NXP Semiconductors 74HC4351D,652

Overview

74HC4351D,652 from Nexperia is an 8-channel analog multiplexer/demultiplexer with integrated address latches, designed for bidirectional signal routing in mixed-signal systems. It features three binary select inputs (S0–S2), dual enable inputs (E1 active LOW, E2 active HIGH), latch enable (LE), eight independent Yn terminals, and a common Z terminal. With typical ON resistance of 80 Ω at 4.5 V supply and ±5 V analog signal handling, it supports precision analog switching in data acquisition and sensor interface applications.

For engineers reviewing the 74HC4351D,652 datasheet, 74HC4351D,652 pinout, 74HC4351D,652 application, or 74HC4351D,652 equivalent, this page delivers verified functional behavior, SO20 package mapping, latch-controlled channel selection timing, and real-world substitution guidance - all grounded in Nexperia's Rev. 6 (25 July 2024) product data sheet.

Technical Context

The 74HC4351D,652 implements a single-pole octal-throw (SP8T) analog switch architecture with a 1-of-8 decoder driving eight independent transmission gates. Its dual enable logic (E1 LOW + E2 HIGH required for channel activation) and transparent latch (LE HIGH) enable synchronized channel selection in time-critical sampling systems.

It supports rail-to-rail analog operation from –5 V to +5 V relative to VEE/GND, with logic-level translation capability allowing 5 V CMOS control signals to manage ±5 V analog paths. Built-in clamp diodes permit safe interfacing to overvoltage inputs when used with current-limiting resistors.

Key Specifications

Pinout & Package

74HC4351D,652 is housed in a plastic small outline package (SO20, SOT163-1) with 20 leads and 7.5 mm body width. Pin 1 is marked by a notch or dot; pins are numbered counter-clockwise from the index mark.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 74HC4351D,652, the 74HCT4351D,653 offers improved input noise margin without altering system timing or layout, while the ADG708BRUZ trades integrated latching for significantly lower ON resistance and higher bandwidth - requiring redesign of control sequencing but enabling higher-fidelity RF-adjacent signal paths.

Availability

74HC4351D,652 is available at Aetrix Electronics and suitable for industrial data acquisition, automotive sensor hubs, and medical instrumentation requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74HC4351D,652 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

Nexperia is a global semiconductor expert delivering high-performance, reliable components for automotive, industrial, and consumer applications, with leadership in logic, analog, and MOSFET technologies.

The 74HC4351D,652 belongs to Nexperia's HC logic family, engineered for low-power, high-noise-immunity analog switching in mixed-signal systems demanding precision, latch synchronization, and wide supply flexibility.

FAQ

What is the maximum analog signal voltage range supported by the 74HC4351D,652?

The 74HC4351D,652 supports analog signals from –5 V to +5 V relative to VEE, enabling true bipolar operation. When VEE = 0 V and VCC = 10 V, the usable range is 0 V to 10 V; with VEE = –5 V and VCC = +5 V, the full ±5 V range is achieved - confirmed in Section 2 and Table 5 of the Rev. 6 datasheet.

Does the 74HC4351D,652 include built-in ESD protection, and what levels are specified?

Yes, the 74HC4351D,652 includes on-chip ESD protection rated to HBM > 2000 V and CDM > 1000 V (Section 2, Rev. 6). This meets JEDEC JS-001 Class 2 and JS-002 Class C3 requirements, ensuring robustness during handling, PCB assembly, and field operation without requiring external TVS devices on digital control lines.

How does the latch function operate in the 74HC4351D,652, and when is it active?

The latch in the 74HC4351D,652 is controlled by the LE (latch enable) input at pin 11. When LE is HIGH, the device operates transparently - S0–S2 changes immediately affect channel selection. When LE transitions from HIGH to LOW, the current S0–S2 state is latched, freezing the selected channel regardless of subsequent select input changes - per Table 3 function table.

Can the 74HC4351D,652 be used with split supplies, and what are the supply voltage limits?

Yes, the 74HC4351D,652 supports split supplies: VCC and VEE may be independently set, with VCC – VEE ranging from 2.0 V to 10.0 V (Table 5). For ±4.5 V operation, set VCC = +4.5 V and VEE = –4.5 V - enabling rail-to-rail analog switching while maintaining valid CMOS logic thresholds on control inputs.

What is the typical ON resistance of the 74HC4351D,652, and how does it vary with supply voltage?

The 74HC4351D,652 has a typical ON resistance of 80 Ω at VCC = 4.5 V and VEE = 0 V, 70 Ω at 6.0 V, and 60 Ω at 9.0 V (Section 2). This inverse relationship reflects reduced channel impedance at higher supply voltages - critical for minimizing insertion loss in precision analog signal paths.