Nexperia USA Inc. 74CBTLV3253PW,118

Overview

74CBTLV3253PW,118 from Nexperia is a dual 1-of-4 CMOS bus switch multiplexer/demultiplexer in TSSOP16 package, operating from 2.3 V to 3.6 V supply, featuring 5 Ω typical ON-resistance, <0.25 ns propagation delay, and IOFF partial power-down protection for hot-swap applications in high-speed digital interconnects.

For engineers reviewing the 74CBTLV3253PW,118 datasheet, 74CBTLV3253PW,118 pinout, 74CBTLV3253PW,118 application, or 74CBTLV3253PW,118 equivalent, this device serves as a low-latency, rail-to-rail signal path selector in FPGA I/O expansion, memory address routing, and JTAG boundary-scan test access architectures requiring sub-nanosecond timing integrity and robust ESD immunity.

Technical Context

The 74CBTLV3253PW,118 implements two independent 1-of-4 analog/digital bidirectional switches controlled by shared S0/S1 select lines and separate 1OE/2OE enable inputs. Each switch exhibits near-zero propagation delay due to its low-impedance MOSFET-based topology and absence of internal logic gates.

Schmitt-trigger inputs tolerate slow edge rates across the full 2.3–3.6 V VCC range, while the IOFF circuit ensures <±50 μA power-off leakage when VCC = 0 V-enabling safe insertion/removal in live backplanes without signal contention or backdrive damage.

Key Specifications

Pinout & Package

TSSOP16 (SOT403-1) package: plastic thin shrink small outline, 16 leads, 4.4 mm body width, 0.65 mm lead pitch, exposed pad optional (non-electrical).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual 1-of-4 bus switch applications.

Compared with SN74CBTLV3253PWR and 74LVC2G53DP,122, the 74CBTLV3253PW,118 delivers superior signal fidelity (lower RON, tighter capacitance matching), guaranteed hot-swap safety (IOFF), and industry-leading ESD robustness-making it the optimal choice for mission-critical high-speed interconnects where timing integrity and reliability are non-negotiable.

Availability

74CBTLV3253PW,118 is available at Aetrix Electronics and suitable for PCIe lane routing, FPGA I/O expansion, JTAG test access, and industrial sensor multiplexing requiring stable component supply across automotive-grade temperature ranges and long production lifecycles.

Supply support for 74CBTLV3253PW,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 logic, discrete, and MOSFET solutions for automotive, industrial, and consumer markets.

The 74CBTLV3253PW,118 belongs to Nexperia's CBTLV (Configurable Bus Transceiver Low-Voltage) family, engineered specifically for low-latency, low-power signal routing in high-density digital systems where signal integrity and thermal efficiency are critical.

FAQ

What is the maximum allowable load capacitance for maintaining specified propagation delay?

The datasheet specifies dynamic performance with 30 pF (VCC = 2.3–2.7 V) and 50 pF (VCC = 3.0–3.6 V) loads. At 50 pF and VCC = 3.3 V, tpd remains ≤5.5 ns across −40 °C to +125 °C. Exceeding 50 pF increases RC delay nonlinearly; for >75 pF loads, derating curves in Figure 13 must be consulted to confirm timing compliance.

Can 1OE and 2OE be tied together for synchronous enable control?

Yes-1OE and 2OE are electrically independent but share identical logic behavior (active LOW). Tying them together simplifies control logic and ensures simultaneous switching of both 4-channel banks. No additional buffering or current limiting is required, as each input draws <±1 μA at VCC = 3.6 V.

Is the exposed thermal pad on the TSSOP16 package electrically connected?

No-the exposed pad in SOT403-1 (TSSOP16) is a mechanical thermal enhancement feature only, with no electrical connection. Per Nexperia's package drawing, it may remain floating or be soldered to GND for improved thermal dissipation, but must never be connected to VCC or signal nets.

Does the device support DC-coupled analog signals up to VCC?

Yes-the 74CBTLV3253PW,118 is a true analog bus switch with rail-to-rail capability: it passes DC and AC signals from 0 V to VCC without clipping or level shifting. This is confirmed by the "rail to rail switching on data I/O ports" feature and static characterization showing VI and VSW rated from 0 V to VCC.