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Home > Products > Integrated Circuits (ICs) > Logic > Gates and Inverters

STMicroelectronics 74LVX27MTR

Name: 74LVX27MTR
Brand: STMicroelectronics
SKU: 74LVX27MTR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 74LVX27MTR

Manufacturer:: STMicroelectronics

Category:: Gates and Inverters

Package:: 14-SOIC (0.154", 3.90mm Width)

Datasheet:: 74LVX27MTR.pdf

Description:: IC GATE NOR 3CH 3-INP 14SO

Quantity:: RFQ Add To RFQ list

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Product details

Overview

74LVX27MTR from STMicroelectronics is a low-voltage CMOS triple 3-input NOR gate with 5V-tolerant inputs, operating from 2V to 3.6V supply, delivering 4.1ns typical propagation delay at 3.3V, ±4mA symmetrical output drive, and 2µA max quiescent current at 25°C. It enables logic-level translation between 5V and 3.3V systems in portable instrumentation and battery-powered interface modules.

For engineers reviewing the 74LVX27MTR datasheet, 74LVX27MTR pinout, 74LVX27MTR application, or 74LVX27MTR equivalent, key selection criteria include 5V input tolerance, sub-10ns propagation delay at 3.3V, symmetrical output impedance, low-noise VOLP (0.3V typ), and guaranteed operation down to -55°C for industrial control and automotive body electronics.

Technical Context

The device implements three independent NOR gates using sub-micron C2MOS technology with buffered outputs, providing high noise immunity and stable switching across its full 2V–3.6V operating range. Input protection allows 0–7V input voltage regardless of VCC, enabling robust interfacing without external level shifters.

All inputs feature power-down protection and 2kV HBM ESD immunity; outputs support symmetrical sourcing/sinking (≥4mA) and exhibit balanced tPLH/tPHL delays. Dynamic input thresholds (VIHD = 2V, VILD = 0.8V at VCC = 3.3V) ensure reliable logic recognition under noisy conditions.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CC Operating Range	2.0V to 3.6V - supports single-supply 3.3V systems with 1.2V data retention during sleep
t_PD Propagation Delay	4.1ns (typ) at V_CC = 3.3V, CL = 15pF - enables high-speed combinational logic in timing-critical paths
I_OH/I_OL Output Drive	±4mA (min) - provides sufficient fan-out for driving multiple 3.3V CMOS loads without buffering
V_IL/V_IH Input Thresholds	0.8V / 2.0V at V_CC = 3.0V - ensures compatibility with TTL and 5V CMOS logic levels
I_CC Quiescent Current	2µA (max) at T_A = 25°C - minimizes standby power in battery-operated devices
V_OLP Quiet Output Noise	0.3V (typ) at V_CC = 3.3V - reduces ground bounce and crosstalk in dense PCB layouts
ESD Immunity	2kV HBM - protects against handling damage during assembly and field operation

Pinout & Package

SOP-14 (Small Outline Package, 150mil width), JEDEC MS-012AC compliant, tape-and-reel packaged as indicated by "MTR" suffix.

Pin/Terminal	Circuit Role	Design Meaning
1, 3, 9	1A, 2A, 3A - Gate 1–3 Input A	Primary logic inputs accepting 0–7V regardless of V_CC; enable 5V-to-3.3V interface without external clamping
2, 4, 10	1B, 2B, 3B - Gate 1–3 Input B	Secondary logic inputs with identical 5V-tolerant structure and input leakage < ±1µA at V_IN = 5V
13, 5, 11	1C, 2C, 3C - Gate 1–3 Input C	Third input per gate; all inputs share same ESD protection and dynamic threshold behavior
12, 6, 8	1Y, 2Y, 3Y - Gate 1–3 Output	NOR outputs with symmetrical rise/fall times and guaranteed VOH ≥ 2.58V @ I_O = –4mA (V_CC = 3.0V)
7	GND	Dedicated ground reference; decoupling capacitor placement adjacent to this pin suppresses switching noise
14	V_CC	Positive supply terminal; requires local 100nF ceramic bypassing to GND for stable high-speed operation

Key Features

Feature	Design Value
5V-tolerant inputs	Accepts 0–7V input signals independent of V_CC, eliminating need for external level translators in mixed-voltage systems
Low dynamic noise (VOLP)	0.3V typical quiet-output noise at 3.3V ensures signal integrity in noise-sensitive analog-digital hybrid boards
Balanced propagation delays	t_PLH ≅ t_PHL minimizes duty-cycle distortion in clocked logic chains and synchronous state machines
Improved latch-up immunity	Sub-micron C2MOS process with double-layer metal prevents destructive SCR triggering under transient overvoltage
Power-down input protection	Inputs remain high-impedance and non-latching when V_CC = 0V, preventing back-powering of upstream circuitry

Applications

Industrial Sensor Interface

Automotive Body Control Module

Use Scenario: Aggregating fault signals from multiple 5V sensors (e.g., door position, seatbelt status) into a 3.3V microcontroller input.

IC Role / Device Role / Timing Role: Level-translating NOR gate performing wired-OR fault detection with active-low assertion.

Use Value: Eliminates discrete resistor-divider networks while maintaining noise margin and ESD robustness across temperature.

Use Scenario: Combining ignition-switch, brake-pedal, and gear-selector signals to enable/disable interior lighting subsystems.

IC Role / Device Role / Timing Role: Combinational logic element implementing safety interlock logic with deterministic propagation (<9ns worst-case).

Use Value: Guarantees response within 10ns across –40°C to 125°C, meeting ASIL-B timing constraints without derating.

Portable Medical Monitor

Industrial PLC I/O Expansion

Use Scenario: Debouncing and OR-ing multiple low-power sensor alerts (ECG lead-off, SpO₂ saturation drop) before waking an ARM Cortex-M0+ MCU.

IC Role / Device Role / Timing Role: Ultra-low-quiescent NOR gate acting as interrupt combiner in always-on monitoring path.

Use Value: Draws only 2µA static current, extending coin-cell battery life beyond 5 years in standby mode.

Use Scenario: Interfacing legacy 5V digital I/O cards with modern 3.3V FPGA-based controller backplanes.

IC Role / Device Role / Timing Role: Voltage-domain translator and signal conditioner for discrete output enable lines.

Use Value: Supports hot-swap insertion via 0–7V input tolerance and eliminates risk of bus contention during power sequencing.

Equivalent & Alternatives

The following parts are listed as comparable options for similar triple 3-input NOR gate applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
74LVC27PW,118	Lower V_CC min (1.65V), higher I_OL (24mA), no 5V tolerance on inputs	Requires external clamping for 5V inputs; better suited for pure 1.8–3.3V systems	Select when operating below 2.0V or needing higher drive strength; avoid if interfacing 5V sources
SN74LV27APWR	Wider V_CC range (2–5.5V), identical 5V-tolerant inputs, slightly slower t_PD (5.5ns typ)	Compatible with 5V supply rails; suitable for dual-rail designs where V_CC may be 5V	Prefer when system uses 5V logic elsewhere or requires extended voltage flexibility beyond 3.6V

Compared with 74LVX27MTR, the 74LVC27PW offers lower voltage operation but lacks 5V input tolerance, while SN74LV27APWR extends supply range to 5.5V at the cost of 35% longer propagation delay-making the 74LVX27MTR optimal for 3.3V-only, noise-sensitive, battery-constrained designs requiring precise 5V interfacing.

Availability

74LVX27MTR is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive body control modules, portable medical monitors, and PLC I/O expansion requiring stable component supply and long-term lifecycle support.

Supply support for 74LVX27MTR 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, designing and manufacturing analog, digital, and mixed-signal ICs for automotive, industrial, and consumer markets.

The LVX logic family targets low-voltage, low-noise, 3.3V system interfacing with 5V-tolerant inputs-specifically engineered for battery-powered instrumentation, industrial controls, and automotive sub-systems demanding robust mixed-voltage operation.

FAQ

Can 74LVX27MTR operate with V_CC = 1.8V?

No. The recommended operating V_CC range is strictly 2.0V to 3.6V per Table 5. At 1.8V, DC parameters including V_OH, V_OL, and noise margins fall outside specification, and propagation delay increases unpredictably. Data retention is guaranteed only down to 1.2V, not functional operation.

Is the 74LVX27MTR pin-compatible with standard 74LS27?

Yes-pinout and logic function match the 74-series 27 triple 3-input NOR gate, including identical SOP-14 footprint and terminal assignments. However, electrical behavior differs: LVX has 5V-tolerant inputs, lower drive strength than LS, and operates at 3.3V rather than 5V, so direct substitution requires voltage domain verification.

What is the maximum capacitive load this device can drive reliably?

The device is characterized up to 50pF load capacitance (Table 7), with t_PD = 9.7ns (max) at V_CC = 3.3V. Driving >50pF increases delay nonlinearly and may cause excessive VOLP; for >75pF loads, add series termination or buffer stages to maintain timing and noise performance.

Does 74LVX27MTR support hot-plug operation when V_CC is unpowered?

Yes. Power-down protection on all inputs allows 0–7V signals to be applied even when V_CC = 0V, preventing back-current flow and latch-up. This enables safe insertion into live backplanes or hot-swap I/O modules without damaging the device or upstream drivers.

74LVX27MTR Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: 74LVX

Package/Case:: 14-SOIC (0.154", 3.90mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Logic Type:: NOR Gate

Number of Circuits:: 3

Number of Inputs:: 3

Features:: -

Voltage - Supply:: 2V ~ 3.6V

Current - Quiescent (Max):: 2 µA

Current - Output High, Low:: 4mA, 4mA

Input Logic Level - Low:: 0.5V ~ 0.8V

Input Logic Level - High:: 1.5V ~ 2.4V

Max Propagation Delay @ V, Max CL:: 9.7ns @ 3.3V, 50pF

Operating Temperature:: -55°C ~ 125°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 14-SO

74LVX27MTR FAQ

1.How can I place an order for 74LVX27MTR through Aetrix?

Please submit a Request for Quotation (RFQ) for 74LVX27MTR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for 74LVX27MTR reliable?

The price and inventory of 74LVX27MTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVX27MTR is usually 5 days.

3.What payment methods are accepted for 74LVX27MTR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVX27MTR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 74LVX27MTR?

74LVX27MTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74LVX27MTR order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for 74LVX27MTR?

For technical support, including 74LVX27MTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVX27MTR requirements.

6.How does Aetrix verify that 74LVX27MTR is sourced from the original manufacturer or authorized distributors?

All 74LVX27MTR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 74LVX27MTR meets industry standards.

7.What is the process for return or replacement of 74LVX27MTR?

All 74LVX27MTR units undergo pre-shipment inspection (PSI). If there is an issue with 74LVX27MTR, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The 74LVX27MTR part is unused and in its original packaging.

Return procedure for 74LVX27MTR:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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