Nexperia USA Inc. 74LV165APW,118

Overview

74LV165APW,118 from Nexperia is an 8-bit parallel-in/serial-out CMOS shift register with complementary serial outputs (Q7 and Q7), asynchronous parallel load (PL active LOW), synchronous serial shift on CP rising edge, gate-OR clock input supporting CE as active-LOW clock enable, and Schmitt-trigger inputs for noise immunity. It operates from 2.0 V to 5.5 V and supports -40 °C to +85 °C ambient range - used in industrial I/O expansion, LED matrix controllers, and data serialization interfaces.

For engineers reviewing the 74LV165APW,118 datasheet, 74LV165APW,118 pinout, 74LV165APW,118 application, or 74LV165APW,118 equivalent, key selection considerations include its dual-mode operation (parallel load vs. serial shift), 5.5 V tolerant I/O, IOFF power-down protection, propagation delay down to 5.5 ns at 5 V, and TSSOP16 package compatibility with high-density PCB layouts.

Technical Context

The device implements an 8-stage static shift register with independent parallel-load and serial-shift paths controlled by PL and CP/CE logic. Its gate-OR clock structure allows flexible assignment of CP and CE pins, provided CE transitions occur only while CP is HIGH to avoid metastability.

Schmitt-trigger inputs ensure robust timing with slow-rising signals, while the IOFF circuit disables outputs during power-down to prevent back-current - critical for hot-swap and partial-power-down systems. The complementary Q7/Q7 outputs support differential signaling or level inversion without external inverters.

Key Specifications

Pinout & Package

TSSOP16 plastic thin shrink small outline package (SOT403-1), 16-pin, 4.4 mm body width, 0.65 mm pitch - optimized for automated assembly and thermal performance in space-constrained designs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LV165AQPWRQ1, the 74LV165APW,118 trades automotive qualification for lower cost and broader distribution, while versus 74HC165PW,118 it delivers faster timing, safer power-down behavior, and guaranteed 5.5 V I/O tolerance - making it optimal for industrial and mixed-voltage embedded systems.

Availability

74LV165APW,118 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, LED matrix row driving, and microcontroller GPIO extension requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for 74LV165APW,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 delivering high-performance, reliable, and energy-efficient components for automotive, industrial, computing, and consumer applications.

The 74LV165A belongs to Nexperia's LV logic family - designed specifically for low-voltage, high-noise-immunity digital interfacing in industrial and embedded systems where power efficiency and robust operation across voltage domains are critical.

FAQ

Can the 74LV165APW,118 operate reliably at 2.0 V supply?

Yes. The device is fully specified from 2.0 V to 5.5 V per Table 5. At 2.0 V, VIH is guaranteed ≥1.5 V and VOL ≤0.5 V with 2.0 mA load, enabling interoperability with 2.5 V logic families. Propagation delay increases to 22 ns max but remains functional for moderate-speed applications like sensor polling or LED scanning.

What happens to outputs during power-down (VCC = 0 V)?

The IOFF circuitry actively disables all outputs when VCC = 0 V, limiting output leakage to ±5 μA (Table 9). This prevents damaging back-current from externally powered signal lines - a critical feature for hot-swap subsystems or multi-rail boards where sections may be powered independently.

Is pin 15 (CE) interchangeable with pin 2 (CP) in layout?

Yes. The datasheet explicitly states the CP and CE pins have arbitrary assignment due to internal gate-OR logic. Layout may swap them for routing convenience, but CE must transition only while CP is HIGH to ensure predictable operation - verified in the function table and timing diagrams.

Does the 74LV165APW,118 support daisy-chaining for wider data widths?

Yes. Q7 drives the DS input of the next stage, enabling seamless 16-, 24-, or N×8-bit serial chains. The complementary Q7 output allows polarity inversion between stages if needed. Propagation delay adds linearly (e.g., two stages: ≤11 ns at 5 V), preserving timing integrity in cascaded configurations.