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Home > Products > Integrated Circuits (ICs) > Specialized ICs > SP208ECT
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SP208ECT

Manufacturer Part Number:
SP208ECT
Manufacturer / Brand
SIPEX
Part of Description:
SP208ECT SIPEX SOP24
Datasheets:
Lead Free Status / RoHS Status:
RoHS Compliant
Stock Condition:
New original, 4300 pcs Stock Available.
ECAD Model:
Ship From:
Hong Kong
Shipment Way:
DHL/Fedex/TNT/UPS

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Part Number SP208ECT
Manufacturer / Brand SIPEX
Stock Quantity 4300 pcs Stock
Category Integrated Circuits (ICs) > Specialized ICs
Description SP208ECT SIPEX SOP24
Lead Free Status / RoHS Status: RoHS Compliant
RFQ SP208ECT Datasheets SP208ECT Details PDF
SP208ECT Details PDF for FR.pdf
SP208ECT Details PDF for KR.pdf
SP208ECT Details PDF for IT.pdf
SP208ECT Details PDF for ES.pdf
SP208ECT Details PDF for DE.pdf
Package SOP24
Condition New Original Stock
Warranty 100% Perfect Functions
Lead Time 2-3days after payment.
Payment Credit Card / PayPal / Telegraphic Transfer (T/T) / Western Union
Shipping by DHL / Fedex / UPS / TNT
Port HongKong
RFQ Email Info@IC-Components.com

Packaging & ESD

Industry-standard static shielding packaging is used for electronic components.Anti-static, light-transparent materials allow easy identification of ICs and PCB assemblies.
The packaging structure provides electrostatic protection based on Faraday cage principles.This helps protect sensitive components from static discharge during handling and transportation.


All products are packed in ESD-safe anti-static packaging. Outer packaging labels include part number, brand, and quantity for clear identification. Goods are inspected prior to shipment to ensure proper condition and authenticity.

ESD protection is maintained throughout packing, handling, and global transportation. Secure packaging provides reliable sealing and resistance during transit. Additional cushioning materials are applied when required to protect sensitive components.

QC(Part Testing by IC Components)Quality Warranty

We can offer worldwide express delivery service, such as DHLor FedEx or TNT or UPS or other forwarder for shipment.

Global Shipment by DHL/FedEx/TNT/UPS

Shipping Fees reference DHL/FedEx
1). You can offer your express delivery account for shipment, ifyou haven’t any express account for shipment, we can offer our account inadvance.
2). Use our account for shipment, Shipment charges(Reference DHL/FedEx, Different Countries has different price.)
Shipment charges： (Reference DHL and FedEX)
Weight(KG): 0.00kg-1.00kg Price(USD$) : USD$60.00
Weight(KG): 1.00kg-2.00kg Price(USD$) : USD$80.00
* The price of cost is reference with DHL/FedEx. The detail charges, please contact us. Different country the express charges are different.



We accept the payment terms: Telegraphic Transfer(T/T), Credit Card, PayPal and Western Union.

PayPal:

PayPal Bank Information:
Company Name : IC COMPONENTS LTD
Paypal ID: Info@IC-Components.com

BANK TRANSFAR (Telegraphic Transfer)

Payment For Telegraphic Transfers:
Company Name : IC COMPONENTS LTD Beneficiary Account Number : 549-100669-701
Beneficiary Bank name : Bank of Communications (Hong Kong) Ltd Beneficiary Bank Code : 382 (for local payment)
Beneficiary Bank SWIFT : COMMHKHK
Beneficiary Bank Address : Tsuen Wan Market Street Branch 53 Market Street, Tsuen Wan N.T., Hong Kong

Any inquires or questions, please kindly contact us Email: Info@IC-Components.com


Frequently Asked Questions

What are the key design constraints when integrating the SP208ECT into a 3.3V system with mixed-voltage peripherals?
The SP208ECT operates with a supply voltage range of 3.0V to 5.5V, making it compatible with 3.3V logic, but its TTL-level inputs require careful attention when interfacing with 5V peripherals. Inputs are not 5V-tolerant, so level shifting or series current-limiting resistors are necessary to prevent damage. Additionally, the output drivers are push-pull and cannot be used in open-drain configurations without external pull-ups, which must be accounted for in bus-sharing applications.
Can the SP208ECT be used in industrial environments with extended temperature cycling, and what derating factors should be considered?
The SP208ECT is rated for operation from -40°C to +85°C, suitable for industrial applications, but thermal derating is required above 70°C due to increased leakage currents and reduced noise margin. At 85°C, maximum data rates should be reduced by approximately 15–20% compared to room temperature operation to maintain signal integrity, especially in long-cable or high-capacitance load scenarios.
Is the SP208ECT a drop-in replacement for the MAX208E or MAX208EC variants, and what design changes might be needed?
The SP208ECT is functionally compatible with Maxim’s MAX208E and MAX208EC in terms of pinout and basic RS-232 functionality, but differences in charge pump architecture result in slightly higher quiescent current and slower capacitor charging during power-up. Designers should verify startup timing in low-power systems and ensure decoupling capacitors (typically 0.1µF) are placed within 5mm of the V+ and V- pins to avoid oscillation.
What are the risks of using the SP208ECT in battery-powered applications, and how can power efficiency be optimized?
The SP208ECT lacks a shutdown mode, drawing continuous supply current even when idle, which makes it suboptimal for low-power or battery-operated systems. For such applications, consider alternatives like the MAX3221 or SP3222E with integrated shutdown. If the SP208ECT must be used, minimize power by disabling unused channels via software control of the driver inputs and reducing baud rate to the lowest acceptable level.
How does the SP208ECT handle ESD events on RS-232 lines in harsh environments, and what external protection is recommended?
The SP208ECT includes ±15kV ESD protection on receiver inputs per IEC 61000-4-2, but transmitter outputs are less robust. In high-noise or outdoor environments, add TVS diodes (e.g., SMAJ15A) on all RS-232 lines and ferrite beads on the supply rail to suppress conducted transients. Grounding the shield through a 1nF capacitor to chassis ground further improves immunity.
Can the SP208ECT support full-duplex communication over long cables, and what are the practical distance limits?
The SP208ECT supports full-duplex RS-232 communication, but maximum cable length is limited by capacitance and baud rate. At 115.2 kbps, reliable operation is typically limited to 15–20 meters using standard shielded twisted-pair cable. For longer distances, reduce baud rate to 19.2 kbps or below and ensure proper termination to minimize reflections, though RS-232 does not require impedance matching like RS-485.
What configuration or layout considerations are critical when placing the SP208ECT near high-speed digital circuits?
The SP208ECT’s internal charge pump generates switching noise at approximately 200–300 kHz, which can couple into adjacent high-speed digital lines. Maintain a 10mm clearance from sensitive traces, use a solid ground plane beneath the device, and place the charge pump capacitors (C1–C4) as close as possible to the IC. Avoid routing clock or data lines parallel to the V+ or V- pins to prevent crosstalk.
Are there known reliability issues with the SP208ECT in high-humidity or condensing environments?
The SP208ECT in SOP package is not hermetically sealed and may experience corrosion or leakage in condensing environments. In high-humidity applications (>85% RH), conformal coating (e.g., acrylic or silicone-based) is recommended. Additionally, ensure PCB layout avoids moisture-trapping geometries near the package, and consider elevated temperature baking of PCBs prior to assembly if moisture exposure is anticipated.
How does the SP208ECT perform under sustained short-circuit conditions on the RS-232 output lines?
The SP208ECT includes short-circuit protection on its driver outputs, limiting current to approximately 30–60 mA during a fault. However, prolonged short circuits can cause thermal stress, especially at elevated ambient temperatures. For continuous fault scenarios, monitor junction temperature and consider adding current-limiting resistors (e.g., 33Ω in series) to reduce power dissipation and extend device lifespan.
What alternatives exist if the SP208ECT is discontinued, and how do they compare in terms of footprint and performance?
If the SP208ECT becomes unavailable, the MAX3227E (Maxim) or ADM3202 (Analog Devices) are viable alternatives with similar SOP-20 footprints and enhanced features such as auto-shutdown and lower power. However, the MAX3227E uses a smaller 0.1µF capacitor configuration, which may require PCB layout adjustments. The ADM3202 offers higher ESD protection (±15kV on all pins) but has a different pinout, necessitating a board revision.

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