Nexperia USA Inc. 74LVC1G27GV,125

Overview

74LVC1G27GV,125 from Nexperia is a single 3-input NOR gate logic IC operating from 1.65 V to 5.5 V supply, featuring Schmitt-trigger inputs for noise immunity and IOFF partial power-down protection. It delivers ±24 mA output drive at 3.0 V and supports mixed-voltage interfacing between 3.3 V and 5 V systems in compact SC-74 (SOT457) packaging. Used in level translation, signal conditioning, and enable/control logic in industrial I/O modules.

For engineers reviewing the 74LVC1G27GV,125 datasheet, 74LVC1G27GV,125 pinout, 74LVC1G27GV,125 application, or 74LVC1G27GV,125 equivalent, this page provides verified functional identity, validated pin mapping, confirmed static/dynamic timing specs across temperature, real-world interface behavior with TTL/CMOS levels, and precise package mechanical data for SOT457 layout integration.

Technical Context

This device implements a single 3-input NOR Boolean function (Y = NOT(A OR B OR C)) with fully buffered CMOS outputs and Schmitt-trigger inputs that tolerate slow-rising signals and reject high-frequency noise. Its IOFF circuit actively disables outputs during power-down to prevent backflow current when VCC = 0 V.

It complies with JEDEC standards JESD8-7 (1.65–1.95 V), JESD8-5 (2.3–2.7 V), JESD8C (2.7–3.6 V), and JESD36 (4.5–5.5 V), ensuring interoperability across legacy and modern logic families. Input voltage tolerance up to 5.5 V enables direct connection to 5 V sources without external level shifters.

Key Specifications

Pinout & Package

74LVC1G27GV,125 uses the SC-74 (SOT457) plastic surface-mounted package: 6-lead, 1.7 mm body width, 0.95 mm height, lead pitch 0.65 mm, pin 1 index marked as "Y27" on lower-left corner.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC1G27DBVR, the 74LVC1G27GV,125 offers 15% smaller PCB area and better thermal performance in high-density layouts; versus 74AUP1G27GW,125, it trades 3× higher static current for full 5 V input compatibility and 40% faster propagation-making it optimal for mixed-voltage industrial control.

Availability

74LVC1G27GV,125 is available at Aetrix Electronics and suitable for industrial sensor interfaces, power sequencing control, and legacy system level translation requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74LVC1G27GV,125 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 focused on essential efficiency technologies, delivering high-performance logic, discrete, and MOSFET solutions with industry-leading quality and reliability.

The 74LVC1G27 belongs to Nexperia's LVC (Low-Voltage CMOS) logic family, designed specifically for robust, low-power, mixed-voltage digital interfacing in industrial automation, consumer electronics, and communications infrastructure.

FAQ

Can 74LVC1G27GV,125 safely interface a 5 V encoder output to a 3.3 V microcontroller input?

Yes. Its inputs tolerate up to 5.5 V independent of VCC, allowing direct connection of 5 V encoder signals to the A, B, or C pins while VCC is at 3.3 V. The output Y swings rail-to-rail between 0 V and 3.3 V, matching the MCU's input thresholds without external resistors or clamps.

Does 74LVC1G27GV,125 require external pull-up or pull-down resistors on unused inputs?

No. All inputs feature Schmitt-trigger action with defined thresholds; however, floating inputs must be avoided to prevent increased ICC and potential oscillation. Tie unused inputs directly to VCC or GND-no external resistors needed due to CMOS input structure and internal threshold stability.

What is the maximum capacitive load the 74LVC1G27GV,125 output can drive while maintaining specified tpd?

The datasheet specifies dynamic characteristics with 30–50 pF loads. At VCC = 3.3 V and 50 pF, tpd remains ≤6.8 ns. Driving >50 pF increases propagation delay nonlinearly and may cause ringing; for >100 pF loads, add a series resistor (22–47 Ω) near the output to dampen reflections without degrading logic thresholds.

How does the IOFF feature behave during brown-out conditions where VCC drops to 0.8 V?

IOFF activates only when VCC falls below ~0.5 V (per limiting values table). Between 0.5 V and 1.65 V, the device operates outside recommended conditions: outputs become weak and unpredictable, and ICC rises sharply. For brown-out resilience, use an external supervisor IC to force reset before VCC reaches 1.0 V.