Nexperia USA Inc. 74HC595PW-Q100,118

Overview

74HC595PW-Q100 from Nexperia is an AEC-Q100 Grade 1 qualified 8-bit serial-in, serial-or-parallel-out shift register with separate shift and storage registers, 3-state outputs, asynchronous master reset (MR), and TTL-compatible input levels (74HCT variant). It operates from -40 °C to +125 °C, supports up to 100 MHz typical shift-out frequency, and is used in automotive body control modules for LED matrix driving and multiplexed I/O expansion.

For engineers reviewing the 74HC595PW-Q100 datasheet, 74HC595PW-Q100 pinout, 74HC595PW-Q100 application, or 74HC595PW-Q100 equivalent, key selection criteria include its dual-clock architecture (SHCP/STCP), OE-controlled 3-state output enable, MR-driven synchronous clear, and TSSOP16 package suitability for high-density automotive PCBs.

Technical Context

The device implements two independent 8-bit registers: a shift register clocked by SHCP (LOW-to-HIGH) for serial data ingestion, and a storage register clocked by STCP (LOW-to-HIGH) for latching parallel outputs. Data cascades via Q7S, enabling daisy-chained configurations without external logic.

Output states are controlled solely by OE (active LOW), which places all eight Qn pins in high-impedance mode without affecting internal register contents. MR asynchronously clears only the shift register, preserving storage register data until next STCP edge.

Key Specifications

Pinout & Package

TSSOP16 plastic thin shrink small outline package (SOT403-1), 16 leads, body width 4.4 mm, lead pitch 0.65 mm, side-wettable flanks for AOI-compatible solder joint inspection.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 8-bit shift register applications.

Compared with SN74HC595QPWRQ1, the 74HC595PW-Q100 offers higher speed and tighter timing margins; versus 74HCT595PW-Q100, it provides superior noise rejection in CMOS-dominated 3.3 V domains but requires stricter input voltage compliance.

Availability

74HC595PW-Q100 is available at Aetrix Electronics and suitable for automotive lighting control, body electronics I/O expansion, instrument cluster display driving, and ADAS sensor interface applications requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74HC595PW-Q100 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 components for automotive, industrial, and consumer markets, with leadership in logic, power MOSFETs, and ESD protection.

This device belongs to Nexperia's automotive-qualified logic portfolio, engineered specifically for robust serial-to-parallel data conversion in harsh environments where AEC-Q100 compliance and thermal resilience are mandatory.

FAQ

Can 74HC595PW-Q100 operate at 3.3 V supply?

Yes. The 74HC595PW-Q100 is fully specified from 2.0 V to 6.0 V, including 3.3 V nominal operation. At VCC = 3.3 V, VIH is guaranteed ≥2.1 V and VOL ≤0.33 V with 6 mA load, meeting standard 3.3 V LVTTL logic thresholds. Propagation delay increases to ~25 ns (typ), remaining suitable for most microcontroller-driven applications.

What happens to Qn outputs during MR assertion?

Asserting MR (LOW) clears only the shift register stages; the storage register and thus Qn outputs remain unchanged until the next STCP rising edge. This allows safe reset of incoming serial data without flicker or glitch on active outputs - critical for maintaining LED illumination or relay states during reconfiguration.

Is cascading multiple 74HC595PW-Q100 devices supported?

Yes. Q7S (pin 9) provides the serial output of the final shift register stage and is designed explicitly for daisy-chaining: connect Q7S of device N to DS of device N+1. All clocks (SHCP, STCP) and control lines (MR, OE) may be shared across the chain, enabling scalable 16-, 24-, or N×8-bit output expansion with single MCU SPI interface.

Does OE affect internal register states?

No. OE (pin 13) controls only the output drivers' high-impedance state and has no effect on the shift register, storage register, or any internal logic state. Registers continue shifting and latching normally regardless of OE level - enabling seamless output muting during bus arbitration or fault recovery without data loss.