STMicroelectronics 74LVQ4066MTR

Overview

74LVQ4066MTR from STMicroelectronics is a low-voltage CMOS quad bilateral analog/digital switch with independent enable inputs, 14Ω typical ON-resistance at 5V, 0.1 ns typical propagation delay at 5V, and 2 µA max quiescent current - deployed in precision signal routing for mixed-signal instrumentation and low-noise audio switching.

For engineers reviewing the 74LVQ4066MTR datasheet, 74LVQ4066MTR pinout, 74LVQ4066MTR application, or 74LVQ4066MTR equivalent, key selection criteria include guaranteed R_ON matching across channels, sub-1 ns switching latency at 3.3V/5V, ESD-protected I/O terminals, and compatibility with legacy 74-series control logic levels.

Technical Context

This device implements four independent bidirectional transmission gates, each controlled by a dedicated active-high enable input (1C–4C), supporting analog signals up to V_CC peak without polarity restriction. Its sub-micron C2MOS process delivers latch-up immunity and rail-to-rail signal handling with <0.04% THD at 1 kHz.

DC operation spans 2V–5.5V; AC performance is characterized at CL = 50 pF with 3 ns input rise/fall times. Feedthrough attenuation exceeds –60 dB at 1 MHz, and crosstalk between switches is ≤ –60 dB under identical conditions.

Key Specifications

Pinout & Package

74LVQ4066MTR is housed in a 14-pin SOIC (Small Outline Integrated Circuit) package with tape-and-reel delivery (SOP). Dimensions conform to JEDEC MS-012, with 1.27 mm pitch and 8.55–8.75 mm body length.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad bilateral switch applications.

Compared with 74LVC4066PW and ADG1412BRUZ, the 74LVQ4066MTR uniquely balances low distortion (0.04% THD), wide temperature range (–55 °C to +125 °C), and single-supply compatibility - making it optimal for cost-sensitive, high-fidelity mixed-signal systems where both analog integrity and digital control simplicity matter.

Availability

74LVQ4066MTR is available at Aetrix Electronics and suitable for audio signal routing, precision data acquisition, test equipment signal path, and digital logic level translation requiring stable component supply and long-term industrial availability.

Supply support for 74LVQ4066MTR 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power management ICs, analog switches, and MEMS sensors for industrial, automotive, and consumer markets.

The 74LVQ series targets low-voltage, low-power, high-speed logic and analog switching applications - specifically engineered to replace legacy 74HC/74LS families while delivering improved noise immunity, reduced power, and enhanced analog performance.

FAQ

What is the maximum analog signal amplitude supported by the 74LVQ4066MTR?

The device supports analog signals with amplitudes up to V_CC (peak) in either direction - meaning a 5 V supply allows ±5 V peak-to-peak signals centered at any DC bias between GND and V_CC. This rail-to-rail capability is confirmed in the datasheet's description and Figure 1, and applies across the full operating temperature range.

Does the 74LVQ4066MTR require external pull-up or pull-down resistors on its enable inputs?

No. The enable inputs (1C–4C) have CMOS-compatible thresholds and do not require external biasing. With V_IL ≤ 0.3V_CC and V_IH ≥ 0.7V_CC, they interface directly with standard 3.3 V or 5 V logic outputs. Internal protection diodes and leakage current limits (<1.0 µA) eliminate need for external resistors.

Can the 74LVQ4066MTR be used in a single-supply 3.3 V system with AC-coupled audio signals?

Yes. At V_CC = 3.3 V, it achieves 0.04% THD at 1 kHz and 14 Ω typical R_ON, making it suitable for line-level and microphone-level audio switching. AC coupling is supported because the switch passes signals symmetrically around any DC bias point within the 0–3.3 V range, as verified in Table 8 and Figure 4.

Is the 74LVQ4066MTR pinout compatible with standard 74HC4066 devices?

Yes - the pinout and logic function are fully compatible with the 74HC4066 and 74LS4066 families. Pin assignments for I/O, O/I, enable, V_CC, and GND match exactly, allowing drop-in replacement in existing designs. However, R_ON is significantly lower (12 Ω vs. ~60 Ω) and propagation delay is faster (0.1 ns vs. ~15 ns), improving analog and timing performance.