Nexperia USA Inc. 74HC595D-Q100,118

Overview

74HC595D-Q100 from Nexperia is an AEC-Q100 Grade 1 qualified 8-bit serial-in/serial-or-parallel-out shift register with independent shift and storage registers, 3-state outputs, asynchronous master reset (MR), and TTL-compatible input thresholds (74HCT variant). It operates from -40 °C to +125 °C, supports up to 100 MHz typical shift-out frequency, and is used in automotive LED matrix drivers and remote I/O expansion where cascaded data latching is required.

For engineers reviewing the 74HC595D-Q100 datasheet, 74HC595D-Q100 pinout, 74HC595D-Q100 application, or 74HC595D-Q100 equivalent, this device delivers deterministic serial-to-parallel conversion with separate clock domains for shifting and latching, precise timing control via SHCP/STCP edge-triggering, and automotive-grade reliability in SO16 packaging.

Technical Context

The device implements two synchronous 8-bit registers: a shift register accepting serial data on DS at each SHCP rising edge, and a storage register loaded on STCP rising edge. MR asynchronously clears only the shift register, leaving stored output states intact until next STCP pulse.

Output enable (OE) controls all eight Qn pins simultaneously in high-impedance state without affecting internal register contents. Q7S provides cascading capability by exposing the final shift stage output, enabling daisy-chained configurations without external logic.

Key Specifications

Pinout & Package

74HC595D-Q100 uses the SO16 plastic small outline package (SOT109-1), 16-pin, 3.9 mm body width, with gull-wing leads suitable for reflow and wave soldering. Pin 1 index located at top-left corner with notch marking.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74HC595QPWRQ1, the 74HC595D-Q100 offers tighter propagation delay and lower dynamic power; versus 74HCT595D-Q100, it provides superior noise immunity in mixed-voltage 3.3 V systems due to higher VIH threshold.

Availability

74HC595D-Q100 is available at Aetrix Electronics and suitable for automotive dashboard systems, LED lighting modules, and power distribution monitoring requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74HC595D-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 applications, with leadership in logic, MOSFETs, and ESD protection.

This device belongs to Nexperia's automotive-qualified HC/HCT logic family, designed specifically for robust serial data expansion in harsh environments where functional safety and long-term supply stability are critical.

FAQ

Can 74HC595D-Q100 be operated at 3.3 V supply?

Yes. The 74HC595D-Q100 supports VCC from 2.0 V to 6.0 V, with guaranteed operation at 3.3 V. At this voltage, VIH is 2.1 V (min), VIL is 1.35 V (max), and output drive remains ±24 mA per Qn pin - fully compatible with 3.3 V microcontrollers and peripherals without level shifting.

What happens to Qn outputs during MR assertion?

Asserting MR (LOW) clears only the shift register; the storage register and Qn outputs remain unchanged until the next STCP rising edge. This allows safe initialization of incoming data without disrupting currently displayed or driven outputs - essential for flicker-free automotive UI updates.

Is Q7S output buffered or direct from internal node?

Q7S is the direct output of the eighth shift register stage (FF7 Q), not buffered through the storage register. It reflects the most recent shifted bit immediately after SHCP rising edge, enabling zero-latency cascading to downstream devices' DS inputs without latching delay.

How does OE interact with MR and STCP timing?

OE operates independently: asserting OE HIGH places Qn outputs in high-impedance state regardless of MR or STCP state. Internal registers continue functioning normally - data shifts on SHCP, transfers on STCP, and resets on MR - ensuring output control does not interfere with data pipeline integrity.