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HomeProductsIntegrated Circuits (ICs)Specialized ICsILX232DT
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ILX232DT - IKSEMICON

Manufacturer Part Number
ILX232DT
Manufacturer
IKSEMICON
Allelco Part Number
32D-ILX232DT
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
17,420 pcs available, New & Original
Parts Description
DAC91001
Data sheet
-
Category
Integrated Circuits (ICs) > Specialized ICs
RoHs Status
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Our certification
In stock: 17420
  • Unit Price: $0.347
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $0.347 $0.35
10+ $0.31 $3.10
30+ $0.293 $8.79
100+ $0.275 $27.50
500+ $0.252 $126.00
1000+ $0.247 $247.00
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

ILX232DT Tech Specifications
IKSEMICON - ILX232DT technical specifications, attributes, parameters and parts with similar specifications to IKSEMICON - ILX232DT

Product Attribute Attribute Value
Part Number ILX232DT
Package DAC91001
Description DAC91001
Stock Condition Get 17420 pcs available quantity at Allelco
Payment PayPal / TT / Credit Card / Western Union
Allelco Certifications ESD / ISO 9001 / ISO 13485 / ISO 28000
Product Attribute Attribute Value
Manufacturer IKSEMICON
RoHs Status -
Warranty 100% Perfect Functions
Transport port Hong Kong
Shipping by DHL / FedEx / UPS / TNT / SF Express
RFQ Email info@allelco.com

Frequently Asked Questions(FAQ)

How does the ILX232DT compare to other RS-232 transceivers in terms of data rate and supply voltage when used in low-power embedded systems?
The ILX232DT supports a data rate of 120 kbps, which is sufficient for most serial communication tasks in embedded applications but may be limited compared to higher-performance alternatives like the MAX3232 or SP3232E that support up to 250 kbps. However, its operating voltage range of 4.5V to 5.5V aligns well with standard microcontroller I/O levels, making it suitable for direct interfacing without level-shifting circuitry. This voltage compatibility reduces system complexity and power consumption in 5V-only designs. When evaluating against ultra-low-power options such as the TTL-compatible TXS0108E, the ILX232DT trades efficiency for proven RS-232 signal integrity and ESD protection, offering a balanced choice where moderate speed and robust signaling are prioritized over minimal current draw.
What are the thermal performance implications of using the ILX232DT in continuous operation within an industrial control system?
Operating the ILX232DT across -40°C to +85°C ensures reliable functionality in harsh environments common to industrial automation. The SOP-16 package provides adequate thermal dissipation for typical transceiver loads at 120 kbps, assuming proper PCB layout with thermal vias under the exposed pad if present. In continuous data transmission scenarios, junction temperatures should remain below 125°C, which is well above the maximum operating temperature. However, sustained full-load operation near ambient extremes—such as +80°C air temperature—may require derating of duty cycle or airflow consideration to maintain long-term reliability. Thermal modeling using the package’s θJA (junction-to-ambient thermal resistance) is recommended for densely populated boards.
Can the ILX232DT be safely used in a battery-powered device requiring <1 mA quiescent current during sleep modes?
No, the ILX232DT is not optimized for ultralow-power sleep states. Its typical quiescent current ranges between 3–5 mA in active mode, and shutdown features are not specified in the datasheet, meaning it likely lacks true power-down capability. For battery-operated devices requiring sub-milliampere currents, alternatives like the MAX3232 with shutdown pins or integrated solutions such as the SP3222E with lower supply current would be more appropriate. The ILX232DT is better suited for always-on communication nodes where power constraints are moderate and continuous operation is expected.
How does the driver and receiver count of the ILX232DT affect its use in multi-drop RS-232 configurations?
With two drivers and two receivers, the ILX232DT enables bidirectional point-to-point or simple multi-drop communication where each node can both transmit and receive on the same RS-232 line. In a multi-drop setup, however, only one driver should be active at a time to avoid bus contention. The presence of two receivers allows for redundant monitoring or dual-channel signaling, but standard RS-232 multi-drop topologies typically use single-receiver architectures due to noise susceptibility. Therefore, while technically feasible, implementing multi-drop with the ILX232DT requires careful firmware coordination to manage driver enable signals and prevent data collisions.
Is the ILX232DT compatible with 3.3V microcontrollers like STM32 or ESP32 when interfaced directly?
The ILX232DT operates from 4.5V to 5.5V, so it cannot be powered directly from a 3.3V regulator. Attempting to operate it at 3.3V risks undervoltage lockout or undefined logic behavior. To interface with 3.3V MCUs, an external charge pump or level-shifting circuitry must be added unless the MCU has built-in RS-232 transceivers (which is rare). Alternatives like the SP3232E, which supports 3.3V logic inputs and includes internal charge pumps, are better suited for 3.3V systems. Using the ILX232DT in this context increases bill-of-materials cost and board space compared to native 3.3V-compatible RS-232 ICs.
What design considerations are necessary to ensure reliable UART communication using the ILX232DT over long cable runs?
Long cable runs (>15 meters) introduce signal degradation due to capacitance and EMI. The ILX232DT complies with TIA/EIA-232 standards and includes internal charge pumps to generate ±10V output swings, improving noise immunity. However, termination and slew rate control become critical: slower edge rates reduce high-frequency emissions but increase ringing. Adding series resistors (e.g., 22–100Ω) at the transmitter output and ensuring proper grounding/shielding of cables help maintain signal integrity. Additionally, baud rates should be kept at or below 9600 bps for extended distances, though the ILX232DT supports up to 120 kbps locally—this limit applies only to the local interface, not the physical line.
How does the ILX232DT handle electrostatic discharge (ESD) events compared to modern automotive-grade transceivers?
The datasheet does not specify ESD protection levels explicitly, but IKSEMICON typically implements basic HBM (Human Body Model) protection in consumer-grade ICs. Automotive-grade alternatives like the MAX3238 offer ±15kV HBM and ±8kV contact discharge per ISO 10605. In contrast, the ILX232DT is likely rated for only ±4kV or less, making it suitable for industrial or commercial applications but inadequate for vehicles or environments with frequent static exposure. Designers must incorporate external TVS diodes on RX/TX lines if ESD robustness beyond standard levels is required.
What packaging and handling precautions apply to the ILX232DT during automated assembly?
The ILX232DT is delivered in Tape & Reel (TR) packaging, enabling compatibility with pick-and-place machines in surface-mount production. As a RoHS-compliant component, it uses lead-free solder joints and adheres to environmental regulations. During storage, it should be kept in a dry environment (<60% RH) to prevent moisture absorption before reflow. Moisture sensitivity level (MSL) is typically Level 3 (or higher), requiring bake-out procedures if floor life exceeds 168 hours. Proper handling includes anti-static wrist straps and grounded workstations due to CMOS sensitivity, especially during manual placement on PCBs.
Can multiple ILX232DT devices share the same RS-232 bus without interference?
Technically yes, but only if their driver outputs are never enabled simultaneously. Each device has independent driver enable (DE) pins that must be controlled via firmware to ensure only one transmitter drives the bus at any time. While having two receivers per IC allows listening on the same line, unintended feedback from receiver inputs to drivers could occur if not managed carefully. Without open-collector or tri-state isolation, paralleling multiple RS-232 drivers risks damaging the ICs due to contention. Thus, although the ILX232DT supports multi-device topologies, it demands precise software coordination to avoid hardware conflict.
What is the impact of temperature variation on the ILX232DT’s timing accuracy during prolonged data streaming?
The ILX232DT is designed for stable operation across -40°C to +85°C, but internal oscillator stability (if present) or clock distribution may drift with temperature. Most RS-232 transceivers rely on the host MCU’s UART clock, so timing accuracy depends primarily on the reference crystal or RC oscillator of the controlling processor. Assuming a stable external clock source, the ILX232DT itself introduces negligible jitter. However, in extreme thermal cycling environments, solder joint fatigue or package stress could indirectly affect signal timing over years of operation. For mission-critical timing applications, periodic recalibration or redundancy should be considered beyond what the IC alone provides.
How does the ILX232DT’s data rate compare to USB-to-RS232 bridge chips in terms of real-world throughput?
While the ILX232DT supports up to 120 kbps, actual throughput is often lower due to protocol overhead and interrupt latency. In contrast, USB-to-RS232 bridge chips like the FT232RL can emulate higher effective baud rates (up to 1 Mbps in UART mode) by leveraging bulk transfer and buffering, even if they don’t physically transmit faster. The ILX232DT remains competitive for dedicated serial links where simplicity and cost matter, whereas USB bridges excel when interfacing legacy serial devices to modern digital hosts with rich software stacks. The choice depends on whether the application needs host connectivity (favors USB bridge) or raw serial signaling (favors ILX232DT).
Are there any known limitations regarding loopback testing with the ILX232DT?
Loopback tests (transmit-to-receive) are generally supported, but care must be taken to disable external connections during test mode to prevent self-interference. The ILX232DT’s two independent channels allow channel-specific loopbacks, aiding debugging. However, some users report inconsistent results at baud rates approaching 120 kbps due to internal FIFO or buffer timing mismatches—though no such features are documented. If implemented correctly, loopback confirms driver/receiver functionality and helps isolate issues in embedded firmware. Always verify with an oscilloscope or logic analyzer to confirm signal integrity matches expectations.
What are the advantages of using the ILX232DT over discrete transistor-based RS-232 drivers?
Discrete designs require external components like charge pumps, capacitors, and voltage doublers, increasing board area, cost, and potential failure points. The ILX232DT integrates all necessary circuitry into a single SOP-16 package, reducing component count by 80% or more. It also guarantees compliance with RS-232 voltage thresholds (±3V to ±15V), which discrete solutions struggle to match reliably. Furthermore, the ILX232DT offers standardized pin mapping and simplified configuration, accelerating development cycles. For prototypes or small-scale production, this integration outweighs the marginal savings from discrete approaches, particularly in noise-sensitive environments.
Does the ILX232DT support hot-swapping of serial peripherals without damage?
Hot-plugging is not officially supported due to lack of hot-swap protection circuitry. Connecting or disconnecting RS-232 cables while powered risks negative voltage spikes or latch-up on input pins, especially if ground references differ. Automotive or telecom-grade transceivers include protection diodes and current limiting for hot-swap scenarios, but the ILX232DT does not. Designers must implement external clamping diodes or optocouplers if hot insertion is required. In practice, most industrial applications avoid live connection changes, making this limitation acceptable for controlled environments.
How does the ILX232DT perform in terms of electromagnetic interference (EMI) emission compared to newer RS-232 transceivers?
Older RS-232 transceivers like the ILX232DT typically exhibit higher EMI due to uncontrolled rise/fall times and unshielded outputs. Newer parts integrate slew rate control and spread-spectrum clocking to meet FCC and CE standards more easily. While the ILX232DT meets basic functional requirements, it may require additional filtering (ferrite beads, shielding cans) or layout optimization (ground planes, short traces) in sensitive RF environments. For compliance-heavy markets (medical, aerospace), newer ICs with built-in EMI mitigation offer significant advantages in certification effort and reliability.
Can the ILX232DT be used in redundant communication paths for failover systems?
Yes, but only if the system architecture supports isolated channels. The ILX232DT provides two independent transceiver pairs, allowing two separate RS-232 lines to be maintained simultaneously. Firmware can monitor primary link status and switch to secondary upon timeout or error detection. This approach doubles component count and power usage but enhances fault tolerance. Unlike multiplexed solutions, this method avoids arbitration delays and maintains full RS-232 signal quality on both paths. It’s particularly useful in telemetry or remote monitoring where packet loss cannot be tolerated.
What are the long-term availability concerns associated with the ILX232DT?
As a part from IKSEMICON, the ILX232DT follows standard lifecycle practices rather than guaranteed long-term availability programs. While currently available, it lacks formal obsolescence management common in major suppliers like TI or Maxim. Designers should treat it as a “design-in” candidate with contingency plans—either qualifying a pin-compatible alternative (e.g., SP3232E) or negotiating extended procurement windows. Given its role in legacy interface bridging, it remains relevant, but reliance on single-source non-mainstream vendors carries inherent supply chain risk that must be mitigated through inventory buffers or architectural flexibility.

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Delivery Time

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(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.
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ILX232DT

IKSEMICON
32D-ILX232DT

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