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THS789PFD

THS789PFD - Quad-Channel 200MHz Time Measurement IC | TI

Texas Instruments THS789PFD is a quad-channel time measurement unit (TMU) with a 200 MHz measurement clock, one output, and a 100-pin HTQFP package measuring 14 mm by 14 mm. The device is listed for commercial-grade operation from 0 °C to 70 °C and is supplied in a tray. Its verified product identity also includes an exposed thermal pad and surface-mount construction. A time measurement unit is a specialized clock-and-timing semiconductor that measures elapsed time by comparing reference events. A multi-channel TMU extends this function across several independent measurement paths, making it useful when a system must acquire timing relationships, delays, pulse widths, or event intervals without implementing each measurement function as discrete logic. The THS789 therefore belongs to the clock-and-timing IC category and the broader application-specific timing semiconductor hierarchy. The principal verified specifications are four measurement channels, a 200 MHz timing reference, and one output. The 200 MHz reference corresponds to a 5 ns reference period, while the quad-channel architecture permits parallel timing observations. The 100-pin HTQFP package provides numerous external connections for timing inputs, control, power, and outputs, while the exposed pad supports heat transfer from the device to the PCB. The THS789PFD is specifically identified as a Time Measurement IC and is marketed by DigiKey under the Application Specific Clock/Timing classification. This distinguishes it from conventional general-purpose timers by emphasizing precision event-interval measurement across four channels. The exact input voltage range, minimum measurable interval, timing accuracy, propagation delay, output characteristics, and power specifications are not included in the supplied verified excerpts and should be taken from the complete manufacturer datasheet before design release. Typical engineering uses include industrial automation equipment, communications timing analysis, instrumentation, automated test systems, and embedded systems that compare multiple event arrivals. The 100-pin package and exposed pad make careful PCB layout, grounding, and thermal management important. In multi-channel systems, signal integrity at the timing inputs can materially affect measurement consistency, so controlled impedance, short return paths, and clean reference distribution should be prioritized. A principal design trade-off is package size versus channel density: the 14 mm by 14 mm HTQFP offers extensive connectivity for four timing channels but requires more PCB area than a compact mixed-signal package. Engineers should also confirm the complete electrical limits and interface timing before substituting another device or extending the operating temperature beyond the verified 0 °C to 70 °C range. This product record combines verified manufacturer and distributor identity, package and ordering information, commercial availability, and explicit engineering guidance for evaluating the THS789PFD. It also distinguishes confirmed facts from parameters that still require review in the full Texas Instruments datasheet, supporting faster procurement and design planning without treating unverified specifications as guaranteed.

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THVD1400DR

THVD1400DR - 3.3-5V RS-485 Transceiver, 500Kbps, 8-SOIC | Texas Instruments

The Texas Instruments THVD1400DR is a 3.3-V to 5-V RS-485/RS-422 half-duplex transceiver in an 8-pin SOIC package, supporting data rates up to 500 kbps with integrated ±12-kV IEC ESD (HBM) protection on the bus pins. The part contains one driver and one receiver on a single die, operates from a 3.0 V to 5.5 V supply, and meets or exceeds the requirements of the TIA/EIA-485A standard for robust industrial communication. The wide common-mode voltage range and low input leakage on bus pins make the device suitable for multi-point applications over long cable runs. What is an RS-485 transceiver? An RS-485 transceiver is a type of differential line driver/receiver interface IC that converts a single-ended TTL/CMOS logic signal into a balanced differential signal on a twisted-pair bus, and vice versa. RS-485 belongs to the broader TIA/EIA-485 family of serial interface standards and is widely used in industrial automation, building control, and long-distance communication. The transceiver sits between a UART/MCU and the physical bus, providing the voltage translation, drive strength, and ESD protection required to survive harsh electrical environments. Key features include 1/8 unit load support (allowing up to 256 nodes on the bus), ±12-kV IEC 61000-4-2 contact discharge ESD protection on bus pins, hot-plug support with glitchless power-up, and an extended industrial operating temperature range of -40 °C to +125 °C. The THVD1400DR also integrates thermal shutdown, current limiting on driver outputs, and receiver fail-safe for open, shorted, or idle bus conditions, eliminating the need for external biasing resistors on many designs. The architecture combines a precision differential line driver with a high-CMRR receiver and on-chip charge-pump-generated drive rails. The wide bus common-mode range of -7 V to +12 V lets the device tolerate ground potential differences between nodes across long cable runs. The 8-pin SOIC footprint provides drop-in compatibility with industry-standard pinout, simplifying PCB reuse and second-sourcing. Typical applications include industrial fieldbus networks (Modbus, Profibus-compatible), HVAC building automation, solar inverter daisy-chains, motor drive control links, smart-grid metering, and any point-to-point or multi-drop RS-485 link requiring IEC-grade ESD robustness. The low quiescent current also makes it suitable for battery-backed or always-on telemetry nodes. When designing with this device, place 100 nF decoupling close to VCC and add a 1 µF bulk capacitor when long supply traces are present. For bus termination, use a 120 Ω resistor across the differential pair at the two end nodes only; intermediate nodes should not be terminated to preserve signal integrity on multi-drop buses.

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THVD1450

THVD1450 - 50 Mbps RS-485 Transceiver, ±18 kV ESD | Texas Instruments

The Texas Instruments THVD1450 is a 3.3-V to 5-V, half-duplex RS-485/RS-422 transceiver with ±18-kV IEC ESD protection, delivering data rates up to 50 Mbps in an 8-pin SOIC (D) package. It belongs to the THVD14xx family of noise-immune transceivers engineered for rugged industrial environments and supports a wide 3 V to 5.5 V supply range with a low-current standby mode for power-constrained designs. An RS-485 transceiver is a physical-layer device that converts a single-ended UART signal into a balanced differential signal for transmission over twisted-pair cabling, enabling robust communication across long distances and electrically noisy industrial settings. The RS-485 standard (TIA/EIA-485) defines a differential bus topology that allows up to 32 unit loads (256 with modern transceivers) on a single twisted pair, with common-mode voltage range of −7 V to +12 V and cable lengths beyond 1200 m at reduced speeds. Transceivers sit at the bottom of the OSI physical layer (PHY) and above the UART/SCI controller, framing all fieldbus, PROFIBUS, Modbus, BACnet, and DMX512 wiring as the dominant industrial multi-drop PHY in use today. Key features of the THVD1450 include ±18-kV IEC 61000-4-2 air-discharge ESD on bus pins (eliminating external TVS arrays), ±8-kV IEC contact discharge, integrated bus fail-safe biasing (open, short, idle), 1.5 V typical differential output swing into 54 Ω, hot-plug support with glitch-free power-up, and an operating junction temperature range of −40 °C to +125 °C. The 8-SOIC package provides a compact 3.9 mm × 4.9 mm footprint, suitable for point-to-point and multi-drop fieldbus links. Architecturally, the THVD1450 integrates a differential line driver, a wide-common-mode differential receiver, internal fail-safe bias resistors, and an IEC-ESD cell at the bus pins. The wide 3 V to 5.5 V supply range allows direct connection to either 3.3-V MCU rails or legacy 5-V logic, simplifying BOM in mixed-voltage industrial nodes. Typical applications include factory-automation fieldbus nodes, building-automation BACnet wiring, solar inverter daisy-chain comms, motor-drive encoder feedback, smart-meter data concentrators, and any noise-immune multi-drop RS-485 link where bus pins face direct human/operator contact and require maximum ESD survivability. The 50-Mbps speed grade also supports high-rate motion-control and vision-system links over short cable. When designing with this part, place 100 nF decoupling within 2 mm of VCC and add a 120 Ω termination resistor at each cable end only. Avoid stubs longer than one-tenth of the driver rise time to prevent reflections at 50 Mbps, and never tie the bus pins to a stub that exceeds the unit-load budget of 32 (or 256 with low-IU parts). This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, including same-family THVD14xx options, cross-brand pin-compatible RS-485 transceivers, and IEC-ESD design-in guidance for rugged industrial nodes.

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THVD1450D

THVD1450D - 3.3-5V RS-485 Transceiver ±18kV ESD | TI

The Texas Instruments THVD1450D is a 3.3-V to 5-V RS-485/RS-422 transceiver housed in an 8-pin SOIC package, featuring integrated IEC 61000-4-2 ±18-kV ESD protection on the bus pins. The device integrates one driver and one receiver (1/1 configuration) in half-duplex mode and supports data rates up to 50 Mbps over a wide 3.0V-5.5V supply range. An RS-485/RS-422 transceiver is a physical-layer interface IC that translates logic-level UART or SPI signals from a microcontroller into the differential voltage signaling required by the RS-485 and RS-422 standards. Differential signaling allows data transmission over long cable runs (up to 1200 m per the RS-485 standard) in electrically noisy industrial environments, because common-mode noise is rejected by the receiver's differential comparator. Within the broader system hierarchy, the transceiver sits between the controller's UART/SPI logic and the physical twisted-pair bus, sitting alongside other power-management and interface ICs on the bus node's BOM. Key features include ±18-kV HBM-equivalent IEC 61000-4-2 ESD protection on the A and B bus pins, ±4-kV IEC 61000-4-4 EFT immunity, a 30-mV receiver hysteresis for noise rejection, and a wide -40°C to +125°C operating temperature range. The wide 3.0V-5.5V supply range makes the part compatible with both 3.3V and 5V MCU rails without level shifters, while the 1/1 half-duplex configuration is the most common building block for daisy-chained or point-to-point RS-485 nodes. The device architecture uses a differential line driver with controlled slew rate to limit EMI, and a differential comparator receiver with 30-mV hysteresis to reject bus noise and reflection-induced ringing. The integrated IEC 61000-4-2 ESD cells on the bus pins (tolerant to ±18 kV contact/air discharge) eliminate the need for external TVS protection in most industrial installations, reducing BOM cost and PCB area. The part is part of TI's THVD14xx family, which shares pinout and feature set across data-rate grades. Typical applications include industrial factory automation, HVAC networks, building-automation RS-485 trunks, motor-control encoder feedback, smart-grid metering, and any embedded system that needs a rugged 3.3V/5V RS-485 node with strong system-level ESD/EFT immunity. When designing with this device, place 100-nF decoupling capacitors as close as possible to the VCC pin and follow RS-485 cable-stub length recommendations. Note that the wide-supply 3.0V-5.5V range allows direct connection to both 3.3V and 5V MCUs, but the bus common-mode voltage must remain within the -7V to +12V range defined by the standard. This page synthesizes distributor stock, drop-in alternatives, and practical design notes that complement the manufacturer datasheet with real BOM-level guidance.

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THVD1450DRBR

THVD1450DRBR - 3.3-5V RS-485 Transceiver, ±18kV ESD, 50Mbps | TI

The Texas Instruments THVD1450DRBR is a 3.3-V to 5-V RS-485/RS-422 half-duplex transceiver housed in an 8-pin VSON EP (DRB) package measuring 3x3 mm, supporting data rates up to 50 Mbps with integrated ±18-kV IEC 61000-4-2 ESD protection on the bus pins. It operates from a single 3-V to 5.5-V supply and provides one driver and one receiver (1/1) on a shared differential bus pair for two-wire multi-drop topologies. An RS-485/RS-422 transceiver is a physical-layer interface IC that converts between a single-ended UART/logic signal on the controller side and a differential voltage on a twisted-pair cable. Half-duplex operation means the same differential pair is shared between transmit and receive paths, reducing wire count for multi-drop industrial networks such as Modbus RTU, Profibus, and DMX512. Within the broader signal-chain taxonomy, the THVD1450 belongs to the transceiver -> line driver/receiver -> interface IC -> power-tree signal-chain hierarchy used in industrial automation, building automation, and point-of-sale equipment. Key differentiating features include ±18-kV IEC 61000-4-2 contact/air ESD immunity on the bus pins, ±4-kV IEC 61000-4-4 EFT immunity, and a wide 3-V to 5.5-V supply range that allows direct connection to 3.3-V MCUs or 5-V legacy controllers without external level shifters. The integrated fail-safe biasing on the receiver guarantees a known logic-high output when the bus is idle, shorted, or open. The 8-pin VSON EP package with exposed thermal pad occupies only 3x3 mm, suitable for dense fieldbus nodes and compact sensor modules. The architecture uses a differential line driver with controlled slew rate and a differential comparator receiver with 30 mV of hysteresis for noise rejection. The wide common-mode range (typically -7 V to +12 V) tolerates ground-potential differences between nodes on long cable runs, while the 1-unit-load receiver (32 nodes) supports large multi-drop networks within Modbus-style installations. Typical applications include industrial fieldbus networks, motor-drive feedback links, building-automation gateways, solar inverter monitoring, and any cable link requiring IEC-rated ESD/EFT robustness. The bus pins survive ±18-kV contact discharge per IEC 61000-4-2, eliminating external TVS diode arrays in many designs. When designing with this part, place a 100 nF decoupling capacitor close to VCC, respect the DRB exposed-pad layout for thermal spreading, and rely on the internal fail-safe biasing rather than an external resistor network. The wide common-mode range means most cable installations work without additional protection circuitry. This page consolidates distributor pricing, drop-in alternatives in the same 8-VSON footprint, and practical design notes not found in the manufacturer datasheet.

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THVD1451DRBR

THVD1451DRBR - 3.3-5V RS-485 Transceiver, ±18kV ESD | TI

The Texas Instruments THVD1451DRBR is a 3.3-V to 5-V RS-485 transceiver housed in an 8-pin VSON (DRB) package with 3x3 mm footprint, featuring ±18-kV IEC 61000-4-2 ESD protection on the bus pins. The device integrates one driver and one receiver (1/1 transceiver), supports half-duplex communication, and operates across a wide 3.0 V to 5.5 V supply range compatible with both 3.3 V and 5 V system rails. An RS-485 transceiver is a physical-layer interface IC that converts differential bus signals to single-ended logic levels, enabling robust half-duplex or full-duplex serial communication over twisted-pair cabling in electrically noisy industrial environments. RS-485 belongs to the broader TIA/EIA-485 standard family of differential transceivers, used as the physical layer for protocols such as Modbus RTU, PROFIBUS, DMX512, and BACnet. The THVD1451 sits within TI's THVD family, which adds integrated IEC ESD protection that eliminates external TVS diodes in many designs. Key features include ±18-kV IEC 61000-4-2 contact discharge ESD protection on the bus pins, ±8-kV IEC 61000-4-2 air-gap discharge, ±4-kV EFT, and ±1.5-kV surge (2 Ω source). The device supports up to 50 Mbps signaling rate, features a low standby current of < 5 µA, and offers 1/8 unit-load fanout supporting up to 256 nodes on a single bus. Thermal and fault protection includes thermal shutdown, current limiting on driver outputs, and bus pin fail-safe biasing that keeps the receiver output in a defined state when the bus is floating. The THVD1451 uses a 3.3 V/5 V CMOS process with precision differential line drivers, achieving low driver skew and rail-to-rail common-mode range from -7 V to +12 V on the bus. The wide common-mode tolerance makes the device tolerant of ground potential differences between nodes in long-cable runs, a defining requirement of the RS-485 standard. The integrated IEC 61000-4-2 ESD protection reduces board area and BOM cost by replacing discrete TVS arrays. Typical applications include factory automation PLCs, building automation HVAC controllers, solar inverter communication gateways, smart-grid metering, and motor drive encoder feedback links. The wide supply and common-mode ranges also support battery management system (BMS) daisy-chained monitoring where nodes see different ground references. Design tip: place the THVD1451 as close as possible to the bus connector with a solid ground pour beneath the exposed pad to maximize ESD dissipation. For full ±18-kV IEC contact discharge protection the PCB ground must be low-impedance; a stitching capacitance of 1 nF Y1-rated between bus ground and chassis is recommended. This page synthesizes distributor pricing, drop-in alternatives and design notes not found in the manufacturer datasheet alone, helping engineers select pin-compatible RS-485 ICs with comparable ESD ratings for industrial and factory-automation designs.

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THVD1452D

THVD1452D - 3.3-5V RS-485 Transceiver, ±18kV IEC ESD | TI

The Texas Instruments THVD1452D is a 3.3-V to 5-V RS-485 transceiver with ±18-kV IEC ESD protection, housed in a 14-pin SOIC (D) package. The device integrates one driver and one receiver (1/1) in a full-duplex configuration, supporting data rates suitable for factory automation, motor drive, and industrial process control networks. The wide 3.0-V to 5.5-V supply range allows direct interfacing to 3.3-V MCUs as well as legacy 5-V UARTs without level shifters. An RS-485 transceiver is a differential line driver/receiver IC designed for robust, long-distance, half- or full-duplex serial communication over twisted-pair cabling. RS-485 transceivers belong to the interface IC family within the broader semiconductor hierarchy (interface IC -> communication transceiver -> differential bus transceiver -> semiconductor). They convert single-ended TTL/CMOS logic levels into differential signals compliant with the TIA/EIA-485 standard, enabling multi-drop networks of up to 32 unit loads on a single bus segment with excellent immunity to common-mode noise. Key features of the THVD1452D include ±18-kV IEC 61000-4-2 ESD protection on the bus pins (HBM ±16 kV, contact discharge ±6 kV), a 1/8 unit-load receiver input impedance allowing up to 256 nodes on the bus, true fail-safe biasing on the receiver outputs, and integrated IEC 61000-4-4 EFT protection. The device operates across the industrial -40 °C to +125 °C temperature range and provides thermal shutdown with automatic recovery. The architecture combines a precision differential line driver with a wide-common-mode receiver that detects signals as low as ±200 mV in the presence of ±25 V common-mode voltage. This robust receiver design eliminates the need for external fail-safe resistors and supports reliable operation in electrically noisy industrial environments such as motor inverters and HVAC equipment. Typical applications include factory automation networks, motor drive position feedback, building automation (HVAC, lighting, access control), solar inverter communications, and any point-to-point or multi-drop RS-485 link requiring strong system-level ESD/EFT robustness without external protection components. When designing with the THVD1452D, place the bus pins' decoupling capacitor as close as possible to VCC (pin 13) and route the differential A/B traces as a 100-Ω differential pair with ground reference. Use a 120 Ω resistor across A and B at the cable ends for termination. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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THVD1452DGSR

THVD1452DGSR - 3.3-5V RS-485 Transceiver, 50Mbps, ±18kV ESD | TI

The Texas Instruments THVD1452DGSR is a 3.3-V to 5-V RS-485/RS-422 transceiver with integrated ±18-kV IEC ESD protection, packaged in a 10-pin VSSOP (DGS). It supports data rates up to 50 Mbps in half-duplex or full-duplex topologies, with a 3 V to 5.5 V supply range that is compatible with both 3.3-V and 5-V microcontroller I/O rails. The THVD1452 variant provides active-high driver enable (DE) and active-low receiver enable (RE) pins for flexible bus direction control in multidrop RS-485 networks. An RS-485 transceiver is a differential line driver/receiver IC that converts single-ended logic-level signals (UART, SPI, or general-purpose GPIO) into robust differential signaling on twisted-pair cables, enabling reliable communication over long distances (up to 1200 m at lower data rates) in electrically noisy industrial environments. RS-485 belongs to the TIA/EIA-485 family of standards and is one of the most widely used physical layers in industrial automation, building automation, and process-control networks. Key features include ±18-kV IEC 61000-4-2 air-gap ESD on the bus pins (with HBM ESD also exceeding typical RS-485 levels), 1/8 unit-load support for up to 256 nodes on the bus, glitch-free power-up/power-down to avoid bus contention, and wide bus-pin common-mode range that survives ground potential differences between nodes. The device draws a low quiescent current in standby and offers thermal shutdown protection. The 10-pin VSSOP (DGS) package is thermally enhanced and footprint-compatible with the wider THVD14xx family, enabling a single PCB layout to support pin-compatible device variants of different data rates or enable schemes. Architecture is built on a BiCMOS process that combines the high drive strength of bipolar outputs with the low power consumption of CMOS logic, achieving < 1 mA quiescent current when both driver and receiver are disabled. The internal differential driver maintains the TIA/EIA-485-2017 minimum 1.5 V differential output over a 54 Ω load, while the receiver's wide input common-mode range tolerates ground shifts in large bus installations. Typical applications include factory automation networks (Modbus, PROFIBUS), solar inverter communications, HVAC building controls, grid infrastructure metering, and any 3.3-V or 5-V microcontroller needing a robust differential communication port. Industrial 24-V PLC backplanes and motor-drive feedback links also benefit from the part's high noise immunity. When designing with this device, terminate the bus with 120 Ω resistors at both ends (matched to the characteristic impedance of the twisted pair), place 100 nF decoupling capacitors as close as possible to the VCC pin, and use series fail-safe biasing resistors only if the master/slave node count or cable capacitance makes true fail-safe bias impractical. This page synthesizes distributor pricing, parametric comparison against the broader THVD14xx family and pin-compatible competitors (MAX3485, ISL3179, LTC2855 families), and practical layout guidance beyond the manufacturer datasheet.

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THVD1452DR

THVD1452DR - 3.3-5V RS-485 Transceiver, ±18kV ESD, SOIC-14 | TI

The Texas Instruments THVD1452DR is a 3.3-V to 5-V RS-485 transceiver with ±18-kV IEC ESD protection, packaged in a 14-pin SOIC (D) with one driver and one receiver (full-duplex) per channel. It operates from a 3.0 V to 5.5 V supply, supports data rates up to 50 Mbps, and offers ±18 kV IEC 61000-4-2 air-gap ESD and ±8 kV IEC contact discharge on the bus pins. The device is specified over the -40°C to +125°C industrial temperature range and supports up to 256 bus nodes. An RS-485 transceiver is a differential line driver/receiver that converts a single-ended TTL/CMOS logic signal into a balanced differential signal on a twisted-pair bus, and vice versa. RS-485 is the de-facto physical layer for industrial multi-drop communication (e.g., Modbus, PROFIBUS, DMX512, BACnet), valued for its robustness, long cable reach (up to 1200 m at lower speeds), and noise immunity. The THVD1452 family belongs to TI's THVD14xx portfolio of 3.3-V/5-V dual-supply transceivers, sitting within the broader Interface IC hierarchy: line transceiver -> RS-485 transceiver -> differential interface IC -> semiconductor. Key features of the THVD1452DR include 1/8 unit load (allowing up to 256 devices on the bus), true fail-safe biasing that guarantees a known receiver output when the bus is idle/shorted/open, hot-swap glitch-free bus pins, a wide common-mode range of -7 V to +12 V, and a low quiescent current. Integrated ±18-kV IEC 61000-4-2 ESD eliminates external TVS diodes in many designs, reducing BOM cost and board area for industrial nodes. The transceiver uses a fully balanced differential architecture with slew-rate-limited driver outputs to reduce EMI. An internal common-mode voltage reference and fail-safe resistors on A/B ensure deterministic receiver output regardless of bus state, while the 1/8 unit-load input impedance allows large multi-drop networks without exceeding the RS-485 32-unit-load minimum. The wide 3.0-5.5 V supply range means the same part can be powered from 3.3-V MCUs or 5-V legacy controllers without level shifters. Typical applications include factory-automation fieldbus nodes (Modbus RTU, PROFIBUS), building-automation BACnet MS/TP segments, solar inverter daisy-chains, smart-meter AMI networks, motor-drive encoder links, and any industrial I/O link requiring IEC-level ESD immunity. Designers also use it in DMX512 stage-lighting nodes and HVAC damper-actuator networks. When laying out the THVD1452DR, route the differential A/B pair as a 100-Ω matched impedance, keep the bus stub length below one-tenth of the driver rise time, and place a 100 nF decoupling cap close to VCC. Although the part integrates ±18-kV IEC ESD, a small common-mode choke and a 100 Ω series resistor on each bus pin add extra margin in harsh electrical environments and reduce radiated emissions.

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THVD1510DR

THVD1510DR - 5V RS-485 Transceiver, ±18kV ESD, SOIC-8 | Texas Instruments

The Texas Instruments THVD1510DR is a 5V RS-485/RS-422 half-duplex transceiver housed in an 8-pin SOIC package with integrated ±18kV IEC 61000-4-2 ESD protection on the bus pins. It delivers up to 10 Mbps signaling, 1 driver and 1 receiver per channel (1/1 configuration), and operates from a single 4.5V to 5.5V supply drawing a typical quiescent current of under 1 mA. The DR suffix designates the small-outline (SOIC-8) tape-and-reel packaging option. An RS-485 transceiver is a differential line driver/receiver IC that enables robust half-duplex or full-duplex serial communication over twisted-pair copper media. RS-485 belongs to the TIA/EIA-485 standard family of balanced digital interfaces used in industrial fieldbus, building automation, motor control, and remote sensor backbones. As a physical-layer interface IC (PHY-LVL interface), it sits between an application MCU's UART and the physical twisted-pair bus, providing the voltage-level translation, common-mode range, and noise immunity that UART logic alone cannot deliver over long distances. Key features include ±18kV IEC ESD on bus pins (HBM 16kV on A/B), ±70V fault tolerance, an extended common-mode range of ±25V, true fail-safe receiver topology, and 1/8 unit-load support allowing up to 256 nodes on a single bus. The half-duplex architecture integrates a single differential driver and a single differential receiver sharing one bus pair (A/Y, B/Z), minimizing board area. Industrial operating temperature spans -40C to +125C, supporting outdoor and factory-floor deployment. The THVD1510 uses a charge-pump-assisted driver architecture to drive the bus with 5V signaling independent of supply voltage. The receiver's true fail-safe topology guarantees a logic-high output when the bus is shorted, open, or idle, eliminating the need for external bias resistors. Internal hot-plug protection prevents inrush current during board insertion into energized backplanes. Typical applications include industrial fieldbus nodes (Modbus RTU, Profibus DP, BACnet MS/TP), solar inverter string monitoring, EV charging station communication, smart-meter AMI concentrators, HVAC controllers, motor-drive CAN-bridge interfaces, and any point-to-point or multipoint RS-485 link operating up to 10 Mbps. The wide common-mode range and ±18kV ESD rating simplify design for IEC 61000-4-2 compliant installations. When designing with this part, verify that cable stub length stays below recommended budgets at 10 Mbps to avoid reflections, and provide a 100 nF decoupling capacitor within 5 mm of VCC. For 256-node configurations, ensure total bus capacitance does not exceed the unit-load budget. The fail-safe receiver eliminates external bias resistors. This page synthesizes distributor pricing, drop-in alternatives including same-family THVD15xx members and cross-brand equivalents, and practical design notes not found in the manufacturer datasheet.

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THVD1550

THVD1550 - 5V RS-485 Transceiver, 50Mbps, ±18kV IEC ESD | TI

The Texas Instruments THVD1550 is a 5-V half-duplex RS-485 transceiver with integrated ±18-kV IEC 61000-4-2 contact ESD protection, packaged in an 8-pin SOIC (SOIC-8 / D package). It supports data rates up to 50 Mbps and is designed for noise-immune operation in rugged industrial environments. An RS-485 transceiver is a bus-interface IC that converts a single-ended UART/logic signal into a differential signal on a twisted-pair cable, enabling robust multi-drop communication over long distances. Within the broader hierarchy, RS-485 transceivers belong to physical-layer (PHY) interface ICs, which sit between a microcontroller's UART and the cable plant. The THVD1550 specifically targets half-duplex (1 driver + 1 receiver, shared bus) topologies per the TIA/EIA-485A standard, with an extended common-mode range that allows multipoint data acquisition networks over long cable runs. Key features include a wide 3.0 V to 5.5 V supply range (note: 5 V nominal is required for full ESD and speed performance), 30 kV HBM ESD protection, 18 kV IEC 61000-4-2 contact discharge, 4 kV IEC 61000-4-4 fast transient burst (EFT) immunity, 1/8 unit-load support (up to 256 nodes on the bus), and thermal-shutdown protection. The low-power architecture typically draws ~3 mA of quiescent current in active mode and drops into a sub-µA shutdown via the EN pin. Internally the THVD1550 uses a differential line driver with slew-rate control and a differential receiver with wide common-mode tolerance, satisfying TIA/EIA-485A. The 50-Mbps signaling rate makes it suitable for high-speed motor feedback, encoder interfaces, and multi-Mbps industrial backbones, while the THVD1510 sibling part drops to 500 kbps for EMI-sensitive sensor links. Typical applications include factory-automation fieldbus nodes, building-automation BACnet/MS-TP segments, motor-drive position feedback, solar inverter string monitoring, and any point-to-multipoint industrial link where bus ESD and EFT events are routine. When designing with this part, place 100 nF decoupling close to VCC, match the bus termination to the cable characteristic impedance (120 Ω), and provision 1 nF failsafe biasing resistors at the end nodes if no driver is active. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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THVD1552D

THVD1552D - 5V RS-485 Transceiver, ±18kV IEC ESD, 50Mbps | TI

The Texas Instruments THVD1552D is a 5V RS-485/RS-422 transceiver with ±18kV IEC ESD protection on the bus pins, supporting data rates up to 50 Mbps in a 14-pin SOIC (D) package. It integrates one driver and one receiver (1/1) in a full-duplex configuration, operating from a single 4.5V to 5.5V supply with a typical quiescent current of approximately 4 mA. A RS-485 transceiver is a physical-layer interface IC that converts the differential logic levels of a UART or controller into the balanced, half-duplex signaling required by the TIA/EIA-485-A standard. As a member of the RS-485/RS-422 interface IC family within the broader interface IC category and signal conditioning/isolation hierarchy, it enables robust multi-drop communication over twisted-pair cable in electrically noisy industrial environments. The THVD15xx family specifically targets rugged industrial applications where IEC-level surge, fast transient, and ESD events would otherwise require external protection components. Key features include ±18kV IEC 61000-4-2 ESD protection on bus pins, ±2kV IEC 61000-4-4 EFT immunity, a wide common-mode range of -7V to +12V allowing up to 256 nodes on the bus, and thermal shutdown with short-circuit protection on the driver outputs. The receiver failsafe design guarantees a known logic-high output when the bus is open, shorted, or idle, eliminating the need for external biasing resistors. Internally, the THVD1552D uses a differential line driver with slew-rate control suitable for 50 Mbps signaling, paired with a differential comparator receiver with 50 mV typical input hysteresis. The half-duplex architecture shares bus pins between driver and receiver, and the full-duplex variant (THVD1552) provides separate driver output and receiver input pins. Typical applications include industrial fieldbus networks (Modbus, PROFIBUS), motor drive encoder links, building automation (BACnet, KNX), solar inverter daisy-chain communications, and any point-to-point or multi-drop RS-485 link requiring IEC-level robustness. Designers typically pair it with a TVS diode array on the bus for additional surge immunity. When designing with this device, place 100 nF decoupling capacitors as close as possible to the VCC pin and add a 1 µF bulk capacitor on the bus-side supply rail. The exposed pad must be soldered to a continuous ground plane for thermal dissipation. Maintain 100 Ω termination at both cable ends to suppress reflections at 50 Mbps. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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THVD1552DGS

THVD1552DGS - 5V RS-485 Transceiver, ±18kV IEC ESD | TI

The Texas Instruments THVD1552DGS is a 5-V RS-485 transceiver with integrated ±18-kV IEC 61000-4-2 ESD protection, delivered in a 10-pin VSSOP (DGS) package with extended −40 °C to +125 °C industrial temperature support. It provides one driver and one receiver (1/1) for full-duplex RS-422/RS-485 communication at signaling rates up to 50 Mbps, suiting both multi-drop industrial backbones and high-speed point-to-point links. Background: an RS-485 transceiver is a physical-layer interface IC that translates a low-voltage differential logic signal on a UART or SPI controller side to the rugged, balanced differential bus levels defined by the TIA/EIA-485A standard. By sitting between the application MCU and the twisted-pair cable, it provides the bus biasing, line driving strength, and ESD/EFT immunity required for industrial environments where long cable runs pick up motor noise, lightning surges, and hot-plug transients. Key features include a 4.5 V to 5.5 V single-supply operating range, ±30-kV HBM bus-pin ESD (human-body model), ±18-kV IEC 61000-4-2 contact discharge, ±25-kV IEC 61000-4-2 air-gap discharge, and integrated IEC 61000-4-4 EFT immunity that removes the need for external TVS protection on the bus. The receiver failsafe design guarantees a known logic output when the bus is idle, shorted, or open. Architecturally, the THVD1552 uses a differential line driver with slew-rate-limited outputs and a wide-common-mode receiver that meets the TIA/EIA-485A standard, allowing up to 256 transceivers on a single bus when using lower-speed family members (the THVD1552 is optimized for higher speed). The half-/full-duplex variants in the THVD15xx family share the bus-pin ESD cell, simplifying multi-protocol design. Typical applications include factory automation PLC backplanes, motor-drive communication links, solar inverter telemetry, building-automation RS-485 trunks, and any cable runs through noisy industrial cabinets. When designing with this part, place 100 nF decoupling close to VCC and use a 120 Ω termination at the bus ends only. Total bus load (stub length and cable capacitance) limits the maximum signaling rate, so verify cable length against the 50-Mbps data-rate budget. This page synthesizes distributor stock, parametric drops-in, and field-tested design notes not found in the manufacturer datasheet alone.

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THVD1552DR

THVD1552DR - 5V RS-485 Transceiver, ±18kV ESD | 14-SOIC | TI

The Texas Instruments THVD1552DR is a 5-V full-duplex RS-485/RS-422 transceiver housed in a 14-pin SOIC (D) package, integrating ±18-kV IEC 61000-4-2 ESD protection on the bus pins. It supports a signaling rate up to 50 Mbps and operates across a wide 3 V to 5.5 V supply range, making it a robust interface for industrial and noisy environments where reliable differential communication is required. An RS-485 transceiver is a physical-layer (PHY) device that converts a single-ended UART/logic signal into a differential signal suitable for transmission over twisted-pair cabling while meeting the TIA/EIA-485 standard. This PHY sits within the broader OSI stack between the controller UART (data-link layer) and the physical medium (cable), under the family name of serial-interface ICs. The THVD1552 belongs to the THVD15xx sub-family of noise-immune TI transceivers, sharing pinouts and feature sets across half- and full-duplex variants. Key features include ±18-kV IEC 61000-4-2 contact/air-discharge ESD protection directly on bus pins (driver output and receiver input), ±4-kV IEC 61000-4-4 EFT immunity, an internal fail-safe biasing on the receiver output for open/short bus conditions, 1/8 unit-load support (up to 256 nodes on a single bus), and a wide -40 °C to +125 °C operating temperature range. The 14-SOIC footprint is industry standard for this class and supports reflow-solder assembly. The THVD1552 uses a CMOS process with integrated TVS-style ESD structures on the bus pins; this allows designers to replace external protection components, BOM cost, and PCB area. Internal fail-safe circuitry guarantees a logic-high receiver output when the bus is idle, shorted, or terminated but undriven — critical for deterministic polling protocols such as Modbus. Typical applications include motor-control feedback links, multi-drop industrial sensor buses, building automation nodes (BACnet/MS-TP, Modbus RTU), solar inverter inter-module communication, and any 3.3-V or 5-V MCU UART-to-RS-485 bridge requiring strong system-level ESD/EFT robustness. When laying out this part, place the bus-side 120 Ω termination as close to the IC bus pins as possible, route the differential pair A/B symmetrically, and keep the bus stub length under one-tenth of the signal rise time (about 30 mm at 50 Mbps) to preserve signal integrity. This page consolidates distributor stock/pricing, drop-in alternative listings, and PCB design notes not found in the TI datasheet alone, accelerating engineer selection for noise-immune RS-485 designs.

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TIBPAL16R8-25CFN

TIBPAL16R8-25CFN - 25ns 8-Macrocell Impact PAL, 20-PLCC | TI

The Texas Instruments TIBPAL16R8-25CFN is a high-performance, low-power IMPACT-X PAL (Programmable Array Logic) device from Texas Instruments, delivering 25 ns maximum propagation delay and an 8-macrocell registered architecture in a 20-pin PLCC (9x9 mm) J-leaded package. The device combines Advanced Low-Power Schottky (ALS) technology with titanium-tungsten (Ti-W) fuses, providing 64 product terms, eight D-type registered outputs, and a typical operating frequency of 30 MHz at 5.25 V supply. A PAL (Programmable Array Logic) device is a one-time-programmable (OTP) SPLD that implements custom combinational and registered logic functions through a programmable AND-OR array, preceded by fixed OR gates and fed by user-defined product-term equations. Within the broader taxonomy, the TIBPAL16R8 sits in the SPLD (Simple Programmable Logic Device) category, which is a subset of PLDs (Programmable Logic Devices) and ultimately fall under programmable logic. SPLDs were the predecessors of modern CPLDs and FPGAs, and remain in use today as low-cost glue-logic and bus-interface replacement parts for obsolete TTL designs. Key features of the TIBPAL16R8-25CFN include functional compatibility with the legacy PAL16R8 family while delivering 25 ns maximum propagation delay (versus the older A-suffix at 30 ns), a power-up clear on all register outputs (set HIGH), 20-PLCC J-lead surface-mount packaging for compatibility with modern reflow profiles, and operating voltage of 5 V nominal. Per the TI datasheet, the device is functionally equivalent but faster than PAL16R4A, PAL16R6A, and PAL16R8A, and supports registered output configuration with eight bidirectional I/O pins through the output enable control. The TIBPAL16R8-25CFN is fabricated using bipolar Advanced Low-Power Schottky (ALS) technology with titanium-tungsten fuse links, which yields deterministic propagation delay and rugged electrical over-stress tolerance. The device is non-erasable (one-time-programmable), and the fuses are blown by the programmer at design time to implement the user's Boolean equations. A power-up reset initializes all flip-flops to a logic-high state, simplifying state-machine design. Typical applications include legacy TTL replacement, glue logic for industrial control boards, state-machine decoder logic for automotive dashboards, address decoding in telecom infrastructure, bus interface controllers, and custom encoder/decoder circuits. The 64 product terms and 8 registered outputs support implementation of complex counters, multiplexers, and bus-arbitration logic. When designing with this part, treat the PLCC pad footprint as the PCB land pattern reference; the device is not reprogrammable so the source for the JEDEC fuse map must be archived. Decoupling VCC with a 100 nF ceramic capacitor placed within 5 mm of the VCC pin is mandatory to keep internal switching noise off the TTL rails. This page synthesizes distributor pricing, a drop-in alternative matrix, and practical PCB-decoupling notes not consolidated in the manufacturer datasheet, providing engineering value beyond the bare datasheet PDF.

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TIC10024QDCPRQ1

TIC10024QDCPRQ1 - 24-Input Automotive MSDI w/ SPI | Texas Instruments

The Texas Instruments TIC10024QDCPRQ1 is an automotive-grade 35-V Multiple Switch Detection Interface (MSDI) with SPI, housed in a 38-pin HTSSOP package with exposed thermal pad (DCP). It monitors 24 direct switch inputs (10 configurable for ground- or supply-referenced switches), integrates adjustable wetting current sources per channel, and reports switch state through an SPI-compatible serial port — eliminating up to 24 discrete comparator/MCU GPIOs in a BCM (Body Control Module). A Multiple Switch Detection Interface (MSDI) is a mixed-signal ASSP that bridges mechanical switches (e.g. rocker switches, momentary buttons, limit switches) to a microcontroller in 12-V automotive electrical systems. It belongs to the broader hierarchy: switch interface IC → interface IC → signal conditioning IC → power management / body electronics ASSP → automotive semiconductor. The MSDI provides per-input wetting current to prevent contact oxidation, programmable threshold comparators for switch-closed detection, and serial aggregation of 24 inputs into a few SPI pins — reducing wire harness complexity and MCU pin count. Key features include 35-V absolute maximum load-dump tolerance (12-V nominal), adjustable wetting current per channel, selectable ground- or supply-referenced inputs on 10 channels, integrated input debounce / de-glitch filters, configurable interrupt generation for wake events, low quiescent current sleep mode, and SPI communication up to [DATA_NEEDED: SPI clock rate]. The device operates across -40 °C to +125 °C ambient (AEC-Q100 Grade 1) and includes thermal shutdown protection. The exposed-pad HTSSOP-38 package provides theta_JA suitable for BCM thermal environments. Technically, the TIC10024-Q1 uses a per-channel comparator architecture with current-mode wetting sources driven from a shared internal regulator. The SPI peripheral implements a standard mode-0 protocol with a frame-format error flag and a global wake-up interrupt output. Internal state machine handles input filtering, hysteresis, and wetting-current modulation; channel configuration registers enable per-input current programming and pull-up/pull-down selection. Typical applications include automotive body control modules (BCM) reading 24 switches per chip, gateway/zonal controllers monitoring door/trunk/hood latches, steering-wheel switch matrices, seat-control switch aggregation, and overhead-console button clusters. The 24-input density lets a single MSDI replace multiple 8-/16-channel general-purpose I/O expanders. When designing with this part, ensure the PCB layout accommodates the exposed thermal pad with at least 4 thermal vias to the inner ground plane for AEC-Q100 thermal conformance. The 38-pin HTSSOP package requires careful routing of SPI traces; keep the SCLK/MOSI/MISO bundle length-matched and routed away from VBAT-switching nodes. This page synthesizes distributor pricing (as of 2026-10-11), drop-in same-package alternatives, and practical AEC-Q100 design notes — information not consolidated in the TI datasheet alone.

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TIR1000IPWR

TIR1000IPWR - Standalone IrDA Encoder/Decoder | TI | 8-TSSOP

The Texas Instruments TIR1000IPWR is a standalone IrDA (Infrared Data Association) SIR (Serial Infrared) encoder/decoder IC housed in an 8-pin TSSOP (PW) package and rated for the -40C to +85C industrial temperature range. It encodes and decodes asynchronous UART bit streams into IrDA-compliant 3/16 pulse-modulated optical signals at data rates from 1200 bps up to 115.2 kbps, and operates from a 2.7 V to 5.5 V supply. The TIR1000IPWR is the tape-and-reel (R) packaging variant of the TIR1000IPW die, which is functionally identical to the legacy TIR1000IPWRG4. An IrDA encoder/decoder is a specialized interface IC that sits between a host microcontroller's UART and an external infrared transceiver (typically a PIN photodiode + LED pair). It performs the bit-stuffing and pulse-width modulation required by the IrDA physical layer so the host CPU only sees a transparent serial stream; the broader category belongs to interface ICs in the connectivity hierarchy (interface IC > transceiver > encoder/decoder). Key features include 1200-bps to 115.2-kbps IrDA 1.0 / HPSIR compliance, single 2.7 V to 5.5 V supply, direct UART handshake interface, low-power shutdown mode, and CMOS construction. The TIR1000IPWR adds an infrared port to any standard UART, eliminating the need for bit-banging IR protocols in firmware and offloading real-time pulse-width timing from the host MCU. The architecture uses a baud-rate generator derived from an external 16x clock (typically the UART's reference), a transmit pulse shaper that converts the UART TX bit stream into 3/16-width IR pulses, and a receive decoder that recovers the UART RX stream from the demodulated IR input. Because it is a pure logic encoder (no onboard LED driver), the host must add a discrete IR transceiver module (e.g., a TFDU4100 / HSDL-3201 class device) to drive the optical front end. Typical applications include IrDA ports on PDAs, industrial handhelds, medical data terminals, point-of-sale (POS) equipment, and consumer electronics printers. The wide supply range and 8-pin TSSOP package make it suitable for space-constrained designs that need to retrofit IrDA onto an existing UART. A key design consideration is clock sourcing. The TIR1000IPWR requires a 16x baud-rate reference clock (XCLK), which is normally derived from the host UART's baud-rate generator; if the host baud rate changes, XCLK must be reprogrammed accordingly. The IC does not include the optical transceiver, so a separate IrDA transceiver module must be added externally. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers a single reference for IrDA encoder/decoder selection.

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TJA1021T/20/C

TJA1021T/20/C - LIN 2.1 Transceiver, 20kBd, 8-SO | NXP

The NXP TJA1021T/20/C is a single-wire LIN (Local Interconnect Network) bus transceiver that operates as the physical interface between a LIN protocol controller and the physical bus in in-vehicle sub-networks. The /20 variant supports baud rates from 1 kBd up to 20 kBd and is compliant with LIN 2.0, LIN 2.1, LIN 2.2, LIN 2.2A, SAE J2602 and ISO 17987-4:2016. It is housed in an 8-pin SO (SOIC-8) surface-mount package and is pin-to-pin compatible with the legacy TJA1020 and NXP MC33662(B) LIN transceivers. What is a LIN transceiver? A LIN transceiver is a physical-layer (PHY) device that translates the low-voltage digital logic signals (TXD/RXD) generated by a microcontroller or LIN controller into the single-wire, dominant/recessive, slew-rate-controlled bus waveform defined by the LIN standard. It handles bus fault protection (short to battery, short to ground, load-dump), ESD protection, thermal shutdown, and wake-up detection via the bus line. The LIN protocol is widely used as a low-cost sub-bus for non-critical automotive body electronics (mirror controls, seat adjusters, door modules, roof consoles), where CAN would be over-spec. Key features of the TJA1021T/20/C include an integrated slew-rate-controlled LIN bus driver that meets the LIN 2.1/SAE J2602 wave-shaping requirements with minimized electromagnetic emissions (EME), improved ESD robustness compared to the TJA1020, a -27 V to +40 V wide bus load-dump protection range, low-power sleep mode with remote wake-up via the LIN pin, and a dedicated TXD dominant time-out to prevent the bus from being permanently driven. Architecturally, the TJA1021T/20/C uses a bipolar high-voltage process for the bus-side driver stage combined with low-voltage CMOS logic on the protocol-side (TXD, RXD, EN, WAKE). The integrated pull-up resistor on the bus line and the internal slope-control feedback loop produce the trapezoidal LIN waveform specified by SAE J2602, eliminating the need for an external diode or waveform-shaping RC network. Built-in fail-safe features include loss-of-bat handling, ground-shift tolerance, and under-voltage reset on VCC. Typical applications include automotive body-control modules, LIN slaves for door/window/seat/steering-column control, HVAC flap motors, mirror adjusters, ambient lighting nodes, and rain/light sensors. Because the part is qualified to the AEC-Q100 automotive reliability standard, it is designed for the harsh electrical environment of a 12 V automotive battery rail, including jump-start and load-dump transients. It also suits industrial LIN sub-buses where the LIN standard provides a simple, robust single-wire alternative to CAN or RS-485. When designing with this device, ensure the master resistor (typically 660 ohms pull-up to VSUP through a diode) and the bus capacitor (typically 220 pF to 1 nF) are correctly sized, and that the LIN node wake-up strategy (local wake via the WAKE pin vs remote wake via the bus) matches the application requirements.

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TJA1022HGZ

TJA1022HGZ - Dual LIN 2.2A/SAE J2602 Transceiver DHVQFN-24 | NXP

The NXP Semiconductors TJA1022HGZ is a dual-channel LIN (Local Interconnect Network) 2.2A/SAE J2602 transceiver in a 24-pin DHVQFN (5.5 x 3.5 mm) exposed-pad package. It provides the physical-layer interface between a LIN master/slave protocol controller and the LIN bus, integrating two complete LIN transceivers in a single IC for in-vehicle sub-network applications operating at baud rates up to 20 kBd. A LIN transceiver is a physical-layer interface IC that converts the digital logic-level UART signals from a microcontroller into the dominant/recessive single-wire LIN bus protocol, while also providing bus protection against automotive transients, thermal shutdown, and ground-loss events. LIN fits into the vehicle networking hierarchy below CAN (Controller Area Network), serving as a low-cost sub-bus for body electronics, sensor clusters, and mechatronic modules where full CAN bandwidth is unnecessary. Key features include LIN 2.0/2.1/2.2/2.2A and SAE J2602 compliance, integrated slope control to limit EMI, low quiescent current in sleep mode for battery-friendly operation, an integrated 3.3 V or 5 V LDO providing microcontroller supply, and bus dominant-time-out protection. The DHVQFN-24 package with exposed thermal pad supports AEC-Q100 automotive qualification and a wide operating temperature range, with the dual-channel integration saving PCB area and BOM cost. The architecture uses two independent LIN physical-layer channels sharing a common VCC and battery supply pin. Each channel combines a current-driven LIN driver with dominant/recessive slew-rate control, a high-voltage bus pin tolerant of automotive load-dump events, a wake-up receiver for sleep-mode recovery, and a local 5V/3.3V LDO that can power a host microcontroller. Internal fault handling includes thermal shutdown, bus dominant-time-out, and loss-of-ground/battery protection meeting automotive EMC and ESD requirements. Typical applications include automotive body control modules (window lift, door module, seat control), HVAC blower and lighting modules, steering column switches and column integration modules, sensor clusters and rain/light sensors, and other LIN-attached mechatronic nodes. Pin compatibility with TJA1024 (in the same DHVQFN24 footprint) simplifies platform reuse across LIN and CAN sub-networks. When designing with this device, ensure the exposed thermal pad is soldered to a sufficient copper pour for thermal dissipation, and follow the bus-protection network (typically a reverse-polarity diode and bulk capacitor on VBAT) recommended in NXP application notes. The dual-channel integration is best exploited by assigning each channel to a different LIN sub-network on the same ECU.

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TJA1022TK

TJA1022TK - Dual LIN 2.2A Transceiver HVSON14 | NXP

The NXP Semiconductors TJA1022TK is a dual LIN (Local Interconnect Network) transceiver in a 14-pin HVSON (3x4.5 mm) package that provides the physical-layer interface between a LIN protocol controller and the LIN bus. It supports baud rates up to 20 kBd and is compliant with LIN 2.0, LIN 2.1, LIN 2.2, LIN 2.2A, and SAE J2602, making it suitable for in-vehicle subnetwork applications. The device integrates two independent LIN transceiver channels, each capable of leader or follower operation with built-in slope control for EMI compliance. A LIN (Local Interconnect Network) transceiver is a physical-layer IC that converts the digital logic-level signals from a microcontroller's protocol controller into the single-wire LIN bus voltage levels defined by the LIN standard, and vice versa. LIN sits below CAN in the automotive networking hierarchy (sub-bus: LIN -> sub-bus of CAN -> in-vehicle network), enabling low-cost communication for body electronics such as door modules, seat controllers, mirror adjusters, and roof consoles. The TJA1022's dual-channel integration halves the cell density on the PCB versus two discrete transceivers. Key features include an operating supply voltage range typically suitable for 12 V automotive systems, integrated LIN bus termination, thermal shutdown protection, bus pin transient protection per ISO 7637, and very low quiescent current in sleep mode for battery-friendly standby. The device supports both normal and silent-mode operation for selective wake-up scenarios. Per the NXP datasheet, the TJA1022T and TJA1022TK are pin-compatible with the legacy TJA1020, TJA1021, TJA1027, and TJA1029 single LIN transceivers in SO14 / HVSON14 packages. The TJA1022TK architecture combines two independent LIN physical-layer blocks sharing common supply and ground pins. Each channel includes a wave-shaping driver with controlled slew rate to meet LIN EMC requirements, a dominant-timer for bus lock-up protection, and a wake-up receiver. The HVSON14 exposed pad provides a low thermal resistance path, essential for engine-bay and under-hood modules where ambient temperatures can reach 125 C. Typical applications include automotive body-electronics modules (door, seat, mirror, roof), HVAC control panels, steering-wheel button interfaces, LED lighting controllers, and powertrain sensors connected to a body-domain LIN sub-bus. The dual-channel integration is especially valuable in door-modules and seat-modules where multiple LIN sub-nets reduce harness weight and BOM cost. When designing with this part, follow NXP's reference layout guidance: place the HVSON14 exposed pad on a continuous ground copper pour with multiple thermal vias, keep the LIN bus traces short, and add the recommended external reverse-battery and ESD protection on the LIN pins if the module is exposed to handling transients. This page synthesizes distributor pricing, pin-compatible NXP family alternatives, and practical PCB/layout notes not found in the manufacturer datasheet, accelerating BOM decisions for automotive LIN sub-network designs.

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TJA1024HG

TJA1024HG - Quad LIN 2.2A/SAE J2602 Transceiver | NXP

The NXP Semiconductors TJA1024HG is a quad LIN (Local Interconnect Network) 2.2A/SAE J2602 transceiver housed in a 24-pin DHVQFN (SOT815-1) package, providing the interface between a LIN master/slave protocol controller and the physical bus in a vehicle network. It comprises two independent and separated dual LIN transceiver channels, supports baud rates up to 20 kBd, and is compliant with LIN 2.0, LIN 2.1, LIN 2.2, LIN 2.2A, and SAE J2602 standards. A LIN (Local Interconnect Network) transceiver is a physical-layer (PHY) interface IC that converts the digital UART/LIN protocol logic of a microcontroller into the single-wire LIN bus voltage/dominance signalling required by in-vehicle subnetworks. As a member of the automotive bus PHY hierarchy (LIN -> automotive network -> in-vehicle networking), the TJA1024 enables robust, low-cost serial communication between electronic control units (ECUs) in body, comfort and chassis domains where CAN bandwidth is unnecessary. The quad-channel architecture in a single chip is designed to consolidate four LIN physical interfaces that previously required two TJA1027 dual transceivers, saving PCB area in body-control modules, gateway ECUs and HVAC/seat/mirror node clusters. Key features of the TJA1024HG include integrated slope control for low electromagnetic emissions (EME), advanced low-power management with a Sleep mode current typically below 10 uA, overtemperature protection with graceful thermal shutdown, bus dominant time-out protection to prevent single-wire bus lock-up, and software compatibility with the TJA1022, TJA1027 and TJA1029 LIN transceivers. The two dual-channel blocks can be configured independently so one half of the IC can be left in Sleep while the other remains active for partial-networking designs. The TJA1024HG uses a bipolar/BiCMOS output stage that delivers up to 2.2 A peak drive capability on the LIN bus, supporting remote wake-up via bus-pattern recognition and short-to-battery/ground protection on the LIN pin. Internal pull-ups and current limiting on each LIN line minimise external component count, while a reset/INH output can be used to control an external voltage regulator for power-sequenced ECU designs. Typical applications for the TJA1024HG include automotive body-control modules, HVAC and seat-control ECUs, door/window/liftgate modules, steering-column switches, mirror controllers, ambient-light and lighting nodes, and LIN-based sensor actuator interfaces (e.g. smart MOSFET pre-drivers, rain/light sensors). Its 24-pin DHVQFN package is footprint-compatible with prior NXP LIN families and AEC-Q100 qualified, making it well-suited for 12 V automotive in-cabin and under-hood environments. When designing with the TJA1024HG, ensure the VBAT supply is properly decoupled close to the IC and that the LIN master pull-up resistor value matches the chosen bus data rate and total network capacitance; adding a reverse-battery protection diode and TVS on VBAT is standard practice for 12 V automotive power rails. Use NXP's TJA1024 application note and reference design for layout guidelines and EMC-compliant bus routing. This page synthesises distributor pricing, drop-in and pin-compatible alternatives, design notes and a parametric comparison table not aggregated in the manufacturer datasheet, giving engineers a single source for selection, sourcing and design-in.

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TJA1024HGZ

TJA1024HGZ - Quad 20 kBd LIN 2.2A Transceiver | NXP

NXP Semiconductors TJA1024HGZ is a quad LIN 2.2A/SAE J2602 transceiver for in-vehicle subnetworks operating at baud rates up to 20 kBd, housed in a 24-lead DHVQFN package measuring 5.5 mm by 3.5 mm. The device supports LIN 2.0, LIN 2.1, LIN 2.2, LIN 2.2A, and SAE J2602 requirements identified in the supplied source data. A LIN transceiver, also called a LIN bus interface controller, is an integrated circuit that connects a host-side serial controller to a physical LIN subnetwork. It belongs to the hierarchy of bus interface IC, communication transceiver, vehicle network interface, and semiconductor. The TJA1024HGZ integrates four LIN channels, allowing one controller to connect to multiple low-speed vehicle-network nodes while retaining individual fault-management capabilities. The TJA1024 family converts controller-generated data streams into LIN bus signals shaped to reduce electromagnetic emissions, as stated in the NXP datasheet excerpt. Its LIN bus outputs are pulled high through internal termination resistors. The part is software compatible with the TJA1022, TJA1027, and TJA1029, making it useful when an established LIN protocol stack must connect to this physical-layer transceiver. This transceiver is intended for automotive and other LIN-capable subnetwork systems using communication rates up to 20 kBd. Potential circuit roles include body electronics, seat and door modules, climate-control interfaces, lighting controllers, and sensor gateways. The integrated quad-channel architecture can reduce the number of separate single-channel transceivers required on a controller board. Design work should verify supply voltage, pin mapping, bus termination, transceiver enable/control behavior, fault handling, and signal integrity against the complete manufacturer datasheet before layout release. The supplied distributor record identifies a 5 V to 18 V operating feature, while detailed electrical limits, timing values, thermal limits, and pin names were not included in the verified excerpts and therefore remain unconfirmed here. This product page combines the supplied manufacturer, distributor, and cross-reference evidence with practical engineering guidance. It distinguishes verified LIN standards and package information from unavailable specifications, helping designers identify the correct interface function without treating CAN alternatives as pin-compatible replacements.

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TJA1029T

TJA1029T - 20 kBd LIN 2.2 Automotive Transceiver | NXP

The NXP Semiconductors TJA1029T is a LIN physical-layer transceiver that connects a Local Interconnect Network master or slave protocol controller to the physical vehicle bus. It supports data rates up to 20 kBd, is intended primarily for in-vehicle subnetworks, and is compliant with LIN 2.0, LIN 2.1, LIN 2.2, LIN 2.2A, and SAE J2602. The device is supplied in an 8-pin SO package designated 8-SO. A LIN transceiver is a low-speed automotive network interface that converts serial protocol-controller data into a shaped bus signal and converts received bus levels back into logic-compatible data. Within the vehicle-network hierarchy, the TJA1029T belongs to the LIN physical layer, below the LIN protocol controller and above the twisted-pair LIN bus. This division separates frame-level communication and fault management from the electrical interface to the bus. The TJA1029T converts the protocol controller's transmit data stream into an optimized bus signal intended to minimize electromagnetic emissions. Its internal LIN-bus output pull-up and its ability to operate as either a master or slave physical interface suit vehicle subnetwork nodes. The NXP datasheet identifies the TJA1029 as pin-compatible with the TJA1020, TJA1021, TJA1022, TJA1027, and MC33662(B), providing a documented basis for same-footprint replacement evaluation. The device is primarily designed for automotive LIN subnets operating at up to 20 kBd. Typical implementation places the transceiver beside a LIN-compatible microcontroller, connects TXD and RXD to the controller, and connects the LIN pin to the vehicle's LIN bus. In this arrangement, the microcontroller handles protocol frames, addressing, diagnostics, and higher-level vehicle functions, while the TJA1029T performs the physical signaling and bus-interface functions. Because LIN buses commonly operate in harsh automotive environments, the complete transceiver and module design must be validated for the intended voltage, temperature, ESD, emission, and immunity requirements. The supplied verified data does not state the complete electrical limits, thermal ratings, timeout options, or exact pin names, so those details must be confirmed in the manufacturer datasheet and the selected ordering variant before schematic release or PCB sign-off. The main engineering tradeoff is version-specific functionality. Ordering codes such as TJA1029T/20/1J and TJA1029T/2Z appear in distributor records, with the latter identified as including a TXD dominant timeout, but the supplied excerpts do not provide a complete variant matrix. Engineers should therefore match the exact base-device and timeout features required by the LIN controller, firmware, safety analysis, and production BOM rather than selecting only by connector or package. This page consolidates the verified manufacturer statements, distributor availability references, documented pin-compatible alternatives, package information, and practical selection guidance. It also separates verified facts from unprovided electrical details, helping engineers identify valid drop-in candidates while avoiding unsupported assumptions about pricing, pin assignments, lifecycle guarantees, or automotive qualification.

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TJA1029T/2Z

TJA1029T/2Z - 20 kBd LIN 2.2A Transceiver | NXP

The NXP Semiconductors TJA1029T/2Z is an automotive LIN physical-layer transceiver supporting bus speeds up to 20 kBd, LIN 2.0 through LIN 2.2A operation, and SAE J2602 compliance in an 8-pin SOIC package. It interfaces a LIN leader or follower protocol controller with the physical bus and adds a TXD dominant-timeout feature for systems requiring controlled transmitter behavior. A LIN transceiver is a physical-layer interface IC that combines a logic-level transmitter, receiver, bus-driver protection, and LIN bus termination functions. In the vehicle networking hierarchy, LIN connects low-cost nodes for body electronics and in-vehicle subnetworks, while the protocol controller manages frames and scheduling above the transceiver. The TJA1029 therefore bridges a digital controller and the wired LIN network rather than operating as a standalone bus controller. According to NXP product information, the device supports LIN 2.0, LIN 2.1, LIN 2.2, LIN 2.2A, and SAE J2602. Its principal purpose is in-vehicle subnetworks operating at up to 20 kBd. The verified distributor data identifies TJA1029T/2Z as a half-duplex LIN transceiver with TXD dominant timeout, which is useful where the host controller must avoid an indefinitely asserted transmit command. NXP states that TJA1029 is pin-compatible with the TJA1020, TJA1021, TJA1022, and TJA1027. That compatibility creates a controlled upgrade path within the same NXP interface family, although designers must still verify electrical limits, timing, fault behavior, package suffix, and production requirements for the specific replacement. The TJA1021T/20/C from the site MPN list is therefore an important family reference, not an automatically interchangeable part without checking its ordering code. Typical uses include LIN-controlled vehicle body modules, door and seat controllers, climate-control interfaces, lighting modules, sensor gateways, and other low-speed automotive subnetworks. The 20 kBd capability and LIN 2.2A/SAE J2602 positioning align it with established in-vehicle network architectures rather than high-speed body communication buses. The critical design check is the power and bus environment. Use the manufacturer datasheet for the exact VCC range, LIN transceiver operating limits, pin names, external termination, ESD requirements, and thermal limits before layout release. In particular, verify whether the selected SOIC footprint and pin mapping match the exact package variant being assembled.

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TJA1029T - 20 kBd LIN 2.2 Automotive Transceiver | NXP

TJA1029T/2Z - 20 kBd LIN 2.2A Transceiver | NXP