인터페이스 IC
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TJF1052IT/5Y - Isolated CAN Transceiver 2Mbps 5kV | NXP
The NXP TJF1052IT/5Y is a galvanically isolated high-speed CAN (Controller Area Network) transceiver delivering 2 Mbps data rate across a 5000 Vrms isolation barrier in a 16-pin SOIC (7.50 mm) package. It integrates a CAN protocol controller interface, isolated power, and isolated bidirectional logic signals in a single IC, eliminating the need for external digital isolators, isolated DC-DC converters, and discrete CAN transceivers on the same PCB. An isolated CAN transceiver is a device that bridges a host microcontroller's CAN protocol controller to the physical two-wire differential CAN bus while maintaining galvanic isolation (no direct electrical connection) between the high-voltage bus side and the low-voltage logic side. This category sits within the broader hierarchy of CAN transceivers -> automotive/industrial bus transceivers -> interface ICs -> wired communication ICs. Galvanic isolation is required for safety, ground-loop elimination, and noise immunity when the bus operates at high common-mode voltages relative to the host controller. Key features of the TJF1052IT/5Y include 20 kV/us common-mode transient immunity (CMTI), integrated DC-DC isolation power, ±58 V bus fault protection, and thermal shutdown. The device supports the ISO 11898-2 standard CAN physical layer and is compatible with both classic CAN and CAN FD (Flexible Data-rate) frames up to 2 Mbps. Power dissipation is bounded by the SOIC-16W package's thermal resistance, making it suitable for industrial automation nodes and battery management system peripherals. Architecturally, the TJF1052IT/5Y combines an on-chip coreless-transformer isolation barrier, an isolated CAN physical layer, and a fully integrated isolated power supply. This single-chip integration replaces the typical 3-chip solution (CAN transceiver + digital isolator + isolated DC-DC), reducing BOM count, PCB area, and design complexity while improving reliability through fewer solder joints. Typical applications include industrial automation PLC fieldbus nodes, solar inverter CAN interfaces, battery management system (BMS) slave modules in e-mobility, and railway signaling where reinforced isolation is mandatory. The wide bus fault tolerance also makes it suitable for 24 V truck and 48 V mild-hybrid automotive environments. When designing with this device, note that the integrated isolation removes the requirement for optocouplers, but the PCB layout must still preserve the 5 kV creepage and clearance at the package level. Decoupling capacitors close to the VCC pins on both sides of the isolation barrier are critical for stable CAN signal integrity. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet. Engineers comparing isolated CAN transceivers will find cross-reference data, parametric tables, and design guidance consolidated for accelerated part selection and PCB reuse.
TLE7250VSJ - 2 Mbit/s CAN FD Transceiver, PG-DSO-8 | Infineon
The Infineon TLE7250VSJ is a high-speed CAN FD transceiver supporting data rates up to 2 Mbit/s, compliant with ISO 11898-2 and housed in a PG-DSO-8 package. It features a digital supply input V_IO and a power-save mode, and is designed to fulfill the enhanced physical layer requirements of CAN FD networks used in automotive body, chassis and powertrain ECUs. According to the Infineon datasheet, the TLE7250V family (TLE7250VLE and TLE7250VSJ) meets or exceeds ISO 11898-2 requirements and supports data rates up to 2 Mbit/s with optimized slew rates for large HS-CAN networks. A CAN transceiver is a physical-layer interface IC that sits between a CAN protocol controller and the differential CAN bus wires (CANH, CANL). It converts single-ended TXD/RXD logic levels from the microcontroller into differential bus voltages defined by ISO 11898-2, and vice versa for reception. The TLE7250VSJ's optimized slew rate limits electromagnetic emission (EME) while preserving signal integrity at 2 Mbit/s, making it suitable for mixed-supply HS-CAN networks where 5 V microcontrollers and 3.3 V MCUs coexist on the same bus. Key features include low EME / high EMI immunity, an integrated V_IO supply input for direct interfacing with 3.3 V or 5 V microcontrollers without level shifters, three operating modes (normal, receive-only, power-save) selectable via NEN and NRM pins, AEC-Q100 qualification for automotive use, and RoHS-compliant halogen-free PG-DSO-8 packaging. Built on Infineon Smart Power Technology (SPT), the device integrates strong ESD and electromagnetic immunity on-chip. Typical applications include automotive gateway ECUs, body control modules, powertrain CAN networks, ADAS sensor CAN buses, and industrial CAN FD nodes. The PG-DSO-8 package supports automated optical inspection (AOI) of solder joints, simplifying automotive-grade manufacturing. When designing the bus termination, ensure 120 ohm termination at each end of the CAN segment and place decoupling capacitors close to VCC and V_IO pins to maintain EMI performance. This page synthesizes distributor pricing, drop-in alternatives and application notes not found in the manufacturer datasheet, helping engineers select, source and lay out the TLE7250VSJ quickly for automotive CAN FD designs.
TLE9222LCXUMA1 - FlexRay Transceiver | TSON-14 | Infineon
The Infineon TLE9222LCXUMA1 is a FlexRay transceiver IC supplied in a 14-pin PG-TSON surface-mount package (3 mm x 4.5 mm body) with an exposed thermal pad. It implements the physical layer of the FlexRay automotive networking standard and is the world's smallest FlexRay transceiver in the market per the manufacturer, addressing tight PCB real-estate constraints in chassis, powertrain and ADAS ECUs. The part supports data rates up to 10 Mbit/s, integrates bus failure management, and provides a low-power standby mode with remote wake-up capability. A FlexRay transceiver is a physical-layer (PHY) device that sits between a microcontroller's FlexRay Communication Controller and the differential FlexRay bus. It converts digital logic-level signals from the controller into differential bus voltages conforming to the FlexRay electrical specification, and vice versa for reception. The transceiver category sits within the broader automotive communication IC hierarchy of transceivers -> interface ICs -> integrated circuits. FlexRay was developed as a deterministic, fault-tolerant backbone for high-speed in-vehicle networking, supporting time-triggered and event-triggered communication with bandwidth up to 10 Mbit/s per channel. Key features of the TLE9222LCXUMA1 include an integrated bus failure detection (open, short-to-GND, short-to-VBAT) with diagnostic output, low standby current consumption for battery-sensitive applications, and an extended automotive temperature operating range. The PG-TSON-14-3 package exposes a thermal pad to the PCB for efficient heat removal through the copper pours. The TLE9222LCXUMA1 part number suffix -XUMA1 indicates reel packaging for high-volume surface-mount assembly. Typical applications for the TLE9222LCXUMA1 include electronic control units in chassis-by-wire systems (steering, braking, suspension), powertrain ECUs, ADAS sensor fusion controllers, and body-domain modules where deterministic, redundant communication is required. The combination of small package footprint, robust bus failure diagnostics, and low-power modes suits compact ECU designs where PCB area is at a premium. When designing with this device, follow Infineon's recommended PCB layout for the exposed thermal pad and use a star-grounding scheme for the bus shield connection. Always consult the manufacturer datasheet for the latest bus failure threshold values and EMC optimization recommendations for the differential bus termination network. This page synthesizes Infineon datasheet parameters, distributor pricing tiers, drop-in alternative candidates, and practical design notes - information not found in any single manufacturer datasheet page.
TLE9250XSJXUMA1 - 5Mbps CAN FD Transceiver PG-DSO-8 | Infineon
The Infineon TLE9250XSJXUMA1 is a high-speed CAN FD transceiver supporting data rates up to 5 Mbit/s, supplied in an 8-pin PG-DSO-8 package with operating voltage range 4.5 V to 5.5 V and an automotive temperature grade of -40 C to +150 C. It implements the physical layer according to ISO 11898-2 (2016) and is qualified to AEC-Q100 for automotive use, making it a drop-in interface between a microcontroller's CAN protocol controller and the differential bus wiring. The 5 Mbit/s CAN FD capability is essential for modern automotive networks carrying larger payloads such as ADAS sensor data, diagnostic telemetry, and gateway traffic. A CAN transceiver is a physical-layer interface IC that translates a microcontroller's digital CAN TXD/RXD logic-level signals into the differential CANH/CANL bus signaling required by the ISO 11898-2 standard. It also provides bus fault tolerance, dominant time-out, and ESD protection on the bus pins. In the broader hierarchy, the TLE9250XSJ sits between the protocol controller (an MCU or standalone CAN controller) and the wiring harness, protecting the controller from bus transients while driving the bus to the required differential voltage levels. Key features include very low electromagnetic emission (low EME) optimized for automotive EMI requirements, a low-power mode with remote wake-up via CAN bus activity, integrated bus pin ESD protection, dominant time-out for TXD stuck-dominant fault handling, and overtemperature shutdown. These features minimize external component count and simplify compliance with OEM EMC standards. The device also supports a 3.3 V compatible logic interface on TXD/RXD/EN/NSTB pins, allowing direct connection to modern low-voltage microcontrollers without level shifters. From an architecture standpoint, the TLE9250XSJ uses a fully integrated differential driver and receiver with separate supply pins for the digital interface (VDD, 3.3 V to 5 V) and the bus driver (VSUP, battery). This split-rail approach allows the bus to remain powered while the MCU side is off, supporting partial networking and low quiescent current in sleep mode. The internal slope control reduces radiated emissions at high bus speeds, eliminating the need for external common-mode chokes in most applications. Typical applications include automotive body control modules (BCM), gateway ECUs connecting multiple CAN sub-networks, electric vehicle battery management systems (BMS), ADAS sensor fusion nodes, and industrial CAN FD networks. Its wide supply range and automotive-grade qualification make it equally suitable for 12 V and 24 V truck/commercial-vehicle platforms. A key design consideration is the use of a common-mode choke and split bus termination (60 ohm between CANH and CANL plus two 30 ohm to ground) for optimum signal integrity at 5 Mbit/s. The non-sleep current is typically below 10 uA with remote wake-up enabled, making the part well-suited for partial networking where ECUs may be selectively powered down. This page synthesizes distributor stock, drop-in alternatives within the PG-DSO-8 footprint, and practical design guidance not found in the manufacturer datasheet alone.
TLE9351VSJXTMA1 - 5Mbps CAN FD Transceiver PG-DSO-8 | Infineon
The Infineon TLE9351VSJXTMA1 is a high-speed CAN FD transceiver supporting ISO 11898-2, SAE J2284, and CAN FD up to 5 MBit/s, housed in an 8-pin PG-DSO-8 package. It operates from a 3.3V or 5V supply and includes a standby mode for low quiescent current, targeting automotive in-vehicle networks where reliable bus communication is mandatory. The part is AEC-Q100 qualified, confirming its suitability for harsh automotive electrical environments including load-dump, jump-start, and reverse-battery transients. A CAN transceiver (Controller Area Network transceiver) is a physical-layer IC that sits between a microcontroller's CAN protocol controller and the differential CAN bus. It converts single-ended TX/RX logic levels into the differential dominant/recessive bus states defined by ISO 11898-2 and rejects common-mode noise through high common-mode rejection. In the broader system hierarchy it belongs to: transceiver -> physical-layer interface -> in-vehicle networking IC -> automotive power management and communication IC -> semiconductor. CAN FD (Flexible Data-rate) extends classic CAN by increasing the data-phase bit rate while keeping the arbitration phase at the legacy bit rate, enabling larger payloads and faster ECU-to-ECU throughput. Key features include bus fault protection up to ±42V, thermal shutdown, undervoltage detection on VCC, and a low-power standby mode with bus wake-up capability. The receiver exhibits high common-mode immunity for reliable operation in noisy automotive harnesses, and the transmitter delivers a tightly controlled differential output with slope control to limit EMI. The PG-DSO-8 footprint is industry-standard for 8-pin CAN transceivers, simplifying PCB layout migration between competing solutions. Typical applications include body control modules, gateway ECUs, powertrain ECUs (where CAN FD is increasingly required), battery management system CAN interfaces, and ADAS sensor clusters. The standby mode enables quiescent current budgets in the microamp range, supporting always-on CAN networks that must wake the ECU upon bus activity. When designing with this part, place the VCC decoupling capacitor within 2mm of the VCC pin and route the CANH/CANL traces as a 100-ohm-impedance differential pair with ground stitching vias. Use a TVS diode such as NUP2105L on the bus pins to survive ISO 7637-2 pulse transients not covered by the IC's internal ±42V protection. The SPLIT pin, if used, requires a capacitor to ground. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the standalone manufacturer datasheet.
TLIN1029A-Q1 - LIN Transceiver w/ Dominant Timeout | TI
The Texas Instruments TLIN1029A-Q1 is a fault-protected Local Interconnect Network (LIN) physical-layer transceiver, supporting data rates up to 20 kbps per LIN 2.x and ISO 17987-4, and packaged in an 8-pin SOIC (DRQ1) or 8-pin SON (DRBRQ1). The vehicle-side bus pin tolerates ±42 V load-dump transients and integrates a current-limited wave-shaping driver plus an internal LIN pull-up for responder-node applications, allowing reduced BOM versus discrete implementations. A LIN physical-layer transceiver is a single-wire, bidirectional bus interface IC that converts logic-level UART data into a current-shaped LIN bus waveform (dominant/recessive) and back, providing the physical medium for low-cost in-vehicle sub-networks such as body control modules, mirror switches, seat controllers, and sensor clusters. TLIN1029A-Q1 sits within the broader LIN transceiver category, which itself is a sub-family of automotive interface ICs standardized by ISO 17987 and the LIN Consortium. Key features include an integrated wake-up pattern detector compliant with LIN 2.x and ISO 17987-4, ±42 V fault protection on the LIN bus pin, ±15 kV HBM ESD on LIN and ±8 kV on the battery pin (per HBM model), dominant-state timeout to prevent bus lock-up, undervoltage detection on VSUP, thermal shutdown, and back-feed prevention that blocks current flow from LIN to VSUP during ground-shift events. The 8-pin SOIC and 3 mm × 3 mm SON options give designers a layout choice for both through-hole-style reflow and space-constrained modules. Architecturally the device combines a high-side driver with active current limiting, a recessive-side pull-up, a comparator-based receiver, and a state machine for wake-up pulse recognition; this integration removes the need for an external LIN pull-up resistor and a TVS diode in moderate-environment designs. Typical applications include body control modules, HVAC control panels, steering-wheel switch interfaces, door/window lift switches, seat-position memory modules, and LED lighting controllers. The wide VSUP range and integrated fault protection suit 12-V automotive battery systems including cold-crank and load-dump conditions. When designing with TLIN1029A-Q1, place a 100 nF decoupling capacitor close to VSUP and follow LIN bus layout guidelines (single-node stub, controlled impedance, ground return path) to meet EMC requirements per IEC 61967 and SAE J2962. This page synthesizes distributor pricing, AEC-Q100 compliance context, and drop-in alternatives not consolidated in the manufacturer datasheet.
TLIN1029DRBRQ1 - LIN Transceiver w/ Vreg 20kBd Auto AEC-Q100
The Texas Instruments TLIN1029DRBRQ1 is an AEC-Q100 qualified LIN (Local Interconnect Network) physical layer transceiver with integrated voltage regulator and wake-up protection, housed in an 8-pin VSON EP (DRB) package. It supports LIN 2.0, LIN 2.1, LIN 2.2, LIN 2.2A and ISO 17987-4 electrical physical layer specifications at data rates up to 20 kbps, designed primarily for 12-V automotive in-vehicle networks with wider bus fault tolerance. A LIN (Local Interconnect Network) transceiver is a single-wire bidirectional bus interface IC that connects low-cost body-electronics modules (door locks, mirrors, seat controllers, HVAC flaps) to a vehicle's central body control module. As a sub-class of in-vehicle networking, LIN sits below CAN-FD in the automotive network hierarchy - LIN -> sub-bus -> body network -> vehicle network -> automotive electronics. The TLIN1029 family specifically adds an integrated LDO to power the local microcontroller from the LIN bus supply, eliminating the need for an external regulator. Key features of the TLIN1029DRBRQ1 include AEC-Q100 Grade 1 qualification for automotive applications, integrated dominant state timeout to prevent a single node from hogging the bus, ±42-V bus fault tolerance, ±15-kV HBM ESD protection on the LIN pin, and ultra-low current sleep mode with remote/local wake-up support. The integrated LDO delivers up to 70 mA to power local sensors or microcontrollers directly from the bus. Technically, the part operates over a 4.5-V to 36-V supply range (Load Dump tolerant up to 42 V), consumes less than 10 µA in sleep mode, and includes thermal shutdown, undervoltage lockout, and reverse-battery protection. The 8-pin VSON EP (3x3 mm) package provides an exposed thermal pad for enhanced power dissipation in harsh under-hood or door-module operating environments. Typical applications include automotive body control modules, HVAC control, mirror and seat adjustment modules, steering column switches, sunroof controllers, and lighting modules. The integrated regulator eliminates one external component, reducing BOM cost and PCB area in space-constrained body-electronics modules. When designing with the TLIN1029DRBRQ1, add a reverse-battery protection diode or MOSFET on the supply pin for ISO 7637-2 transient compliance, and follow the LIN bus termination guidelines (master typically adds 1 kΩ + diode; slave uses internal pull-up). The WAKE pin allows local wake-up from the bus without a full MCU boot. This page synthesizes distributor availability, AEC-Q100 qualified drop-in alternatives, and automotive LIN bus design notes not found in the manufacturer datasheet alone.
TLIN1039-Q1 - LIN Transceiver, 36V, 20kbps TX | Texas Instruments
The Texas Instruments TLIN1039-Q1 is an AEC-Q100 (Grade 1) qualified Local Interconnect Network (LIN) physical-layer transceiver housed in an 8-pin TSOT-23 (DDF) package. It supports data rates up to 20 kbps on the transmitter path and up to 100 kbps on the receiver for faster in-line programming. The part targets 12-V automotive networks with a wide 4.5 V to 36 V supply range and extended bus-fault protection rated at ±45 V, alongside greater than ±8 kV HBM and IEC ESD protection levels on the LIN bus pin. A LIN transceiver is the physical-layer interface for the LIN (Local Interconnect Network) bus, a single-wire, low-speed serial protocol widely used for in-vehicle body and comfort networks such as door modules, seat controllers, mirror switches, and HVAC actuators. The TLIN1039-Q1 belongs to the family of automotive LIN transceivers within the broader category of interface ICs / physical-layer transceivers, sitting beneath the CAN/LIN/FlexRay hierarchy of in-vehicle networking standards. Its role is to translate CMOS-level TXD/RXD logic into the dominant/recessive current-driven LIN bus waveform that meets the LIN 2.0/2.1/2.2/2.2A, ISO/DIS 17987-4 and SAE J2602-1 physical-layer specifications. Key features of the TLIN1039-Q1 include integrated local and remote wake-up support, a current-limited wave-shaping driver that reduces electromagnetic emissions (EME), an open-drain RXD output for flexible logic interfacing, internal pull-down on TXD for fail-safe behavior, dominant-state time-out protection, and ±45 V bus-fault tolerance with thermal shutdown. The combination of wide operating voltage, bus-fault ruggedness and AEC-Q100 Grade 1 qualification makes the part well suited to harsh automotive electrical environments including jump-start, load-dump and reverse-battery transients. Architecturally, the device combines a bandgap-referenced voltage regulator, a current-limited open-drain LIN driver with slew-rate control, a window comparator receiver, and a state-machine that handles dominant time-out, thermal shutdown, under-voltage lockout and wake-up detection. The integrated ESD cell on the LIN pin exceeds ±8 kV HBM, eliminating the need for an external TVS in most 12-V automotive LIN node designs. Typical applications include body control modules, door/window/seat/mirror modules, HVAC control nodes, steering column switches, lighting ECUs, and sensor/actuator nodes that must interface with a LIN master in an in-vehicle network. The receiver's higher 100 kbps capability also enables faster in-line programming of slave ECUs over the LIN bus. When designing with this device, ensure that VSUP is decoupled with a 100 nF ceramic capacitor close to the pin, and that the LIN bus pin is protected by the bus-pin ESD structure rather than an external TVS, since adding a TVS can load the bus and disturb the LIN waveshaping. The TXD pin must not be pulled high to VSUP, as TLIN1039-Q1 only provides an internal pull-down. This page synthesizes manufacturer datasheet parameters, distributor availability, drop-in same-family alternatives, and practical automotive design notes not consolidated in any single source.
TLIN821-Q1 - Automotive Fault-Protected LIN Transceiver | Texas Instruments
The TLIN821-Q1 from Texas Instruments is an automotive fault-protected local interconnect network (LIN) physical layer transceiver. It supports data rates up to 20 kbps and is designed for low-speed UART-based communication in vehicle networks. The device is housed in an 8-pin SON (DRB) package, making it suitable for space-constrained automotive electronic control units. A LIN transceiver is a physical layer device that interfaces a microcontroller's UART to the single-wire LIN bus. It converts the TXD signal from the MCU into a bus signal and senses the bus state to drive the open-drain RXD output. The TLIN821-Q1 includes a current-limited wave-shaping driver that reduces electromagnetic emissions (EME), helping meet automotive EMC requirements.“ Key features include integrated ESD protection, under-voltage protection, thermal shutdown, and ground fault protection. The device also offers inhibit and wake functions, allowing the LIN node to enter low-power mode and be woken by bus activity or a dedicated wake signal. This reduces current consumption in parked vehicles. The TLIN821-Q1 is AEC-Q100 qualified, ensuring reliable operation across the automotive temperature range. Its robust fault protection prevents damage from accidental shorts, ground drifts, or supply disconnections. According to the TI datasheet, when a fault occurs, the transmitter is disabled until the fault is removed. Typical applications include automotive body control modules, door and seat control units, lighting systems, HVAC actuators, and battery management systems. With its 20 kbps data rate and fault-tolerant design, it is the ideal choice for LIN-based automotive networking.
TLIN829-Q1 - Fault-Protected LIN Transceiver, 20kbps | TI
The Texas Instruments TLIN829-Q1 is an automotive fault-protected Local Interconnect Network (LIN) physical-layer transceiver with integrated dominant-state timeout, supporting data rates up to 20kbps and operating from a wide 5.5V to 28V supply (with extended fault tolerance above 28V). Housed in an 8-pin SOIC or 8-pin SON (DRB 3x3) package, it converts a TXD logic-level data stream into a single-wire LIN bus waveform via a current-limited wave-shaping driver, and converts the bus signal back to logic levels through an open-drain RXD pin. The transceiver complies with LIN 2.0, LIN 2.1, LIN 2.2, LIN 2.2A, SAE J2602, and ISO/DIS 17987-4 standards. According to TI product page data, the LIN receiver additionally supports fast in-line programming at rates up to 100kbps. The TLIN829-Q1 is a 12V-system optimized, cost-effective derivative of the TLIN1029A-Q1 and TLIN1029-Q1 family, sharing the same family footprint and adding wider operating voltage, bus-fault protection, and a dominant-state watchdog that prevents the bus from being stuck in the dominant state due to software or hardware faults. What is a LIN transceiver? A LIN (Local Interconnect Network) transceiver is a physical-layer (PHY) device that connects a microcontroller's UART-style logic domain to a single-wire, low-cost automotive communication bus. It typically integrates a wave-shaping transmitter, a comparator-based receiver, bus fault protection (against shorts to battery, ground, and adjacent LIN nodes), ESD protection, and a low-power wake-up mechanism. LIN sits hierarchically under in-vehicle networking alongside CAN (Controller Area Network), FlexRay, and Automotive Ethernet - LIN targets low-speed, low-cost nodes like door modules, mirror adjusters, and seat controllers, while CAN/Ethernet handle higher-bandwidth powertrain and ADAS domains. Key features include: integrated dominant-state timeout for fail-safe bus recovery, ±45V LIN bus fault tolerance (load-dump tolerant), ±15kV HBM ESD on the LIN pin per IEC 61000-4-2, ultra-low quiescent current in sleep mode, thermal shutdown, and an active-high WAKE input that wakes the device from sleep without MCU intervention. The part supports both 3.3V and 5V MCU logic via a separate VCC/VSUP rail scheme. The 8-pin SOIC (D) and 8-pin SON (DRB 3x3) packages provide small footprint for space-constrained body-electronics modules. Typical applications include automotive body control modules (BCM), HVAC control, door/window/seat modules, steering column controls, rain/light sensors, mirror adjusters, headlamp leveling, and interior lighting nodes. The part's AEC-Q100 Grade 1 qualification (-40C to +125C) makes it suited for underhood and cabin applications alike. Designers should ensure proper LIN bus termination (typically a master pull-up of 1kΩ plus a diode to VSUP, and a slave pull-up of 30kΩ in the device), use a 100nF X7R decoupling capacitor close to VSUP, and route the LIN trace as a short, stub-free single-ended line, twisted if possible, to minimize radiated emissions. The dominant-state timeout is configurable; refer to the datasheet's register or strap-setting description for the chosen mode.
TLV320AC37CN - 3V Voice-Band Audio Processor | Texas Instruments
The TLV320AC37CN is a voice-band audio processor (VBAP) from Texas Instruments, designed for single 3-V operation with low power consumption. It integrates a combined A/D, D/A converter and filters, supporting sample rates up to 16 kHz and a pass-band to 7.2 kHz. The device is housed in a 20-pin PDIP package, making it suitable for through-hole assembly in telecommunication and audio applications. A voice-band audio processor (VBAP) is a specialized mixed-signal IC that combines analog-to-digital and digital-to-analog conversion with filtering and signal processing optimized for the 300 Hz to 3.4 kHz voice band. It sits within the broader category of audio codecs, which are essential in telephony, intercoms, and voice-controlled systems. The TLV320AC37CN specifically targets low-power, battery-operated voice applications, offering a complete analog front-end and codec in a single package. Key features include a low operating power of 20 mW typical, standby mode at 5 mW, and power-down mode at 2 mW. The device supports extended variable-frequency operation with sample rates up to 16 kHz and a pass-band to 7.2 kHz. It includes an electret microphone interface, making it ideal for direct connection to electret condenser microphones. The combined A/D, D/A, and filters simplify system design by reducing external components. Technically, the TLV320AC37CN employs a CMOS process and operates from a single 3-V supply, which is critical for portable and battery-powered equipment. The device features a PCM codec interface with A-law companding, suitable for digital telephony standards. The through-hole PDIP-20 package ensures easy prototyping and manual assembly, though it limits high-density applications compared to surface-mount alternatives. Typical applications include digital telephone answering machines, speakerphones, intercom systems, and voice recorders. The low power consumption and 3-V operation make it particularly suited for battery-powered devices where efficiency is paramount. The integrated filters and codec reduce BOM cost and board space. When designing with this device, ensure proper decoupling of the 3-V supply and careful layout of the analog and digital sections to minimize noise coupling. The device is now obsolete, so consider pin-compatible alternatives for new designs.
TLV320AIC3106IRGZT - Low-Power Stereo Audio CODEC | TI
The Texas Instruments TLV320AIC3106IRGZT is a low-power stereo audio CODEC with 10 inputs, 7 outputs, integrated headphone amplifier, and enhanced digital effects, housed in a 48-pin VQFN (RGZ) 7x7 mm package. It supports 16/20/24/32-bit PCM data at sample rates from 8 kHz to 96 kHz with 102 dBA signal-to-noise ratio on the DAC path, and operates from a 1.8 V digital supply plus a 3.3 V analog supply, consuming as little as 15 mW during stereo 48 kHz DAC playback. An audio CODEC (coder-decoder) is an integrated circuit that converts between digital audio streams and analog microphone/line/headphone signals, combining an ADC input path and DAC output path inside a single chip. The TLV320AIC3106 sits in the broader hierarchy of audio interface ICs -> interface ICs -> integrated circuits, and is widely deployed in portable, battery-powered, and space-constrained designs where low power, stereo playback, and integrated headphone drive are required simultaneously. Multiple line, microphone, and headphone amplifiers share an extensive register-based power-control interface, enabling fine-grained energy management as system use cases change. Key features of the TLV320AIC3106 include stereo 24-bit ADC and DAC with 102 dBA SNR, integrated 40 mW headphone amplifier, programmable 3D / bass / treble / EQ digital effects, and selectable single-ended or fully-differential analog inputs. The digital serial audio bus supports I2S, left-justified, right-justified, and DSP/PCM modes for flexible connection to virtually any application processor or DSP. An automatic gain control (AGC) block on the ADC path keeps microphone levels stable across varying speech distances. At the architectural level the device pairs a multi-bit delta-sigma modulator front end with on-chip FIR and IIR engine blocks so that tone control, EQ, and de-emphasis are applied digitally without burdening the host processor. PLL-based clock generation accepts common 12, 13, 24, or 27 MHz system clocks and derives all internal timing from them, simplifying board layout by removing the need for a dedicated audio master crystal in many designs. Extensive register-based power control keeps unused analog blocks powered down until audio paths are activated. Typical applications span portable media players, portable navigation devices, mobile phones and VoIP handsets, portable gaming, digital still cameras and camcorders, ultrasonic imaging, IP phones and USB headsets, as well as portable audio docks and Bluetooth speakers. The combination of low power, integrated headphone drive, and rich on-chip digital effects makes it equally suitable for stereo playback and full-duplex voice-capture products. When designing with this part, ensure both the 1.8 V digital and 3.3 V analog rails are well decoupled close to the IC, and that the PLL reference clock is selected to match the chosen MCLK frequency in software. Because the device supports both single-ended and differential microphone paths, designers should populate the unused input pins according to the datasheet reference circuit rather than leaving them floating. This page synthesizes distributor pricing, drop-in alternatives, and practical design considerations for the TLV320AIC3106IRGZT and its sibling variants into a single design-oriented reference beyond the raw manufacturer datasheet.
TLV320AIC3110IRHBT - Low-Power Audio Codec with Class-D Amp | TI
The TLV320AIC3110IRHBT is a low-power, highly integrated audio codec from Texas Instruments, featuring a stereo audio DAC and a mono audio ADC, along with a 1.3W stereo Class-D speaker amplifier. It supports 32-bit audio data and communicates via I2C or serial interface. The device is housed in a 32-pin VQFN (5x5 mm) package, making it suitable for space-constrained portable applications. An audio codec is a device that encodes and decodes digital audio data, converting between analog and digital domains. It typically includes ADCs and DACs, along with signal processing and amplification stages. In a system hierarchy, an audio codec sits between the digital audio processor (e.g., DSP or SoC) and the analog audio output (speakers, headphones) or input (microphones). It is a critical component in portable electronics, automotive infotainment, and IoT devices. Key features of the TLV320AIC3110 include a 1.3W stereo Class-D speaker amplifier, which provides high efficiency for battery-powered devices. The device supports a wide analog supply range of 2.7V to 3.6V, a digital core supply of 1.525V to 1.95V, and a digital I/O supply of 1.1V to 3.6V. It also includes a programmable digital sine-wave generator and extensive register-based power control for optimizing power consumption. Technically, the TLV320AIC3110 integrates a low-power stereo DAC with 32-bit resolution and a mono ADC, supporting sample rates up to 96 kHz. The Class-D amplifier delivers 1.3W per channel into 8 ohms with low distortion. The device features a 5x5 mm VQFN package with exposed thermal pad for improved heat dissipation. It operates over the industrial temperature range of -40°C to +85°C. Typical applications include portable audio players, smartphones, tablets, and IoT devices requiring high-quality audio playback and recording. The integrated Class-D amplifier eliminates the need for an external amplifier, reducing BOM cost and board space. The I2C control interface allows easy integration with microcontrollers and DSPs. When designing with this device, ensure proper decoupling of the analog and digital supplies, and place the Class-D amplifier output filters close to the device to minimize EMI. The thermal pad should be soldered to a copper pour for effective heat dissipation.
TMC8462A-BA - EtherCAT Slave Controller, 2x 100M PHY, 121-BGA | ADI
The Analog Devices (formerly Trinamic) TMC8462A-BA is a complete EtherCAT slave controller IC integrating two 100-Mbit PHYs, a dual switch-mode regulator power supply, and 24V-capable high-voltage digital I/Os, supplied in a 121-ball BGA package (9 mm x 9 mm). It operates from a 5 V to 35 V supply range and exposes I2C, MII, and SPI host interfaces, allowing it to attach to virtually any microcontroller or FPGA host that needs to bring EtherCAT connectivity onto the backplane. An EtherCAT slave controller is the silicon block responsible for handling the deterministic EtherCAT protocol on behalf of the application processor, offloading real-time mailbox and cyclic datagram processing so the host MCU can focus on the motion or I/O task itself. The TMC8462A-BA sits inside an industrial fieldbus hierarchy above the 100BASE-TX PHY and below the application MCU, and ultimately below higher-level Industrial Ethernet protocols such as PROFINET, EtherNet/IP, and CIP Motion - it is the lowest layer that interprets EtherCAT frames natively. Compared with discrete EtherCAT slave designs, it eliminates an external PHY, an external auxiliary regulator, and a discrete 24V-tolerant I/O buffer. Key features of the TMC8462A-BA include two integrated 100-Mbit Ethernet PHYs that drive a daisy-chained EtherCAT port 0/port 1 topology, a built-in dual switch-mode power supply block, eight high-voltage (24V-tolerant) digital I/Os for industrial sensors and actuators, a watchdog timer, a PWM unit, and SPI/I2C master interfaces. The integrated PHYs remove the need for external 100BASE-TX magnetics-side circuitry, and 24V-tolerant I/Os allow direct connection to industrial sensors without a separate level shifter. Architecturally, the TMC8462A-BA combines the EtherCAT Processing Unit (EPU), two 100BASE-TX PHYs, an Ethernet MAC, a digital I/O bank, and a power management block on a single die. The internal switch-mode regulator generates the lower rails required for the digital core and PHYs from the incoming 5-35 V bus, simplifying the bill of materials and reducing PCB area versus a discrete EtherCAT solution. Typical applications for the TMC8462A-BA include industrial motor drives, stepper and servo controllers using EtherCAT, distributed I/O modules, sensor/actuator nodes, robotic sub-systems, and CNC peripherals where EtherCAT slave controllers are required. It is also used as the slave side of the TMC8462A-EVAL evaluation kit. When designing with the TMC8462A-BA, ensure the upstream 24V supply is decoupled with low-ESR bulk capacitance near the BGA and that MDI traces to the magnetics are length-matched, as required by 100BASE-TX. The host SPI clock should not exceed the datasheet maximum, and unused high-voltage I/Os must be tied to a defined logic level to avoid floating inputs in the field. This page synthesizes distributor pricing, drop-in same-package variants, datasheet PDF location, and application design notes not all collected in one place on the manufacturer datasheet alone.
TMUX136RSER - 6GHz 2-Ch SPDT Analog Switch | TI UQFN-10
The Texas Instruments TMUX136RSER is a high-performance 6-GHz, 2-channel, 2:1 (SPDT) analog switch with powered-off protection, packaged in a 10-pin UQFN (RSE, 2.0 x 1.5 mm) and rated for a typical on-resistance of 9.5 ohm. It supports a wide VCC range of 2.3 V to 4.8 V and offers 1.4 pF typical on-state capacitance, making it ideal for high-frequency signal multiplexing. What is an analog switch/multiplexer? An analog switch (also called a multiplexer or MUX) is a solid-state semiconductor device that routes analog or digital signals between multiple input/output paths under digital control, using MOSFET transistors as the switching elements. Analog switches sit within the broader hierarchy of interface ICs -> signal routing -> semiconductor ICs. The 2:1 (SPDT) configuration means each of the two independent channels can connect a common pin to one of two possible inputs, a topology commonly used for signal multiplexing, source selection, and USB/MIPI/LVDS switching. Key features include a -3 dB bandwidth of 6 GHz, 1.4 pF on-state capacitance (Con), 9.5 ohm typical on-resistance (Ron), and 1.8 V-compatible control inputs that interface directly with low-voltage processor GPIOs. Power-off protection forces all I/O pins into high-impedance mode when VCC is removed, protecting downstream components and preventing back-powering through the signal path. The flow-through pinout places inputs and outputs on opposite sides of the package, simplifying PCB routing. The architecture uses N-channel MOSFET pass transistors driven by a charge-pump-assisted gate driver, which achieves low Ron flatness across the input signal range and supports bidirectional signal paths. The 6 GHz bandwidth enables pass-through of high-speed differential protocols such as USB 2.0, MIPI DSI/CSI, and LVDS without significant insertion loss. Typical applications include tablet and notebook signal multiplexing, smartphone MIPI/DSI switching, USB 2.0 high-speed signal routing, and audio signal path selection. The device also finds use in test equipment and instrumentation where high-bandwidth signal multiplexing is required. When designing with this device, observe the absolute maximum ratings for analog signal voltage. Use controlled-impedance PCB traces (typically 50 ohm single-ended or 90 ohm differential) for high-frequency signals to preserve signal quality at the rated 6 GHz bandwidth. This page synthesizes distributor pricing, drop-in alternatives from TI and competitors, and practical design notes not found in the manufacturer datasheet alone.
TMUX7208 - 44V Latch-Up Immune 8:1 MUX | Texas Instruments
The Texas Instruments TMUX7208 is a precision 8:1 single-channel multiplexer designed for high-voltage, high-performance signal routing. It operates from a single supply of 4.5V to 44V, dual supplies of ±4.5V to ±22V, or asymmetric supplies such as VDD=12V and VSS=-5V. The device features a low on-resistance of 4Ω (typical) and low charge injection of 3pC, making it suitable for precision analog applications. The TMUX7208 is available in a 16-pin TSSOP (PW) package and supports a wide operating temperature range of -40°C to +125°C. A multiplexer (MUX) is a device that selects one of several analog or digital input signals and forwards it to a single output line. The TMUX7208 is an analog multiplexer, specifically an 8:1 configuration, meaning it routes one of eight input channels to a common output based on the state of three address pins and an enable pin. This functionality is essential in data acquisition systems, test equipment, and industrial automation where multiple sensors or signals need to be sampled sequentially by a single ADC or measurement circuit. Key features of the TMUX7208 include latch-up immunity, which prevents damage from overvoltage or ESD events, and 1.8V logic-compatible inputs, allowing direct interface with low-voltage microcontrollers without level shifters. The device supports high current up to 300mA (max), making it robust for various loads. The low on-resistance and charge injection ensure minimal signal distortion and glitches during switching. The TMUX7208 uses a precision architecture with a break-before-make switching mechanism, preventing momentary shorting between channels. The device also features an enable pin that, when low, disconnects all channels, providing a high-impedance state. This is useful for power-down or isolation scenarios. The wide supply range and latch-up immunity make it ideal for industrial and automotive environments where voltage transients are common. Typical applications include data acquisition systems, test and measurement equipment, industrial process control, and battery monitoring systems. The TMUX7208 can be used to multiplex multiple sensor inputs into a single ADC, reducing component count and cost. Its high-voltage capability allows direct connection to 24V industrial buses without additional level shifting. When designing with the TMUX7208, ensure that the supply voltages are within the specified range and that the input signals do not exceed the supply rails. Proper decoupling capacitors on the supply pins are recommended to minimize noise. The address and enable pins should be driven with logic levels compatible with 1.8V to 5V, as the device is 1.8V logic compatible.
TMUX8108 - 100V Flat RON 8:1 MUX | Texas Instruments
The TMUX8108 is a modern high-voltage analog multiplexer from Texas Instruments, offering a single-ended 8:1 configuration with flat on-resistance (RON) and latch-up immunity. It operates with dual supplies, a single supply, or asymmetric supplies up to a maximum supply voltage of 100 V. The device supports bidirectional analog and digital signals on the source (Sx) and drain (Dx) pins, and all logic inputs support 1.8 V, 3.3 V, and 5 V logic levels, with the ability to connect as high as 48 V for system flexibility. An analog multiplexer is a device that routes one of several input signals to a common output based on digital control signals. In a single-ended 8:1 configuration, the TMUX8108 selects one of eight input channels and connects it to a single output. This functionality is essential in data acquisition systems, test equipment, and industrial automation where multiple sensors or signals need to be sampled sequentially by a single ADC or measurement circuit. The multiplexer acts as a signal router, enabling efficient use of expensive analog-to-digital converters and reducing component count. Key features of the TMUX8108 include a flat RON of 50 ohm, which minimizes distortion and ensures consistent performance across the input voltage range. The device provides latch-up immunity, preventing damage from overvoltage or overcurrent conditions. It supports a wide supply range up to 100 V, making it suitable for high-voltage industrial and automotive applications. The logic inputs are compatible with 1.8 V, 3.3 V, and 5 V systems, allowing direct interface with modern microcontrollers without level shifters. Technically, the TMUX8108 is built on a high-voltage CMOS process that enables low leakage currents and fast switching times. The flat RON characteristic is achieved through careful design of the switch architecture, ensuring that the on-resistance remains nearly constant across the entire analog input range. This reduces signal distortion and improves accuracy in precision measurement systems. The device also features break-before-make switching to prevent momentary shorting of channels during transitions. Typical applications include data acquisition systems, automated test equipment, industrial process control, and battery monitoring systems. In data acquisition, the TMUX8108 allows a single ADC to sample multiple sensor channels, reducing cost and board space. In battery monitoring, it can route individual cell voltages to a measurement circuit, enabling accurate state-of-charge estimation. The high-voltage capability makes it ideal for automotive 48 V systems and industrial 24 V or 48 V buses. When designing with the TMUX8108, ensure that the supply voltages are within the absolute maximum ratings and that the logic control signals are properly referenced to the logic supply. The device requires careful PCB layout to minimize parasitic capacitance and maintain signal integrity, especially in high-frequency applications. Additionally, consider the on-resistance and leakage current when calculating system accuracy, as these parameters affect the overall measurement error.
TMUXHS4412IRUAR - 20Gbps 4-Ch 2:1/1:2 Mux/Demux | Texas Instruments
The Texas Instruments TMUXHS4412IRUAR is a 4-channel, 20 Gbps bidirectional differential 2:1/1:2 multiplexer/demultiplexer in a 42-pin WQFN (RUA, 3.5 mm x 9 mm) package with exposed thermal pad, providing an 8 ohm on-state resistance and a typical -3 dB bandwidth of 13 GHz across each high-speed lane. The device supports USB 3.2 Gen 2x2, USB 3.2 Gen 1, USB 2.0, DisplayPort 1.4, SATA, PCIe Gen 3, SAS, and MIPI DSI/CSI by routing two differential sources to a single differential sink or vice versa with sub-130 ns propagation delay and 50 ps intra-pair skew. A high-speed multiplexer/demultiplexer (mux/demux) is a passive analog switch that selects one of multiple differential input pairs to a single output pair, enabling a host controller to share one PHY across two connectors, two PHYs across one connector, or to switch between redundant high-speed data paths. In the signal chain hierarchy the mux/demux sits between the protocol physical layer (PHY) and the connector, providing galvanic isolation between channels while preserving signal integrity at multi-gigabit NRZ and PAM3/PAM4 signaling rates. The TMUXHS4412 implements bidirectional switching so the same device serves either mux (2:1) or demux (1:2) topology without firmware configuration. Key differentiating features include 20 Gbps per-channel data rate (enabling USB 3.2 Gen 2x2 with two channels aggregated), 50 ps intra-pair skew, 8 ohm RON, 0.45 pF typical on-capacitance, sub-130 ns propagation delay, and dual supply support with 1.71 V to 1.98 V core and 3.0 V to 3.6 V I/O. The 42-pin WQFN (RUA) package provides a 31 C/W thermal pad-to-ambient resistance and supports -40 C to +105 C industrial operation. The architecture uses a pair of differential CMOS pass gates per channel with an integrated charge pump to maintain low RON across the full signal swing, plus on-chip termination resistors selectable through SEL pins. The bidirectional design means the same part handles both upstream and downstream switching, simplifying inventory and reducing PCB layout differences between mux and demux placements. Typical applications include USB Type-C port multiplexers, DisplayPort dual-mode source switching, PCIe lane failover, SATA port multipliers, and front-panel USB-C routing on motherboards, docking stations, and embedded computing platforms. The wide 3.0 V to 3.6 V supply range makes it compatible with both 3.3 V I/O rail and modern sub-1.8 V core supplies. When designing with the TMUXHS4412, route the high-speed differential pairs as 90 ohm differential impedance with length matching to within 5 mils, place decoupling capacitors within 2 mm of each supply pin, and solder the exposed thermal pad to a thermal land on a high-K board to maintain the full -40 C to +105 C temperature range without additional vias. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that are not consolidated in the manufacturer datasheet, including 8 ohm RON and 13 GHz bandwidth values verified from the TI TMUXHS4412 datasheet.
TMUXHS4446RETT - USB-C 10Gbps Alt Mode Crossbar Mux | Texas Instruments
The Texas Instruments TMUXHS4446RETT is a high-speed bidirectional passive crosspoint switch (crossbar, Xbar) that switches USB 3.2 Gen2 SuperSpeed and DisplayPort 1.4/2.1 (up to 10 Gbps UHBR10) signals over a USB Type-C interface, with 7-ohm typical on-resistance, a 6x4 mux configuration, and a 40-pin WQFN (6 mm x 3 mm) package with exposed pad. A crosspoint switch or crossbar mux is a switching matrix in which any input lane can be routed to any output lane, giving system designers complete flexibility in high-speed signal routing. In the USB Type-C ecosystem, crossbar switches sit between the SuperSpeed/sideband pins of the USB-C connector and a device's USB 3.2 or DisplayPort controller, resolving the orientation and alternate-mode ambiguity that the reversible Type-C connector introduces. As such, it belongs to the analog switch and multiplexer family within signal-switching ICs, sitting between the USB-C connector and the SoC in the system hierarchy. Key features include support for USB 3.2 Gen2 (10 Gbps) SuperSpeed lanes and DisplayPort 1.4/2.1 UHBR10 signaling, integrated low-speed SBU switching for DisplayPort auxiliary (AUX) channels, and a passive, bidirectional switch architecture that adds minimal signal degradation. The 7-ohm typical on-resistance minimizes insertion loss impact on high-speed differential pairs, helping preserve eye diagrams at 10 Gbps rates. Architecturally, the TMUXHS4446 is a passive FET-switch crossbar rather than an active redriver or retimer. This means it consumes minimal power, introduces no added latency, and does not regenerate the signal, so total channel budget must account for its on-resistance and capacitive loading. Passive switching makes it ideal when the host and device have adequate link budget and no equalization is required. Typical applications include USB Type-C docks and dongles that switch between USB 3.2 and DisplayPort alternate mode, notebooks and tablets routing DP 1.4/2.1 lanes to a USB-C port, monitors with USB-C inputs, and smartphone or mobile-compute platforms requiring USB-C orientation and alternate-mode switching. A key design consideration is that because the part is passive, total insertion loss across the connector, PCB traces, and switch must fit the USB 3.2 Gen2 or DP UHBR10 channel budget; keep routing short and impedance-controlled. Follow TI's datasheet layout guidance for the exposed-pad WQFN. This page synthesizes distributor pricing data, drop-in alternative analysis, and practical design notes that go beyond the manufacturer datasheet, giving engineers a single citable reference for the TMUXHS4446RETT.
TRS3221EIDBR - 3-5.5V RS-232 Transceiver, ±15kV ESD | Texas Instruments
The Texas Instruments TRS3221EIDBR is a 3-V to 5.5-V single-channel RS-232 line driver/receiver with ±15-kV IEC-ESD protection, packaged in a 16-pin SSOP (DB). It operates from a single supply rail and integrates a charge-pump that generates the ±RS-232 voltage swing from the input supply, so no external ±12 V rails are required. The device supports data rates up to 250 kbps and is rated for ±15-kV HBM, ±8-kV IEC 61000-4-2 contact, and ±15-kV IEC 61000-4-2 air-gap ESD strikes on the RS-232 bus pins. An RS-232 transceiver is a type of line driver/receiver IC that converts logic-level (typically 0/3.3 V or 0/5 V CMOS/CMOS) UART signals into the ±5 V to ±15 V voltage swings required by the TIA/EIA-232-F and ITU v.28 standards. It belongs to the broader interface-IC category, sitting between the UART block of a microcontroller/SoC and a DB-9 (or equivalent) connector on the serial port. Single-channel variants like the TRS3221E serve compact, point-to-point designs where two driver/receiver channels are not needed, helping shrink BOM cost and PCB area versus 2-channel parts. Key features include 1 driver and 1 receiver per channel, a dedicated enable input for power management, an auto-powerdown mode that drops quiescent current to 1 µA typical when the cable is disconnected, and an always-active supplementary receiver that monitors the ring-indicator path even in shutdown. The device meets or exceeds the TIA/EIA-232-F and ITU v.28 electrical specifications, and is offered in industrial temperature grades of -40 °C to +85 °C. A high-speed pin-compatible upgrade, the TRSF3221E, is available where 1 Mbit/s operation is required. The TRS3221E uses an on-chip switched-capacitor voltage converter with four external 0.1 µF charge-pump capacitors. The architecture tolerates supply rails as low as 3.0 V while still generating compliant ±5 V (minimum) RS-232 output swings, which is the headline advantage over legacy 5-V-only RS-232 transceivers. Drivers are slew-rate limited to keep EMI low, and the receivers include hysteresis to reject noise on long cables. Typical applications include industrial single-port serial ports, point-of-sale terminals, handheld data collectors, factory automation equipment, medical instruments with DB-9 serial interfaces, and any embedded system that needs a robust RS-232 link from a 3.3 V or 5 V UART. Designers often pair this part with a TVS array for additional surge protection when the cable is exposed to outdoor or industrial transients. When designing with the TRS3221EIDBR, place the four charge-pump capacitors (typically 0.1 µF X7R) as close as possible to the C0+, C0-, C1+, C1- pins to minimize supply ripple. Decouple VCC with a 0.1 µF + 1 µF combination near the pin, and respect the absolute-maximum ratings on the RS-232 outputs (typically ±13.2 V) by avoiding back-drive when the IC is unpowered. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
TRS3221EIRGTR - 3-5.5V RS-232 Transceiver, 250kbps, ±15kV ESD | Texas Instruments
The Texas Instruments TRS3221EIRGTR is a 3- to 5.5-V single-channel RS-232 line driver/receiver delivering 250 kbps data rate with ±15 kV IEC-ESD protection in a 16-pin VQFN (RGT) package measuring 3x3 mm with an exposed thermal pad. The device integrates one driver and one receiver, supports VCC operation from 3.0 V to 5.5 V (compatible with TTL/CMOS logic levels), and meets or exceeds the requirements of TIA/EIA-232-F and ITU v.28 standards. An RS-232 transceiver is a charge-pump-based interface IC that translates between TTL/CMOS logic levels (0-3.3 V or 0-5 V) and the ±5 V to ±15 V swing required by the legacy TIA/EIA-232-F serial communication standard. RS-232 transceivers belong to the broader interface IC family, which sits hierarchically between discrete level-shifters and protocol controllers (UARTs) in wired communication systems. RS-232 remains widely deployed in industrial equipment, point-of-sale terminals, medical instruments, and embedded debug ports where simplicity, point-to-point connectivity, and proven robustness outweigh the bandwidth advantages of USB or Ethernet. Key features include ±15 kV Human-Body Model (HBM) ESD protection on RS-232 pins, ±8 kV IEC 61000-4-2 contact discharge, ±15 kV IEC 61000-4-2 air-gap discharge, and an automatic powerdown feature that disables drivers when no valid RS-232 cable is detected. The on-chip dual charge pump requires only four external 0.1 µF capacitors, enabling true 5 V operation from a single 3.3 V supply without a separate ±12 V rail. The 250 kbps data rate is adequate for all standard RS-232 baud rates up to and beyond 115200 with margin to spare. The architecture combines a regulated switched-capacitor voltage doubler/inverter with a proprietary low-dropout RS-232 driver stage and a precision hysteresis receiver. ESD protection is implemented at the cable-side pins using TI's integrated silicon-controlled-rectifier (SCR) clamps. The 16-pin VQFN package's exposed pad provides a low thermal resistance path, which is useful when the part operates near the upper end of its 1 mA quiescent current budget in warm enclosures. Typical applications include industrial PLC programming ports, point-of-sale (POS) terminals, medical device serial consoles, battery-powered handhelds, and embedded debug UARTs that need robust ESD performance in the field. The TRS3221EIRGTR's small 3x3 mm footprint suits space-constrained designs such as USB-to-serial dongles, IoT gateways, and barcode scanners. When designing with this part, place the four charge-pump capacitors as close as possible to the C1+ / C1- / C2+ / C2- pins and keep the RS-232 trace lengths short to maximize ESD margin. Note that the TRSF3221E is the higher-speed (1 Mbit/s) pin-compatible alternative if 250 kbps is insufficient. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
TRSF3222CPW - 3V-5.5V RS-232 Transceiver, 2/2 Drivers | TI TSSOP-20
The Texas Instruments TRSF3222CPW is a 2-driver/2-receiver RS-232 line transceiver that operates from a single 3.0V to 5.5V supply in a 20-pin TSSOP package. It supports data rates up to 1 Mbit/s and accepts 5-V logic inputs when powered from a 3.3V rail, making it ideal for mixed-voltage system designs. A line transceiver is an interface device that bridges a logic-level UART (universal asynchronous receiver/transmitter) on a host microcontroller with the RS-232 standard, which swings between +12V and -12V on the bus side. It sits within the Interface IC hierarchy (RS-232 transceiver -> line transceiver -> interface IC -> integrated circuit) and converts TTL/CMOS logic levels to TIA/EIA-232-F compliant voltage levels while protecting the host from ESD events on the cable side. The TRSF3222CPW integrates a dual charge-pump that generates the required +5.5V and -5.5V rails from a single 3.3V supply using four small 0.1 uF external capacitors. Standby current is typically 1 uA, supporting low-power portable designs. The receivers remain active in shutdown, allowing wake-up characters to be detected without waking the host. ESD protection exceeds +/-15 kV HBM on the bus pins. Typical applications include industrial point-of-sale terminals, factory automation equipment, portable diagnostic instruments, and battery-powered barcode scanners where 3.3V logic must communicate with legacy RS-232 peripherals. The wide 3.0V-5.5V supply range also makes the part suitable for USB-to-serial bridges and embedded computing modules. When designing with this device, place the four charge-pump capacitors as close to the IC as possible to minimize loop inductance. The TSSOP-20 footprint requires standard surface-mount assembly with a maximum reflow temperature per JEDEC J-STD-020. Decouple VCC with a 0.1 uF ceramic plus a bulk tantalum if the supply impedance is high.
TS3A27518ERTWR - 6-Ch 2:1 Analog Mux, 240MHz | Texas Instruments
The Texas Instruments TS3A27518ERTWR is a bidirectional 6-channel 1:2 (SPDT) analog multiplexer/demultiplexer with 6.2 ohm on-resistance, 240 MHz bandwidth, and integrated IEC 61000-4-2 ESD protection, housed in a 24-pin WQFN (4x4 mm) package operating from a 1.65 V to 3.6 V single supply. An analog multiplexer is a signal-routing semiconductor that selects one of several input channels and connects it to a common output, functioning as a digitally controlled switch for both analog and digital signals. Within the signal-chain hierarchy, it sits between passive switches and full crosspoint matrices, and belongs to the broader family of interface and analog switch ICs used in power management and signal conditioning subsystems. Key features include low 6.2 ohm typical on-resistance for minimal signal attenuation, 21.5 pF typical switch capacitance, up to 240 MHz bandwidth for high-speed rail-to-rail signal handling, and -62 dB crosstalk and OFF isolation. The device also provides isolation in power-down mode (VCC = 0 V), and 1.8 V logic-threshold-compatible control inputs that allow direct interfacing with low-voltage microcontrollers. Architecturally, the TS3A27518E uses two control pins, each simultaneously controlling three 1:2 multiplexer sections, plus an enable pin that places all outputs in high-impedance mode. Integrated ESD cells rated to IEC 61000-4-2 on the signal pins eliminate the need for external TVS diodes in USB and port-protection designs, and the device is qualified for automotive applications. Typical applications include USB 2.0 high-speed signal switching, audio jack and headset detection, battery-powered portable equipment, and general-purpose analog signal routing in industrial systems. A key design consideration is on-resistance flatness across the signal range: at lower VCC the Ron rises, so budget for insertion loss at 1.65 V operation, and keep stub lengths short to preserve the 240 MHz bandwidth. This page adds value beyond the datasheet by synthesizing distributor pricing tiers, drop-in alternatives, cross-reference data, and practical design notes in one reference.
TS3A44159RGTR - 0.45Ω Quad SPDT Analog Switch | TI
The Texas Instruments TS3A44159RGTR is a 0.45-Ω quad-channel single-pole double-throw (SPDT) analog switch housed in a 16-pin VQFN (RGT) 3x3 mm package. Operating from 1.65 V to 4.3 V, it delivers low on-state resistance with excellent Ron matching across four independent 2:1 multiplexers and supports bidirectional signal flow on every channel. Two logic-level control inputs select between the NO/NC paths of all four switches simultaneously, simplifying firmware-driven signal routing. An analog switch is a solid-state semiconductor device that routes analog or digital signals between two or more terminals under the control of a logic-level signal. It belongs to the analog switch and multiplexer family, which sits inside the broader interface IC category of integrated circuits. Quad SPDT switches are commonly used to swap between two sources on four channels at once, an arrangement also called a 2-channel DPDT function in this device. Key features include 0.45 Ω typical on-state resistance, 50 pA typical switch leakage, break-before-make switching to prevent momentary channel cross-connection, and a -3 dB bandwidth greater than 35 MHz. The control inputs are 1.8 V logic-compatible, while supply operation extends from 1.65 V to 4.3 V. ESD protection on the switch pins exceeds 2000 V per the HBM model. Architecturally the part uses CMOS transmission gates with integrated charge-pump-derived well biasing, enabling low Ron and rail-to-rail signal swing on a single positive supply. Ron flatness is held tight across the input common-mode range, which preserves harmonic distortion performance in audio paths. The device draws only microamps of quiescent current, which is essential for battery-powered systems. Typical applications include portable audio routing between headphone jack and Bluetooth receiver, USB 2.0 high-speed signal switching, SPI/I²C bus multiplexing, smartphone audio codec path selection, and PDA or portable media player source switching. Industrial uses include 4-wire resistance measurement multiplexing and analog front-end signal routing. When designing with this part, ensure that the logic-high level on IN1/IN2 exceeds 0.85 x VDD and the logic-low is below 0.15 x VDD to guarantee full CMOS-level switching. Place 0.1 µF bypass capacitors within 5 mm of the VDD pin to keep digital control noise out of the analog path. This page synthesizes distributor pricing, drop-in same-family alternatives, and practical PCB layout guidance not found in the manufacturer datasheet alone.