NXP Semiconductors 74HCT4353D,112

Overview

74HCT4353D,112 from NXP Semiconductors (formerly Philips) is a triple 2-channel analog multiplexer/demultiplexer with address latches, designed for bidirectional signal routing in mixed-signal systems. It features ±5 V analog input voltage range, 70 Ω typical ON-resistance at 5 V supply, active-low latch enable (LE), and dual enable inputs (E1 active LOW, E2 active HIGH). It supports analog and digital multiplexing in industrial data acquisition and test equipment.

For engineers reviewing the 74HCT4353D,112 datasheet, 74HCT4353D,112 pinout, 74HCT4353D,112 application, or 74HCT4353D,112 equivalent, key selection criteria include latch-controlled channel selection timing, ±5 V analog swing capability, 5 V TTL-compatible digital control, and triple independent switch banks with break-before-make behavior.

Technical Context

The 74HCT4353D,112 implements three independent 2:1 analog switches, each with dedicated Y0/Y1 inputs/outputs and a shared Z terminal. Channel selection is controlled by three select lines (S1–S3), latched via LE to hold state during digital control transitions.

It operates with separate analog supply rails: VCC (4.5–5.5 V) for digital logic and VEE (typically −5 V or GND) enabling rail-to-rail analog operation up to ±5 V. All switches exhibit built-in break-before-make timing to prevent momentary shorting between channels.

Key Specifications

Pinout & Package

74HCT4353D,112 is housed in a 20-pin SOIC (Small Outline Integrated Circuit) package with standard 0.300-inch body width and 1.27 mm pitch. Pin 10 is GND; pin 20 is VCC; pin 9 is VEE for negative rail support.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 74HCT4353D,112, the 74HC4353D,112 trades lower power and wider supply tolerance for higher ON-resistance and slower switching, while CD4053BE lacks integrated latching and bipolar rail support-making 74HCT4353D,112 optimal for TTL-controlled, ±5 V, latch-secured analog routing.

Availability

74HCT4353D,112 is available at Aetrix Electronics and suitable for industrial data acquisition, automotive sensor conditioning, and medical instrumentation requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74HCT4353D,112 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 leader focused on secure connectivity solutions for automotive, industrial, and IoT applications, with roots in Philips' pioneering logic IC development.

The 74HCT4353D,112 belongs to NXP's legacy 74HCT high-speed CMOS logic family, engineered specifically for robust 5 V TTL-compatible analog switching in harsh environments where reliability and signal fidelity are critical.

FAQ

What is the maximum analog voltage range supported by the 74HCT4353D,112?

The 74HCT4353D,112 supports an analog voltage range from VEE to VCC, with VCC − VEE ≤ 10.0 V. When configured for bipolar operation, it accepts ±5 V signals (VEE = −5 V, VCC = +5 V). For unipolar use, VEE is tied to GND, enabling 0–5 V signal handling. This range is confirmed in the Recommended Operating Conditions table and applies directly to the 74HCT4353D,112 under all specified temperature conditions.

Does the 74HCT4353D,112 require external latching circuitry?

No, the 74HCT4353D,112 integrates address latches controlled by the active-LOW LE (latch enable) input. When LE is HIGH, the device operates transparently; when LE transitions LOW, the current states of S1–S3 are latched and held regardless of subsequent select-line changes. This eliminates the need for external D-type latches in systems with asynchronous control buses, a core feature documented in the General Description and Function Table of the 74HCT4353D,112 datasheet.

Can the 74HCT4353D,112 be used with a 3.3 V microcontroller?

The 74HCT4353D,112 is TTL-input compatible with VIH ≥ 2.0 V and VIL ≤ 0.8 V at VCC = 4.5–5.5 V, making it unsuitable for direct 3.3 V logic drive without level translation. Its input thresholds are fixed for 5 V operation; applying 3.3 V signals risks undefined switching behavior. For 3.3 V systems, a level shifter or a 3.3 V–compatible analog switch (e.g., TMUX1574) should be used instead of the 74HCT4353D,112.

What is the typical ON-resistance of the 74HCT4353D,112 at 5 V supply?

The 74HCT4353D,112 exhibits 70 Ω typical ON-resistance at VCC − VEE = 5 V, as specified in the DC Characteristics table for 74HCT devices. This value is measured under standard test conditions (IS = 100 µA, Tamb = +25 °C) and represents the peak resistance across the analog switch channel. It directly impacts signal attenuation and thermal noise in precision analog paths, and is a confirmed parameter for the 74HCT4353D,112.

Is the 74HCT4353D,112 pin-compatible with the 74HC4353D,112?

Yes, the 74HCT4353D,112 and 74HC4353D,112 share identical pinouts, package dimensions, and functional block diagrams per the Philips "74HC/HCT/HCU/HCMOS Logic Package Outlines" and "Package Information" documents. Both use the same 20-pin SOIC footprint and terminal assignments. However, they differ electrically: 74HCT4353D,112 uses TTL-compatible inputs, while 74HC4353D,112 uses CMOS-level inputs - requiring verification of driving source compatibility before substitution.