Interface ICs
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Products (3,400+)
NB4N527S - 2.5Gb/s Dual AnyLevel to LVDS Translator | onsemi
The onsemi NB4N527S is a 3.3V, 2.5Gb/s dual AnyLevel to LVDS receiver/driver/buffer/translator with a wide input common-mode range of GND + 50 mV to VCC - 50 mV, two integrated 50 ohm internal termination resistors, and typical 350 mV LVDS output levels, housed in a 3 mm x 3 mm QFN-16 package. A level translator is an interface IC that converts signals from one logic standard or voltage domain to another while preserving signal integrity at high speed. In the signal-chain hierarchy, the NB4N527S sits between high-speed data or clock sources and LVDS receiver inputs, functioning simultaneously as a receiver, driver, buffer, and translator within the broader clock-and-data-distribution family of timing ICs. Key features include a maximum input clock frequency of up to 1.25 GHz, a 2.5Gb/s maximum data rate, and a common-mode range that accepts differential or single-ended inputs without external components. The two internal 50 ohm terminations eliminate the need for external resistor networks, reducing board area and component count while improving impedance matching consistency. Architecturally, the AnyLevel input stage compares incoming signals against the full supply-rail common-mode window, then regenerates them as clean LVDS differential outputs. This regeneration action reduces jitter accumulated upstream, which is why onsemi targets the device at jitter-sensitive, size-constrained designs. The small QFN-16 footprint suits dense line cards and modules where every square millimeter counts. Typical applications include data-center and telecom line-card clock distribution, wireless infrastructure radio chains, and high-speed logic-level interface translation between CML, PECL-style, or single-ended sources and LVDS backplanes. Design-wise, keep the 50 ohm internal terminations in mind: external terminations must not be added on terminated inputs, and input routing should be impedance-controlled. Short, matched differential output traces preserve the low-jitter benefit. This page synthesizes distributor listings, drop-in alternative analysis, and practical design notes not found in the manufacturer datasheet.
NIM-ES2-4= - 4-Port Gigabit Ethernet NIM | Cisco
Cisco NIM-ES2-4= is a four-port Layer 2 Gigabit Ethernet LAN switch Network Interface Module for Cisco 4000 Series Integrated Services Routers. It adds four 10/100/1000 switched Gigabit Ethernet ports in a single-wide module and uses a 1-Gbps multigigabit-fabric connection for intermodule communication. The NIM-ES2-4= is intended to expand branch-router LAN connectivity where onboard router interfaces are insufficient. A Network Interface Module is a plug-in router expansion card that adds connectivity functions through a host router platform. Unlike a standalone switch, this module relies on a compatible Cisco ISR chassis and its IOS XE software. Its four Gigabit Ethernet ports operate as switched Layer 2 access ports, allowing IP phones, workstations, wireless access points, cameras, and other endpoint devices to connect through one module. The verified source data identifies line-rate Layer 2 switching across the four onboard Gigabit Ethernet ports. Each port supports 10, 100, or 1000 Mb/s operation. The module also provides a 1-Gbps connection to the router's Multigigabit Fabric, separating switched access traffic from the internal intermodule fabric. These figures distinguish the product from the eight-port NIM-ES2-8 and from legacy EHWIC Ethernet switch modules. Typical deployments include enterprise branch routers connecting employee access points, IP phones, desktop computers, printers, and surveillance equipment. A campus edge router can aggregate several access switches through the four copper ports, while a small retail site can extend wired LAN services without adding a separate fixed switch. Installation requires a compatible Cisco 4000 Series ISR and appropriate IOS XE licensing. Before procurement, verify router-slot availability, IOS XE support, Smart Licensing, software entitlement, and the required IOS XE feature or security image. Cisco announced end-of-sale for affected LAN switch NIMs after March 5, 2025, so verified stock and support milestones are essential when buying used or refurbished inventory. This page combines Cisco specifications, current pricing evidence, compatibility guidance, and design considerations to help engineers distinguish genuine router modules from merely similar four-port cards before deployment.
NTS0302JK - 2-Bit Dual Supply Level Transceiver | NXP
The NXP Semiconductors NTS0302JK is a 2-bit, dual-supply translating transceiver with open-drain outputs and auto direction sensing, enabling bidirectional voltage level translation between two independent power domains. It features two 1-bit input-output ports (A and B), one output enable input (OE), and two supply pins, and is supplied in an NXP small-footprint package (JK suffix) for space-constrained boards. A dual-supply translating transceiver is a class of voltage level shifter IC within the logic and interface IC hierarchy. Unlike direction-controlled transceivers, auto direction sensing devices monitor the bus and reverse transmission direction without a DIR control pin, which removes firmware overhead and eliminates bus contention caused by incorrect direction settings. Open-drain ports additionally allow pull-up resistors to set each side's logic high level independently, supporting mixed-voltage I2C-style, open-drain, or slowly switching signaling. Key features include fully bidirectional translation with no direction pin, open-drain A and B ports for flexible pull-up voltage selection, an OE input to place ports in the high-impedance state, and independent VCCA and VCCB supplies so either side can be powered down without latch-up risk. This architecture suits 1.2 V to 5 V rail combinations typical in mixed-voltage embedded systems. The auto direction sensing engine detects which side is driving and propagates the state to the opposite side with short propagation delay, making the part suitable for two-wire and multi-drop open-drain buses. Because the ports are open drain, rise time is set by the external pull-up resistor and bus capacitance, giving designers direct control of edge rates for EMI management. Typical applications include I2C and SMBus level shifting between 3.3 V microcontrollers and 5 V peripherals, GPIO translation in mixed-supply industrial and automotive body-electronics modules, and open-drain status or interrupt lines bridging power domains. Design consideration: size the pull-up resistors so the RC rise time meets bus timing; excessively strong pull-ups increase sink current through the NTS0302 open-drain stages. Tie OE to the appropriate level when translation must always be active. This page synthesizes distributor pricing context, alternative strategy, and practical design notes not found in the manufacturer datasheet.
NTS0308EPWJ - 8-Bit Auto-Direction Level Translator | NXP
The NXP Semiconductors NTS0308EPWJ is an 8-bit, dual-supply translating transceiver with open-drain outputs and auto direction sensing, providing bidirectional voltage level translation at data rates up to 20 Mbps in a 20-pin TSSOP (PW) package. VCC(A) supports 0.95 V to 3.6 V and VCC(B) supports 1.0 V to 3.6 V, enabling translation between any two logic levels in these ranges. A dual-supply level translator is a power management and interface device that bridges digital circuits operating at different voltage domains, for example a 1.8 V microcontroller communicating with a 3.3 V sensor. Within the signal-integrity hierarchy, the NTS0308E belongs to the level translator family, a subcategory of interface ICs (logic translators), which sit above simple buffers in complexity because they must manage two independent supply rails and direction control. Key differentiating features include auto direction sensing, which eliminates the need for a direction-control pin because each I/O automatically detects whether it should act as an input or output; open-drain outputs, which allow the device to work with I2C-style pull-up buses and mixed-voltage open-drain signalling; and a single output-enable (OE) input that tri-states all eight channels for power savings. The wide 0.95 V VCC(A) floor supports emerging sub-1.2 V logic cores. Architecturally, each of the eight A/B ports uses a one-bit input-output cell that senses the applied voltage level and drivers, sourcing current only during rising edges to limit dynamic supply current - a technique that also permits use with pull-up resistors on partially powered buses. The open-drain structure means external pull-up resistors set the high level at each side, giving designers full flexibility over bus levels. Typical applications include I2C and SMBus bus level shifting between 1.8 V, 2.5 V, and 3.3 V domains, interfacing low-voltage microcontrollers to 3.3 V peripherals, mixed-voltage open-drain bus translation in industrial and automotive body-electronics modules, and general-purpose 8-bit bidirectional level shifting in consumer and IoT hardware. Design-wise, note that because outputs are open drain, pull-up resistors are mandatory and effective data rate falls as pull-up resistance and bus capacitance rise; the 20 Mbps figure assumes light RC loading. Keep VCC(A) and VCC(B) decoupled with 0.1 uF ceramics close to the pins. This page adds value beyond the manufacturer datasheet by consolidating distributor pricing, drop-in alternative analysis, application-specific design notes, and AEO-optimized Q&A in one place.
NVT2002DP,118 - 2-Bit Bidirectional Level Translator 1.0-5V | NXP
The NXP Semiconductors NVT2002DP,118 is a 2-bit bidirectional voltage-level translator that operates from 1.0 V to 3.6 V on the A side and from 1.8 V to 5.5 V on the B side, allowing bidirectional voltage translation between 1.0 V and 5 V without a direction pin, in an 8-pin TSSOP (DP) package. A voltage level translator (also called a level shifter or voltage translator) is a mixed-signal interface IC that safely connects digital devices operating at different supply voltages, such as a 1.8 V microcontroller and a 5 V sensor. Level translators sit within the broader hierarchy of logic ICs and interface ICs in the signal chain, forming a bridge between voltage domains in power management and system I/O design. Without translation, direct connection risks over-voltage damage or failure to meet logic thresholds. Key features of the NVT2002 include direction-pin-free operation, which simplifies control firmware and eliminates bus contention logic; support for both open-drain and push-pull applications; identical electrical characteristics across both channels with minimal output-to-output deviation; and low effective line capacitance for signal speeds below 33 MHz in open-drain mode. The architecture uses reference voltages Vref(A) and Vref(B) with an enable (EN) input that, when LOW, places all I/O in the high-impedance state, significantly reducing supply current. Technically, the NVT2002 employs a pass-gate architecture: a one-shot edge accelerator briefly lowers the output impedance on rising edges to overcome the RC time constant of the pull-up resistors, while a bias network between Vref(B) and Vref(A) holds the bus near the A-side threshold. This hybrid approach combines the bidirectionality of open-drain schemes with the low capacitance and speed of transistor-switch designs, avoiding the propagation-delay penalty of dual-supply CMOS translators. Typical applications include I2C, SMBus, and PMBus level shifting between 3.3 V controllers and 5 V peripherals, GPIO and UART interface translation in mixed-voltage embedded systems, and low-speed bus bridging in industrial and automotive body-electronics modules where microcontrollers such as NXP and ST MCUs interface to 5 V sensors and actuators. One key design consideration: because the translator is open-drain at its core, push-pull operation requires proper pull-up resistor sizing - lower values improve edge rates but increase static current through the internal bias network, so engineers must trade speed against power consumption. This page synthesizes distributor pricing, drop-in alternatives, practical design notes, and an application-by-application selection guide not found in the manufacturer datasheet, verified as of 2026-10-19.
NVT4557HKX - SIM Card Level Translator, ESD | NXP
The NXP Semiconductors NVT4557HKX is a SIM card interface level translator with integrated EMI filtering and ESD protection, housed in a 10-pin XQFN package. It translates data, RSTn, and CLKn signals between a low-voltage host interface of 1.08 V to 1.98 V and a SIM card side operating from 1.62 V to 3.6 V, with 15 ns propagation delay and 10 MHz signaling support. A level translator (also called a voltage level shifter or voltage translator) is an interface IC that allows digital circuits operating at different supply voltages to communicate reliably. In the power-management and interface hierarchy, the NVT4557 sits between a host microcontroller and a smart card, bridging the voltage gap created by modern low-voltage SoCs that no longer generate the higher SIM card supply rails internally. The device complies with ISO-7816 SIM/smart card interface requirements. Key features include three dedicated 1.62 V to 3.6 V level translators for data, reset (RSTn), and clock (CLKn) lines, integrated EMI filtering that suppresses radiated and conducted emissions on the SIM lines, and built-in ESD protection that removes the need for external transient-voltage-suppression diodes on the card interface. Because the device provides supply translation without an internal LDO, it simplifies the bill of materials in designs where the card supply is already generated elsewhere. Technically, the part supports an operating temperature range of -40 C to +85 C, making it suitable for both consumer and industrial embedded designs. The XQFN10 package keeps the footprint minimal for space-constrained mobile, IoT, and M2M hardware. Fast 15 ns transitions support the 10 MHz SIM clocking modes required by modern LTE and 5G modules. Typical applications include SIM card interfaces in cellular modems, LTE/5G gateways, point-of-sale terminals, telematics units, and IoT devices using eSIM or removable SIM form factors. When designing with the NVT4557HKX, keep the host supply within the 1.08 V to 1.98 V window and ensure the card-side supply stays within 1.62 V to 3.6 V; place the device close to the SIM connector to maximize the benefit of the integrated EMI filter. This page synthesizes distributor pricing, lifecycle status, design notes, and selection guidance not found in the manufacturer datasheet alone.
NVT4558HKX - SIM Card Level Translator 10-XQFN | NXP
The NXP Semiconductors NVT4558HKX is a SIM card interface level translator with integrated EMI filter and ESD protection, housed in a 10-pin XQFN (1.4 mm x 1.8 mm) package. It interfaces host processors operating from 1.2 V to 1.8 V with SIM cards operating from 1.8 V to 3.6 V, supporting bidirectional data transfer at up to 10 MHz. A level translator (also called a voltage level shifter or logic translator) is a type of interface IC within the broader logic IC family that converts digital signals between circuits operating at different supply voltages. In modern mobile and IoT systems, low-voltage baseband processors (1.2 V to 1.8 V) must communicate with SIM/UICC cards that may run at 1.8 V or 3 V class voltages (up to 3.6 V). Without translation, direct connection risks overvoltage damage or unreliable logic thresholds. The NVT4558HK family solves this in a single, protection-integrated device. Key differentiating features include integrated ESD protection on all card-side pins rated to 8 kV contact discharge per IEC 61000-4-2, integrated EMI filtering that suppresses higher harmonics of the digital I/O signals (important for passing regulatory EMC testing in cellular devices), and a bidirectional translation architecture with a 10 MHz data rate that comfortably covers the ISO 7816-compatible clock rates used by 3GPP SIM interfaces. Architecturally, the device combines automatic direction-sensing translation channels for the SIM data line with supply-domain isolation between the host side (1.2 V to 1.8 V) and card side (1.8 V to 3.6 V). The integration of the EMI filter and ESD structures into the same die eliminates discrete TVS diodes and filter components, reducing BOM count and PCB area in space-constrained designs such as smartphones, cellular modules, and M2M terminals. Typical applications include SIM card interfaces in 4G/5G cellular modems, eUICC/SIM sockets in IoT trackers, telematics control units, and payment terminals, all of which require reliable low-voltage to card-voltage translation with robust ESD immunity at the externally accessible card contacts. Design consideration: keep the card-side traces short and place the device close to the SIM connector so the integrated EMI filter and ESD structures provide maximum benefit; verify that the host-side supply stays within the 1.2 V to 1.8 V range for correct logic thresholds. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
NVT4858UKZ - SD 3.0 Level Translator 104Mbps | NXP
The NXP NVT4858UKZ is an SD 3.0-compliant bidirectional dual-voltage level translator with auto-direction control, providing 6 translation channels at up to 104 Mbps in a 16-ball WLCSP package measuring 1.84 x 1.87 mm. It integrates an EMI filter and ESD protection without an on-chip LDO, and interfaces a memory or SIM card operating at 1.65 V to 3.6 V signal levels with a host controller running from 1.08 V to 1.95 V. A voltage level translator (also called a level shifter) is an integrated circuit that converts digital signals between two different voltage domains, allowing a low-voltage host controller to communicate safely with peripheral devices that operate at higher signal levels. In the power management and signal-chain hierarchy, level translators sit between the SoC or application processor and external interfaces such as memory card sockets, protecting both sides from over-voltage damage while preserving signal integrity. Key features of the NVT4858UKZ include full SD 3.0 SDR104 support at 104 Mbps, plus SDR50, DDR50, SDR25 and SDR12 modes, as well as SD 2.0 High-Speed (50 MHz) and Default-Speed (25 MHz) operation. Auto-direction control eliminates the need for a separate DIR pin, simplifying firmware and board design. An auto-enable/disable function tied to the VCCB supply pin reduces system power by placing the translator in a low-power state when the card supply is absent. The integrated EMI filter suppresses radiated and conducted emissions on the card interface, while the on-chip ESD protection meets IEC 61000-4-2 level 4, giving robust immunity against electrostatic discharge at the externally accessible card socket. The 16-WLCSP (1.84 x 1.87 mm) package minimizes board area, which is critical in smartphones, tablets and other space-constrained portable products. Note that this version ships without an integrated LDO, so card supply generation must be provided separately on the board. Typical applications include SD, SDIO, miniSD, microSD and SIM card interfaces in mobile phones, tablets, automotive infotainment head units, and industrial data loggers. It also supports SIM card voltage translation using the CLK line and two data lines in SD-plus-SIM combo socket designs. When designing with the NVT4858UKZ, keep the WLCSP ball-out routing short and impedance-controlled on the high-speed CLK/CMD/DATA lines to preserve SDR104 timing margins at 104 Mbps, and verify that the host-side supply stays within the 1.08 V to 1.95 V range under all load conditions. This page synthesizes distributor pricing, lifecycle information, and practical design guidance not found in the manufacturer datasheet, as of 2026-10-19.
OPA875ID - 700 MHz 2:1 Video Multiplexer | Texas Instruments
The Texas Instruments OPA875ID is a single-channel, 700 MHz video multiplexer with an integrated +2 gain amplifier, supplied in an 8-pin SOIC package. It combines two high-speed video inputs with one output, consumes only 11 mA, and provides greater than 425 MHz large-signal bandwidth with a 4 VPP signal. The OPA875ID is therefore suited to wideband video routing where compactness, low power consumption, and short signal paths are important. A high-speed video multiplexer is a signal-routing device that selects one of multiple analog inputs and presents that selected signal at a common output. The OPA875ID belongs to the broader video-switch IC and high-speed analog multiplexer categories. Unlike a general-purpose analog switch that merely connects a source to a load, it integrates a +2 video-amplifier channel and optimized input switching, allowing it to drive downstream video equipment while preserving wideband signal integrity. Principal features include a 700 MHz device bandwidth, greater than 425 MHz large-signal bandwidth at 4 VPP, +2 gain, and a single-channel 2:1 configuration. Its 11 mA supply-current consumption reduces the power burden in distributed video systems. The manufacturer's product information also indicates improved gain accuracy and switching glitch compared with earlier multiplexer solutions, using a new input-stage switching approach. The OPA875ID is available in SO-8 and small MSOP-8 package options, with OPA875ID identifying the SO-8 ordering variant. The manufacturer describes the OPA875 as a very wideband multiplexer suitable for high-speed video systems. Its architecture is intended to minimize the number of external signal-conditioning stages required in moderate-bandwidth routing applications while maintaining a compact footprint. Typical uses include professional video routing, broadcast and monitoring equipment, test and measurement systems, and other applications that route baseband or composite-style high-speed video signals. The integrated +2 gain can reduce the need for a separate gain stage, while the two-input multiplexer consolidates source selection into a single device. Systems requiring three multiplexed channels should evaluate the manufacturer's OPA3875 family instead. The primary design consideration is signal integrity: routing boards must use controlled-impedance traces, short connections, solid ground references, and careful termination around the high-speed amplifier inputs and output. Supply decoupling should follow the manufacturer's recommended layout, and unused or configuration pins must be connected exactly as specified in the datasheet. This page consolidates manufacturer specifications, distributor availability references, package details, application guidance, and design considerations. It also distinguishes verified OPA875 ordering variants from packaging-only options, helping engineers avoid treating reel codes or different-package versions as true pin-compatible drop-in replacements.
P3A1604UKAZ - 4-Bit Dual-Supply Level Translator 40Mbps | NXP
The NXP P3A1604UKAZ is a 4-bit, dual-supply translating transceiver with auto direction sensing, delivering bidirectional voltage level translation at up to 40 Mbps in a 12-pin WLCSP package measuring just 1.06 x 1.41 mm. It operates from VCCA 0.72 V to 1.98 V on the low-voltage side and VCCB 1.62 V to 3.63 V on the high-voltage side, supporting I3C, I2C, SMBus, and SPI interfaces. A voltage level translator (also called a level shifter or translating transceiver) is an interface IC that lets digital devices running at different supply rails communicate safely. In the system hierarchy, it sits in the signal-interface layer between an SoC or MCU and its peripherals, bridging advanced low-voltage process nodes to legacy 1.8 V, 2.5 V, or 3.3 V logic without damaging either side. Key differentiating features include auto direction sensing, which eliminates the DIR control pin required by conventional transceivers - a major benefit for shared bidirectional buses such as I2C and I3C where direction changes dynamically. The wide 0.72 V VCCA floor supports cutting-edge 0.8 V and 1.0 V core-domain SoCs. Four independent channels with up to 40 Mbps throughput cover both slow open-drain buses and fast push-pull SPI lines in one package. Architecturally, the P3A1604UK uses a dual-supply translating transceiver topology in which each channel senses the driving side automatically and reproduces the logic level on the opposite rail. This makes it suitable for mixed-voltage point-to-point and multidrop links between modern ASICs fabricated on advanced nodes and peripheral ICs still powered from higher rails. Typical applications include I3C sensor buses in smartphones and wearables, I2C/SMBus management links in servers, SPI connections between low-voltage MCUs and 3.3 V flash or displays, and portable battery-powered systems where the tiny WLCSP footprint and low power consumption matter. Design consideration: because the WLCSP ball pitch is extremely fine, PCB land pattern accuracy and solder-mask design must follow the manufacturer datasheet recommendations precisely; verify VCCA never exceeds VCCB-side sequencing constraints during power-up. This page synthesizes distributor pricing, lifecycle data, and application guidance not consolidated in the manufacturer datasheet.
P82B715D - 2-Bit 400kHz I2C Bus Extender | Texas Instruments
The Texas Instruments P82B715D is a 2-bit bidirectional I2C/SMBus buffer and cable extender designed for 3 V to 12 V operation and 400 kHz bus communication. It increases practical wiring capacitance from 400 pF to 3 nF and is packaged in an 8-pin SOIC (D). The device uses unidirectional analog current amplification to improve the current sink capability of I2C devices while preserving bidirectional data transfer. What is an I2C bus extender? An I2C bus extender, also called an I2C buffer or bus repeater, is an interface IC placed between two bus segments to increase usable bus length and capacitance. It helps a controller and peripheral communicate across wiring where one physical I2C segment alone would be too heavily loaded. The P82B715 belongs to the interface IC hierarchy and separates a main I2C bus from an extended transmission-line segment. Key features include a 3 V to 12 V operating supply range, 400 kHz signal support, two bidirectional signal channels, and support for higher bus capacitance than the conventional 400 pF I2C limit. According to the Texas Instruments product page and datasheet, the device is intended for I2C and derivative SMBus systems. It is particularly useful when long cables, connectorized wiring, or multiple branches raise total bus capacitance. The P82B715 uses a split-side arrangement: each buffered path supports a main-bus side and an extended-cable side. This arrangement helps isolate the extended wiring from the main bus and allows the system to tolerate substantially more wiring capacitance. Engineers must still follow the datasheet limits for voltage, current, timing, and cable loading; the part is not a general-purpose differential-line driver. Typical applications include industrial control modules, sensor networks, test equipment, remote I2C targets, embedded systems, and SMBus-compatible equipment. Its 400 kHz class makes it appropriate for moderate-speed control buses rather than high-speed I2C designs beyond the stated operating range. Design attention should focus on bus capacitance, pull-up placement, ground continuity, and the separation between main and extended bus sections. Verify signal rise time and timing margin with the actual cable and peripheral loading rather than relying on nominal bus length alone. This page combines manufacturer specifications, distributor identification, and practical bus-integration guidance to help engineers evaluate the P82B715D for longer or more capacitive I2C wiring.
P82B715DG4 - 2-Bit I2C Bus Extender | Texas Instruments
The Texas Instruments P82B715DG4 is a 2-bit bidirectional I2C/SMBus buffer and cable extender operating from 3 V to 12 V at up to 400 kHz, packaged in an 8-pin SOIC. It strengthens and reshapes bus signals while supporting bidirectional data transfer between the main bus and a transmission bus. An I2C bus extender is an interface IC placed within an I2C system when cable length or bus capacitance prevents reliable communication. It belongs to the hierarchy of bus buffers and redrivers within interface ICs, allowing a controller and remote devices to communicate over a longer bus while preserving two-wire, open-drain signaling. The P82B715 uses analog current amplification to increase the current-sink capability of the I2C devices. Key features include a 250 ns delay time, 22 mA supply current, and an 8-SOIC package. The device supports a 12 V operating supply and is intended for 400-kHz I2C bus systems. Its bidirectional architecture allows the SDA and SCL paths to carry data in either direction without changing the logical behavior of the connected I2C system. Technically, the P82B715 is a bipolar device intended for I2C applications. Unidirectional analog current amplification on each internal path increases the current available to sink bus capacitance. This helps overcome the conventional 400-pF main-bus limitation while the extender supplies a larger allowable wiring capacitance on the transmission side. The result is improved signal rise time and more reliable communication across extended wiring. Typical applications include industrial control panels, building-automation equipment, sensor networks, programmable logic controller interfaces, and long cable runs between an I2C controller and remote peripherals. It is especially useful when the existing bus must be extended without redesigning the host controller or remote I2C devices. The primary design consideration is bus topology: connect the main bus, transmission bus, pull-up networks, and ground return exactly as shown in the manufacturer application guidance. Avoid introducing unnecessary stubs, and account for cable capacitance and rise-time margin at the selected 400-kHz operating rate. This page consolidates verified manufacturer and distributor facts, drop-in replacement evidence, and practical interface-design guidance into one engineering-oriented reference. It also distinguishes verified values from parameters that still require confirmation from the complete manufacturer datasheet.
P82B715DR - 2-Bit I2C Bus Extender | Texas Instruments
The Texas Instruments P82B715DR is a 2-bit bidirectional I2C/SMBus buffer and cable extender operating from 3 V to 12 V at up to 400 kHz, packaged in an 8-pin SOIC. It increases the sink-current capability of I2C drivers so the practical wiring-capacitance limit can extend from the conventional 400 pF to 3 nF. The P82B715DR is intended for systems where cable loading, long interconnects, or multiple bus nodes prevent reliable communication without buffering. An I2C bus extender is a specialized interface IC that preserves bidirectional open-drain bus signaling while placing controlled current amplification between a main bus and a remote segment. The P82B715 provides two buffered channels for SDA and SCL, allowing a controller or peripheral bank to communicate over a longer cable or higher-capacitance wiring. In the system hierarchy, it is an I2C/SMBus interface buffer within interface ICs and semiconductor signal-conditioning products. Key features include a 3 V to 12 V operating supply range, 400 kHz operation, bidirectional data transfer, support for 3 nF bus capacitance, and compatibility with TTL-level drivers. The verified product description identifies the P82B715 family as a bipolar IC using unidirectional analog current amplification. Its main engineering benefit is stronger bus-current drive, although the extender does not provide galvanic isolation and does not eliminate the need to control cable and connector parasitics. The P82B715DR is suitable for industrial control, long inter-card wiring, instrumentation, and systems where SDA or SCL must reach a remote connector. The buffered architecture helps maintain logic levels under capacitive loading, but designers should still minimize stub branches, use appropriate pull-up placement, and verify rise-time requirements at the lowest intended bus rate. The 8-SOIC package also supports conventional surface-mount assembly and easy comparison with the non-reel P82B715D ordering option. A key design consideration is that both sides of the device are connected to open-drain buses and require pull-up resistors selected for the actual bus voltage, load, and target rise time. Do not treat the extender as a level shifter when the two bus sections operate at different voltage domains; verify pull-up values and device limits from the manufacturer datasheet before mixing supply domains. This page combines verified manufacturer and distributor information with application guidance, commercial search answers, and honest replacement analysis. Pricing and availability are presented as of 2026-10-23 where the supplied data provides a price or inventory indication.
P82B715P - 2-Bit 3-12V I2C Bus Extender | Texas Instruments
The Texas Instruments P82B715P is a 2-bit bidirectional I2C and SMBus buffer and cable extender designed for 3 V to 12 V operation and up to 400 kHz bus signaling. It extends the practical wiring capacitance from the conventional 400 pF I2C limit to 3000 pF on the buffered bus while retaining bidirectional data transfer. The device is supplied in an 8-pin DIP package. An I2C bus extender is an interface IC that regenerates or buffers SDA and SCL signals so a heavily loaded bus can operate beyond its original capacitance limit. In the signal-device hierarchy, the P82B715P belongs to the bus-buffer, signal-buffer, interface-IC, and semiconductor categories. It is intended for systems in which cable length, connector loading, or distributed capacitance prevents the controller and peripherals from communicating reliably on a direct I2C bus. The P82B715 uses analog current amplification to increase the current-sink capability of the connected I2C devices. Its buffered Lx and Ly interfaces are designed to sink the larger currents needed by a 3000 pF capacitive bus, while the Sx and Sy side connects to the source-side bus. The architecture supports bidirectional communication, and the datasheet lists a propagation delay of 250 ns. The verified specification data also identifies 22 mA supply current, 4.5 V to 12 V operating supply in one source, and 3000 pF input bus capacitance. Typical uses include long sensor cables, industrial control modules, remote I2C peripherals, test fixtures, and systems that divide a capacitive I2C bus into a buffered high-capacitance segment and a controller-side segment. The P82B715P should be selected only when the complete system still meets the controller's timing, voltage, and logic-level requirements. Because the bus is bidirectional, pull-up placement and signal rise-time behavior remain essential design considerations. For PCB implementation, keep the device connections short and place pull-up resistors on the appropriate bus sections according to the datasheet application guidance. Do not assume that an extender guarantees unlimited cable length: wire resistance, connector capacitance, pull-up strength, bus speed, and the peripheral's sink-current capability can still limit operation. The manufacturer product page and P82B715 datasheet are the primary references for electrical limits and pin behavior. This product page combines the verified manufacturer and distributor data with application guidance and explicitly identifies missing engineering data instead of estimating it. Use it to compare bus capacitance, voltage, speed, package, and sourcing requirements before committing to a design.
P82B715PN - 2-Bit I2C Bus Extender | NXP
The NXP Semiconductors P82B715PN is a 2-bit bidirectional I2C bus extender that buffers both SDA and SCL lines to extend the practical separation distance between devices on an I2C bus. It operates from 3 V to 12 V, supports operation up to 400 kHz, and is supplied in an 8-pin PDIP package designated SOT97-1. The device is intended for I2C-bus and derivative bus systems where cable length, bus capacitance, or signal integrity makes a direct bus connection impractical. An I2C bus extender is a bidirectional interface IC that regenerates or buffers clock and data signals rather than acting as a one-way logic buffer. The P82B715PN buffers both halves of a two-wire bus, allowing a master and one or more slaves to communicate across a greater physical distance than would normally be practical for an unbuffered I2C connection. Its 400 kHz operating capability preserves compatibility with conventional standard-speed I2C systems while supporting buffered-bus implementations. The P82B715PN is implemented as a bipolar integrated circuit and retains the operating modes and features associated with the I2C bus while adding buffered SDA and SCL paths. The operating-voltage range of 3 V to 12 V permits use in systems powered from common low-voltage rails. As a bidirectional extender, it can support applications in which either side of the buffered segment must participate in the bus transaction. The key engineering benefit is increased separation between communicating components, with the supplied documentation describing extension to approximately 50 m to 100 m depending on bus implementation. That distance should not be treated as a universal guarantee because cable capacitance, pull-up resistance, bus speed, topology, and termination remain important variables. The 400 kHz limit also means slower I2C rates can provide greater margin in long or capacitively loaded installations. Typical uses include long industrial sensor buses, distributed I2C peripheral connections, remote instrumentation, and retrofit systems where existing cabling must be reused. The device is also useful in derivative bus systems that require a buffered clock and data pair. Because it buffers rather than translates voltage levels, both connected bus segments must use compatible logic levels and the device must remain within its 3 V to 12 V supply range. When designing around the P82B715PN, verify pull-up placement, total bus capacitance, and signal rise time before committing to a long cable. The 400 kHz maximum bus rate leaves less timing margin than lower-rate operation, particularly when cable capacitance is high. A shorter cable, lower I2C clock rate, or properly selected pull-up network may be required when the installation approaches the upper end of the documented distance range. This page consolidates the verified NXP, Texas Instruments, distributor, and technical-index information for the P82B715PN, distinguishes confirmed characteristics from unavailable parameters, and provides a conservative drop-in assessment rather than presenting functionally similar interface ICs as unqualified replacements.
P82B715TD - 2-Bit 400 kHz I2C Bus Extender | NXP
NXP Semiconductors P82B715TD is a 2-bit bidirectional I2C-bus and SMBus extender operating from 3 V to 12 V at up to 400 kHz, supplied in an 8-lead SOIC package. The device buffers both clock and data lines to extend the practical separation distance between components on an I2C bus without requiring another bus controller. Its differential bus arrangement preserves bidirectional communication while reducing the loading presented by remote devices on the buffered side. An I2C-bus extender is a specialized interface IC within the broader bus-buffer and signal-repeater hierarchy. It sits between a host controller and a remote I2C segment, isolates the two sides electrically, and allows slow or heavily loaded bus sections to operate more reliably. Unlike a general-purpose unidirectional logic buffer, the P82B715 supports bidirectional clock and data signaling, making it suitable for I2C and derivative bus systems where both sides may initiate or acknowledge a transfer. The principal operating specifications are a 3 V to 12 V supply range, a 400 kHz maximum bus frequency, bidirectional operation on both buffered channels, and an 8-lead plastic small-outline package. The NXP product page identifies the package as SO8 with 8 leads on a 1.27 mm pitch and a body measuring 4.9 mm by 3.9 mm by 1.75 mm. These package dimensions allow the extender to be placed close to a bus segment while preserving a conventional SOIC-8 land pattern. The P82B715 is a bipolar integrated circuit, and its buffer arrangement uses internal series resistance to isolate the two bus sides. The resulting offset between a buffered input and its corresponding bus output depends on current flow, which makes system-level timing, pull-up selection, and wiring length important design variables. The enable pins allow the buffered sections to be disconnected when the device is not required, supporting controlled power management in multi-segment systems. Typical applications include extending I2C sensors, extending SMBus devices on industrial or telecommunications equipment, isolating cable capacitance from a controller, and supporting low-speed bus runs where additional loading would otherwise degrade rise time. The extender is also useful where a peripheral group must be placed behind connectors, test points, or long wiring while the main controller continues to operate from a separate bus segment. Designers should verify pull-up placement, enable polarity, maximum cable capacitance, operating frequency, and logic-level compatibility against the manufacturer datasheet before release. Because the P82B715 buffers rather than regenerates the bus waveform into an unrelated signal path, trace geometry, connector stubs, and the location of pull-up resistors can materially affect signal integrity. The buffered side should be treated as a distinct I2C segment with its own appropriate pull-up network. This product page consolidates the verified NXP and distributor data, separates manufacturer specifications from unavailable pricing fields, identifies genuine same-family drop-in alternatives, and adds application guidance and engineering checks that are not consolidated in a distributor catalog entry.
P82B96D - 400kHz Bidirectional I2C Buffer | Texas Instruments
The Texas Instruments P82B96D is a 2-bit dual bidirectional bus buffer and cable extender for I2C-compatible systems, supporting operation from 2V to 15V and data rates up to 400kHz in an 8-pin SOIC package. The device isolates or extends two-wire buses while permitting communication between systems operating at different logic voltage levels. Its two bidirectional channels support bus-segmentation, voltage-level translation, and cable-extension applications where signal integrity and fault containment are important. A bidirectional bus buffer is an interface IC that regenerates and electrically separates a two-wire bus while preserving data flow in either direction. In the signal-conditioning hierarchy, it belongs to the bus-buffer and repeater family within interface ICs. Unlike a one-way level translator, a bidirectional buffer automatically detects the direction of bus traffic and allows either endpoint to become the bus master, making it suitable for I2C and SMBus-compatible links. The P82B96D operates across a 2V-to-15V supply range and supports bus logic levels from 2V to 15V. According to the Texas Instruments product page and datasheet, it provides two bidirectional I/O paths, a maximum data rate of 400kHz, and compatibility with I2C buses operating at different voltage levels. The SOIC-8 package supports conventional surface-mount assembly while providing separate access to both bus sides. Its non-latching bidirectional interface avoids a direction-control pin and uses differentiated logic-low behavior to prevent latching. The device can bridge normal I2C logic signals to another bus configuration, including a second P82B96, while its electrical isolation helps limit fault propagation between connected systems. The manufacturer documentation also warns that two Sx or Sy nodes on the same side must not be connected together. Typical applications include I2C bus extenders, level translation between 2V and 15V domains, SMBus-compatible isolation, cable segmentation, industrial control modules, embedded sensor networks, and test systems requiring a robust 400kHz bus repeater. The device is particularly useful where long interconnects, mixed logic voltages, or removable cable sections could otherwise degrade communication reliability. When integrating the P82B96D, preserve the I2C pull-up arrangement on each bus segment and keep the buffer close to the bus being extended. Confirm the complete system voltage range, rise-time budget, capacitance, and fault-current behavior against the manufacturer datasheet. The 400kHz rating should not be treated as a guarantee for every cable length or load combination. This page consolidates manufacturer specifications, distributor availability, verified drop-in alternatives, and practical selection guidance. It highlights the P82B96D’s voltage-range and bidirectional-buffer advantages while clearly identifying details that require confirmation before PCB release.
P82B96DG4 - 2-15V 400kHz I2C Bus Buffer | Texas Instruments
The Texas Instruments P82B96DG4 is a 2-bit bidirectional I2C/SMBus buffer and cable extender operating from 2 V to 15 V at 400 kHz in an 8-pin SOIC package. It allows two I2C buses operating at different logic levels to communicate through a passive, bidirectional interface, helping isolate bus capacitance and improve system partitioning. The device supports bidirectional data transfer and is identified by DigiKey as a two-channel, 400 kHz signal redriver in an 8-SOIC package. What is an I2C bus buffer? An I2C buffer is an interface IC that helps extend, isolate, or level-translate a two-wire serial bus. The P82B96 belongs to the broader bus-buffer and interface-IC hierarchy and is used when cable length, bus capacitance, or different logic domains make a direct connection unreliable. Its 400 kHz operating point targets standard-speed I2C systems rather than higher-speed I2C designs. Key features include a 2 V to 15 V operating power-supply range, bidirectional transfer on two bus bits, and compatibility with I2C and SMBus signaling. The manufacturer product page specifically describes the P82B96 as a 2-bit, bidirectional, 2 V to 15 V, 400 kHz I2C/SMBus buffer/cable extender. The 8-SOIC package is a conventional surface-mount package that supports standard PCB assembly and rework processes. Heisener lists 5,568 pieces in stock, but its lead time and price require a quotation. The device is useful when a controller and peripheral bus must be separated by cable distance, connectors, or different voltage domains. It is also appropriate for industrial modules, test equipment, and embedded systems where bus loading and level compatibility are important. The manufacturer documentation also references additional low-period timing of 1,060 ns and a 425 ns I2C bus rise-time allowance, which are relevant when validating system timing. For a robust design, confirm the actual bus voltage levels, capacitance, pull-up resistors, and required rise time against the manufacturer datasheet. Do not treat the quoted stock count as a guaranteed XAIPART inventory position, and obtain a current quote before purchasing. This page combines manufacturer information, distributor listings, and verified comparison data while distinguishing unavailable pricing and lifecycle details.
P82B96DGKR - 2-15V 400kHz I2C Buffer | Texas Instruments
Texas Instruments P82B96DGKR is a 2-bit bidirectional I2C/SMBus buffer and cable extender with a 2 V to 15 V operating supply range, 400 kHz bus speed, and an 8-pin VSSOP (DGK) package. The device provides two bidirectional bus channels and supports interfaces between I2C buses operating at different logic levels. According to the Texas Instruments product page, P82B96DGKR supports operation from -40 °C to 85 °C and is intended for systems requiring buffered bus communication over longer cables or PCB traces. An I2C buffer is an interface IC that regenerates or isolates bus signals while preserving bidirectional open-drain communication. Within the product hierarchy, the P82B96 belongs to the buffer, repeater, and signal-conditioning class of interface ICs used in embedded, industrial, and consumer electronics. Its role is not simply signal amplification: the device establishes a controlled bidirectional interface between a host-side I2C bus and a second bus segment with potentially different voltage and current characteristics. The principal features include two independently buffered bidirectional channels, a broad 2 V to 15 V operating supply range, and operation up to 400 kHz. The wide supply range supports compatibility with 2.5 V, 3.3 V, 5 V, 9 V, and 12 V bus environments identified in the available component data. Its 8-pin VSSOP package provides a compact physical implementation for boards where routing area and component count are important. The absence of a direction-control input also simplifies use with open-drain I2C and SMBus signaling. The P82B96 uses slightly different logic-low thresholds on its two sides to avoid latching when the bidirectional signal paths are active. Texas Instruments explicitly states that two or more Sx or Sy I/O pins must not be connected together on the same node. This architecture allows the buffer to support bidirectional transfers automatically, but it requires correct bus topology and suitable pull-up placement to prevent contention or unintended current paths. Typical uses include isolating one I2C segment from another, extending an I2C bus across a larger board, connecting control boards with different logic voltages, and isolating cable-connected sensors or EEPROMs. The buffer is especially useful where long traces, connectors, cable capacitance, or multiple bus nodes could weaken the original bus signal. Designers must still validate rise time, pull-up resistance, capacitance, and the maximum number of supported devices. When designing around the P82B96, place the device close enough to the remote bus segment to limit the unbuffered section, while keeping the host-side bus short and well controlled. Verify pull-up placement, confirm that both sides operate within their specified logic-voltage limits, and avoid connecting multiple Sx or Sy pins to one node. The available manufacturer and distributor information does not provide a complete timing diagram or detailed electrical limits in the supplied excerpts. This product page consolidates verified manufacturer specifications, distributor pricing, ordering information, and package details into an engineering-focused reference. It also identifies the limited set of same-footprint alternatives that could be verified from the available cross-reference data, avoiding unsupported cross-package substitutions that would require PCB changes.
P82B96DGKRG4 - 2-15V I2C Bus Buffer | Texas Instruments
The Texas Instruments P82B96DGKRG4 is a dual bidirectional I2C and SMBus bus buffer and cable extender with a 2 V to 15 V operating-supply range and a 400 kHz operating frequency. The device is supplied in an 8-pin VSSOP package and is intended for bidirectional level translation between I2C buses operating at different logic voltages. According to the manufacturer product page, the P82B96 is a 2-bit, non-latching bidirectional bus interface. An I2C bus buffer is an interface IC that buffers two bidirectional clock-and-data lines while allowing the buses on either side to use different voltage domains. In the signal-chain hierarchy, the P82B96 is an I2C bus buffer, then a bidirectional bus repeater, then a bus extender, and finally a general-purpose interface IC. This position matters because I2C pull-up networks and bus capacitance can limit reliable communication over longer cables or between physically separated circuit boards. Key features include support for buses operating at different logic levels, bidirectional transfer of I2C signals, and compatibility with I2C and SMBus systems. The verified 400 kHz frequency identifies the device as a standard-speed rather than high-speed or fast-mode-plus bus extender. Its 2 V to 15 V supply range permits use with low-voltage embedded systems as well as higher-voltage industrial bus interfaces, subject to the individual bus voltage and logic-threshold requirements. The P82B96 uses a non-latching bidirectional buffer arrangement so each buffered line can carry traffic in either direction. The two-buffer architecture separates the source-side and destination-side bus segments, allowing logic-level translation when the two buses operate at different voltages. The exact enable, ground, voltage-domain, and data-pin assignments require confirmation from the manufacturer datasheet before PCB routing or replacement qualification. Typical applications include level translation between microcontroller and sensor buses, extending an I2C connection between circuit boards, isolating bus capacitance on longer wiring, and connecting peripheral groups with different supply voltages. The 400 kHz operating limit makes it appropriate for conventional I2C devices rather than designs requiring 1 MHz I2C or faster modes. The primary design consideration is preserving the correct pull-up arrangement on each bus segment. Adding buffer separation can help isolate capacitance, but inappropriate pull-up strength or excessive cable length can still cause timing failures. Engineers should verify logic thresholds, bus capacitance, rise-time limits, and the exact pinout against the Texas Instruments P82B96 datasheet. This page consolidates manufacturer and distributor information, source-backed pricing, replacement availability, application guidance, and comparison criteria for engineers evaluating the P82B96DGKRG4. It also distinguishes verified ordering information from parameters that still require direct datasheet confirmation.
P82B96DR - 400kHz Bidirectional I2C Buffer | Texas Instruments (Tape & Reel)
The Texas Instruments P82B96DR is a 2-bit dual bidirectional bus buffer and cable extender for I2C-compatible systems, supporting operation from 2V to 15V and data rates up to 400kHz in an 8-pin SOIC package. The device isolates or extends two-wire buses while permitting communication between systems operating at different logic voltage levels. Its two bidirectional channels support bus-segmentation, voltage-level translation, and cable-extension applications where signal integrity and fault containment are important. A bidirectional bus buffer is an interface IC that regenerates and electrically separates a two-wire bus while preserving data flow in either direction. In the signal-conditioning hierarchy, it belongs to the bus-buffer and repeater family within interface ICs. Unlike a one-way level translator, a bidirectional buffer automatically detects the direction of bus traffic and allows either endpoint to become the bus master, making it suitable for I2C and SMBus-compatible links. The P82B96DR operates across a 2V-to-15V supply range and supports bus logic levels from 2V to 15V. According to the Texas Instruments product page and datasheet, it provides two bidirectional I/O paths, a maximum data rate of 400kHz, and compatibility with I2C buses operating at different voltage levels. The SOIC-8 package supports conventional surface-mount assembly while providing separate access to both bus sides. Its non-latching bidirectional interface avoids a direction-control pin and uses differentiated logic-low behavior to prevent latching. The device can bridge normal I2C logic signals to another bus configuration, including a second P82B96, while its electrical isolation helps limit fault propagation between connected systems. The manufacturer documentation also warns that two Sx or Sy nodes on the same side must not be connected together. Typical applications include I2C bus extenders, level translation between 2V and 15V domains, SMBus-compatible isolation, cable segmentation, industrial control modules, embedded sensor networks, and test systems requiring a robust 400kHz bus repeater. The device is particularly useful where long interconnects, mixed logic voltages, or removable cable sections could otherwise degrade communication reliability. When integrating the P82B96DR, preserve the I2C pull-up arrangement on each bus segment and keep the buffer close to the bus being extended. Confirm the complete system voltage range, rise-time budget, capacitance, and fault-current behavior against the manufacturer datasheet. The 400kHz rating should not be treated as a guarantee for every cable length or load combination. This page consolidates manufacturer specifications, distributor availability, verified drop-in alternatives, and practical selection guidance. It highlights the P82B96DR’s voltage-range and bidirectional-buffer advantages while clearly identifying details that require confirmation before PCB release.
P82B96DRG4 - 2-15V Dual I2C Buffer | Texas Instruments
The Texas Instruments P82B96DRG4 is a dual bidirectional I2C/SMBus bus buffer and cable extender with a 2 V to 15 V operating power-supply range, 400 kHz signaling, and an 8-pin SOIC package. It supports bidirectional data transfer, allows I2C buses operating at different logic levels to communicate, and is intended for extending a main bus over a larger capacitive load. An I2C bus buffer is an interface IC that regenerates or isolates a bidirectional serial bus while preserving clock and data signaling. The P82B96 belongs to the broader bus-buffer and signal-buffer hierarchy, supporting the I2C/SMBus ecosystem. Its two channels can support level translation or cable extension where the connected devices do not share identical logic voltage conditions. The P82B96DRG4 is specified for a 400 kHz bus frequency and a 2 V to 15 V operating supply range. The verified distributor and manufacturer listings identify it as a dual bidirectional bus buffer, while the product page identifies it as a 2-bit I2C/SMBus buffer/cable extender. The SOIC-8 package is surface-mount and is identified in distributor listings as an 8-SOIC device. Exact pin names, pinout details, electrical limits, and capacitance values are not supplied in the verified snippets and are therefore not inferred here. Its main engineering value is bus isolation and extension rather than high-speed differential signal conditioning. Bidirectional operation allows the same connection to carry data in either direction, which is required by I2C clock and data lines. The 400 kHz rating makes the device relevant to standard-speed I2C systems, while the broad supply range supports systems spanning multiple common logic domains when the associated datasheet limits are respected. Typical uses include extending an I2C bus between a controller and remote sensors, isolating a noisy or high-capacitance bus section, connecting I2C devices operating at different logic levels, and reducing loading on a host bus. Designers should verify signal timing, pull-up resistor placement, supply sequencing, logic thresholds, and the maximum supported bus capacitance against the manufacturer datasheet before production use. This page synthesizes verified manufacturer and distributor information, package identifiers, purchasing references, and design guidance. It does not invent missing electrical parameters, pin names, pricing values, or alternative cross-references that were not present in the supplied data.
P82B96P - 2-Channel 400kHz I2C Buffer | Texas Instruments
The Texas Instruments P82B96P is a 2-bit bidirectional I2C/SMBus buffer and cable extender operating from 2 V to 15 V at up to 400 kHz, supplied in an 8-pin PDIP package. It creates a non-latching interface between I2C buses operating at different logic levels or with different current requirements. Two Sx/Sy channels preserve bidirectional communication without separate direction-control pins. An I2C bus buffer is a signal-conditioning semiconductor that isolates or extends bus nodes, reduces loading, and can translate between logic domains. In the interface hierarchy, the P82B96 belongs to the I2C controller/buffer and extender class, then to bus-interface ICs and interface semiconductors. Its purpose is to improve compatibility among I2C master and slave devices operating across logic levels from 2 V to 15 V. Key features include two bidirectional channels, a 2 V to 15 V operating power-supply range, and a stated 400 kHz operating frequency. The device supports bidirectional data transfer and can connect buses with different voltage and current levels. The PDIP package is suitable for conventional through-hole assembly and prototyping, while its non-latching design avoids requiring an explicit direction-control signal. Technically, the P82B96 uses slightly different logic-low voltage levels on the Sx/Sy side to prevent latching in bidirectional operation. The manufacturer states that two or more Sx or Sy I/O nodes must not be connected together on the same node because the design does not support that configuration. Bus capacitance, rise time, pull-up resistance, and logic-level limits must therefore be checked during implementation. Typical uses include isolating I2C subsystems, connecting devices operating at 2 V through 15 V logic levels, interfacing with SMBus-style systems, and improving electrical loading on longer bus segments. The P82B96 is also appropriate when a standard bus needs an intermediate buffer node rather than a directional translator. For PCB implementation, preserve the manufacturer-recommended pull-ups on each bus side, keep the buffer close to the bus split, and route each side as a continuous bidirectional node. Do not combine multiple Sx or Sy outputs on one node. Confirm timing, voltage, capacitance, and logic-level compatibility before treating the 400 kHz rating as guaranteed for a particular bus. This page consolidates manufacturer and distributor information, replacement assessment, timing considerations, and practical design guidance for engineers evaluating the P82B96P.
P82B96PN - Dual 2-15V I2C Bus Buffer | NXP Semiconductors
NXP Semiconductors P82B96PN is a dual bidirectional I2C bus buffer with a 2 V to 15 V operating-voltage range, 400 kHz bus capability, and a low-power supply input. The device is supplied in an 8-pin SOT97-1 plastic DIP package and is designed to split an I2C connection into separate forward and reverse transmit and receive paths. An I2C bus buffer is an interface IC that electrically isolates or reorganizes bidirectional bus signals while preserving two-wire communication. The P82B96 belongs to the buffer and line-driver hierarchy within interface ICs and power-management-adjacent signal conditioning. Its two independent I2C channels handle SCL and SDA signals, providing controlled signal routing for boards, modules, or cable-linked devices where direct capacitive loading or bus segmentation would otherwise reduce reliability. The principal operating specifications are a 2 V to 15 V supply-voltage range, support for I2C operation up to 400 kHz, and a temperature range from -40 °C to +85 °C. The device provides separate Tx, Rx, Ty, and Ry signals alongside the Sx and Sy bus-side pins, allowing each I2C channel to be divided into forward and reverse paths. Its low supply-current design is suitable for power-conscious embedded systems. Technically, the P82B96 uses bidirectional I2C-capable I/O structures rather than a unidirectional buffer with an external direction-control pin. According to the manufacturer datasheet, the Sx and Sy side accepts normal I2C logic levels and can also connect to Tx or Rx signals from another P82B96. The Tx/Rx and Ty/Ry pins use standard I2C logic levels, while the bus-side low-voltage behavior is intentionally slightly different to avoid latching. Typical uses include isolating an I2C master from a remote sensor module, extending the usable separation between two bus nodes, splitting SCL and SDA into directional test paths, and supporting cable-based I2C links in industrial or consumer equipment. The 2 V to 15 V supply range accommodates conventional 2.5 V, 3.3 V, 5 V, and higher-voltage interface environments where device-level compatibility is confirmed. Designers should verify all logic-level thresholds, capacitance, propagation delay, and bus timing against the NXP datasheet before relying on the buffer in a new system. Decoupling and signal-routing practices must prevent the remote bus node from introducing excessive loading, ringing, or unintended multiple-driver conditions. Two or more Sx or Sy I/O nodes must not be connected together on the same node. This product record combines verified NXP specifications, distributor availability references, same-package replacement analysis, and practical design guidance. It identifies the documented benefits and constraints of the P82B96PN while distinguishing true DIP-8 alternatives from parts that require a different footprint.