Diodes Incorporated 74LVCE1G125W5-7

Overview

74LVCE1G125W5-7 from Diodes Incorporated is a single non-inverting buffer gate with 3-state output, designed for voltage-level shifting and bus driving in mixed-voltage systems. It operates from 1.4V to 5.5V, tolerates 5.5V inputs, delivers ±24mA output drive at 3.3V, and supports partial power-down via IOFF circuitry - enabling use in PC peripherals, set-top boxes, and portable electronics.

For engineers reviewing the 74LVCE1G125W5-7 datasheet, 74LVCE1G125W5-7 pinout, 74LVCE1G125W5-7 application, or 74LVCE1G125W5-7 equivalent, key selection criteria include its 1.4–5.5V supply range, 5.5V-tolerant inputs, IOFF-enabled power-down isolation, and SOT25 package compatibility with space-constrained logic interfaces.

Technical Context

This device implements a CMOS-based non-inverting buffer with active-low 3-state enable (OE), where OE = LOW enables Y = A and OE = HIGH forces Y into high-impedance. Its IOFF circuit disables both output FETs during power-down, blocking current backflow when VCC = 0V while inputs/outputs remain biased up to 5.5V.

Switching performance is characterized across VCC = 1.5V–5.5V: propagation delay tPD is 0.4–3.0 ns (CL = 15pF), and enable/disable times (tEN/tDIS) are as low as 0.8 ns at 3.3V. Input transition rate limits (20 ns/V at 1.4–3V) ensure robust noise immunity in high-speed digital interfaces.

Key Specifications

Pinout & Package

SOT25 (SC-74A) 5-pin surface-mount package with standard pinout: Pin 1 = A (input), Pin 2 = OE (active-low enable), Pin 3 = Y (output), Pin 4 = VCC, Pin 5 = GND.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar single 3-state buffer applications.

Compared with SN74LVC1G125DBVR and 74LVC1G125GW,125, the 74LVCE1G125W5-7 uniquely supports 1.4V operation and IOFF, making it the only option for ultra-low-voltage battery systems requiring robust power-domain isolation.

Availability

74LVCE1G125W5-7 is available at Aetrix Electronics and suitable for PC peripheral interfaces, set-top box bus isolation, portable GPS receiver logic interfaces, and industrial sensor hub signal conditioning requiring stable component supply across automotive, industrial, and consumer production programs.

Supply support for 74LVCE1G125W5-7 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

Diodes Incorporated is a global manufacturer of discrete semiconductors and integrated circuits, specializing in high-performance, energy-efficient solutions for power management, signal integrity, and protection.

The 74LVCE1G125 belongs to Diodes' LVCE logic family, engineered for ultra-wide supply range and mixed-voltage interoperability in portable, computing, and consumer electronics.

FAQ

What is the minimum operating voltage for the 74LVCE1G125W5-7?

The device is fully specified down to 1.4V supply voltage, with functional operation confirmed at 1.2V for data retention only. At 1.4V, it delivers guaranteed 3mA output drive and meets all AC timing specifications including tPD ≤ 6.9ns (CL = 15pF). This enables direct use with single-cell Li-ion or Li-poly batteries without regulation.

Does the 74LVCE1G125W5-7 support hot insertion or live swapping?

Yes - its IOFF circuit actively disables both output FETs when VCC = 0V, limiting I/O leakage to ±10μA even when pins are biased to 5.5V. This prevents back-current flow into unpowered circuit sections, satisfying hot-swap requirements in modular computing and telecom line cards per JEDEC JESD78 Class II latch-up immunity.

Can the 74LVCE1G125W5-7 drive a 50Ω transmission line?

At 3.3V, the device provides ±24mA output drive, enabling direct termination of 50Ω lines with series or parallel resistive matching. Measured tPD of 0.4–3.0ns (CL = 15pF) supports clean edges up to 300MHz, and its 21pF enabled power dissipation capacitance minimizes jitter accumulation in high-speed clock distribution paths.

Is the SOT25 package of the 74LVCE1G125W5-7 RoHS compliant and halogen-free?

Yes - the SOT25 package uses lead-free matte tin finish and "green" halogen-free molding compound containing no bromine or antimony, fully compliant with EU Directive 2002/95/EC (RoHS) and meeting IPC-4101D/126 requirements for environmentally conscious manufacturing.