping VCC stable or allowing sufficient wake-up time (>5 ms) before initiating serial communication. Alternatively, using enable pins (if available in future variants) or switching to a low-power mode with automatic charge-pump disable would enhance efficiency.
What role does the Moisture Sensitivity Level (MSL) rating of 1 play in the handling and storage lifecycle of the SP232ACP-L, particularly in high-volume manufacturing environments?
With an MSL rating of 1 (unlimited shelf life), the SP232ACP-L can be stored indefinitely without baking prior to reflow, simplifying inventory management and reducing lead times in high-volume production. This makes it ideal for contract manufacturers who require minimal pre-processing steps. However, even with MSL 1, operators should avoid exposing unpackaged parts to humid environments exceeding 60% RH for prolonged periods to prevent gradual moisture ingress that could cause popcorning during soldering—standard precautions still apply during handling.

Parts with Similar Specifications

The three parts on the right have similar specifications to MaxLinear, Inc. SP232ACP-L

Product Attribute SP232ACT-L/TR SP232ACT-L SP232ACN-L SP232ACN-L/TR
Part Number SP232ACT-L/TR SP232ACT-L SP232ACN-L SP232ACN-L/TR
Manufacturer MaxLinear, Inc. MaxLinear, Inc. MaxLinear, Inc. MaxLinear, Inc.
Data Rate - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Series - - - -
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Duplex - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Voltage - Supply - - - -
Type - - - -
Receiver Hysteresis - - - -
Protocol - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Number of Drivers/Receivers - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)

SP232ACP-L Datasheet PDF

Download SP232ACP-L pdf datasheets and MaxLinear, Inc. documentation for SP232ACP-L - MaxLinear, Inc..

Datasheets
SP232A.pdf
PCN Assembly/Origin
Alternate Assembly Site 27/Jan/2014.pdf
PCN Obsolescence/ EOL
Mult Devices 11/Jul/2017.pdf
PCN Other
Multiple Changes 26/Jul/2013.pdf

Customer Reviews

Evaluation: 10 Articles

  • 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.

  • Daic***K.
    Mar 23, 2026

    Very good. No issue after long time testing.

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Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

  1. Use your express account for shipment if you have one.
  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.
  • QC (Quality Warranty)
  • Payment Support
  • Packaging
  • Certifications & Memberships

QC (Quality Warranty)

Allelco is committed to exceeding customer expectations through customer service excellence, order accuracy, and on-time delivery.
This is achieved through our commitment to the continual improvement of our processes, services, and products.


Strict quality inspection builds a solid foundation for electronic component quality.
  1. Visual inspection
  2. Performance testing and reliability verification
  3. Standardized full-process testing
  4. Precise control of every parameter
We eliminate defective components and ensure the stable operation of electronic devices through professional quality standards.

Payment Support

The payment method can be chosen from the methods shown below: Wire Transfer (T/T, Bank Transfer), Western Union, Credit card, PayPal.
  • HKBea
  • Paypal
  • MasterCard
  • Western-Union
  • VISA
Stable Delivery, Sincere Partnership — Your Faithful Supply Chain Partner
  • Efficient Supply Management
  • Cost-Saving Procurement
  • Fast Sourcing & Delivery
Contact us if you have any questions.

Packaging

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.


ESD

Certifications & Memberships

Third-party certified, strict quality control. Our certification
  • ISO 9001: 2015
  • ISO 13485: 2016
  • ISO 14001: 2015
  • ISO 28000: 2007
  • ISO 45001: 2018
  • GB/T 27922-2011
  • SMTA
  • IPC
  • ESD
  • PSMA
SP232ACP-L Image

SP232ACP-L

MaxLinear, Inc.
32D-SP232ACP-L

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