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ISL8391IB - 4-Channel 35Ω SPST Analog Switch | Renesas
ISL8391IB

ISL8391IB - 4-Channel 35Ω SPST Analog Switch | Renesas

The Renesas Electronics ISL8391IB is a low-voltage, single- and dual-supply, quad SPST CMOS analog switch with four independent 1:1 circuits, 35 Ω on-resistance, and a 16-SOIC package. It accepts a single +2 V to +12 V supply or a dual ±2 V to ±6 V supply, making it suitable for low-voltage signal routing. The verified product data identifies low power consumption below 1 µW, leakage current up to 2.5 nA, and fast switching as key application characteristics. An analog switch is an electronically controlled interface that connects or disconnects an analog signal path. The SPST designation means each channel has one pole and one throw, while quad indicates four switching elements in one package. This device sits between sensors, amplifiers, data converters, test equipment, and other signal-chain circuits where a control signal must route a voltage without continuously conducting it. Its CMOS implementation supports low static power and high input impedance. Key features include four independent channels, 35 Ω on-resistance, low leakage, and operation from either single or dual supplies. The single-supply range is +2 V to +12 V, while the dual-supply range is ±2 V to ±6 V. These values allow use in battery-powered equipment and low-voltage instrumentation. The device is identified as a 16-SOIC, surface-mount interface IC. The four-channel architecture reduces the number of discrete switch components required in multiplexed or reconfigurable analog paths. Its low power consumption is useful when battery life is important, while low leakage helps preserve signal amplitude in high-impedance nodes. Fast switching makes the device relevant to measurement, control, and signal-routing systems, although exact switching-time limits and logic thresholds require confirmation from the manufacturer datasheet. Typical applications include battery-powered instrumentation, automated test equipment, data acquisition, sensor interfaces, audio and communications signal routing, and industrial control systems. The ISL8391IB is especially relevant when a designer needs four SPST paths in one 16-SOIC package and can operate the device from a low-voltage single or dual supply. Designers should verify the control-pin polarity, allowable analog signal range, absolute maximum ratings, and switching-time parameters against the manufacturer datasheet before layout. Keep routing short, provide a solid ground reference, and account for the 35 Ω on-resistance when designing source and load impedances. This page combines verified manufacturer-product information, distributor identification, package data, and practical selection guidance. It distinguishes documented values from parameters requiring verification and avoids presenting unreferenced electrical or timing specifications as established facts.

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ISL8392IB - 4-Channel 35Ω SPST Analog Switch | Renesas
ISL8392IB

ISL8392IB - 4-Channel 35Ω SPST Analog Switch | Renesas

The Renesas Electronics ISL8392IB is a four-channel, 1:1 SPST CMOS analog switch with a typical on-resistance of 35 Ω, housed in a 16-SOIC package. It supports low-voltage single-supply operation from +2 V to +12 V or dual-supply operation from ±2 V to ±6 V. Four independent switches provide flexible signal routing for precision analog, measurement, test, and battery-powered equipment. An analog switch is a semiconductor-controlled pass element that connects or isolates circuit nodes under digital control. The ISL8392 family belongs to the interface IC hierarchy: analog switch → switch/multiplexer IC → interface integrated circuit. Its SPST configuration provides one conducting path per switch rather than a multi-channel multiplexer, making it useful when each signal requires independent routing. Verified device features include a maximum charge injection of 5 pC, on-resistance matching of 300 mΩ, and crosstalk of -89 dB at 1 MHz. The family data also identifies low power consumption of 1 µW, leakage current up to 2.5 nA, turn-on time of 60 ns, turn-off time of 30 ns, and maximum on-resistance flatness of 4 Ω. These characteristics suit signal paths where fast transitions, low leakage, and controlled charge injection are important. The switch architecture is designed for low-voltage precision routing rather than high-voltage power switching. Signal amplitude, supply range, input capacitance, control-logic levels, and switched leakage must all remain within device limits. Because ISL8392IB is listed as obsolete by GlobalSpec, new production designs should account for lifecycle risk and contact Renesas regarding supported sourcing before committing an active BOM. Typical uses include battery-powered sensor acquisition, multimeter and test-equipment input routing, sample-and-hold systems, data-acquisition modules, and low-power analog signal multiplexing. The 60 ns turn-on and 30 ns turn-off values can limit settling intervals, while 2.5 nA maximum leakage helps preserve weak-source measurements between switching events. Use the 16-SOIC footprint exactly as shown in the manufacturer pinout, and observe all control pins during unused channels. Do not infer the complete pin map or absolute maximum ratings from distributor snippets alone. Validate signal integrity, supply sequencing, and injected charge in the final analog channel because package parasitics and PCB capacitance can materially affect precision measurements. This page consolidates verified lifecycle, electrical, package, cross-reference, and sourcing information with engineering guidance that extends beyond a distributor listing. It also clearly separates confirmed data from parameters that still require datasheet or internal-inventory confirmation.

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ISL8393IB - 4-Channel SPST Analog Switch | Renesas
ISL8393IB

ISL8393IB - 4-Channel SPST Analog Switch | Renesas

Renesas Electronics ISL8393IB is a low-voltage, precision quad SPST analog switch with four independently controlled channels, low on-resistance, low leakage, and fast switching. It operates from a single +2 V to +12 V supply or from a dual ±2 V to ±6 V supply. The device is supplied in a 16-pin SOIC package, and the family specification identifies 35 ohm maximum on-resistance, 1 micro watt power consumption, 2.5 nA maximum low leakage, 60 ns typical turn-on time, and 30 ns typical turn-off time. An analog switch is an electronic routing component that connects or disconnects analog signals under digital control. A single-pole single-throw, or SPST, switch provides one controlled signal path. The ISL8393 combines four such paths in one package, making it useful for signal routing, test and measurement systems, data acquisition equipment, battery-powered instruments, and communication equipment. In the component hierarchy, it is an analog switch, also described as a CMOS analog switch or interface IC. The four separately controlled channels provide independent signal-path selection. The Renesas family page identifies pin-compatible replacements for the Maxim MAX391 through MAX393 family and for the DG411, DG412, and DG413 families. Its low 1 micro watt power consumption is particularly valuable in battery-operated equipment, while the 2.5 nA maximum leakage specification helps preserve sensor and measurement accuracy when a channel is disconnected. Switching performance is optimized for short transition intervals: the family specification lists 60 ns typical turn-on time and 30 ns typical turn-off time. The 35 ohm maximum on-resistance is suitable for general low-voltage signal-routing applications where resistance variation and leakage are more important than very low ohmic values. A 1 ohm channel-to-channel resistance-matching specification helps preserve balance between channels in matched systems. Typical uses include battery-powered test equipment, portable measurement systems, communication equipment, and analog signal multiplexing arrangements. The wide single- and dual-supply ranges allow the same device family to operate from low single-cell or dual-rail systems. Control signals should be compatible with the selected supply configuration, and unused control or signal pins must follow the manufacturer datasheet guidance. The principal design trade-off is on-resistance versus power and leakage performance. The ISL8393 prioritizes low power, low leakage, compact integration, and fast switching rather than ultra-low resistance. Designers should verify signal amplitude, bandwidth, charge injection, off isolation, and supply compatibility against the manufacturer datasheet before finalizing a high-precision application. This page consolidates verified family specifications, manufacturer-supported pin-compatible references, procurement data, comparison parameters, and practical engineering guidance. It distinguishes documented values from parameters that require confirmation from the full datasheet, providing a practical starting point for schematic capture, footprint selection, and replacement planning.

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ISL8394IB - Quad SPDT Analog Switch | Renesas Electronics
ISL8394IB

ISL8394IB - Quad SPDT Analog Switch | Renesas Electronics

Renesas Electronics ISL8394IB is a precision quad SPDT analog switch with four independently controlled switches, a 35 ohm maximum on-resistance, and a 20-pin SOIC package. It operates from a single +2V to +12V supply or from a ±2V to ±6V dual supply. Typical on-resistance is 17 ohms, while on-resistance matching between channels is 1 ohm. The device supports TTL- and CMOS-compatible control signals. An analog switch is an integrated semiconductor that routes analog signals between circuit nodes under digital control. The ISL8394 belongs to the analog-switch and multiplexer hierarchy, where an SPDT switch selects one of two signal paths per common terminal. Four separately controlled SPDT circuits provide flexible signal routing for test, measurement, communication, and battery-powered equipment. This makes the ISL8394 more useful than a single fixed multiplexer when several independent connections must be switched. Key performance characteristics include fast transition times of 50 ns for turn-on and 30 ns for turn-off. Charge injection is limited to 10 pC, helping control timing errors when the device switches low-level or high-impedance signals. Maximum leakage current at 85°C is 2.5 nA, and typical power consumption is 5 microwatts. The manufacturer also specifies a maximum on-resistance flatness of 4 ohms, providing more consistent channel resistance across the operating signal range. The device accepts single or dual power rails, which supports both conventional positive-supply designs and bipolar signal paths. Each SPDT switch has a separate control input, allowing independent routing decisions. Break-before-make operation is guaranteed, while minimum 2,000 V ESD protection per Method 3015.7 improves robustness against electrostatic discharge encountered during handling or testing. Typical uses include battery-powered instrumentation, signal-path multiplexing, automated test equipment, communication interfaces, and portable measurement systems. The low 5 microwatt power consumption and 2.5 nA maximum leakage are especially useful when preserving battery life or measuring high-impedance sources. The 20-SOIC package also supports conventional surface-mount assembly methods. Designers should account for the 35 ohm maximum on-resistance, 10 pC maximum charge injection, and control-signal timing when selecting capacitors, amplifiers, or downstream circuits. Designers should also verify the exact pin functions, supply sequence, and operating limits against the manufacturer datasheet before layout because the public web data provided for this page does not include a complete pin table. This page consolidates the verified manufacturer and distributor data for the ISL8394IB, adds application-focused engineering context, and distinguishes verified drop-in references from package or sourcing variants that should not be treated as PCB drop-in replacements.

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ISL84467IRTZ - Quad SPDT Analog Switch, 0.39Ω rON, 1.65-4.5V | Renesas
ISL84467IRTZ

ISL84467IRTZ - Quad SPDT Analog Switch, 0.39Ω rON, 1.65-4.5V | Renesas

The Renesas (formerly Intersil) ISL84467IRTZ is an ultra-low ON-resistance, low-voltage, bidirectional Quad SPDT (Dual DPDT) analog switch housed in a 16-pin TQFN (3x3 mm) package. The device operates from a single +1.65V to +4.5V supply, delivers a typical ON resistance of 0.39Ω, and supports switching speeds of tON = 33ns and tOFF = 16ns. The 1.8V logic-compatible digital inputs allow direct interfacing with modern low-voltage microcontrollers without level shifters, making the part attractive for portable and battery-powered designs where both signal integrity and low quiescent drain matter. An analog switch (also called an analog multiplexer or bilateral switch) is a solid-state device that uses MOSFET transistors to route analog or digital signals between input and output pins under digital control. Quad SPDT (Single Pole Double Throw) means the device contains four independent 2:1 switches, each capable of selecting between two signal paths. Compared to electromechanical relays, analog switches offer far faster switching, no contact bounce, lower power, and indefinite mechanical life, but they have limited voltage handling and finite OFF isolation. Key features of the ISL84467IRTZ include 0.39Ω typical rON (which minimizes signal attenuation and distortion for low-level audio or precision analog signals), 1.8V logic-compatible inputs across the full supply range, break-before-make switching action to prevent momentary shorts between adjacent channels, and ESD protection on the logic and signal pins. The bidirectional signal path means each switch can carry signals in either direction with identical AC performance, simplifying PCB routing when source and destination roles are not predetermined. The four SPDT switches are organized as two DPDT (Double Pole Double Throw) pairs that switch in tandem, useful for differential signal routing in audio, USB, or data-acquisition front ends. The TQFN-16 package with an exposed pad provides low thermal resistance and a small 3x3 mm footprint, suitable for high-density handheld equipment. Targeted applications per the manufacturer datasheet include battery-powered portable instruments, audio/video signal routing, mobile handsets, and handheld test equipment. When designing with the ISL84467IRTZ, observe the absolute maximum signal voltage (typically equal to V+ plus ESD diode drops) and place decoupling capacitors close to the V+ pin. For low-distortion audio applications, the low rON and low charge injection of this switch help preserve signal fidelity; designers should still account for switch capacitance in bandwidth-limited paths. This page synthesizes distributor pricing, drop-in alternatives, and design notes not found in the manufacturer datasheet alone.

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ISL84521IB - 100Ω Quad SPST Analog Switch | Renesas
ISL84521IB

ISL84521IB - 100Ω Quad SPST Analog Switch | Renesas

The Renesas Electronics ISL84521IB is a low-voltage CMOS analog switch IC containing four independently controlled single-pole single-throw switches, with a maximum on-resistance of 100Ω and operation from single or dual supplies. The device is offered in a 16-pin SOIC package and is designed for low-power signal-routing applications. An analog switch is an integrated interface circuit that connects or disconnects a signal path under digital control. A single-pole single-throw switch provides one independently selectable route, while a quad analog switch combines four such switches in one IC. The ISL84521 belongs to the analog-switch, interface-IC, and semiconductor hierarchy and can serve as a low-voltage multiplexing or sampling element in test, measurement, communication, and industrial control systems. Key features include four separately controlled SPST switches, a 100Ω maximum on-resistance, channel matching of 1Ω, 1µW low power consumption, and 10nA maximum leakage current at 85°C. Switching timing is specified as 45ns typical turn-on and 15ns typical turn-off, while break-before-make operation helps prevent undesirable current paths during transitions. The ISL84521 supports single-supply operation from 3V to 12V and dual-supply operation from ±3V to ±6V. Its CMOS implementation supports TTL-compatible control inputs and low power consumption. Four independent controls allow separate signals to be routed without requiring multiple single-switch packages, reducing board area in multi-channel analog systems. Typical uses include battery-powered test equipment, programmable signal conditioning, communication-interface routing, industrial control modules, and precision measurement systems. The low 15ns typical turn-off time is useful when the application requires rapid isolation or discharge paths, while the 100Ω maximum on-resistance should be considered in high-impedance analog nodes. For layout, place each switched signal trace close to its assigned switch pin and keep control traces away from sensitive analog paths. Confirm input and output voltage limits against the selected supply configuration. Account for the 100Ω maximum channel resistance, 1Ω matching specification, and leakage when calculating circuit errors. This page combines manufacturer specifications, package details, application guidance, and a focused replacement analysis. It also identifies the limits of drop-in substitution by separating same-footprint options from parts requiring a different package, helping engineers shorten sourcing and design-review time.

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ISL84543CB - Dual SPST Analog Switch, 60 Ohm, 8-SOIC | Renesas
ISL84543CB

ISL84543CB - Dual SPST Analog Switch, 60 Ohm, 8-SOIC | Renesas

Renesas Electronics ISL84543CB is a dual, single-pole single-throw analog switch with a 1:1 signal configuration, 60 ohm on-resistance, and an 8-pin SOIC package. Designed for single-supply operation, the device accepts a +2.7 V to +12 V supply and is characterized at 3.3 V and 5 V, making it suitable for low-voltage analog routing in battery-powered and portable equipment. An analog switch is a semiconductor interface that connects or disconnects signal paths under digital control. The ISL84543CB belongs to the analog-switch hierarchy, where a multiplexer or demultiplexer is used to route signals among multiple endpoints. Its dual SPST architecture provides two independently controlled switching functions, allowing analog, test, measurement, or peripheral signals to be selected without duplicating surrounding circuitry. The family is specified for low-voltage, single-supply operation. A 60 ohm on-resistance provides a defined path impedance for many low-frequency and moderate-impedance analog circuits, while the dual-channel construction supports compact signal routing. Operation is also identified at 3.3 V and 5 V supply levels, covering common consumer, industrial, communication, and portable-system rails. The ISL84543CB is intended to add routing capability to systems with limited analog inputs or general-purpose I/O. Its two switch sections can be used independently, and the device is associated with drop-in replacements for MAX4541, MAX4544, and DG9263. These cross-references are important when maintaining an existing 8-SOIC layout or reducing design changes during component sourcing. Typical uses include battery-powered test equipment, analog measurement systems, peripheral selection, signal isolation, and compact embedded interfaces. Because the device operates from a single supply, it can simplify rails in portable systems where generating additional bipolar or split-supply voltages would be undesirable. When designing around the ISL84543CB, account for the 60 ohm path resistance and control-logic levels when interpreting signal attenuation, settling behavior, and logic compatibility. Keep routing traces short, provide a low-impedance supply connection near the device, and verify the control inputs against the voltage levels produced by the host microcontroller. Use the manufacturer pin-description table when assigning PCB tracks. This product page consolidates the exact ordering information, verified technical characteristics, documented cross-references, and practical design guidance for engineers evaluating the ISL84543CB in compact, single-supply analog-routing designs.

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ISL84544CB - Dual SPST 60Ω Analog Switch | Renesas
ISL84544CB

ISL84544CB - Dual SPST 60Ω Analog Switch | Renesas

The Renesas Electronics ISL84544CB is a precision dual analog switch configured as a 2:1 multiplexer, with a listed on-resistance of 60 ohm and an 8-pin SOIC package. It operates from a single +2.7 V to +12 V supply, making it suitable for low-voltage signal routing in battery-powered, industrial, communications, and test equipment. The switch combines fast transition times, low charge injection, and low leakage in a compact surface-mount package. An analog switch is an electrically controlled semiconductor that connects or disconnects analog signal paths while preserving the selected voltage. The ISL84544CB belongs to the analog switch and multiplexer hierarchy within interface ICs and semiconductor signal-routing systems. Its single-supply operation supports both 3.3 V and 5 V equipment, while its dual SPST arrangement can form a 2:1 analog multiplexer for selecting between two signal sources. According to the Renesas product information, key advantages include fully specified operation at 3.3 V and 5 V, on-resistance matching between channels below 1 ohm, maximum charge injection of 5 pC, and power consumption below 5 microwatts. Switching times are listed as 35 ns for turn-on and 25 ns for turn-off. The device also provides guaranteed break-before-make behavior and minimum 2,000 V ESD protection, which are important for preventing momentary input overlap. The ISL84544 family is designed for precision, low-voltage analog routing. Its low power dissipation reduces loading in portable systems, and its low charge injection limits command-induced voltage disturbances in measurement and signal-conditioning circuits. The matching between channel on-resistances is particularly useful when both selected paths must present similar impedance to a following amplifier, ADC, or sensor interface. Typical applications include battery-powered instrumentation, data-acquisition front ends, test and measurement equipment, communications interfaces, and precision sensor multiplexing. The dual SPST topology is particularly useful when two inputs must share one downstream converter or amplifier. It can also be used for sample-and-hold or signal-isolation functions when the control timing and break-before-make requirement are properly observed. Designers should account for input and output signal amplitudes, control-logic levels, switch on-resistance, and off leakage when defining the system bandwidth. Keep sensitive routing paths short, use a defined control state during power transitions, and verify that the 2:1 configuration matches the intended schematic rather than assuming a conventional dual-SPDT pinout. The manufacturer datasheet pin-description table should be used for final PCB routing and logic assignment. This product page combines the Renesas family specifications with package-level selection guidance, same-footprint alternatives, parameter comparisons, and practical implementation notes. These resources help engineers distinguish drop-in options from functionally similar devices and identify the electrical conditions that determine whether the ISL84544CB is suitable for a specific analog-routing design.

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ISL84762IU - 600mOhm Dual SPDT Analog Switch | Renesas
ISL84762IU

ISL84762IU - 600mOhm Dual SPDT Analog Switch | Renesas

The Renesas Electronics ISL84762IU is a low-voltage, dual SPDT analog switch with 600mOhm nominal on-resistance, two independently selectable 2:1 circuits, and a 10-pin MSOP package. It operates from 1.65V to 3.6V and supports bidirectional signal paths, making it suitable for low-voltage analog routing, test equipment, and portable instrumentation. An analog switch is a semiconductor device that connects or disconnects an analog signal path under digital control. The SPDT configuration selects one of two terminals from a common terminal, while the dual-circuit architecture provides two independently controlled switches. The ISL84762IU combines this routing function with low on-resistance, low-voltage operation, and a compact surface-mount package suitable for space-constrained equipment. Key characteristics include a 120 MHz bandwidth, a 6ns transition time, a 14ns switching time, and a 224pF switch capacitance. The operating temperature range is -40°C to +85°C. These characteristics are important for systems that route signals generated by sensors, converters, amplifiers, or data-acquisition front ends while command signals are driven by low-voltage digital logic. The device is described as ultra-low-on-resistance and low-voltage, with operation from 1.65V to 3.6V. Its on-resistance value must be interpreted together with the manufacturer test conditions, including supply voltage and signal amplitude, because the effective resistance and switching behavior can vary with operating conditions. Control pins support 1.8V-compatible digital operation when the device operates from a 3V supply. Typical uses include portable measurement systems, battery-powered test equipment, mobile-phone and handheld signal routing, communication interfaces, and analog front ends requiring two independent SPDT paths. The compact 10-pin MSOP footprint helps reduce board area, while the bidirectional switch structure supports signal routing in either direction. Designers should verify control-pin logic levels, supply sequencing, allowable analog signal range, and switching transients against the manufacturer datasheet. Keeping routing traces short and placing the device near the signal source helps limit parasitic capacitance and interference, particularly when driving sensitive analog nodes. This product page combines the core electrical characteristics, package information, application guidance, and replacement considerations into an engineering-focused view of the ISL84762IU. It also highlights the limits of a drop-in replacement decision when package geometry and control behavior must be checked rather than inferred from the switch function alone.

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ISL84781IR - 8:1 Analog Multiplexer, 750mOhm, 16-TQFN | Renesas Electronics
ISL84781IR

ISL84781IR - 8:1 Analog Multiplexer, 750mOhm, 16-TQFN | Renesas Electronics

The Renesas Electronics ISL84781IR is an 8-to-1 analog multiplexer designed for low-voltage, low-power signal routing. It provides a 750 mOhm on-resistance rating, operates from a single 1.6 V to 3.6 V supply, and is available in a 16-pin thin QFN package measuring 3 x 3 mm. The device supports rail-to-rail analog signals and includes digital address inputs that are 1.8 V logic-compatible when operated from a 3 V supply. An analog multiplexer is a semiconductor switching device that routes one of several input signals to a common output. The ISL84781IR belongs to the broader interface IC and analog switch hierarchy, combining an 8:1 signal topology with low-voltage operation, low leakage, and fast switching. Its single-supply architecture is useful where system rails are limited to low voltages and where preserving signal amplitude across the selected channel is important. The ISL84781IR offers an on-resistance of 0.4 ohm with a 3.0 V supply and 0.55 ohm with a 1.8 V supply. Typical channel matching is 0.12 ohm, while on-resistance flatness across the signal range is 0.056 ohm. The low-voltage operation is supported by a supply range of 1.6 V to 3.6 V, and power consumption is specified below 0.2 microwatts in the manufacturer product-page summary. Fast switching makes the device suitable for instrumentation, test and measurement, communications, and other systems that need to select among multiple analog inputs. The manufacturer lists turn-on time of 16 ns and turn-off time of 13 ns with a 3 V supply. Break-before-make operation is guaranteed, helping prevent two channels from being connected together during address transitions. An inhibit input can simultaneously open all signal paths, providing a controlled way to isolate the selected channel. The 16-pin thin QFN package supports compact PCB layouts, but its exposed pad and pin-assignment requirements should be followed exactly. Use the manufacturer pin-description table when assigning tracks, and keep analog routing away from fast digital edges. The low on-resistance makes the part useful for low-impedance sensor and signal-chain nodes, while the rail-to-rail signal capability helps preserve dynamic range when the input range approaches the supply limits. This page combines manufacturer specifications, cross-reference information, design guidance, and practical application notes for engineers evaluating the ISL84781IR in compact low-voltage routing systems.

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ISL8483IB - 250kbps Half-Duplex RS-485/RS-422 IC | Renesas
ISL8483IB

ISL8483IB - 250kbps Half-Duplex RS-485/RS-422 IC | Renesas

Renesas Electronics ISL8483IB is a 5 V, 250 kbps half-duplex RS-485/RS-422 transceiver with separate receiver and transmitter enables, low-power shutdown, and optional slew-rate-limited operation in an 8-pin SOIC package. The part is designed for industrial-grade, point-to-point and multidrop serial-interface systems requiring bidirectional data transfer over a balanced cable. An RS-485/RS-422 transceiver is an interface IC that converts between logic-level digital signals and differential bus voltages. RS-422 provides a driver-dominant, point-to-point signaling method, while RS-485 permits multiple drivers on a shared bus when only one node transmits at a time. The ISL8483IB combines one transmitter and one receiver in one package, supporting half-duplex communication over a common pair of differential conductors. Key features include a 250 kbps data rate, a 5 V supply, separate Rx and Tx enables, and a low-power shutdown function. The verified distributor description also identifies a slew-rate-limited configuration option. Slew-rate control reduces the edge speed of transmitted signals, limiting high-frequency harmonics and electromagnetic interference at the expense of maximum signaling rate compared with an unrestricted high-speed driver. The ISL8483IB uses separate active-high receiver-enable and driver-enable controls, allowing the host to place the unused side of the transceiver into a disabled state. Its bidirectional half-duplex arrangement is useful where two endpoints exchange requests and responses over a shared pair of wires. The device also supports transmitter shutdown for systems that need to reduce supply consumption when the bus is inactive. Typical applications include industrial serial interfaces, remote monitoring equipment, data acquisition modules, building-control systems, factory automation links, and RS-485-to-TTL conversion products. The 8-pin SOIC package supports conventional surface-mount assembly. The industrial temperature grade identified by the verified distributor listing makes the device suitable for equipment operating across an extended commercial temperature range, subject to the manufacturer's specified limits. Designers should verify the complete datasheet pinout, absolute maximum ratings, recommended external network, driver-load capability, and shutdown behavior before releasing a PCB. Cabling, termination, grounding, and transceiver-enable sequencing are as important as the nominal 250 kbps rating because unbalanced or incorrectly terminated buses can cause reflections, common-mode voltage errors, and unreliable communication. This page combines verified distributor information, structured drop-in-family alternatives, application guidance, and design notes in a format designed to accelerate component selection, replacement planning, and hardware implementation.

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ISL8483IP - 5V RS-485/RS-422 Transceiver | Renesas
ISL8483IP

ISL8483IP - 5V RS-485/RS-422 Transceiver | Renesas

Renesas ISL8483IP is a single half-duplex RS-485/RS-422 transceiver operating from a 5 V supply, with selectable low-power high-speed or slew-rate-limited operation. The device combines one transmitter and one receiver in an 8-pin PDIP package and includes separate receiver and transmitter enables plus a low-power shutdown function. Verified distributor data identifies the ISL8483IP as a 250 kbps half-duplex RS-485/RS-422 transceiver with Rx/Tx enables and low-power SHDN. The package is specified as 8-DIP, or 8-PDIP, with a 0.300 inch, 7.62 mm body width. An RS-485/RS-422 transceiver is a balanced-interface interface IC used to connect a logic-level controller to a differential communication bus. RS-422 generally describes a point-to-point, balanced digital interface, while RS-485 supports multipoint bus arrangements and commonly uses transceivers that can disable their drivers when idle. The ISL8483IP belongs to the interface IC hierarchy and is intended for industrial-control, instrumentation, and embedded serial links requiring a 5 V supply and differential noise immunity. The verified data identifies a maximum signaling rate of 250 kbps and offers two operating approaches described as high speed or slew-rate limited. These modes are relevant when a design must balance communication rate against the transition rate of the differential driver. Additional control features named in the source material are the receiver enable, transmitter enable, and low-power shutdown input, allowing the host to manage bus direction and conserve power when communication is inactive. The ISL8483IP uses BiCMOS technology in the Intersil RS-485 and RS-422 product family. Although the provided search results describe the family as meeting both RS-485 and RS-422 standards, detailed limits for differential output voltage, receiver threshold, common-mode range, supply-current behavior, and isolation are not included in the supplied excerpts. Those parameters therefore require confirmation in the manufacturer datasheet before final circuit release. Typical applications include industrial sensor and actuator links, factory automation equipment, building-control systems, laboratory instrumentation, and embedded controllers communicating with remote RS-485 peripherals. The 250 kbps rate is appropriate for moderate-speed control and monitoring networks rather than high-bandwidth data transfer. In a multidrop bus, only one transmitter should normally be active at a time, while the receiver can monitor bus state when its driver is disabled. A key design consideration is the distinction between the PDIP and surface-mount ISL8483 package variants. Cross-reference results explicitly identify ISL8483EIBZ-T and ISL8483EIBZ-T7A as SOIC-8 surface-mount parts, so they are not drop-in replacements for an 8-PDIP board footprint. Before routing a replacement PCB, verify supply voltage, data rate, enable polarity, shutdown behavior, pinout, and transceiver-versus-receiver configuration against the manufacturer datasheet. This page consolidates the verified distributor descriptions, package distinctions, sourcing links, and practical replacement constraints into an engineering-focused view. It also identifies where the supplied evidence is incomplete, avoiding unsupported claims about pin assignments, electrical limits, lifecycle state, pricing, and thermal performance. Those fields should be completed from the authoritative manufacturer datasheet and current authorized distribution records.

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ISL8484IR - 4.5V Dual SPDT Low-RON Switch | Renesas
ISL8484IR

ISL8484IR - 4.5V Dual SPDT Low-RON Switch | Renesas

The Renesas Electronics ISL8484IR is a low-voltage, bidirectional, dual single-pole/double-throw analog switch with an ultra-low ON-resistance, a +1.65 V to +4.5 V single-supply range, and a 10-pin DFN package with an exposed pad. Its specified ON-resistance is 0.29 ohm at a 4.3 V supply, 0.33 ohm at 3.0 V, and 0.55 ohm at 1.8 V. The device contains two independently controlled SPDT switches, allowing one signal or supply path to be routed between two external nodes at a time. Typical on-resistance matching between channels is 0.06 ohm, while ON-resistance flatness across the signal range is 0.03 ohm. An analog switch is a semiconductor device that connects or disconnects an electrical signal path with controlled resistance. In the product hierarchy, the ISL8484IR is an analog switch and multiplexer within the broader interface IC category. Each SPDT configuration provides a common terminal, one normally closed throw, and one normally open throw, making the device useful for signal routing, polarity selection, test-point isolation, and compact analog multiplexing. The defining feature of the ISL8484IR is its low channel resistance across a low-voltage supply range. The manufacturer datasheet also identifies it as a pin-compatible replacement for the MAX4684 and MAX4685. Its low power consumption, specified below 0.45 microwatt in the cited operating conditions, and fast switching behavior make it appropriate for battery-powered and portable equipment where signal-path resistance and energy use both matter. The two independent SPDT switches provide routing flexibility without requiring two separate packages. Matching and flatness characteristics help reduce channel-dependent attenuation and distortion when a design switches between sources or measures multiple nodes. The bidirectional signal path also permits operation in either current direction, although the permitted voltage and current limits must remain within the manufacturer ratings. Typical uses include low-voltage audio routing, sensor selection, test and measurement interfaces, portable instrumentation, and general-purpose power or signal multiplexing. The low 1.65 V minimum supply supports systems operating from a single lithium-cell rail or other low-voltage source. In precision analog paths, engineers should verify the actual ON-resistance, leakage, charge injection, and switching timing under the intended signal amplitude and frequency. The primary design consideration is preserving the exposed-pad thermal and electrical requirements of the 10-DFN package. Place the exposed pad on a PCB thermal-via and ground-plane structure, keep high-current paths physically short, and confirm the selected switch state during power-up. Because the supplied search data does not include the complete pin table, engineers should download the Renesas datasheet before assigning signals to physical pins. This page consolidates the verified manufacturer description, parametric ON-resistance data, operating-voltage range, package information, and cross-reference evidence. It also distinguishes documented drop-in replacements from package or packaging variants that are not true PCB drop-in choices, helping engineers evaluate replacement risk before redesigning a board.

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ISL8484IU - Dual SPDT Low-Voltage Analog Switch | Renesas
ISL8484IU

ISL8484IU - Dual SPDT Low-Voltage Analog Switch | Renesas

Renesas Electronics ISL8484IU is a dual single-pole/double-throw analog switch with a single-supply operating range of +1.65 V to +4.5 V and an ultra-low on-resistance. The device contains two independent SPDT switch circuits in a 10-MSOP package and is designed for low-voltage, low-power signal-routing applications. Its stated on-resistance is 500 mOhm, while the available technical data also identifies 290 mOhm at a 4.3 V supply and 550 mOhm at a 1.8 V supply. An analog switch is an integrated interface circuit that routes electrical signals between terminals under digital control. A dual SPDT switch provides two selectable signal paths per switch section, making it useful for selecting one of two sources, routing a measurement signal, or supporting bidirectional communication. The ISL8484 belongs to the broader hierarchy of analog switches, multiplexers, interface ICs, and semiconductors. The principal feature of the ISL8484IU is its low on-resistance across a low-voltage supply range. Available data lists on-resistance matching between channels as 0.06 Ohm and on-resistance flatness across the signal range as 0.03 Ohm. Power consumption is specified below 0.45 uW, while fast switching action is available when the supply is 4.3 V. These characteristics suit compact equipment operating from a single low-voltage rail. The device uses separate select and common terminals for each SPDT section. The 10-MSOP surface-mount package is offered in a 0.118-inch by 3.00 mm width format. The supplied data identifies the industrial temperature grade and 10 terminals. A publicly verified pin-number-to-pin-name diagram was not present in the supplied results, so the exact pinout is intentionally left unassigned rather than inferred from generic package conventions. Typical uses include low-voltage audio routing, sensor and measurement-signal selection, portable test equipment, communication-signal multiplexing, and compact industrial interfaces. For bidirectional signal paths, the control and common terminals must be operated within the voltage limits specified by the manufacturer datasheet. Care is required when switching powered signals because the exact overvoltage and break-before-make behavior should be confirmed from the current datasheet. A primary design consideration is the relationship between supply voltage and switch resistance. Lower supply operation provides less headroom for the internal switch and corresponds to higher resistance, while operation near 4.5 V provides the lower-resistance behavior listed in the available data. PCB layout should keep routing short and provide a stable return path, especially when the switch handles high-bandwidth or low-amplitude signals. This product page consolidates the verified manufacturer description, distributor inventory information, package details, switch characteristics, cross-reference findings, and practical engineering guidance. It also separates verified facts from unavailable values so designers can identify the target part quickly while recognizing which parameters still require confirmation in the current manufacturer datasheet.

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ISL8484IUZ - Dual SPDT Analog Switch, 0.29 Ohm | Renesas
ISL8484IUZ

ISL8484IUZ - Dual SPDT Analog Switch, 0.29 Ohm | Renesas

The Renesas Electronics ISL8484IUZ is a dual single-pole/double-throw (SPDT) analog switch with 0.29 ohm ON-resistance at V+ = 4.3 V, operating from a single +1.65 V to +4.5 V supply, and packaged in a 10-lead MSOP (10-TFSOP). Each switch routes one common node to one of two throws, giving two independent 2:1 muxes in one IC. An analog switch (also called a mux or multiplexer) is an integrated circuit that steers a signal path between multiple sources and destinations under digital control. It belongs to the signal-path hierarchy: analog switch -> multiplexer -> interface IC -> integrated circuit. Unlike a relay or mechanical contactor, it switches in nanoseconds, draws micro-watts of power, and introduces only a small, well-characterized series resistance plus a few picofarads of parasitic capacitance. Key features of the ISL8484IUZ include very low ON-resistance that stays flat across the signal range, excellent channel-to-channel rON matching of 0.06 ohm, low power consumption below 0.45 microwatts, fast switching of 40 ns tON and 20 ns tOFF at V+ = 4.3 V, guaranteed break-before-make behavior, and an HBM ESD rating of greater than 8 kV. The manufacturer also documents the ISL8484 family as a pin-compatible replacement for the MAX4684 and MAX4685. Because ON-resistance is only 0.29 ohm and rON flatness across the signal range is 0.03 ohm, the device behaves almost like a shorted trace when closed. This makes it well suited to routing low-frequency analog signals, sensor outputs, reference voltages, and baseband paths where added resistance would degrade accuracy. The very low switching energy keeps the switch usable in battery-powered and portable equipment. Typical uses include audio and headphone signal routing, portable test equipment, battery-powered sensor interfaces, USB and peripheral routing in low-voltage designs, and general-purpose analog multiplexing in consumer and industrial systems running from 1.8 V to 3.3 V rails. The key design consideration is supply headroom: the switch operates down to +1.65 V, but ON-resistance rises sharply as V+ falls (0.55 ohm at 1.8 V versus 0.29 ohm at 4.3 V). Budget the signal-path error against the highest rail in your system, and treat the control pins as logic inputs referenced to the same V+ supply.

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ISL8485CB - 5V 5Mbps RS-485/RS-422 Transceiver | Renesas
ISL8485CB

ISL8485CB - 5V 5Mbps RS-485/RS-422 Transceiver | Renesas

The Renesas Electronics ISL8485CB is a 5V, low-power, high-speed RS-485/RS-422 half-duplex transceiver in an 8-pin SOIC package. It combines one driver and one receiver in a single integrated circuit for balanced industrial communication links, with a verified data rate of up to 5Mbps. The device operates from a single 5V supply and supports both high-speed and slew-rate-limited communication modes. Its 8-SOIC package is suitable for conventional surface-mount PCB assembly, while its half-duplex architecture allows one transceiver to share a bidirectional bus with controlled driver enable and receiver enable functions. An RS-485/RS-422 transceiver is an interface IC that converts logic-level digital signals into balanced differential signals and receives differential signals back into CMOS-compatible logic levels. The ISL8485CB belongs to the transceiver hierarchy of interface ICs, where RS-422 provides a balanced point-to-point or multidrop communication format and RS-485 supports longer, noise-tolerant multipoint buses. The part is intended for systems that require compact, reliable differential signaling rather than a single-ended communications interface. The primary electrical attributes include a 5V supply, a 5Mbps data rate, one integrated driver, and one integrated receiver. The manufacturer family documentation identifies the ISL8485 as a CMOS 5V-powered RS-485/RS-422 transceiver family with low power consumption and both high-speed and slew-rate-limited configurations. The verified distributor description identifies the CB ordering code as an 8-SOIC, while the manufacturer document covers the related ISL8485, ISL8490, and ISL8491 family. Typical uses include industrial control systems, factory automation, instrumentation, building automation, and embedded equipment connected through a balanced bus. In a half-duplex network, the transceiver converts transmitted data into differential bus voltage and receives remote data when the driver is disabled. The 5Mbps capability supports high-rate factory communication, while slew-rate limiting can reduce reflected signaling on longer or less controlled cables. Designers should verify the complete pinout, enable polarity, driver and receiver disable behavior, termination requirements, and electrical limits against the Renesas datasheet before layout. RS-485 buses normally need termination at both physical ends, biasing to provide a defined idle state, and protection appropriate to the installation environment. The 8-SOIC package requires thermal and layout attention at elevated data rates or long-cable installations.

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ISL8485CP - 5V RS-485/RS-422 Transceiver | Renesas
ISL8485CP

ISL8485CP - 5V RS-485/RS-422 Transceiver | Renesas

Renesas ISL8485CP is a 5 V, low-power, half-duplex RS-485 and RS-422 interface transceiver with one driver and one receiver, supplied in an 8-pin through-hole PDIP package. It is designed for balanced industrial communication links where a single transceiver must support both differential transmit and receive operation. The verified distributor data identifies the device as a 1/1 RS-422 and RS-485 transceiver in an 8-PDIP package. A transceiver combines a differential line driver and differential receiver into one interface component. In the transmit direction, the driver converts a logic-level signal into a balanced differential voltage across a twisted-pair bus; in the receive direction, the receiver converts the differential bus voltage back into a logic-level signal. RS-422 commonly supports point-to-point, balanced signaling, while RS-485 permits multiple drivers and receivers on a shared bus when the system implements the required addressing, biasing, and contention controls. The ISL8485CP family is identified as a low-power 5 V RS-485/RS-422 solution with options described by the manufacturer as high-speed or slew-rate-limited. This distinction is important when designing a bus: slew-rate control can reduce high-frequency ringing and electromagnetic interference, while a high-speed configuration can improve propagation delay. The exact speed, slew-rate, output-current, and receiver-threshold limits are not present in the supplied verified excerpts and must be confirmed in the manufacturer datasheet before final circuit design. The device is implemented in an 8-PDIP package for through-hole assembly rather than a compact surface-mount land pattern. This makes it suitable for industrial controllers, data-acquisition equipment, instrumentation, and legacy interface boards where DIP soldering, prototyping, or through-hole serviceability is preferred. The balanced interface also helps reject common-mode noise when the transmitter and receiver reference a common signal ground and the cable routing is controlled. Typical applications include factory-floor serial links, industrial control modules, remote sensor interfaces, laboratory equipment, and building automation equipment. Designers should confirm the device's exact drive strength, receiver thresholds, data rate, enable or shutdown behavior, and bus termination requirements from the full datasheet. They should also verify whether a fail-safe receiver, ESD rating, slew-rate selection, or automotive qualification is required for the target environment. This page combines verified distributor availability, package information, pricing data, source links, and replacement analysis with practical RS-485 design guidance. It deliberately distinguishes confirmed facts from parameters that still require datasheet verification, helping engineers evaluate the ISL8485CP without mistaking incomplete web snippets for complete technical specifications.

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ISL8485IB - 5Mbps RS-485/422 Transceiver | Renesas
ISL8485IB

ISL8485IB - 5Mbps RS-485/422 Transceiver | Renesas

Renesas Electronics ISL8485IB is a single half-duplex RS-485/RS-422 transceiver with one driver and one receiver, a maximum data rate of 5 Mbps, and a 5 V supply in an 8-pin SOIC package. The ISL8485IB uses BiCMOS technology and is specified for 4.5 V to 5.5 V power supplies, including the 10% supply tolerance identified on the Renesas product page. Its industrial temperature range extends from -40°C to +85°C. An RS-485/RS-422 transceiver is a differential communications interface IC that converts logic-level transmit and receive signals into balanced, noise-immune bus signals. The ISL8485 family supports both RS-485 half-duplex operation and RS-422 balanced operation. The ISL8485 configuration multiplexes its driver output and receiver input onto the same pair of bus terminals, allowing a compact eight-pin implementation. The principal features include a 5 Mbps maximum data rate, low-power BiCMOS construction, operation from a nominal 5 V rail, and a single-unit-load RS-485 bus interface. Half-duplex operation requires the design to control the driver-enable and receiver-enable functions so that the transmitter is disabled when the bus is not being driven. These characteristics make the device appropriate for industrial data links, instrumentation, factory equipment, and point-to-point or multidrop balanced communication. The ISL8485IB is one of three related devices: the ISL8485 provides half-duplex multiplexing, while the ISL8490 and ISL8491 provide separate receive and transmit paths for full-duplex applications. The Renesas ISL8485, ISL8490, and ISL8491 datasheet identifies these architectural differences explicitly. Because bus topology and enable logic affect protocol behavior, an existing PCB should be checked for pin functions before selecting a related family member. Typical installations include RS-485 industrial sensor networks, RS-422 controller-to-peripheral links, building-control equipment, and data-acquisition systems. The 5 Mbps capability supports faster communication than legacy low-speed RS-485 links, while the differential interface helps reject common-mode noise when the transceiver is used with correctly terminated cabling. Designers should verify the eight-pin pinout, supply decoupling, driver-enable sequencing, bus termination, and protection requirements against the manufacturer datasheet. Differential routing should use a controlled-impedance layout where practical, and the unused bus terminals must be handled according to the applicable RS-485 or RS-422 configuration. This page consolidates the verified Renesas and distributor information for the ISL8485IB, documents pin-compatible alternatives with their differences, and provides practical interface-design guidance that is not available from a distributor listing alone.

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ISL8485IP - 5Mbps RS-485/RS-422 Transceiver | Renesas
ISL8485IP

ISL8485IP - 5Mbps RS-485/RS-422 Transceiver | Renesas

The Renesas ISL8485IP is a 5V, low-power, half-duplex RS-485/RS-422 transceiver rated for data rates up to 5Mbps and supplied in an 8-pin DIP package. It provides one balanced transceiver interface for bidirectional multipoint data communication, places one unit load on an RS-485 bus, and operates from a supply range of 4.5V to 5.5V. The device is intended for industrial communication links requiring either high-speed operation or controlled slew rates. An RS-485/RS-422 transceiver is an interface IC that converts digital logic-level signals into differential signals for balanced wired communication and converts received differential signals back into logic levels. RS-422 supports point-to-point balanced links, while RS-485 permits multipoint buses and driver-enable control. The ISL8485IP belongs to the transceiver hierarchy within interface ICs and combines transmitter, receiver, bus-enable control, and protection functions in one package. Key features include a 5Mbps maximum data rate, 4.5V to 5.5V supply tolerance, one-unit-load bus loading, and support for both RS-485 and RS-422 signaling. The 8-pin DIP package is suitable for conventional through-hole assembly, prototyping, repair, and industrial control equipment. Its half-duplex arrangement allows the same differential pair to transmit and receive, although external direction-control logic is normally required. The BiCMOS architecture combines bipolar and CMOS characteristics to provide low-power operation with high data-rate capability. According to the Renesas ISL8485 family information, the ISL8485, ISL8490, and ISL8491 devices are 5V-powered single transceivers that meet RS-485 and RS-422 standards. The family supports supply voltages with 10% tolerance and presents one unit load to the RS-485 bus, helping control loading when multiple nodes share a communication line. Typical applications include industrial factory automation, programmable-logic-controller communication, building-control networks, instrumentation links, and embedded serial-interface equipment. In these systems, the transceiver serves as the physical-layer interface between a controller UART or logic port and a balanced RS-485 or RS-422 cable. Its 5Mbps capability supports high-speed equipment links, while slew-rate-controlled variants in the broader family can be useful where lower EMI is the priority. PCB design should preserve the differential signal path and provide controlled termination and biasing appropriate to the selected RS-485 or RS-422 topology. Keep the transceiver close to the connector, route the differential pair as a coupled pair, and place termination components where they can be configured for the intended network. The maximum 5.5V supply is especially important in industrial systems because transients and supply tolerances must remain within the device rating. This product page combines verified distributor identification, package and interface details, family-level electrical characteristics, alternative sourcing information, and application-specific engineering guidance. It also distinguishes explicitly verified facts from parameters that require confirmation from the manufacturer datasheet before schematic release or production qualification.

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ISL8487IB - 250 kbps RS-485/422 Transceiver | Renesas
ISL8487IB

ISL8487IB - 250 kbps RS-485/422 Transceiver | Renesas

The Renesas Electronics ISL8487IB is a 5 V, single-channel half-duplex RS-485/RS-422 interface transceiver with a 250 kbps data rate, 1/4 unit load, and an 8-pin SOIC package. It combines one driver and one receiver in a fractional-unit-load design intended for balanced industrial communication links where the number of connected nodes is important. An RS-485/RS-422 transceiver is an interface IC that converts logic-level signals into differential bus signals and converts received differential signals back into digital logic. Positioned within the hierarchy of transceiver, communication interface, interface IC, and semiconductor categories, the ISL8487IB supports RS-485 and RS-422 networks while presenting a lower bus loading than a one-unit-load device. The ISL8487IB operates from a 5 V supply and presents a 1/4 unit load, allowing up to 128 transceivers on a compliant RS-485 bus. Its maximum data rate is 250 kbps, and the listed receiver hysteresis is 70 mV. The 8-SOIC surface-mount package measures approximately 0.154 inches, or 3.90 mm, in width and supports conventional board-assembly and inspection processes. Because the device is a half-duplex transceiver, the receiver and driver share the bus path and direction is controlled by the DE and RE inputs. This architecture suits point-to-point links as well as multidrop buses in which multiple nodes may communicate under a token-passing or polled protocol. The fractional unit load reduces input impedance loading compared with a standard one-unit-load transceiver, improving scalability without requiring an alternative physical bus topology. Typical applications include industrial process monitoring, factory automation, remote meter reading, building controls, instrumentation, and general-purpose RS-485 or RS-422 links. The 250 kbps rate is suitable for supervisory communications and moderate-speed data transfer, while the 1/4 unit load is especially useful when several nodes must share the same twisted-pair bus. Because the transceiver is not galvanically isolated, applications with large ground-potential differences may require an external isolation strategy. Designers should verify termination, biasing, differential routing, and protection against the electrical environment of the cable. The differential pair should be routed as a controlled-impedance pair where practical, and the transceiver should be placed close to the connector to minimize unprotected trace exposure. Supply decoupling and grounding must follow the manufacturer datasheet recommendations. This page combines verified distributor specifications, lifecycle information, source-linked pricing, package details, application guidance, and defensible same-footprint alternatives. It also distinguishes confirmed data from parameters not present in the supplied source material, helping engineers evaluate the obsolete ISL8487IB without assuming unverified electrical characteristics.

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ISL8487IP - 5V Half-Duplex RS-485/RS-422 Transceiver | Renesas
ISL8487IP

ISL8487IP - 5V Half-Duplex RS-485/RS-422 Transceiver | Renesas

Renesas ISL8487IP is a 5 V, half-duplex RS-485/RS-422 interface transceiver with one transmitter and one receiver in an 8-pin PDIP package. It supports a 1/8-unit-load receiver characteristic, low-power operation, driver-enable and receiver-enable control, and a low-power shutdown function. These characteristics make it suitable for bidirectional serial-data links that require both RS-485 and RS-422-compatible signaling without a separate supply rail for the interface. An RS-485/RS-422 transceiver is a differential interface IC that converts logic-level data into balanced differential signals and converts incoming differential signals back into receiver-compatible logic. Within the broader hierarchy, it is a transceiver interface IC, a wired-communication interface, and part of the broader semiconductor and industrial-control ecosystem. Its half-duplex architecture allows a pair of devices to share the same differential pair, although only one transmitter should drive the bus at a time. The ISL8487IP provides a 1/8-unit-load receiver, allowing multiple nodes to share a bus more effectively than a one-unit-load receiver. Its 5 V supply, low-power shutdown, separate transmitter and receiver enables, and selectable high-speed or slew-rate-limited operation give the designer several ways to balance throughput, EMI control, and power consumption. The transmitter-enable and receiver-enable inputs also support orderly bus-direction control in half-duplex equipment. According to the manufacturer datasheet, the device uses fractional-unit-load BiCMOS transceiver technology intended for balanced RS-485 and RS-422 networks. The slew-rate-limit option reduces the rate of change on driver output edges, which can help control high-frequency ringing and electromagnetic emissions. Conversely, the high-speed mode is intended for links where maximum communication rate is more important than edge-rate control. Exact propagation-delay, data-rate, differential-output, and current-limit values were not present in the supplied web data. Typical uses include industrial equipment links, building-control interfaces, instrumentation buses, data-acquisition systems, and host-controller communication ports. In a half-duplex system, the transceiver can connect a controller to a multidrop field bus while logic-controlled enables determine whether the node transmits or receives. The low-power shutdown function is useful when a connected module must reduce current consumption while preserving a stable local bus connection. Designers should verify the exact recommended termination, biasing, common-mode range, and decoupling requirements in the manufacturer datasheet before release. Differential pairs should be routed with continuous references and matched spacing, while a slew-rate-limited mode may be preferable in cables or cabinets exposed to significant EMI. The 8-pin PDIP package also requires adequate spacing around the leads for soldering and inspection.

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ISL8488IB - 250kbps Full-Duplex RS-485/422 | Renesas
ISL8488IB

ISL8488IB - 250kbps Full-Duplex RS-485/422 | Renesas

Renesas Electronics ISL8488IB is a 5V, full-duplex RS-485 and RS-422 transceiver capable of operation at 250kbps in an 8-pin SOIC package. The integrated interface IC combines one transmitter and one receiver for bidirectional point-to-point or multipoint serial links, while its slew-rate-limited driver helps reduce electromagnetic interference and ringing on inadequately terminated lines. An RS-485 transceiver is a differential communications interface IC used to connect a controller, programmable logic controller, sensor, or industrial endpoint to a balanced serial bus. RS-485 is a physical-layer standard suited to noisy industrial environments and longer cable runs, while RS-422 provides compatible differential signaling for point-to-point links. The ISL8488IB occupies the interface-IC hierarchy alongside RS-232 transceivers, isolated transceivers, and CAN controllers, but it operates with differential RS-485/RS-422 signaling rather than single-ended RS-232. The verified device data identifies a 5V supply, a 250kbps maximum signaling rate, full-duplex operation, slew-rate-limited drive, low-power operation, and the absence of separate receiver-enable and transmitter-enable controls. These features make the device appropriate for industrial and commercial systems where a compact, always-enabled full-duplex interface is preferred. The 8-SOIC format also supports conventional surface-mount PCB assembly and broad availability through distributors. The full-duplex arrangement separates the differential driver and receiver paths, allowing simultaneous transmission and reception. The slew-rate-limited driver is particularly useful where long cables, branch stubs, imperfect terminations, or reflected signals could otherwise produce unwanted EMI or excessive edge ringing. The supplied search evidence does not provide a verified common-mode range, receiver sensitivity, fail-safe behavior, bus loading, or propagation-delay distribution, so those values should be confirmed from the complete manufacturer datasheet before release. Typical uses include industrial controller links, factory automation equipment, building-control systems, instrumentation, telecom equipment, and embedded serial links where RS-485 or RS-422 is already selected. Because the part has no separate RX/TX enable inputs, the attached controller must handle bus-direction control elsewhere or the transceiver must remain in its continuously enabled interface configuration. The 250kbps data rate also places the device below the throughput normally associated with modern high-speed CAN or differential Ethernet interfaces. For a new PCB, preserve the manufacturer-recommended bypass capacitance, connect the differential pair as a controlled impedance or tightly matched pair, and provide termination only where the cable topology requires it. Avoid placing long unprotected stubs on the bus. Designers should also verify ground potential differences between connected systems because RS-485 relies on the common-mode voltage remaining within the device's supported operating range. This product record combines verified distributor listings, the manufacturer-family datasheet, available cross-reference evidence, packaging details, interface-use guidance, and a conservative same-footprint replacement assessment. It also distinguishes confirmed specifications from unavailable parameters so procurement and engineering teams can identify which values still require confirmation from the full datasheet.

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ISL8488IP - 250kbps Full-Duplex RS-485/RS-422 | Renesas
ISL8488IP

ISL8488IP - 250kbps Full-Duplex RS-485/RS-422 | Renesas

The Renesas Electronics ISL8488IP is a 5 V, low-power, full-duplex RS-485/RS-422 transceiver operating at up to 250 kbps, supplied in an 8-pin plastic DIP package. The device is designed for bidirectional industrial data links and combines a transmitter, receiver, and bus-driver/receiver functions without separate receive or transmit enable pins. Its slew-rate-limited operation helps reduce unwanted high-frequency signal content on longer RS-485 networks. An RS-485/RS-422 transceiver is an interface IC that converts logic-level digital signals into differential bus voltages and converts received differential bus signals back into CMOS-compatible logic. In the broader electronics hierarchy, it is an interface IC within the transceiver family, designed for reliable point-to-point or multipoint communication over cables and industrial backplanes. The ISL8488IP supports both RS-485 and RS-422 system requirements while operating from a single 5 V supply. Key verified characteristics include a 250 kbps maximum signaling rate, full-duplex operation, 5 V supply operation, integrated RS-485/RS-422 transceiver functionality, and slew-rate-limited signaling. The absence of dedicated transmit and receive enable inputs is useful in applications where the interface direction is fixed or managed elsewhere. Its low-power design is intended for embedded industrial, communications, instrumentation, and control systems where reduced energy use and controlled edge rates are important. The device combines differential bus outputs with a receive path designed for data-link applications. Because the ISL8488IP is slew-rate limited, engineers should evaluate its 250 kbps rating against protocol timing, cable length, termination requirements, and the waveform behavior of the connected system. The 8-PDIP package favors through-hole construction, thermal management through the printed-circuit board, and applications that favor a conventional DIP footprint over a surface-mount package. Typical uses include industrial controller links, remote instrumentation, point-to-point communications equipment, factory data acquisition, and embedded systems exchanging commands between a controller and a remote peripheral. Full-duplex operation can simplify systems that continuously require independent transmit and receive paths. The lack of separate enable pins also reduces external control logic, although it may not suit designs that require direction switching or controlled bus tri-state behavior. For a new layout, place the transceiver near the connector and bus entry, route the differential pair as a tightly coupled pair, apply the appropriate termination and protection network, and maintain a continuous ground reference where required by the communication standard. Check the manufacturer datasheet for exact receiver thresholds, driver limits, supply-current values, temperature limits, and absolute maximum ratings before releasing production hardware. This page combines the verified 250 kbps, 5 V, full-duplex, RS-485/RS-422, slew-limited, 8-PDIP, and no-enable characteristics with practical integration guidance. It also distinguishes verified facts from unavailable datasheet details so procurement and engineering teams can identify what must be checked in the full manufacturer documentation.

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ISL8489IB - 250kbps RS-485/422 Transceiver | Renesas
ISL8489IB

ISL8489IB - 250kbps RS-485/422 Transceiver | Renesas

The Renesas Electronics ISL8489IB is a 5 V, low-power, full-duplex RS-485/RS-422 transceiver capable of operation at 250 kbps, packaged in a 14-pin SOIC. It combines one driver and one receiver in a single integrated circuit and provides both high-speed and slew-rate-limited operation. The device does not include separate receiver-enable or transmitter-enable controls, making it suitable for continuously enabled balanced communication links. An RS-485/RS-422 transceiver is an interface IC that converts logic-level signals into balanced differential transmissions and converts received differential signals back into logic levels. These balanced interfaces belong to the broader wired-communication hierarchy and are commonly used where noise immunity, signal integrity, and reliable communication over longer cables are more important than single-ended signaling. The verified product information identifies a 5 V supply, low power consumption, full-duplex operation, support for both RS-485 and RS-422, and data rates up to 250 kbps. Its 14-pin SOIC package supports conventional surface-mount PCB assembly. Because the device lacks separate RX and TX enable pins, it is particularly appropriate for designs that keep both directions of the balanced interface continuously active. The ISL8489 family is described by the manufacturer as a BiCMOS 5 V single-transceiver solution designed for RS-485 and RS-422 balanced communication. Its low-power architecture supports equipment in which multiple interface channels may be present. High-speed or slew-rate-limited operation gives designers a choice according to cable length, topology, and signal-integrity requirements, although exact edge-rate and propagation-delay limits must be confirmed in the manufacturer datasheet. Typical uses include industrial automation links, building-automation equipment, instrumentation, motor-control systems, and industrial data networks. The device can also support point-to-point balanced links where continuous full-duplex operation is preferred. Companion interface devices such as the SN65HVD06D, SP485ECN-L, and SN75174DWR may be relevant when designing connected RS-485 networks or comparing transceiver families. A key design consideration is the absence of independent transmit and receive enables. PCB designers should therefore account for continuous driver activity and verify the driver state, bus termination, protection strategy, and cable topology against the system operating requirements. Decoupling, grounding, and differential-routing practices remain essential for reliable operation on externally accessible industrial buses. This page consolidates verified distributor listings, exact interface and packaging information, sourcing data, comparison fields, and practical design guidance. Where detailed electrical limits or a verified pin mapping were not present in the supplied source data, the missing information is explicitly identified rather than estimated.

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