Nexperia USA Inc. 74LV165PW,118

Overview

74LV165PW,118 from Nexperia is an 8-bit parallel-in/serial-out shift register with asynchronous parallel load (PL), dual complementary serial outputs (Q7 and Q7), and clock enable (CE) control. It operates from 1.0 V to 5.5 V, supports -40 °C to +125 °C ambient range, and delivers 75 MHz max clock frequency at 5 V - used in industrial I/O expansion, LED matrix controllers, and microcontroller GPIO extender circuits.

For engineers reviewing the 74LV165PW,118 datasheet, 74LV165PW,118 pinout, 74LV165PW,118 application, or 74LV165PW,118 equivalent, key selection considerations include its dual-output capability for differential signal routing, low-voltage operation down to 1.0 V, asynchronous parallel load timing (14 ns min PL-to-Q7 delay at 2.0 V), and TSSOP16 package compatibility with high-density PCB layouts.

Technical Context

The device implements a synchronous 8-stage shift register with independent parallel-load path: when PL is LOW, D0–D7 load directly into flip-flops without clock dependency; when PL is HIGH, data shifts serially on CP rising edges only if CE is LOW. Its dual outputs (Q7 and Q7) provide true and inverted latched data from the final stage, enabling direct connection to differential receivers or logic-level inversion without external gates.

Input clamp diodes allow safe interfacing to voltages exceeding VCC when current-limiting resistors are used. The architecture supports cascading via Q7→DS connections and includes hold mode (CE HIGH) to freeze register state during clock activity - critical for glitch-free bus arbitration in multi-device serial chains.

Key Specifications

Pinout & Package

TSSOP16 plastic thin shrink small outline package (SOT403-1); 16 leads; body width 4.4 mm; 0.65 mm pitch; lead finish matte tin.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 8-bit parallel-in/serial-out shift register applications.

Compared with SN74LV165APWR and 74HC165PW,118, the 74LV165PW,118 uniquely supports 1.0 V operation and +125 °C ambient - making it the sole option for energy-constrained, thermally harsh environments requiring full 8-bit parallel capture and high-speed serial output.

Availability

74LV165PW,118 is available at Aetrix Electronics and suitable for industrial I/O expansion, LED matrix controllers, microcontroller GPIO extenders, and industrial encoder interfaces requiring stable component supply across extended temperature and voltage ranges.

Supply support for 74LV165PW,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 headquartered in Nijmegen, Netherlands, specializing in high-performance, energy-efficient logic, discrete, and power MOSFET solutions for industrial, automotive, and consumer markets.

The 74LV logic family targets low-voltage, high-speed digital interfacing - designed specifically for mixed-supply systems requiring interoperability between 1.2 V, 1.8 V, 2.5 V, 3.3 V, and 5 V domains while maintaining robust noise immunity and thermal stability.

FAQ

What is the minimum supply voltage for reliable operation of the 74LV165PW,118?

The 74LV165PW,118 is fully specified down to 1.0 V supply voltage, with guaranteed functionality across the entire -40 °C to +125 °C temperature range. At 1.0 V, propagation delays increase (e.g., 115 ns CP→Q7), but logic thresholds and DC parameters remain valid per Table 6 and Table 7 of the datasheet Rev. 10.

Can the 74LV165PW,118 be used in cascaded configurations for more than 8 bits?

Yes - the Q7 output connects directly to the DS input of a downstream 74LV165PW,118 to form longer shift registers. When cascading, ensure CE is tied LOW on all devices and PL is asserted synchronously; total propagation delay accumulates linearly (e.g., two devices yield ~44 ns CP→final Q7 at 3.3 V).

Does the 74LV165PW,118 support hot insertion or live swapping in powered systems?

No - the device lacks hot-swap protection circuitry. Applying VCC before GND, or connecting inputs while VCC is absent, may forward-bias internal clamp diodes and cause latch-up. Always follow proper power sequencing: GND first, then VCC, then inputs - and use series resistors on all inputs if live insertion is required.

How does the clock enable (CE) pin interact with the parallel load (PL) function?

CE and PL operate independently: CE controls serial shifting (only active when PL = HIGH), while PL forces immediate parallel load regardless of CE or CP state. When PL is LOW, CE has no effect - data is loaded asynchronously and CE cannot inhibit that action. This separation enables deterministic capture followed by controlled serial transmission.