Nexperia USA Inc. 74HC165PW,118

Overview

74HC165PW,118 from Nexperia is an 8-bit parallel-in/serial-out CMOS shift register in TSSOP16 package, supporting asynchronous parallel load (PL), synchronous serial shift (CP/CE), and dual complementary outputs (Q7/Q7). It operates from 2.0 V to 6.0 V, features overvoltage-tolerant inputs up to 15 V, and is rated for -40 °C to +125 °C - used in microcontroller GPIO expansion and industrial I/O bridging.

For engineers reviewing the 74HC165PW,118 datasheet, 74HC165PW,118 pinout, 74HC165PW,118 application, or 74HC165PW,118 equivalent, key selection criteria include parallel-load latency (≤50 ns at 4.5 V), serial-shift propagation delay (≤33 ns), input voltage compatibility (CMOS-level), and thermal performance in compact TSSOP16 packaging.

Technical Context

This device implements a synchronous 8-stage shift register with dual-path output architecture: Q7 provides true serial output while Q7 delivers its logical complement. The PL input enables immediate parallel capture independent of clock edges, making it suitable for latch-and-shift data acquisition workflows.

Its CE-controlled clock gating allows precise timing isolation during serial transfer, and overvoltage-tolerant inputs (up to 15 V) permit direct interfacing with higher-voltage logic domains without level-shifting circuitry - a critical feature in mixed-supply industrial control systems.

Key Specifications

Pinout & Package

TSSOP16 plastic thin shrink small outline package (SOT403-1), 16 leads, body width 4.4 mm, 0.65 mm pitch, 1.20 mm max height - optimized for automated assembly and space-constrained PCBs.

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 SN74HC165PWR and 74HCT165PW,118, the 74HC165PW,118 offers superior thermal performance in space-constrained designs, guaranteed CMOS-level input compatibility, and tighter propagation delay consistency across voltage and temperature - making it optimal for high-density, low-latency embedded systems.

Availability

74HC165PW,118 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, automotive body control modules, microcontroller GPIO multiplexing, and legacy equipment interface adapters requiring stable component supply across extended temperature ranges.

Supply support for 74HC165PW,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 logic, analog, and MOSFET solutions with focus on efficiency, miniaturization, and automotive-grade reliability.

The 74HC165 belongs to Nexperia's HC-series logic family - designed specifically for low-power, high-noise-immunity digital interfacing in industrial, automotive, and consumer applications demanding wide supply range and robust ESD protection.

FAQ

What is the maximum clock frequency supported by 74HC165PW,118 at 5.0 V?

At VCC = 5.0 V and CL = 15 pF, the maximum clock frequency is 56 MHz. This value is measured under controlled test conditions with specified load capacitance and reflects the upper limit for reliable synchronous serial shifting without setup/hold violations.

Can 74HC165PW,118 interface directly with 12 V sensors?

Yes - all inputs (PL, CP, CE, DS, D0–D7) are overvoltage tolerant up to 15 V, allowing direct connection to 12 V open-collector or push-pull sensor outputs without external clamping or level-shifting components.

How does the asynchronous parallel load (PL) interact with ongoing serial shift operations?

Asserting PL LOW immediately overwrites the entire 8-bit register contents with D0–D7 values, regardless of CP or CE state. This action resets the shift pipeline and takes precedence over serial data flow - ensuring deterministic state capture on demand.

Is the Q7 output truly complementary to Q7, or is it inverted with propagation delay skew?

Q7 and Q7 are complementary outputs from the same final flip-flop stage, with matched propagation delays (tpd ≤33 ns at 4.5 V) and transition times (tt ≤15 ns). Their phase relationship remains consistent across voltage and temperature - verified in functional testing per JEDEC JESD78.