Nexperia USA Inc. 74CBTLV3257PW,118

Overview

74CBTLV3257PW,118 from Nexperia is a quad 1-of-2 high-speed analog multiplexer/demultiplexer with common select (S) and active-low output enable (OE), operating from 2.3 V to 3.6 V supply, featuring 5 Ω typical ON-resistance, <0.25 ns propagation delay, and rail-to-rail signal switching - used in high-bandwidth data path routing for FPGA I/O expansion and DDR memory interface signal conditioning.

For engineers reviewing the 74CBTLV3257PW,118 datasheet, 74CBTLV3257PW,118 pinout, 74CBTLV3257PW,118 application, or 74CBTLV3257PW,118 equivalent, this device supports low-noise, low-distortion bidirectional signal routing in 3.3 V logic domains with partial power-down (IOFF) protection and Schmitt-trigger control inputs for robust timing margin in noisy industrial environments.

Technical Context

This device implements four independent bidirectional analog switches controlled by a shared S input and globally enabled/disabled via OE. Each switch connects one A port to either B1 or B2 based on S state when OE = LOW; all channels enter high-impedance OFF-state when OE = HIGH - enabling clean bus isolation during power sequencing.

The IOFF circuit ensures leakage current remains below ±50 μA when VCC = 0 V, preventing backflow damage during hot-swap or partial power-down. Schmitt-trigger action on S and OE inputs guarantees reliable switching across full VCC range (2.3–3.6 V) despite slow edge rates up to 200 ns/V.

Key Specifications

Pinout & Package

TSSOP16 package (SOT403-1): plastic thin shrink small outline, 16 leads, body width 4.4 mm, lead pitch 0.65 mm, 1.20 mm max height - optimized for high-density PCB layouts with improved thermal dissipation vs. standard SOIC.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar analog multiplexer applications.

Compared with SN74CBTLV3257PWR, the 74CBTLV3257PW,118 delivers lower ON-resistance and superior bandwidth for high-speed data routing; versus 74LVC1G3157GW,125, it provides four integrated channels in one TSSOP16 package - reducing component count and interconnect parasitics in multi-lane systems.

Availability

74CBTLV3257PW,118 is available at Aetrix Electronics and suitable for PCIe Gen3 signal routing, FPGA I/O expansion, DDR memory interface isolation, and industrial CAN FD bus arbitration requiring stable component supply across automotive and industrial temperature ranges.

Supply support for 74CBTLV3257PW,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 technologies - delivering high-performance, reliable logic, analog, and MOSFET solutions for automotive, industrial, and consumer markets.

The 74CBTLV series targets high-speed, low-power analog switching in 2.5 V/3.3 V digital systems, emphasizing signal fidelity, power-down safety, and robust ESD tolerance for mission-critical embedded interfaces.

FAQ

Can 74CBTLV3257PW,118 operate with 1.8 V supply?

No. The device is specified only for 2.3 V to 3.6 V operation per Table 6. At 1.8 V, VIH/VIL thresholds are undefined, RON increases significantly, and IOFF protection may not activate reliably - risking latch-up or signal degradation. Use 74LVC1G3157 or similar 1.65–5.5 V switches instead.

What is the maximum recommended load capacitance for 100 MHz signal routing?

At 100 MHz, total capacitive load (including CS(ON) = 14.3 pF, PCB trace, and destination input) should remain ≤25 pF to maintain <0.5 dB insertion loss and avoid excessive rise-time degradation. For 50 Ω systems, this corresponds to ≤1.6 ns additional RC delay beyond the device's intrinsic 3.2 ns tpd.

How does the IOFF feature behave when OE is left floating during power-down?

OE must be actively driven HIGH or pulled up to VCC via resistor (per Section 1. General description). If floating, OE state is undefined - potentially enabling unintended switching or failing to isolate channels, leading to back-current through unpowered circuitry. Always tie OE to VCC with ≤10 kΩ pull-up.

Is the 74CBTLV3257PW,118 suitable for audio line-level signal switching?

Yes - its rail-to-rail operation, 5 Ω RON, and <15 pF ON-capacitance support 2 Vpp analog signals up to ~200 kHz with <0.01% THD+N. However, for professional audio (>100 dB SNR), dedicated audio-grade switches (e.g., MAX4617) offer lower charge injection and better crosstalk rejection.