Nexperia USA Inc. 74HC595DB,118

Overview

74HC595DB,118 from Nexperia is an 8-bit serial-in/serial-or-parallel-out shift register with independent shift and storage registers, 3-state outputs, asynchronous master reset (MR), and dual clocks (SHCP, STCP). It operates from 2.0 V to 6.0 V, supports 100 MHz typical shift-out frequency, and functions in industrial temperature range (−40 °C to +125 °C) in SO16 package. Used for LED matrix driving and microcontroller GPIO expansion.

For engineers reviewing the 74HC595DB,118 datasheet, 74HC595DB,118 pinout, 74HC595DB,118 application, or 74HC595DB,118 equivalent, this device enables cascaded serial-to-parallel conversion with latch-controlled output staging, precise timing control via separate clock domains, and robust 3-state bus management - critical for embedded I/O expansion and display driver designs.

Technical Context

The 74HC595DB,118 implements a two-stage pipeline: an 8-bit shift register accepting serial data on DS at SHCP rising edges, and an independent 8-bit storage register loaded on STCP rising edges. This separation allows continuous shifting while holding stable parallel outputs - essential for glitch-free display updates.

Its 3-state outputs (Q0–Q7) are controlled solely by OE (active LOW); MR asynchronously clears only the shift register without affecting stored data or output state. Input clamp diodes permit safe interfacing with voltages exceeding VCC when used with current-limiting resistors.

Key Specifications

Pinout & Package

74HC595DB,118 uses the SO16 (SOT109-1) plastic small outline package: 16-pin, 3.9 mm body width, gull-wing leads, JEDEC MS-012 compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 74HCT595DB,118, the Nexperia HC version offers higher speed and wider VCC range but requires CMOS-level inputs; versus SN74HC595PWR, it provides identical functionality in a more thermally robust SO16 package with proven industrial reliability.

Availability

74HC595DB,118 is available at Aetrix Electronics and suitable for LED display driver modules, microcontroller GPIO expansion boards, and industrial I/O subsystems requiring stable component supply across extended temperature ranges.

Supply support for 74HC595DB,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 components for automotive, industrial, and consumer applications, with leadership in logic, power, and analog solutions.

The 74HC595 belongs to Nexperia's standard logic portfolio designed for robust, low-power digital interfacing in harsh environments - emphasizing wide VCC range, high noise immunity, and extended temperature qualification.

FAQ

What is the difference between SHCP and STCP in the 74HC595DB,118?

SHCP (shift clock) controls data entry into the 8-bit shift register on each rising edge, while STCP (storage clock) transfers the entire shift register content to the 8-bit storage register and parallel outputs on its rising edge. This separation enables continuous serial loading without disrupting stable parallel outputs - critical for flicker-free display updates.

Can the 74HC595DB,118 drive LEDs directly?

Yes - each Q0–Q7 output delivers ±35 mA at VCC = 4.5 V, sufficient to sink typical 20 mA LEDs with appropriate current-limiting resistors. The 3-state OE pin allows dynamic blanking, and the −40 °C to +125 °C rating supports under-hood or industrial LED applications without derating.

Is the MR (master reset) pin synchronous or asynchronous?

MR is asynchronous and active LOW: asserting MR immediately clears only the shift register to zero, regardless of SHCP or STCP state. The storage register, parallel outputs, and OE-controlled output impedance remain unaffected - enabling safe reset during live operation without output glitches.

Does the 74HC595DB,118 support daisy-chaining?

Yes - Q7S (serial output) connects directly to DS (serial input) of the next device. With shared SHCP and STCP lines, multiple 74HC595DB,118 units form a seamless shift chain; one STCP pulse latches all stages simultaneously, ensuring synchronized parallel output updates across the chain.