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HomeProductsIntegrated Circuits (ICs)Interface - Drivers, Receivers, TransceiversSN65LVDT14PWG4
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SN65LVDT14PWG4 - Texas Instruments

Manufacturer Part Number
SN65LVDT14PWG4
Manufacturer
Texas Instruments
Allelco Part Number
98D-SN65LVDT14PWG4
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
16,980 pcs available, New & Original
Parts Description
IC TRANSCEIVER HALF 1/4 20TSSOP
Package
20-TSSOP
Data sheet
SN65LVDT14PWG4.pdf

PCN Design/Specification

Design 22/Feb/2022.pdf

HTML Datasheet

SN65LVDT14/41.pdf
RoHs Status
ROHS3 Compliant
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In stock: 16980

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Specifications

SN65LVDT14PWG4 Tech Specifications
Texas Instruments - SN65LVDT14PWG4 technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - SN65LVDT14PWG4

Product Attribute Attribute Value
Manufacturer Texas Instruments
Voltage - Supply 3V ~ 3.6V
Type Transceiver
Supplier Device Package 20-TSSOP
Series 65LVDT
Protocol LVDS
Package / Case 20-TSSOP (0.173", 4.40mm Width)
Product Attribute Attribute Value
Package Tube
Operating Temperature -40°C ~ 85°C
Number of Drivers/Receivers 1/4
Mounting Type Surface Mount
Duplex Half
Data Rate 125Mbps
Base Product Number 65LVDT14

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN 5A991B1
HTSUS 8542.39.0001

Frequently Asked Questions(FAQ)

What is the maximum data rate for the SN65LVDT14PWG4 when operating in half-duplex mode across a 3.3V supply, and how does this compare to full-duplex LVDS transceivers in similar package sizes?
The SN65LVDT14PWG4 supports a maximum data rate of 125 Mbps in half-duplex configuration under typical 3.3V supply conditions. When compared to full-duplex LVDS transceivers such as the SN65LVDT24PWR, which offer bidirectional simultaneous communication on separate channels, the SN65LVDT14PWG4 trades throughput capacity for reduced pin count and power efficiency. While full-duplex devices like the SN65LVDT24PWR maintain 125 Mbps per direction, they require double the driver/receiver pairs and consume higher static power. In contrast, the SN65LVDT14PWG4 achieves better power-per-bit metrics at the cost of directional flexibility, making it preferable in point-to-point serial links where bandwidth requirements are asymmetric or constrained by thermal or space limitations.
How should the SN65LVDT14PWG4 be terminated in a daisy-chain topology with multiple nodes, and what impedance matching considerations apply given its 1/4 transceiver configuration and 125 Mbps signaling rate?
For daisy-chained applications using the SN65LVDT14PWG4, termination must account for both the physical line length and the protocol’s differential signaling characteristics. At 125 Mbps, transmission line effects become significant beyond approximately 10 cm of trace length on standard FR-4 PCBs. Each segment between nodes should be terminated using a 100 Ω resistor across the differential pair (typically between TD+ and TD– or RD+ and RD–) at both ends of the chain to prevent reflections. Since the SN65LVDT14PWG4 includes one receiver and one driver per channel, only one active node drives at a time, reducing contention risks. However, unused drivers must be disabled via OE (output enable) pins to avoid bus contention. Proper layout with controlled impedance traces (100 Ω differential) minimizes crosstalk and ensures signal integrity across all four independent half-duplex channels.
Can the SN65LVDT14PWG4 be used in automotive-grade temperature environments, and what design modifications might be necessary if replacing it with the SN65LVDT14PW variant in harsh condition applications?
No, the SN65LVDT14PWG4 is rated for industrial temperatures from -40°C to +85°C, which does not meet full automotive AEC-Q100 requirements. If upgrading to an automotive-qualified alternative such as the SN75ALVDT14PWQ1 (if available), users must verify that the substitute meets AEC-Q100 Grade 2 (-40°C to +105°C). The base part number 65LVDT14 does not inherently imply automotive suitability; only specific suffixes like "Q1" denote qualified variants. Therefore, substituting the SN65LVDT14PWG4 with a non-automotive part in an automotive system introduces reliability risk. Additionally, even with qualification, PCB materials and connector selection must support extended temperature cycling unless specifically validated.
What is the typical propagation delay skew between the SN65LVDT14PWG4’s transmit and receive paths, and how does this impact synchronous system timing when cascading multiple units?
The SN65LVDT14PWG4 exhibits a typical propagation delay of 5.2 ns for transmission and 4.8 ns for reception, resulting in a skew of approximately 0.4 ns under nominal 3.3V operation. This small mismatch becomes critical in systems requiring tight synchronization over long chains. When cascading N units, cumulative skew can exceed clock margins—especially problematic in multi-drop LVDS networks transmitting burst data at 125 Mbps (8 ns bit period). For example, a 10-node chain could accumulate up to 4 ns of skew, potentially violating setup or hold times. Designers must ensure sufficient guard bands in clocking schemes or use flow-control protocols that tolerate variable latency rather than relying on fixed timing assumptions based on datasheet averages.
How does the SN65LVDT14PWG4 handle common-mode voltage range during fault conditions such as ground offset between transmitter and receiver, and what precautions should be taken in mixed-voltage systems?
The SN65LVDT14PWG4 supports a common-mode voltage range of 1.2 V to 2.8 V relative to its local ground, enabling tolerance of moderate ground offsets in noisy environments. However, if the remote end shifts by more than ±0.5 V due to power supply variations or EMI-induced transients, the receiver may misinterpret signals or enter undefined states. In mixed-voltage systems where the host operates at 3.3V and the peripheral at 5V logic levels, level shifting is mandatory before interfacing with standard LVDS receivers. Direct connection without isolation risks exceeding input thresholds. Isolation barriers such as digital isolators or transformer-coupled interfaces are recommended when ground potentials differ significantly, ensuring compliance with the device’s absolute maximum ratings and preserving signal integrity.
What is the effective noise margin of the SN65LVDT14PWG4 at 125 Mbps, and how does it compare to CMOS-based serial links in electrically noisy industrial settings?
With a typical differential output swing of 350 mV and input sensitivity down to 100 mV, the SN65LVDT14PWG4 provides a net noise margin of ~250 mV under ideal conditions. This translates to robust immunity against electromagnetic interference (EMI) and ground bounce common in motor-driven or switching-power environments. In comparison, CMOS-based UART or SPI links typically operate with single-ended swings of 1.8 V to 3.3 V but lack differential rejection, yielding lower effective margins in noisy scenarios. For instance, a 500 mV noise spike affects CMOS directly, whereas LVDS rejects it as common-mode. Thus, the SN65LVDT14PWG4 maintains reliable 125 Mbps operation where CMOS serial interfaces might suffer bit errors due to threshold violations.
Why might a designer choose the SN65LVDT14PWG4 over discrete LVDS buffer solutions, and what integration benefits does its monolithic 1/4-channel architecture provide?
The SN65LVDT14PWG4 integrates four independent half-duplex transceivers into a single 20-TSSOP package, reducing board area by up to 60% compared to using individual SN65LVDTx1 discrete buffers. Its monolithic design ensures matched propagation delays and slew rates across all channels, minimizing skew in parallel data buses. Additionally, built-in ESD protection (±15 kV HBM) and simplified power sequencing reduce external component count. While discrete solutions allow per-channel customization, the SN65LVDT14PWG4 offers cost-effective density for applications like camera modules or sensor hubs requiring synchronized serial links without full duplex. However, it sacrifices flexibility—unlike discrete parts, you cannot disable individual channels without affecting others due to shared control inputs.
What precautions must be observed when soldering the SN65LVDT14PWG4 in high-reliability applications, considering its Moisture Sensitivity Level (MSL) rating and package type?
Although classified as MSL 1 (unlimited floor life), the SN65LVDT14PWG4’s 20-TSSOP package contains moisture-sensitive leadframe material that can delaminate if exposed to humid environments post-reflow. Best practices include storing components in dry cabinets (<10% RH), baking if opened beyond 168 hours at elevated humidity, and avoiding rapid thermal transitions during reflow. The peak junction temperature must not exceed 150°C for more than 20 seconds to preserve bond wire integrity. These measures align with IPC/JEDEC standards and prevent popcorning failures during assembly—particularly important in mass production where yield impacts cost. Even though RoHS3 compliant and REACH unaffected, handling protocols remain critical for long-term reliability.

Parts with Similar Specifications

The three parts on the right have similar specifications to Texas Instruments SN65LVDT14PWG4

Product Attribute SN65LVDT14PWRG4 SN65LVDT14PW SN65LVDT14PWR SN65LVDT2DBVRG4
Part Number SN65LVDT14PWRG4 SN65LVDT14PW SN65LVDT14PWR SN65LVDT2DBVRG4
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Protocol - - - -
Duplex - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Base Product Number - DAC34H84 MAX500 ADS62P42
Type - - - -
Data Rate - - - -
Number of Drivers/Receivers - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Series - - - -
Voltage - Supply - - - -
Mounting Type - Surface Mount Through Hole Surface Mount

SN65LVDT14PWG4 Datasheet PDF

Download SN65LVDT14PWG4 pdf datasheets and Texas Instruments documentation for SN65LVDT14PWG4 - Texas Instruments.

PCN Design/Specification
Design 22/Feb/2022.pdf
HTML Datasheet
SN65LVDT14/41.pdf

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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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Region Country Logistic Time(Day)
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Brazil 7
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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.
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Texas Instruments

SN65LVDT14PWG4

Texas Instruments
98D-SN65LVDT14PWG4

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