Nexperia USA Inc. CBT3253PW,118

Overview

CBT3253PW,118 from Nexperia is a dual 1-of-4 TTL-compatible FET multiplexer/demultiplexer in TSSOP16 package, featuring 5 Ω ON-resistance, <0.25 ns propagation delay, and ±1 μA input leakage. It enables bidirectional signal routing between two independent A/B port pairs under S0/S1 address control and active-low 1OE/2OE enable, used in high-speed digital bus switching and logic-level translation circuits.

For engineers reviewing the CBT3253PW,118 datasheet, CBT3253PW,118 pinout, CBT3253PW,118 application, or CBT3253PW,118 equivalent, key selection criteria include its 5 Ω switch resistance, 1.2–6.2 ns propagation delay range, overvoltage-tolerant 5.5 V control inputs, -40 °C to +85 °C operating range, and TSSOP16 thermal and board-space advantages over SO16.

Technical Context

The CBT3253PW implements two independent 1-of-4 analog/digital FET switches with separate select (S0, S1) and output-enable (1OE, 2OE) controls. Each switch path connects one A-terminal (1A or 2A) to one of four B-terminals (1B1–1B4 or 2B1–2B4), supporting bidirectional signal flow without level-shifting.

Its TTL-compatible interface accepts 0.8 V VIL and 2.0 V VIH thresholds while tolerating up to 5.5 V on control pins. The device operates from 4.5 V to 5.5 V supply, delivers 18.6 pF on-state capacitance, and maintains <7 Ω RON across temperature with latch-up immunity >100 mA per JESD78 Class II Level A.

Key Specifications

Pinout & Package

TSSOP16 plastic thin shrink small outline package (SOT403-1), 16-pin, 4.4 mm body width, 0.65 mm lead pitch, optimized for high-density PCB layouts and thermal performance in compact systems.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74CBT3253PWR and 74LVC253PW,118, the CBT3253PW,118 uniquely balances 5 V system compatibility, sub-nanosecond timing, and overvoltage-safe control inputs-making it optimal for industrial backplanes and mixed-voltage instrumentation where robustness and speed coexist.

Availability

CBT3253PW,118 is available at Aetrix Electronics and suitable for industrial automation interfaces, test equipment signal routing, and embedded debug multiplexing requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for CBT3253PW,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 high-volume, high-reliability discrete and logic devices, delivering energy-efficient solutions for automotive, industrial, and consumer markets.

The CBT series targets high-speed digital signal routing with FET-based switches, designed specifically for low-distortion, low-latency bus multiplexing in 5 V systems where TTL compatibility and robust ESD performance are mandatory.

FAQ

Can CBT3253PW,118 operate with a 3.3 V supply?

No. The CBT3253PW,118 is specified only for 4.5 V to 5.5 V operation per Table 5. At 3.3 V, the device fails to meet VIH (2.0 V min) and VIL (0.8 V max) thresholds reliably, and RON increases beyond specification. Use the 74LVC253PW,118 for 3.3 V systems.

Is the CBT3253PW,118 pin-compatible with CBT3253D (SO16)?

Yes. Both share identical pin numbering and function mapping per Figures 2 and 3 in the datasheet. The only difference is package: SOT109-1 (SO16) vs. SOT403-1 (TSSOP16). Layout adaptation is required for footprint, but no schematic changes are needed.

What is the maximum capacitive load the CBT3253PW,118 can drive without signal degradation?

The device is characterized with 50 pF load (Table 9) and maintains tpd ≤6.2 ns and tdis ≤7 ns under those conditions. Driving >100 pF may increase propagation delay nonlinearly and reduce edge rate; add series termination or buffer stages for heavier loads.

Does CBT3253PW,118 support hot-swap or live-insertion?

Not explicitly rated for hot-swap. While its overvoltage-tolerant controls (5.5 V) and latch-up immunity (>100 mA) improve robustness, the datasheet does not specify power sequencing or I_INRUSH limits. Implement external current limiting and controlled ramp-up for live-insertion applications.