NXP Semiconductors HEF4952BT,118

Overview

HEF4952BT,118 from NXP Semiconductors is a dual 3-channel analog multiplexer/demultiplexer with supplementary switches and common select logic, operating across −40 °C to +85 °C. It features Schmitt-trigger inputs, 5–15 V parametric ratings, ON resistance as low as 45 Ω at 10 V, and standardized symmetrical output characteristics for precision signal routing in industrial instrumentation.

For engineers reviewing the HEF4952BT,118 datasheet, HEF4952BT,118 pinout, HEF4952BT,118 application, or HEF4952BT,118 equivalent, this device supports analog/digital multiplexing, signal gating, and bidirectional switching in mixed-signal systems requiring stable channel isolation and low-leakage performance.

Technical Context

The HEF4952BT,118 integrates two independent 3-channel analog MUX/DEMUX blocks sharing three digital select inputs (S1–S3), enabling synchronized channel selection. Each block provides four Y terminals (nY0–nY3) and one common Z terminal (nZ), with nY3 configurable to connect to nY2 or VSS.

Its internal logic includes 3-to-5 decoder and level-shifting circuitry, supporting operation with VDD = 5–15 V and VEE = −15 to 0 V relative to VSS. Clamp diodes on all digital inputs allow safe interfacing with overvoltage signals when used with current-limiting resistors.

Key Specifications

Pinout & Package

HEF4952BT,118 is housed in a plastic small outline package (SO16), 16-pin, body width 3.9 mm (SOT109-1), suitable for surface-mount assembly and automated reflow processes.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar analog multiplexer/demultiplexer applications.

Compared with CD4052BE and ADG1414BRUZ, the HEF4952BT,118 uniquely combines dual synchronized MUX/DEMUX blocks, VEE-supported bipolar operation, and programmable nY3 connectivity - making it optimal for industrial systems requiring robust, configurable analog signal routing with minimal external components.

Availability

HEF4952BT,118 is available at Aetrix Electronics and suitable for industrial process monitoring, automated test equipment, and programmable logic controller I/O expansion requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for HEF4952BT,118 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT applications.

The HEF4952BT,118 belongs to NXP's legacy logic and analog switch portfolio, designed specifically for industrial-grade signal routing where reliability, wide supply range, and noise-immune control are essential.

FAQ

What is the maximum allowable voltage difference between VDD and VEE for HEF4952BT,118?

The HEF4952BT,118 supports a maximum VDD − VEE differential of 15 V, as defined in the recommended operating conditions. This allows configurations such as VDD = +15 V and VEE = 0 V, or VDD = +10 V and VEE = −5 V - enabling true bipolar analog signal handling within the device's specified operating area.

Does HEF4952BT,118 support simultaneous switching of both MUX/DEMUX blocks?

Yes, HEF4952BT,118 uses common select inputs S1, S2, and S3 for both blocks, ensuring fully synchronized channel selection. The internal 3-to-5 decoder routes identical address codes to both 1Y/1Z and 2Y/2Z sections - eliminating timing skew and simplifying control logic in applications like parallel data acquisition.

Can HEF4952BT,118 be used with 3.3 V logic control signals?

No - HEF4952BT,118 requires VDD ≥ 5 V for guaranteed Schmitt-trigger operation; its positive-going threshold VT+ is 2.90 V min at VDD = 5 V. At 3.3 V supply, input thresholds fall outside specification, risking unreliable switching. Use level-shifting circuitry or select a 3.3 V-compatible alternative if needed.

How does the nY3 terminal function in HEF4952BT,118?

In HEF4952BT,118, the nY3 terminal is configurable via the function table: it connects either to VSS (ground) or to nY2 depending on S1–S3 state. This supplementary switch enables dynamic termination (e.g., grounding unused channels) or signal path extension (e.g., cascading nY2 to nY3), adding topological flexibility not found in standard MUX ICs.

Is HEF4952BT,118 RoHS compliant and lead-free?

Yes, HEF4952BT,118 is manufactured in accordance with RoHS Directive 2011/65/EU and is lead-free. The SO16 package (SOT109-1) uses lead-free solderable terminations, and material declarations confirm compliance with EU REACH and conflict minerals reporting requirements.