Nexperia USA Inc. 74CBTLV1G125GS,132

Overview

74CBTLV1G125GS,132 from Nexperia is a single high-speed CMOS bus switch with active-low output enable (OE), 5 Ω typical ON-resistance at 3.3 V, rail-to-rail data I/O switching, and IOFF partial power-down protection. It operates from 2.3 V to 3.6 V across –40 °C to +125 °C and is used in low-voltage signal routing for portable computing and industrial interface isolation.

For engineers reviewing the 74CBTLV1G125GS,132 datasheet, 74CBTLV1G125GS,132 pinout, 74CBTLV1G125GS,132 application, or 74CBTLV1G125GS,132 equivalent, key selection criteria include guaranteed IOFF leakage < ±10 μA at VCC = 0 V, sub-0.25 ns propagation delay at 3.3 V, Schmitt-trigger control input tolerance, and XSON6 (SOT1202) package compatibility with 0.5 mm pitch PCB layouts.

Technical Context

This device implements a single-pole, single-throw (SPST) analog switch controlled by an active-low OE input. The internal MOSFET structure enables bidirectional signal flow between A and B ports with no polarity restriction, and the IOFF circuit actively disables the switch path when VCC = 0 V to block backflow current.

Schmitt-trigger action on the OE input ensures robust noise immunity against slow-rising/falling control signals, while the 5 Ω RON (typical at VCC = 3.3 V, ISW = 64 mA) supports high-fidelity signal integrity up to 263 MHz (–3 dB bandwidth) under 50 Ω load conditions.

Key Specifications

Pinout & Package

XSON6 plastic extremely thin small outline package (SOT1202); no leads; 6 terminals; body dimensions 1.0 × 1.0 × 0.35 mm; thermal pad exposed on bottom; pin 1 index located at lower-left corner below marking code "bM".

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74CBT1G125DBVR, the 74CBTLV1G125GS,132 delivers superior high-frequency performance and smaller XSON6 footprint; versus 74LVC1G3157GW,125, it offers simpler control architecture and lower system-level BOM count for single-line isolation.

Availability

74CBTLV1G125GS,132 is available at Aetrix Electronics and suitable for portable computing, industrial sensor interfaces, and low-voltage memory bus routing requiring stable component supply across extended temperature ranges.

Supply support for 74CBTLV1G125GS,132 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 delivering high-performance, reliable, and energy-efficient components for automotive, industrial, and consumer applications.

The 74CBTLV1G125GS,132 belongs to Nexperia's CBTLV (Configurable Bus Transceiver Low-Voltage) family, engineered for ultra-low RON and fast switching in space-constrained, battery-sensitive systems.

FAQ

What is the maximum allowable voltage on the A or B port when VCC = 0 V?

The absolute maximum switch voltage (VSW) is –0.5 V to VCC + 0.5 V. When VCC = 0 V, this permits –0.5 V to +0.5 V on A or B. Exceeding these limits risks latch-up or permanent damage, as confirmed in Table 5 of the datasheet Rev. 8.

Does the 74CBTLV1G125GS,132 require external pull-up resistors on OE?

Yes - to ensure high-impedance OFF-state during power-up or power-down, OE must be tied to VCC via a pull-up resistor. The minimum value depends on the driver's current-sinking capability, as specified in Section 1 of the datasheet.

Can the 74CBTLV1G125GS,132 switch AC signals such as audio or RF?

It supports rail-to-rail analog signals up to 263 MHz (–3 dB bandwidth at 3.3 V, 50 Ω load), making it suitable for baseband audio and low-frequency RF envelope routing. However, it is not characterized for RF matching or harmonic distortion and lacks 50 Ω input/output impedance.

Is thermal pad soldering required for the SOT1202 package?

Yes - the XSON6 (SOT1202) package includes an exposed thermal pad on the bottom surface. Proper soldering of this pad to a dedicated PCB thermal plane is required to meet the 250 mW total power dissipation rating and prevent thermal shutdown at +125 °C ambient.