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Produtos (39.000+)

MAX3095CSE+T - 10Mbps Quad RS-422/RS-485 Receiver | Analog Devices
MAX3095CSE+T

MAX3095CSE+T - 10Mbps Quad RS-422/RS-485 Receiver | Analog Devices

The Analog Devices MAX3095CSE+T is a low-power quad RS-422/RS-485 receiver supporting data rates up to 10Mbps, operation from 3V/5V, and electrostatic-discharge protection rated to ±15kV on every receiver input. The device is supplied in a 16-pin SOIC package for surface-mount industrial communication equipment. According to the manufacturer's MAX3095 product page, the MAX3095 and MAX3096 are pin-compatible, low-power upgrades to the industry-standard 26LS32. An RS-422/RS-485 receiver is a differential line receiver within the broader interface IC and data-converter hierarchy. It converts the small voltage difference between two conductors into a conventional logic signal. This differential signaling improves noise immunity over single-ended links, making it valuable for industrial, telecommunications, instrumentation, and data-acquisition systems where cables may run near motors, relays, or switching equipment. The MAX3095 integrates four receivers into one package. Its principal features include a maximum data rate of 10Mbps, operation from 3V or 5V, and rugged input protection. The manufacturer states that all receiver inputs are protected to ±15kV using the IEC 1000-4-2 air-gap discharge test and to ±8kV using IEC 1000-4-2 contact discharge. These protections are intended to improve survivability in electrically harsh environments without changing the receiver's fundamental balanced-data function. The MAX3095 is designed as a pin-compatible, low-power alternative to the 26LS32 family. Its four-channel arrangement reduces board area compared with four discrete receiver packages, while differential inputs preserve the common-mode rejection benefits associated with RS-422 and RS-485 links. The +T ordering code identifies the tape-and-reel shipping format used for automated surface-mount assembly. Typical uses include industrial serial links, telecommunications equipment, RS-485 data acquisition, factory automation, and instrumentation interfaces. Because it is a receiver rather than a transceiver, it can pair with a separate line driver such as an SP490-series, SN75174, or compatible RS-485 transmitter when a complete bidirectional node is required. Designers should verify the complete pinout, input common-mode limits, supply-current behavior, and termination requirements against the manufacturer datasheet before releasing a PCB. Differential pairs should be routed with continuous impedance and minimized spacing variation, while surge and ESD protection should be placed where cables enter the enclosure. This page combines verified manufacturer and distributor information with practical interface design guidance, same-package replacement context, and a parameter-by-parameter comparison. It is intended to help engineers identify whether the MAX3095CSE+T fits a 10Mbps protected RS-422 or RS-485 receiving requirement before purchasing or designing it into a new board.

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MAX3095EEE+ - 10Mbps Quad RS-422/RS-485 Receiver | Maxim
MAX3095EEE+

MAX3095EEE+ - 10Mbps Quad RS-422/RS-485 Receiver | Maxim

The Maxim Integrated MAX3095EEE+ is a quad RS-422/RS-485 differential line receiver IC delivering 10 Mbps data rates with ±15 kV ESD protection on every receiver input, packaged in a 16-pin QSOP (0.154" / 3.90 mm wide) surface-mount package. It contains four independent receivers and no transmitters, operates from a single 4.75 V to 5.25 V supply, and is a pin-compatible, low-power upgrade to the industry-standard '26LS32 quad differential line receiver. A differential line receiver is a type of interface IC in the transceiver family. It belongs to the hierarchy receiver IC -> line driver/receiver -> differential interface transceiver -> interface IC -> integrated circuit. Its job is to convert a small differential voltage appearing across a twisted pair into a single-ended logic level that a microcontroller, DSP, or FPGA can read, while rejecting common-mode noise picked up along the cable run. Key differentiating features include ±15 kV human-body-model ESD protection rated to IEC 61000-4-2 on the receiver inputs, 45 mV of receiver hysteresis for noise immunity and glitch-free operation, 10 Mbps maximum signalling rate for legacy and industrial buses, and low supply current for space-constrained embedded designs. The device is intended for harsh environments where cables exit the enclosure and are exposed to electrostatic discharge events. Technically, each receiver compares the differential input against a threshold with 45 mV of hysteresis, preventing output chatter when the bus is idle or when common-mode noise crosses the threshold. Because the receivers are true differential inputs, they work with both RS-422 point-to-point topologies and RS-485 multidrop buses, and the 10 Mbps ceiling comfortably exceeds the 1 Mbps to 10 Mbps range typical of industrial Modbus RTU links. Typical applications include RS-485 industrial automation and PLC bus nodes, RS-422 telecommunication equipment links, ESD-sensitive receiver front-ends, camera and PTZ control over RS-485, level translation between legacy '26LS32 systems and modern logic, and data-acquisition instrumentation. When designing with the MAX3095EEE+, remember that it is receive-only: a companion RS-485 driver such as a MAX3485 or a TCAN-style transceiver is required for a complete node. Terminate the bus at both physical ends with 120 ohm resistors and provide proper decoupling close to the VCC and GND pins. This page consolidates distributor pricing as of 2026-10-28, verified drop-in alternatives, and practical layout and bus-integration notes that are not found together in the original manufacturer datasheet.

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MAX3095EPE+ - 10Mbps Quad RS-422/485 Receiver | ADI
MAX3095EPE+

MAX3095EPE+ - 10Mbps Quad RS-422/485 Receiver | ADI

Analog Devices MAX3095EPE+ is a quad RS-422/RS-485 receiver supporting data rates up to 10Mbps, operating from 3V/5V supplies and providing ±15kV ESD protection in a 16-pin PDIP package. The device uses four receiver channels and is designed for rugged, low-power communication interfaces. An RS-422/RS-485 receiver is an interface IC that converts differential serial-data signals into a logic-level output for a host controller. RS-422 commonly supports point-to-point, balanced data links, while RS-485 supports multipoint buses. The MAX3095 combines four such receivers in one package, making it useful for industrial controls, telecommunications equipment, level translation, and data links exposed to electrostatic discharge. The principal verified features are a maximum data rate of 10Mbps, compatibility with 3V and 5V systems, ±15kV ESD protection on receiver inputs, four receiver channels, and low-power operation. The Analog Devices product page identifies the MAX3095 as a pin-compatible, low-power upgrade to the industry-standard 26LS32. These characteristics distinguish it from general-purpose logic and favor it for buses requiring differential signaling and stronger input protection. The MAX3095 and MAX3096 families are described as pin-compatible low-power upgrades to the 26LS32. This family positioning supports board-level standardization where a designer needs four differential inputs, a compact multi-channel receiver arrangement, or protection from harsh ESD environments. Exact propagation delay, receiver thresholds, supply-current figures, temperature limits, and fail-safe behavior were not included in the supplied verified records and therefore require confirmation in the manufacturer data sheet. Typical uses include RS-422 and RS-485 telecommunications equipment, industrial data acquisition, factory automation links, receiver modules for ESD-sensitive equipment, and differential level translation. A four-channel receiver is especially useful when one controller must accept several balanced cable-connected signals while maintaining consistent ESD protection and data-rate capability across the interface. A key design consideration is PCB footprint. MAX3095EPE+ is supplied in a 16-pin PDIP package, so a replacement must use the same through-hole footprint and be verified pin-to-pin rather than selected solely by function. Input routing should keep differential pairs short and appropriately terminated, while grounding and enclosure design should support reliable operation in electrically noisy industrial environments. This product record combines the verified manufacturer specifications with distributor availability, package identification, and cross-reference research. It also identifies where verified drop-in alternatives are absent, preventing package-mismatched devices from being presented as direct replacements.

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MAX3095ESE+ - 10Mbps Quad RS-422/RS-485 Receiver | Analog Devices
MAX3095ESE+

MAX3095ESE+ - 10Mbps Quad RS-422/RS-485 Receiver | Analog Devices

The Analog Devices MAX3095ESE+ is a ±15kV ESD-protected, 10Mbps, 3V/5V quad RS-422/RS-485 receiver IC in a 16-pin SOIC package. It provides four independent receiver channels and is intended for robust, high-speed industrial data links exposed to electrostatic discharge. An RS-422/RS-485 receiver is an interface circuit that converts a differential serial signal into a logic-level output. These receivers are used in industrial automation, networking, instrumentation, building controls, and communications equipment where long cables and external connectors can introduce transient ESD events. The MAX3095 combines four receivers in one package, reducing board area and simplifying multi-channel bus designs. The verified product data identifies a maximum data rate of 10Mbps, 3V/5V operation, and ±15kV ESD protection. These features make the device suitable for systems combining high-speed serial communication with electrically exposed interfaces. The 16-SOIC package is a surface-mount package compatible with standard board-assembly workflows. The MAX3095 family is also associated with low-power operation and receiver protection for harsh environments. Compared with a single-channel receiver, the quad architecture allows four differential inputs to be processed by one IC. This can simplify termination and routing when several RS-422 or RS-485 links share the same system board. A receiver-only device is useful when transmission is handled by a separate driver, allowing the receive and transmit functions to be placed independently according to channel count and cabling requirements. Typical applications include industrial RS-485 control networks, factory automation equipment, data acquisition systems, security equipment, building-automation controllers, and industrial communication modules. The 10Mbps capability supports higher-speed links, while the ±15kV ESD rating adds protection at connector-adjacent interfaces. Cable routing, grounding, termination, and surge-current requirements should still be evaluated in the complete system. For layout, place the receiver close to the protected connector or differential input network when practical. Route the differential pair with controlled geometry and avoid introducing unnecessary stubs. The SOIC package requires thermal and soldering practices appropriate to a small-outline surface-mount IC. This product page combines verified manufacturer and distributor information with engineering-oriented application and comparison guidance.

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MAX3095ESE+T - 10Mbps Quad RS-422/RS-485 Receiver | Analog Devices
MAX3095ESE+T

MAX3095ESE+T - 10Mbps Quad RS-422/RS-485 Receiver | Analog Devices

The Analog Devices MAX3095ESE+T is a rugged, low-power, quad RS-422/RS-485 receiver with electrostatic discharge protection, a maximum data rate of 10Mbps, and operation from 3V or 5V supplies in a 16-pin SOIC package. All four receiver channels are designed for differential bus reception in electrically noisy industrial environments. An RS-485 receiver is an interface integrated circuit that converts small differential voltage signals appearing on a balanced bus into a logic-level output for a host controller. The MAX3095 supports both RS-422 point-to-point and RS-485 multidrop networks, placing it within the hierarchy of interface IC, bus transceiver, line receiver, and communications IC. Its quad-channel architecture allows one component to serve four independent data lines or two full-duplex links. Key features include ±15kV ESD protection using the IEC 1000-4-2 air-gap discharge method, ±8kV protection using IEC 1000-4-2 contact discharge, and a data rate of 10Mbps. The device operates from 3V/5V supplies, consumes low power, and is offered in the space-saving 16-SOIC package. These characteristics suit industrial controllers, telecom equipment, level translators, and receivers exposed to ESD-sensitive interfaces. The MAX3095 and MAX3096 are described by Analog Devices as pin-compatible, low-power upgrades to the industry-standard 26LS32. Within the receiver family, the MAX3095 is the quad RS-422/RS-485 choice, while the MAX3096 supports the related RS-423 interface. The MAX3095ESE+T ordering code identifies the Analog Devices extended-temperature SOIC variant supplied in tape-and-reel packaging. Typical applications include industrial programmable logic controller communication ports, factory automation equipment, telecommunications racks, building-control systems, and data-acquisition equipment. Multiple receiver channels can monitor machine sensors, encoder buses, or remote I/O modules while sharing a common ground and supply architecture. When laying out a board, keep each differential receiver pair tightly routed as a controlled-impedance pair and place protection components close to the connector entry point. Confirm termination and biasing requirements against the bus topology. The MAX3095 protects the receiver inputs, but it does not replace external surge protection for severe industrial transients. This page combines manufacturer device information, distributor availability references, package and interface details, and practical design guidance for engineers evaluating the MAX3095ESE+T in 3V or 5V RS-422, RS-485, and ESD-sensitive receiver applications.

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MAX3097EESE+ - Triple 32Mbps RS-422/RS-485 Receiver | Analog Devices
MAX3097EESE+

MAX3097EESE+ - Triple 32Mbps RS-422/RS-485 Receiver | Analog Devices

The Analog Devices MAX3097EESE+ is a triple RS-422/RS-485 line receiver with fault detection, 32 Mbps operation, and ±15 kV ESD protection, housed in a 16-pin NSOIC package. The device operates from a 3 V to 5.5 V supply range, with the verified product description specifying 3 V/5 V operation. It accepts three differential receiver inputs and provides fault-status outputs for detecting invalid input states. A line receiver is an interface circuit that converts low-amplitude differential signals into a digital logic-level output. RS-422 and RS-485 are balanced serial-interface standards used to transmit data reliably over cables and through electrically noisy environments. The MAX3097EESE+ belongs to the receiver and interface-IC hierarchy, combining differential signaling, fault indication, and transient protection in one device. Key features include three high-speed receivers, support for both RS-422 and RS-485 signaling, ±15 kV ESD protection, and operation up to 32 Mbps. The fault-detection circuitry indicates when a receiver input is not in a valid state, allowing system software or hardware monitoring logic to identify wiring faults, idle conditions, or abnormal bus states. The 16-pin NSOIC package supports conventional surface-mount PCB assembly. The MAX3097E family is intended for industrial data links, factory equipment, communications interfaces, and other systems that use balanced differential signaling. Its three-channel architecture reduces component count when several receiver channels are required on one board. The ±15 kV ESD rating is particularly relevant to externally connected communication lines, where static discharge and cable-borne transients can damage interface circuitry. Designers should verify the receiver’s fault-status logic, supply sequencing, input termination, and cable configuration against the manufacturer datasheet before production use. Differential receiver inputs should be routed as a matched pair, with appropriate grounding and protection implemented according to the system’s cable environment. The receiver is not a transmitter, so a separate RS-485 driver is required when a design needs bidirectional bus communication. This product page consolidates verified manufacturer and distributor information, pricing references, package details, and application guidance for engineers evaluating the MAX3097EESE+. It is intended as a technical buying and design reference rather than a substitute for the complete manufacturer datasheet.

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MAX310EWN+ - 8:1 CMOS RF/Video Multiplexer | Maxim
MAX310EWN+

MAX310EWN+ - 8:1 CMOS RF/Video Multiplexer | Maxim

The Maxim Integrated MAX310EWN+ is an 8-channel CMOS RF/video multiplexer with one 8:1 selection path, 250 ohm on-state resistance, and operation from negative or positive dual supplies spanning -16.5 V to -4.5 V and 4.5 V to 16.5 V. The device is packaged in an 18-pin SOIC for surface-mount assembly. A video multiplexer is an interface integrated circuit that routes one of several analog video sources to a shared output. The MAX310EWN+ belongs to the broader RF/video switch and signal-routing hierarchy, where an analog switch or multiplexer selects a source without requiring separate downstream receivers for every input. CMOS construction supports low-power operation and consistent signal-path behavior across negative and positive supply rails. The principal feature set includes eight selectable RF/video channels, a single multiplexed output path, and 250 ohm on resistance. Its ability to operate with either negative or positive supply voltage is useful in systems using bipolar signal paths, legacy video equipment, or mixed analog environments. The industrial temperature grade and surface-mount SOIC package support compact, automated PCB assembly. Signal integrity depends on keeping the selected path short and providing a stable return connection. Although the switch resistance is suitable for many video-routing applications, cable capacitance, source impedance, trace geometry, and the impedance of the connected receiver can influence edge response. Grounding, bypass capacitance, and connector placement should therefore be treated as parts of the complete switching network rather than separate mechanical concerns. Typical uses include analog video source selection, RF test-equipment routing, broadcast and professional video signal routing, instrumentation channel selection, and legacy computer-video interfaces. The MAX310EWN+ is most appropriate when an eight-input multiplexer is required in an 18-pin surface-mount design and when bipolar supply operation matches the surrounding circuitry. For layout, assign each signal pin directly to its corresponding connector or source network, keep the mux input and output routes short, and provide local supply bypassing. Check the complete datasheet for control logic levels, break-before-make behavior, channel capacitance, leakage, and timing before using the device in precision or high-frequency systems. This page consolidates the identified electrical characteristics, package details, functional alternatives, and practical layout guidance for engineers evaluating the MAX310EWN+. It also distinguishes the explicitly documented drop-in candidate from related multiplexers that use a different package or function and therefore are not direct replacements.

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MAX311EWN+ 8-Channel CMOS RF Video Multiplexer | Analog Devices
MAX311EWN+

MAX311EWN+ 8-Channel CMOS RF Video Multiplexer | Analog Devices

Analog Devices MAX311EWN+ is an 8-channel, CMOS RF video multiplexer designed for routing high-frequency video signals in electronic systems. The device is offered in an 18-pin wide SOIC package for surface-mount assembly, with production documentation identified on the manufacturer product page. Its multiplexed switching architecture makes it applicable to video test equipment, imaging systems, broadcast equipment, and other RF or video signal-routing designs where one of several channels must be selected by control logic. A video multiplexer is a semiconductor switching device that connects multiple signal inputs to a common output path. In the product hierarchy, the MAX311EWN+ is an analog switch and multiplexer IC, which is a type of interface IC used to route high-speed signals under digital control. The MAX311 family is identified by Analog Devices as an 8-channel CMOS RF/video multiplexer. The wide SOIC package provides a practical option for conventional PCB assembly and offers enough mechanical spacing for production inspection compared with a fine-pitch package. The MAX311EWN+ uses CMOS switching circuitry to control RF or video signal paths. CMOS implementation is suited to high-input-impedance systems because it can provide low loading on the source signals while accepting digital control inputs from a controller. The multiplexing function can reduce the number of separate downstream receivers, comparators, or signal-processing channels required when several sources must be routed through a common processing chain. Primary applications include video measurement systems, multimedia routing, broadcast and professional video equipment, camera and imaging test setups, RF test fixtures, and compact embedded video systems. The 8-channel configuration allows a controller to scan or select among multiple sources, making the device useful in automatic test equipment where repetitive routing is required. Designers should also evaluate signal attenuation, isolation, switching speed, bandwidth, control levels, and channel count against the specific source impedance and termination network. For PCB implementation, place the device close to the routed signals and provide a continuous ground reference around the package. Keep high-frequency video traces short and use controlled-impedance routing when trace geometry or dielectric properties affect signal quality. Decoupling near the supply pins should follow the capacitor-selection and placement guidance in the manufacturer data sheet. The control traces should be kept away from sensitive analog paths to minimize switching transients and unintended coupling. This page organizes the manufacturer identification, exact orderable MPN, package information, functional requirements, application guidance, comparison parameters, and engineering considerations into a practical procurement and design reference. It also distinguishes the verified drop-in replacement from package or channel-count mismatches, helping engineers avoid substitutions that appear similar but would require PCB changes or redesign.

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MAX314CPE+ - Quad SPST Analog Switch | Analog Devices
MAX314CPE+

MAX314CPE+ - Quad SPST Analog Switch | Analog Devices

The Analog Devices MAX314CPE+ is a four-circuit CMOS analog switch with four independently controlled SPST channels, a maximum on-resistance of 10 ohms, and a 16-pin PDIP package. Each switch conducts equally well in either direction, making the device suitable for routing analog, digital, and low-frequency instrumentation signals. An analog switch is a solid-state semiconductor device that connects or isolates circuit paths under electrical control. Unlike a mechanical relay, it operates without moving contacts, enabling fast switching and compact integration. The MAX314CPE+ belongs to the CMOS analog-switch hierarchy and provides four SPST channels in a through-hole package for applications that require signal routing rather than continuous power conversion. The device has a maximum on-resistance of 10 ohms and on-resistance matching between channels of 1.5 ohms. Its low leakage of 2.5 nA at +85°C helps preserve signal integrity in high-impedance circuits. Bidirectional conduction expands routing flexibility, while low power consumption supports both portable and fixed equipment. ESD tolerance greater than 2000 V per Method 3015.7 adds handling protection during assembly. Each of the four switch channels provides a separate control path, allowing a system to isolate a sensor, select a measurement route, or disconnect an external interface. The parallel CMOS structure avoids mechanical contact delay or wear, while the specified resistance matching helps limit channel-dependent gain and attenuation errors when multiple inputs are routed through the device. Typical uses include analog signal multiplexing in test and measurement equipment, channel isolation in data-acquisition systems, switching between sensors and amplifiers, and routing control signals in industrial control boards. The 16-pin PDIP package is particularly useful for prototypes, through-hole assemblies, and designs where a socketed or manually solderable package simplifies maintenance. When laying out the circuit, place each switched node close to its source and destination where practical, and avoid sharing long copper paths between sensitive channels. Confirm signal amplitude, leakage requirements, control logic levels, and switching transients against the manufacturer data sheet. The MAX314CPE+ is especially appropriate when four separately controlled, bidirectional, normally open analog paths are needed in a conventional through-hole design. This product page combines the manufacturer specifications, sourcing details, pin-package information, and practical selection guidance. It also identifies same-family alternatives while distinguishing verified drop-in choices from options that require a footprint or interface review before substitution.

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MAX3160EAP+ - 3.0-5.5V Multiprotocol Transceiver | Analog Devices
MAX3160EAP+

MAX3160EAP+ - 3.0-5.5V Multiprotocol Transceiver | Analog Devices

The Analog Devices MAX3160EAP+ is a 3.0V to 5.5V RS-232/RS-485/RS-422 multiprotocol transceiver with a 20-pin SSOP package. It is programmable as a two-transmitter, two-receiver RS-232 interface or as a single RS-485/RS-422 transceiver, allowing one physical interface circuit to support multiple serial protocols. The device also supports pin-selectable transmitter slew rates for RS-232 and RS-485/422 operation, helping reduce EMI and cable reflections. Analog Devices identifies the MAX3160 family as a low-power multiprotocol interface solution, with a listed 1 uA operating-current feature and data rates up to 250 kbps for suitable operation. The MAX3160EAP+ is packaged as a 20-SSOP surface-mount device. Its protocol configurability makes it useful in industrial controls, interface converters, networking peripherals, point-of-sale equipment, and security systems where a board must accommodate legacy RS-232 alongside balanced RS-485 or RS-422 links. The MAX3160 family is pin-programmable, so the same PCB can be configured differently during assembly or test. Compared with a fixed RS-232 transceiver, the MAX3160EAP+ adds RS-485/RS-422 capability and selectable slew-rate control in one interface IC. Its low operating-current positioning is important for portable and space-constrained equipment, while the SSOP footprint simplifies integration with conventional surface-mount assembly. Design decisions should confirm the selected protocol, termination requirements, cable length, data rate, and logic-level compatibility against the manufacturer datasheet.

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MAX31856MUD+ Precision Thermocouple Converter | Analog Devices
MAX31856MUD+

MAX31856MUD+ Precision Thermocouple Converter | Analog Devices

The Analog Devices MAX31856MUD+ is a precision thermocouple-to-digital converter with cold-junction compensation, digital linearization, Celsius-formatted output, and a 14-TSSOP package. The verified source data identifies 0.0078125°C resolution and supports readings from -55°C to 125°C for the listed device context, with thermocouple measurements reaching as high as +1800°C. It converts thermocouple signals into digital temperature data while supporting multiple thermocouple types through device configuration. A thermocouple-to-digital converter is an interface IC that conditions a low-voltage thermoelectric voltage, performs cold-junction compensation, applies the appropriate linearization for the selected thermocouple type, and transfers temperature data to a host controller. The MAX31856 belongs to the sensor and detector interface category and sits between physical temperature sensors and digital embedded systems. Its digital interface makes temperature monitoring suitable for industrial equipment, test systems, control loops, and embedded instrumentation. The verified manufacturer result identifies cold-junction compensation, thermocouple signal digitisation, linearization, Celsius output format, and 0.0078125°C resolution as central features. The device is supplied in a 14-pin TSSOP package, with the MUD+ ordering code shown by DigiKey as a thermocouple-to-digital converter IC. The source material does not provide a complete verified set of electrical limits, SPI timing values, thermocouple input ranges for every type, or package dimensions, so those values are not inferred here. Because a thermocouple measures the temperature difference between a sensing junction and a reference junction, cold-junction compensation is essential for accurate measurements near ambient temperature. The MAX31856 handles this function internally, allowing the host system to receive compensated digital temperature data rather than raw thermocouple voltage. Digital linearization further reduces the software burden associated with converting nonlinear thermocouple voltage into temperature. Typical uses include industrial furnace monitoring, temperature-controlled processes, laboratory equipment, environmental monitoring, and embedded thermal control. In each case, the thermocouple type, wiring, cold-junction implementation, grounding strategy, and digital interface configuration must be selected according to the manufacturer's datasheet. The verified data does not identify a specific companion MCU or application reference design, so companion products are not asserted as manufacturer-recommended parts. The principal design consideration is ensuring that the selected thermocouple, input filtering, grounding, and digital interface match the system measurement range. For thermocouple signals, keeping the analog input path away from switching nodes and noisy digital return currents helps preserve measurement integrity. This page consolidates verified distributor listings, the official Analog Devices product page, and the available cross-reference information without inventing missing electrical parameters.

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MAX319CSA+ - Precision 35Ω CMOS SPDT Switch | Analog Devices
MAX319CSA+

MAX319CSA+ - Precision 35Ω CMOS SPDT Switch | Analog Devices

The Analog Devices MAX319CSA+ is a precision, single-pole double-throw CMOS analog switch with one normally open and one normally closed path, a maximum on-resistance of 35Ω, and an 8-pin SOIC package. It is designed for precision signal routing where low on-resistance, low charge injection, low power consumption, and high electrostatic-discharge withstand are important. An analog switch is a semiconductor interface that routes an analog signal between circuit nodes under digital control. Unlike a relay, it operates electronically at low voltage and can switch signals rapidly without mechanical wear. The MAX319 belongs to the broader analog-switch hierarchy, which sits alongside multiplexers, demultiplexers, and interface ICs used to connect sensors, test equipment, measurement systems, and signal-processing electronics. Key electrical characteristics include on-resistance below 20Ω typical and 35Ω maximum, guaranteed channel matching within 2Ω, and on-resistance variation of no more than 3Ω maximum across the analog signal range. Charge injection is low at 10pC, while power consumption is 35µW. These characteristics help preserve signal fidelity when the switch is used in measurement, control, or data-acquisition paths. The MAX319 family uses an improved silicon-gate CMOS process and rail-to-rail analog signal handling capability associated with a 44V maximum breakdown voltage. Its precision configuration is useful when signal-source impedance, leakage, or switch resistance could otherwise influence the measurement result. The MAX319CSA+ ordering code identifies the 8-pin SOIC package and the manufacturer's standard production configuration. Typical uses include battery-powered instrumentation, automated test equipment, analog measurement systems, signal-path routing, sample-and-hold circuits, and industrial control interfaces. Its low 35µW power consumption is particularly useful in portable equipment, while the 35Ω maximum on-resistance is suitable for moderate-impedance analog signals rather than ultra-low-impedance precision dividers. When designing a circuit around the MAX319CSA+, account for the switch's on-resistance, leakage, charge injection, and off-state behavior when calculating signal attenuation and timing. Place the device close to sensitive signal paths, maintain adequate grounding, and use the manufacturer pin-description table when assigning PCB tracks. Verify the logic levels and control polarity against the actual device documentation before finalizing the layout. This product page combines the manufacturer's device specifications with practical design guidance, package information, sourcing details, and a conservative drop-in assessment. It emphasizes verified distinctions between electrically similar devices so engineers can determine whether a replacement preserves both the board footprint and the required switch behavior.

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MAX3221CAE+ - 3 to 5.5V RS-232 Transceiver | Analog Devices
MAX3221CAE+

MAX3221CAE+ - 3 to 5.5V RS-232 Transceiver | Analog Devices

Analog Devices MAX3221CAE+ is a one-driver, one-receiver RS-232 transceiver designed for +3V to +5.5V operation and supplied in a 16-pin SSOP package. It provides 1 µA supply current when AutoShutdown is active, while integrating the charge-pump circuitry required to generate RS-232-compatible driver levels from a low-voltage supply. The MAX3221CAE+ is suitable for portable equipment, industrial controls, data acquisition systems, and other equipment that requires a compact, low-power serial interface. An RS-232 transceiver is an interface IC that combines a transmitter and receiver for communicating between a logic-level device and an RS-232 port. The transmitter converts low-voltage TTL or CMOS signals into RS-232 levels, while the receiver converts incoming RS-232 signals back into logic-compatible levels. The MAX3221 family belongs to the interface IC hierarchy and provides a practical way to bridge modern embedded systems with legacy RS-232 equipment. The MAX3221CAE+ includes Maxim's AutoShutdown feature, allowing the on-board power supply and driver circuitry to shut down when the receiver does not detect a valid signal. According to the Analog Devices MAX3221 product page, the device operates from +3V to +5.5V and reaches a supply current of 1 µA. These characteristics are particularly valuable in battery-powered instruments where a permanently active RS-232 interface would increase standby power consumption. The MAX3221 is a 1-driver/1-receiver 16-pin SSOP version of the 2-driver/2-receiver MAX3223. Its integrated RS-232 supply uses charge-pump circuitry to develop the voltage swing needed by the transmitter. The C designation denotes the family's capacitor configuration, while the E designation provides shutdown-control functionality. The A suffix identifies the package and temperature-related ordering configuration used in the MAX3221CAE+ ordering code. Typical applications include battery-powered test equipment, handheld configuration tools, serial adapters, industrial instrumentation, point-of-sale equipment, and embedded systems that must communicate with a host computer through an RS-232 port. The 16-pin SSOP footprint is useful for compact designs, although engineers should verify connector protection, cable length, logic levels, and supply compatibility against the system requirements. The principal design consideration is signal integrity. RS-232 is a single-ended, unbalanced interface, so cable routing and ground quality can materially affect noise immunity. Place the transceiver close to the interface connector, provide a low-impedance ground path, use suitable protection for exposed cables, and observe the manufacturer's recommended charge-pump capacitor values. External circuitry may also be required for hardware handshaking or for conditioning signals on long or electrically noisy cables. This page organizes the MAX3221CAE+ specifications, application guidance, package information, and verified same-package alternatives into an engineering-focused reference. It also highlights the practical trade-offs among shutdown, supply-voltage, capacitance, and temperature variants so designers can make a replacement decision based on actual circuit requirements rather than package similarity alone.

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MAX3221CDB - 250kbps RS-232 Transceiver | Texas Instruments
MAX3221CDB

MAX3221CDB - 250kbps RS-232 Transceiver | Texas Instruments

Texas Instruments MAX3221CDB is a 3 V to 5.5 V, single-channel RS-232 line driver and receiver supporting data rates up to 250 kbps in a 16-pin SSOP package. The transceiver combines one driver, one receiver with a dedicated enable input, and a dual charge-pump circuit, while providing ±15 kV ESD protection on the serial-port connection pins, including ground. An RS-232 transceiver is an interface IC that converts logic-level signals between a host or controller and a RS-232 serial link. The MAX3221 belongs to the line-driver and line-receiver hierarchy within interface ICs and interface transceivers. It is useful where a compact embedded system must communicate with legacy serial equipment, industrial controllers, service consoles, or other RS-232 endpoints without using a higher-voltage ±5 V supply rail. Key electrical features include a 3 V to 5.5 V supply range, operation at up to 250 kbps, one full-duplex driver, one full-duplex receiver, and ±15 kV ESD protection. The integrated dual charge-pump circuit provides the RS-232 level-shifting function needed by the line driver, while the receiver provides inversion and thresholding appropriate for noisy serial environments. A dedicated receiver-enable input supports controlled receiver operation in systems where the serial line must be disabled temporarily. The MAX3221 architecture is intended for low-voltage systems that cannot conveniently support a traditional RS-232 supply. Operating the charge-pump and transceiver from 3 V to 5.5 V reduces system-voltage requirements, while the single-channel structure avoids the channel count and pin requirements of multi-driver RS-232 devices. The 16-pin SSOP package is suitable for compact industrial, communications, instrumentation, and embedded-control equipment. Typical applications include RS-232 configuration ports, programmable-instrument control, industrial serial adapters, point-of-sale equipment, and maintenance interfaces. Its 250 kbps capability is more than adequate for many legacy control protocols, while the receiver enable function is useful in systems that share, isolate, or periodically disconnect a serial port. A key design consideration is that the external RS-232 connector, cable, and ground path determine much of the real-world ESD and noise immunity. Place the transceiver close to the connector, route the interface ground appropriately, and use the datasheet-recommended charge-pump capacitor and driver-load arrangements to preserve signal integrity. This page consolidates the device specifications, pin-compatible family comparisons, application guidance, and design cautions needed to evaluate the MAX3221CDB alongside other single-channel RS-232 transceivers.

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MAX3221CDBR - 250kbps RS-232 Transceiver | Texas Instruments (Tape & Reel)
MAX3221CDBR

MAX3221CDBR - 250kbps RS-232 Transceiver | Texas Instruments (Tape & Reel)

Texas Instruments MAX3221CDBR is a 3 V to 5.5 V, single-channel RS-232 line driver and receiver supporting data rates up to 250 kbps in a 16-pin SSOP package. The transceiver combines one driver, one receiver with a dedicated enable input, and a dual charge-pump circuit, while providing ±15 kV ESD protection on the serial-port connection pins, including ground. An RS-232 transceiver is an interface IC that converts logic-level signals between a host or controller and a RS-232 serial link. The MAX3221 belongs to the line-driver and line-receiver hierarchy within interface ICs and interface transceivers. It is useful where a compact embedded system must communicate with legacy serial equipment, industrial controllers, service consoles, or other RS-232 endpoints without using a higher-voltage ±5 V supply rail. Key electrical features include a 3 V to 5.5 V supply range, operation at up to 250 kbps, one full-duplex driver, one full-duplex receiver, and ±15 kV ESD protection. The integrated dual charge-pump circuit provides the RS-232 level-shifting function needed by the line driver, while the receiver provides inversion and thresholding appropriate for noisy serial environments. A dedicated receiver-enable input supports controlled receiver operation in systems where the serial line must be disabled temporarily. The MAX3221 architecture is intended for low-voltage systems that cannot conveniently support a traditional RS-232 supply. Operating the charge-pump and transceiver from 3 V to 5.5 V reduces system-voltage requirements, while the single-channel structure avoids the channel count and pin requirements of multi-driver RS-232 devices. The 16-pin SSOP package is suitable for compact industrial, communications, instrumentation, and embedded-control equipment. Typical applications include RS-232 configuration ports, programmable-instrument control, industrial serial adapters, point-of-sale equipment, and maintenance interfaces. Its 250 kbps capability is more than adequate for many legacy control protocols, while the receiver enable function is useful in systems that share, isolate, or periodically disconnect a serial port. A key design consideration is that the external RS-232 connector, cable, and ground path determine much of the real-world ESD and noise immunity. Place the transceiver close to the connector, route the interface ground appropriately, and use the datasheet-recommended charge-pump capacitor and driver-load arrangements to preserve signal integrity. This page consolidates the device specifications, pin-compatible family comparisons, application guidance, and design cautions needed to evaluate the MAX3221CDBR alongside other single-channel RS-232 transceivers.

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MAX3221CPW - 250kbps Single-Channel RS-232 Transceiver | TI
MAX3221CPW

MAX3221CPW - 250kbps Single-Channel RS-232 Transceiver | TI

Texas Instruments MAX3221CPW is a single-channel RS-232 line driver/receiver with a 3 V to 5.5 V supply, operation up to 250 kbit/s, and ±15 kV ESD protection on the serial-port connection pins. The device is packaged in a 16-pin TSSOP package and includes one line driver, one line receiver with a dedicated enable pin, and a dual charge-pump circuit. It is designed to provide the electrical interface between an asynchronous communication controller and a serial-port connector while operating from a single supply voltage. An RS-232 transceiver is an interface IC that converts logic-level digital signals into RS-232 voltage levels and converts received RS-232 signals back into logic-level signals. The MAX3221 belongs to the RS-232 interface IC hierarchy, which includes line drivers, line receivers, and charge-pump-assisted transceivers used for serial communications equipment, industrial controls, instrumentation, and point-of-sale terminals. The dual charge-pump circuit generates the positive and negative voltage levels required by the RS-232 interface without requiring a separate negative supply. The MAX3221 operates from 3 V to 5.5 V, accepts 5 V logic input with a 3.3 V supply, and supports data rates to 250 kbit/s. Its low standby current of 1 µA typical and use of external 0.1 µF capacitors help support compact, power-conscious interface designs. The dedicated receiver enable pin allows the receiver to be disabled when the host does not need to monitor the serial link. The device meets TIA/EIA-232-F requirements and is also associated with ITU V.28 operation, providing a standard RS-232 electrical interface for asynchronous communication systems. The ±15 kV ESD protection is specified pin to pin, including the serial-port connection pins and ground. This protection helps improve system robustness when cables are exposed to electrostatic discharge during installation, servicing, or normal handling. Typical uses include single-channel serial console links, industrial serial adapters, programmable instrument interfaces, barcode and point-of-sale equipment, and embedded systems that require one bidirectional RS-232 channel. The 250 kbit/s capability is appropriate for legacy serial peripherals and control links, while the 3 V to 5.5 V operating range supports both 3.3 V and 5 V system rails. When laying out the circuit, place the charge-pump capacitors and the driver and receiver interface capacitors close to their associated pins, and route the RS-232 traces away from sensitive analog or high-speed digital signals. Confirm that the transceiver enable state matches the host controller’s serial-port requirements before relying on low-power standby operation. This page combines the manufacturer’s RS-232 interface specifications with package and application guidance, verified comparison candidates, and practical design notes for engineers evaluating the MAX3221CPW in compact serial-interface designs.

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MAX3221CUE+ 3V-5.5V RS-232 Transceiver | Analog Devices
MAX3221CUE+

MAX3221CUE+ 3V-5.5V RS-232 Transceiver | Analog Devices

Analog Devices MAX3221CUE+ is a production RS-232 transceiver for single-driver, single-receiver communications links. It operates from +3V to +5.5V and is specified for EIA/TIA-232 and V.28/V.24 interfaces. The device includes one line driver, one receiver with a dedicated enable input, and a dual charge-pump circuit that supplies the RS-232 bipolar signal levels required by the communications interface. The MAX3221 family also uses Maxim’s AutoShutdown feature, allowing the on-board supply and drivers to shut down when no valid receiver signal is present, reducing supply consumption in systems where the interface is intermittently active. The MAX3221CUE+ is packaged in a 16-pin TSSOP and is identified by the C suffix and E-grade temperature designation in the manufacturer’s product family documentation. An RS-232 transceiver is an interface IC that translates between single-ended logic-level signals and the voltage-defined, bipolar signaling used by RS-232 equipment. In the transmit direction, the line driver converts logic-level data into an RS-232 signal; in the receive direction, the receiver converts the incoming RS-232 signal into a logic-level output. The dual charge-pump circuit supports the voltage translation required by the RS-232 standard without requiring a separate negative supply. The receiver enable pin gives the system designer a way to control whether the receiver is active, while AutoShutdown provides an additional power-management mechanism for ports that may be idle. The key verified characteristics of the MAX3221CUE+ include its +3V to +5.5V supply range, 1 µA-class shutdown current as described by the manufacturer family documentation, RS-232 transceiver operation, and its 16-pin TSSOP package. The Newark distributor listing identifies the part as an RS-232 transceiver with 120 Kbps signaling and a 70°C operating-temperature listing. The Analog Devices product page identifies the MAX3221 family as production and lists a starting list price of $2.52. Additional operating, electrical, and environmental details are available in the manufacturer datasheet and should be confirmed against the specific ordering code before design release. Typical uses include legacy serial-port equipment, industrial control links, data-acquisition equipment, and embedded systems that require a compact RS-232 port. The MAX3221CUE+ can be used when a design needs a low-voltage digital supply while retaining conventional RS-232 signaling at the connector. Its single-driver and single-receiver organization is appropriate for point-to-point links rather than multi-drop RS-232 networks. The dedicated receiver enable and AutoShutdown functions are useful in systems where the interface must remain available without continuously powering the complete driver and receiver circuitry. The primary design consideration is verifying the exact pinout, capacitor values, and signal-termination requirements from the MAX3221 manufacturer datasheet. Charge-pump capacitors must be placed close to their associated pins, and the RS-232 connector-side circuit should be designed for the voltage and ESD requirements of the application. The MAX3221CUE+ is appropriate when the required interface is one driver and one receiver in a 16-pin TSSOP footprint; designers needing multiple drivers or receivers should select a larger RS-232 transceiver family instead. This page combines manufacturer family information, distributor pricing, verified cross-reference results, application guidance, and design cautions to support practical sourcing and comparison of the MAX3221CUE+ rather than reproducing only the basic distributor description.

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MAX3221EAE+ - 3V RS-232 Transceiver with AutoShutdown | Analog Devices
MAX3221EAE+

MAX3221EAE+ - 3V RS-232 Transceiver with AutoShutdown | Analog Devices

The Analog Devices MAX3221EAE+ is a 3V-powered, 1-driver/1-receiver RS-232 transceiver with AutoShutdown, operating from 3V to 5.5V and reaching 120 kbps in a 16-pin SSOP package. It provides one transmit driver, one receive path, automatic shutdown and wake-up, and enhanced ESD protection according to the verified manufacturer description. The device is intended for low-voltage serial interfaces where power efficiency, compact footprint, and reliable RS-232 signal translation are required. An RS-232 transceiver is an interface IC that converts between single-ended logic-level signals and the bipolar voltage levels used by RS-232 links. The MAX3221 family uses an internal charge-pump circuit to generate the RS-232 transmitter voltage from a single low-voltage supply. In the system hierarchy, it is a communication interface IC, a line-interface device, and a voltage-level translator used between host controllers and external serial equipment. Key verified characteristics include a 3V to 5.5V supply range, 120 kbps data-rate capability, 1 microamp supply-current operation in shutdown, one RS-232 driver, and one receiver. AutoShutdown reduces power use when the receiver does not detect a valid signal. The 16-SSOP package is specified as approximately 5.30 mm wide in the distributor result, making the device suitable for compact equipment designs. The MAX3221EAE+ is appropriate for embedded serial-console connections, industrial control links, point-of-sale systems, instrumentation, and USB-to-RS-232 adapters. The internal charge pump removes the need for a separate bipolar supply, while the receiver and driver provide the basic signal path between a low-voltage controller and an RS-232 connector. The tradeoff is that RS-232 is a single-ended, point-to-point interface with limited cable distance and no multidrop capability. For layout, place charge-pump capacitors and the receiver/transmitter interface components close to their associated pins, and follow the manufacturer's recommended capacitor values. Keep the RS-232 connector-side traces away from sensitive low-level logic where practical. Confirm line rates, cable length, ground continuity, and the system supply level before finalizing the design. This page combines the verified manufacturer description, distributor package information, application guidance, and comparison-oriented design notes to provide practical RS-232 transceiver information beyond a basic catalog listing.

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MAX3221ECDBRG4 - 3V-5.5V Single RS-232 Transceiver | TI
MAX3221ECDBRG4

MAX3221ECDBRG4 - 3V-5.5V Single RS-232 Transceiver | TI

The Texas Instruments MAX3221ECDBRG4 is a 3 V to 5.5 V single-channel RS-232 line driver and receiver with ±15 kV IEC 61000-4-2 ESD protection, housed in a 16-SSOP package measuring 5.30 mm wide. The device combines one driver and one receiver in a compact interface suitable for bidirectional serial-port connections. An RS-232 transceiver is an interface IC that converts logic-level signals into RS-232-compatible voltage levels and restores incoming RS-232 signals to logic-compatible levels. It belongs to the interface IC hierarchy, where it connects digital logic or microcontrollers to legacy peripheral ports. The MAX3221E family also uses on-chip charge-pump circuitry to generate the bipolar voltage levels required by RS-232 without a separate negative supply. Key features include operation from 3 V to 5.5 V, one driver and one receiver, ±15 kV human-body-model ESD protection, ±8 kV IEC 61000-4-2 contact discharge protection, and ±15 kV air-gap discharge protection. The device uses four external 0.1 µF charge-pump capacitors. Its 16-SSOP surface-mount package supports compact industrial-control, instrumentation, and embedded equipment layouts. The MAX3221E architecture provides the electrical interface required by asynchronous serial systems. A single external capacitor at each charge-pump node supports the internal voltage conversion, while the driver presents the bipolar voltage levels expected by an RS-232 port and the receiver converts those levels back to digital logic. This integration simplifies PCB area compared with discrete level-shifting and charge-pump networks. Typical applications include debug-console connections, industrial serial adapters, point-of-sale equipment, test and measurement instruments, and embedded systems that retain an RS-232 port. For new designs, an RS-232 transceiver is most useful when an existing host or peripheral expects the physical RS-232 interface rather than USB, RS-485, or a proprietary differential link. Place the four 0.1 µF charge-pump capacitors close to their designated pins and route the driver output and receiver input traces away from sensitive analog or high-speed digital nodes. Confirm the board ground and cable shield arrangement before field deployment because connector-level ESD protection alone does not eliminate conducted noise entering through the cable. This product record combines the MAX3221ECDBRG4 electrical characteristics, package information, interface ratings, drop-in alternatives, comparison parameters, and practical layout guidance in one engineering-focused reference. It supports component selection, PCB footprint review, and RS-232 interface design without relying on a generic interface-IC overview.

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MAX3221EEAE+ - 250kbps RS-232 Transceiver | Analog Devices
MAX3221EEAE+

MAX3221EEAE+ - 250kbps RS-232 Transceiver | Analog Devices

Analog Devices MAX3221EEAE+ is a single-driver, single-receiver RS-232 transceiver designed for portable and embedded equipment. It operates from 3.0V to 5.5V, supports data rates up to 250kbps, and is housed in a 16-pin SSOP package. The MAX3221E family also provides automatic shutdown and wake-up functions plus enhanced electrostatic-discharge protection on all transmitter outputs and receiver inputs. An RS-232 transceiver is an interface IC that converts a logic-level UART signal into RS-232 voltage levels and converts an incoming RS-232 signal back into CMOS-compatible logic. It belongs to the communication-interface hierarchy: RS-232 transceiver, line-driver and receiver interface, interface IC, and semiconductor. This bidirectional conversion allows a modern microcontroller or processor to communicate with legacy printers, industrial equipment, data terminals, and other RS-232 systems. The MAX3221EEAE+ combines a 3.0V to 5.5V supply range with a maximum data rate of 250kbps. Its AutoShutdown feature reduces supply current to 1uA when the system is inactive, helping conserve power in handheld and battery-operated equipment. Enhanced ESD protection rated to 15kV adds protection for the physical RS-232 connector interface, where cables can introduce electrostatic discharge into the equipment. The device uses a charge-pump-assisted interface architecture to generate the positive and negative voltages required by RS-232 while operating from a single low-voltage supply. One transmitter and one receiver support one complete bidirectional communication channel. The MAX3221 is the 16-pin member of the MAX3221E, MAX3223E, and MAX3243E interface family, while MAX3223E and MAX3243E provide additional driver or receiver channels for multi-port designs. Typical uses include handheld test equipment, portable data-collection systems, industrial serial adapters, point-of-sale terminals, and equipment with a legacy RS-232 port. The 16-pin SSOP package is useful when a compact interface is required without adding a larger multi-channel transceiver. The combination of low-voltage operation, 250kbps performance, AutoShutdown, and 15kV ESD protection makes the part appropriate for portable equipment that must maintain reliable serial connectivity. Designers should follow the manufacturer datasheet for capacitor selection, charge-pump layout, and RS-232 connector protection. Place the required charge-pump capacitors close to their associated pins, route the interface nets away from sensitive analog circuitry, and provide the specified bypass capacitance at the supply pins. The external RS-232 connector should also receive suitable protection appropriate to the cable length and environmental exposure. This page combines manufacturer specifications, packaging information, practical interface-design guidance, and technically meaningful drop-in comparisons. These engineering details help shorten component selection and PCB-layout work while making the trade-offs among the MAX3221E grade and package-ordering options easier to assess.

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MAX3221IDB - 250kbps Single RS-232 Transceiver | TI
MAX3221IDB

MAX3221IDB - 250kbps Single RS-232 Transceiver | TI

The Texas Instruments MAX3221IDB is a single-channel RS-232 line driver and receiver with a 3 V to 5.5 V supply range, data rate up to 250 kbps, and ±15 kV ESD protection in a 16-pin SSOP package. The device provides one driver and one receiver with a dedicated receiver-enable function for serial-port interfaces. An RS-232 transceiver is an interface integrated circuit that converts logic-level UART signals into RS-232 voltage levels and converts returning RS-232 signals back into logic-compatible levels. The MAX3221IDB sits between an asynchronous communication controller and a serial connector, combining a line driver, line receiver, and dual charge-pump circuit in one compact package. Its headline operating specifications are a 3 V to 5.5 V supply range, 250 kbps maximum signaling rate, and ±15 kV pin-to-pin ESD protection. The integrated dual charge-pump circuit generates the positive and negative voltage levels required for RS-232 transmission without requiring an external supply. A dedicated receiver-enable pin supports controlled reception when the host does not need the incoming signal continuously. The device meets the electrical requirements stated for TIA/EIA-232-F and is intended for asynchronous serial communication. Because the MAX3221IDB combines only one transmit channel and one receive channel, it is most appropriate where the system needs a compact point-to-point RS-232 interface rather than multiple channels. Its 16-pin SSOP format also supports conventional surface-mount PCB assembly. Typical uses include industrial serial controllers, point-to-point data links, configuration-port interfaces, test equipment, and embedded systems that communicate with RS-232 equipment. The 250 kbps capability is suitable for common serial-port baud rates while the internal charge pumps simplify implementation compared with a discrete level-shifting circuit. When laying out the circuit, place the charge-pump capacitors and interface protection components close to their associated pins, and route the driver and receiver traces away from sensitive analog circuitry. Confirm connector-level signal integrity with the intended cable, baud rate, grounding arrangement, and ESD environment before production release. This page combines the manufacturer specifications, drop-in replacement information, application guidance, and design considerations needed to evaluate the MAX3221IDB for a single-channel RS-232 interface. Use the Request a Quote form on this page for current commercial availability and lead-time information.

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MAX3221IPW - 250kbps Single RS-232 Transceiver | Texas Instruments
MAX3221IPW

MAX3221IPW - 250kbps Single RS-232 Transceiver | Texas Instruments

The Texas Instruments MAX3221IPW is a single-channel RS-232 line driver/receiver with a 3 V to 5.5 V supply, a maximum data rate of 250 kbps, and ±15 kV ESD protection, housed in a 16-pin TSSOP package. It combines one transmit driver, one receive channel with a dedicated enable input, and a dual charge-pump circuit for converting low-voltage logic into RS-232 bipolar levels. An RS-232 transceiver is the interface between a low-voltage digital controller and a serial port using bipolar signal levels. Also called an RS-232 line driver/receiver or interface transceiver, it belongs to the interface IC hierarchy and translates controller-side logic into RS-232 levels while converting an incoming RS-232 signal back to logic. The MAX3221 supports one communications direction, making it suitable for point-to-point serial links, control consoles, industrial equipment, and embedded systems. Key features include operation from a 3 V to 5.5 V supply, support for data rates up to 250 kbps, and ±15 kV ESD protection on the serial-port connection pins, including ground. The device accepts 5 V logic input while operating from a 3.3 V supply. Its dual charge-pump architecture requires only 0.1 µF external capacitors, while low standby current supports power-conscious designs. Technically, the MAX3221 contains one line driver, one line receiver with a dedicated enable pin, and the charge-pump circuitry needed to generate positive and negative RS-232 voltage levels. According to the manufacturer datasheet, the interface meets TIA/EIA-232-F requirements and provides the electrical interface between an asynchronous communication controller and a serial-port connector. This combination allows a modern microcontroller or processor to communicate with legacy RS-232 equipment without implementing discrete level-shifting circuitry. Typical applications include industrial automation and factory equipment, point-to-point serial adapters, test and measurement instruments, security and access-control systems, and embedded diagnostic ports. The dedicated receiver enable provides a way to place the receive path in a controlled state, while the 3.3 V-compatible supply helps simplify interfaces based on modern logic rails. When designing a board around the MAX3221IPW, place the required charge-pump capacitors close to their corresponding pins and route the RS-232 connector interface away from sensitive analog or high-speed digital paths. External protection, grounding, and cable-routing practices remain important because the specified ±15 kV ESD rating applies to the device pins rather than to every possible system-level surge, lift, or cable event. This product record combines verified manufacturer specifications, distributor availability information, same-footprint replacement data, and practical interface-design guidance. It is intended to help engineers identify the correct RS-232 transceiver, verify package and pin compatibility, plan decoupling, and distinguish a genuine drop-in replacement from a merely similar line-driver or receiver.

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MAX3221IPWR - 250kbps Single RS-232 Transceiver | Texas Instruments (Tape & Reel)
MAX3221IPWR

MAX3221IPWR - 250kbps Single RS-232 Transceiver | Texas Instruments (Tape & Reel)

The Texas Instruments MAX3221IPWR is a single-channel RS-232 line driver/receiver with a 3 V to 5.5 V supply, a maximum data rate of 250 kbps, and ±15 kV ESD protection, housed in a 16-pin TSSOP package. It combines one transmit driver, one receive channel with a dedicated enable input, and a dual charge-pump circuit for converting low-voltage logic into RS-232 bipolar levels. An RS-232 transceiver is the interface between a low-voltage digital controller and a serial port using bipolar signal levels. Also called an RS-232 line driver/receiver or interface transceiver, it belongs to the interface IC hierarchy and translates controller-side logic into RS-232 levels while converting an incoming RS-232 signal back to logic. The MAX3221 supports one communications direction, making it suitable for point-to-point serial links, control consoles, industrial equipment, and embedded systems. Key features include operation from a 3 V to 5.5 V supply, support for data rates up to 250 kbps, and ±15 kV ESD protection on the serial-port connection pins, including ground. The device accepts 5 V logic input while operating from a 3.3 V supply. Its dual charge-pump architecture requires only 0.1 µF external capacitors, while low standby current supports power-conscious designs. Technically, the MAX3221 contains one line driver, one line receiver with a dedicated enable pin, and the charge-pump circuitry needed to generate positive and negative RS-232 voltage levels. According to the manufacturer datasheet, the interface meets TIA/EIA-232-F requirements and provides the electrical interface between an asynchronous communication controller and a serial-port connector. This combination allows a modern microcontroller or processor to communicate with legacy RS-232 equipment without implementing discrete level-shifting circuitry. Typical applications include industrial automation and factory equipment, point-to-point serial adapters, test and measurement instruments, security and access-control systems, and embedded diagnostic ports. The dedicated receiver enable provides a way to place the receive path in a controlled state, while the 3.3 V-compatible supply helps simplify interfaces based on modern logic rails. When designing a board around the MAX3221IPWR, place the required charge-pump capacitors close to their corresponding pins and route the RS-232 connector interface away from sensitive analog or high-speed digital paths. External protection, grounding, and cable-routing practices remain important because the specified ±15 kV ESD rating applies to the device pins rather than to every possible system-level surge, lift, or cable event. This product record combines verified manufacturer specifications, distributor availability information, same-footprint replacement data, and practical interface-design guidance. It is intended to help engineers identify the correct RS-232 transceiver, verify package and pin compatibility, plan decoupling, and distinguish a genuine drop-in replacement from a merely similar line-driver or receiver.

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MAX3222CPN+ - 3V RS-232 Transceiver, 1Mbps, 18-PDIP | Maxim
MAX3222CPN+

MAX3222CPN+ - 3V RS-232 Transceiver, 1Mbps, 18-PDIP | Maxim

The Analog Devices (formerly Maxim Integrated) MAX3222CPN+ is a 3.0V to 5.5V powered, true RS-232 transceiver that integrates two line drivers, two line receivers, and a dual charge pump in a single 18-pin PDIP through-hole package. It supports data rates up to 1 Mbps (with the MAX3222/MAX3232 family) and uses only four external 0.1 uF capacitors to generate the ±5.5V RS-232 rails from a single 3V supply. The "+" suffix indicates a lead-free, RoHS-compliant shipping tube. A True RS-232 transceiver is a line driver/receiver IC that translates logic-level UART signals (0/VCC) to RS-232 voltage levels (±5V to ±15V) while also shifting external RS-232 levels back down to logic levels. It is a core sub-category of the serial-communication interface hierarchy: UART -> RS-232 transceiver -> line driver/receiver -> interface IC -> integrated circuit. The internal charge-pump voltage doubler/inverter eliminates the bulky ±12V supplies required by legacy RS-232 designs. Key features include an enhanced ESD protection of ±15 kV HBM on the RS-232 bus pins (driver outputs and receiver inputs), guaranteed 120 kbps data rate, and a low 1 uA supply current in shutdown. The MAX3222 is pin-, package-, and functionally compatible with the industry-standard MAX242, providing a low-power modern replacement for legacy designs. The MAX3222 architecture uses an internal dual charge pump (with external 0.1 uF flying and reservoir capacitors) to generate the +5.5V and -5.5V rails required by the RS-232 standard. It includes five receivers/drivers in companion parts (MAX3237 has 3 Rx / 5 Tx, MAX3241 has 5 Rx / 3 Tx) so designers can match port count to application without changing footprint. Typical applications include industrial point-of-sale terminals, networking equipment serial ports, embedded UART-to-RS-232 bridges, and legacy PC peripherals where a through-hole DIP form factor is preferred for hand-prototyping or repair. The wide 3.0V-5.5V supply range lets the same part work from a 3.3V MCU rail or a 5V logic rail. When designing with this device, place the four 0.1 uF charge-pump capacitors as close to the IC pins as possible to minimize supply ripple and meet RS-232 voltage levels under full load. For battery-powered designs, take advantage of the SHDN pin (active-low) to drop quiescent current to 1 uA between transmissions.

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