Nexperia USA Inc. 74VHC595PW,118

Overview

74VHC595PW,118 from Nexperia is an 8-bit serial-in/parallel-out shift register with storage latch and 3-state outputs in TSSOP16 package. It performs serial-to-parallel data conversion using separate shift (SHCP) and storage (STCP) clocks, supports asynchronous master reset (MR), and operates from -40 °C to +125 °C at VCC = 2.0–5.5 V. Used in LED matrix drivers and microcontroller GPIO expansion.

For engineers reviewing the 74VHC595PW,118 datasheet, 74VHC595PW,118 pinout, 74VHC595PW,118 application, or 74VHC595PW,118 equivalent, this device delivers deterministic timing control for cascaded digital output staging, low-power CMOS logic compatibility, and robust bus isolation via active-low output enable (OE).

Technical Context

The 74VHC595PW,118 integrates two synchronized but independent clock domains: an 8-stage shift register clocked by SHCP (positive-edge triggered) and a storage register clocked by STCP (also positive-edge). Data propagates serially through Q7S for daisy-chaining, then transfers atomically to parallel outputs Q0–Q7 on STCP edge.

Its 3-state outputs are controlled by OE (active LOW), enabling shared bus operation without contention. MR asynchronously clears only the shift register (not storage), preserving latched output states during reset - critical for glitch-free display hold and I/O retention.

Key Specifications

Pinout & Package

TSSOP16 package (SOT403-1): plastic thin shrink small outline, 16 leads, body width 4.4 mm, 0.65 mm pitch, exposed pad optional (non-electrical).

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 74HC595N,652 and SN74LV595AQPWRQ1, the 74VHC595PW,118 uniquely combines TSSOP16 space savings, Schmitt-trigger clock inputs for EMI resilience, and industrial temperature support - making it optimal for compact, noise-immune embedded controllers.

Availability

74VHC595PW,118 is available at Aetrix Electronics and suitable for LED display drivers, microcontroller GPIO expansion, industrial I/O modules, and automotive body control units requiring stable component supply across extended temperature ranges.

Supply support for 74VHC595PW,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 discrete, logic, and MOSFET devices with focus on efficiency, reliability, and miniaturization.

The 74VHC series targets high-speed, low-power CMOS logic applications where pin compatibility with legacy TTL and robust noise immunity are essential - especially in industrial automation and automotive subsystems.

FAQ

Can 74VHC595PW,118 operate reliably at 3.3 V with 5 V-tolerant inputs?

Yes. The 74VHC595PW,118 is fully specified down to VCC = 2.0 V and accepts input voltages up to VCC + 0.5 V. At VCC = 3.3 V, VIH is guaranteed ≥ 2.31 V and VIL ≤ 0.99 V, ensuring interoperability with 3.3 V MCUs and tolerance to 5 V signals on DS, SHCP, STCP, MR, and OE - provided current limits are observed.

What happens to Q0–Q7 outputs during MR assertion?

MR only resets the internal 8-stage shift register; it has no effect on the storage register or Q0–Q7 outputs. Outputs retain their last latched values until STCP triggers a new transfer or OE forces them into high-impedance state - enabling safe initialization without display corruption.

Is cascading multiple 74VHC595PW,118 devices supported in hardware?

Yes. Q7S (pin 9) provides the serial output of the MSB stage and is designed to connect directly to DS (pin 14) of the next device. With common SHCP and STCP lines, up to 16+ bits can be shifted and latched synchronously - verified in Nexperia's functional diagram and timing tests up to 170 MHz.

Does the TSSOP16 package require thermal pad soldering?

No. The SOT403-1 package has no thermal pad; its exposed die-pad (if present) is non-electrical and requires no solder connection. Thermal performance relies on standard PCB copper pour under the package body per JEDEC MO-153 guidelines - no special assembly steps are needed.