Nexperia USA Inc. 74LVC126ADB,118

Overview

74LVC126ADB,118 from Nexperia is a quad buffer/line driver with 3-state outputs, designed for bidirectional bus interface and level translation between 1.65 V and 3.6 V logic domains. It features ±24 mA output drive, 3.4 ns typical propagation delay at 3.3 V, and operates over -40 °C to +125 °C.

For engineers reviewing the 74LVC126ADB,118 datasheet, 74LVC126ADB,118 pinout, 74LVC126ADB,118 application, or 74LVC126ADB,118 equivalent, key selection criteria include 3-state control timing, bus hold capability absence, ESD rating (±2 kV HBM), and compatibility with LVTTL and LVCMOS systems in industrial I/O expansion.

Technical Context

This device implements four independent non-inverting buffers, each with active-low 3-state enable (1OE–4OE). All outputs enter high-impedance state when respective OE is HIGH, enabling shared bus operation without external pull-ups. Input thresholds are TTL-compatible at V_CC = 3.3 V.

It uses silicon-gate CMOS technology for low static power consumption (< 10 µA ICC at 3.3 V) and rail-to-rail input voltage range (–0.5 V to V_CC + 0.5 V). No bus-hold or Schmitt-trigger inputs are integrated.

Key Specifications

Pinout & Package

Supplied in 14-pin SSOP (Shrink Small Outline Package) with 0.65 mm pitch, body width 5.3 mm, and JEDEC MO-153 compliant footprint.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC126APW,118 and 74LVC126AD,118, the 74LVC126ADB,118 offers optimal PCB area efficiency and thermal performance for automated SMT production in space-constrained industrial modules.

Availability

74LVC126ADB,118 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, automotive body control modules, and medical diagnostic equipment requiring stable component supply across extended temperature ranges.

Supply support for 74LVC126ADB,118 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, delivering high-performance logic, discrete, and MOSFET solutions for automotive, industrial, and consumer markets.

The 74LVC logic family targets high-speed, low-power, mixed-voltage interface applications where reliability, small footprint, and wide operating range are critical design requirements.

FAQ

What is the maximum clock frequency supported by 74LVC126ADB,118 in a data bus application?

The device does not operate as a clocked element but supports data rates up to 200 Mbps in parallel bus configurations. This is derived from its 5.6 ns maximum propagation delay and 0.5 ns typical skew, ensuring setup/hold timing compliance for synchronous interfaces running at ≤100 MHz clock rates with double-data-rate signaling.

Does 74LVC126ADB,118 include bus-hold or weak pull-up circuitry on inputs?

No. The 74LVC126ADB,118 has no internal bus-hold or pull-up/pull-down resistors on any input or output pin. External termination must be provided if floating inputs are possible in the target application, especially in hot-swap or unpowered subsystem scenarios.

Can this device safely interface between 1.8 V and 5 V logic domains?

It can translate from 1.8 V to 3.3 V or 2.5 V domains, but not to 5 V. Inputs tolerate up to V_CC + 0.5 V, so applying 5 V to inputs when V_CC = 3.3 V exceeds absolute maximum rating and risks permanent damage. A dedicated level shifter is required for 5 V interfacing.

Is 74LVC126ADB,118 suitable for hot-plug applications?

Yes. It is specified for hot-switching per JEDEC JESD78, meaning outputs can be connected to or disconnected from a live bus without causing latch-up or parametric shift. This is validated under conditions of V_CC = 3.3 V and ambient temperature ≤85 °C with controlled slew rate transitions.