Nexperia USA Inc. 74HC595D,118

Overview

74HC595D,118 from Nexperia is an 8-bit serial-in/serial-or-parallel-out shift register with storage latch and 3-state outputs, used for serial-to-parallel data expansion in microcontroller I/O interfaces. It features separate shift (SHCP) and storage (STCP) clocks, asynchronous master reset (MR), and output enable (OE) control. Operates from 2.0 V to 6.0 V at -40 °C to +125 °C, with typical 100 MHz shift-out frequency and 35 ns propagation delay at 6 V.

For engineers reviewing the 74HC595D,118 datasheet, 74HC595D,118 pinout, 74HC595D,118 application, or 74HC595D,118 equivalent, key selection criteria include its dual-clock architecture enabling independent shift/storage timing, 3-state parallel outputs for bus sharing, and CMOS-level input compatibility - critical for low-power embedded control and LED matrix driving where cascading and output isolation are required.

Technical Context

The device implements two synchronized but independent 8-bit registers: a shift register accepting serial data on DS at SHCP rising edges, and a storage register loaded on STCP rising edges. This decoupling allows continuous serial shifting while holding stable parallel outputs - essential for glitch-free display multiplexing or relay bank control.

Its 3-state outputs (enabled by active-low OE) support shared bus operation without external logic, while MR asynchronously clears only the shift register. Input clamp diodes permit safe interfacing with voltages exceeding VCC when current-limiting resistors are used - a design feature confirmed across SO16, TSSOP16, and QFN variants.

Key Specifications

Pinout & Package

74HC595D,118 uses the SO16 (SOT109-1) package: plastic small outline, 16 leads, 3.9 mm body width, surface-mount compatible with standard reflow profiles.

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 74HC595D,118, the 74HCT595D,118 trades wider supply flexibility for stricter 5 V operation and TTL input compatibility, while the SN74HC595PWR offers identical functionality in a thermally enhanced package - choice depends on voltage ecosystem, layout constraints, and qualification requirements.

Availability

74HC595D,118 is available at Aetrix Electronics and suitable for LED display systems, industrial I/O expansion, sensor aggregation, and bus interface circuits requiring stable component supply across automotive, factory automation, and embedded consumer applications.

Supply support for 74HC595D,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 logic, analog, and MOSFET solutions with focus on reliability, efficiency, and sustainability - serving automotive, industrial, and mobile markets.

The 74HC595 belongs to Nexperia's standard logic portfolio designed for robust, cost-effective digital interfacing in resource-constrained embedded systems - emphasizing wide voltage operation, high noise immunity, and extended temperature capability.

FAQ

Can 74HC595D,118 operate reliably at 3.3 V?

Yes. The 74HC595D,118 is fully specified from 2.0 V to 6.0 V, with guaranteed VIH = 1.2 V (min) and VIL = 0.5 V (max) at VCC = 3.3 V. Propagation delay remains ≤48 ns, and output drive sustains ±24 mA per pin - making it ideal for 3.3 V microcontrollers like ESP32 or RP2040 without level shifters.

What is the maximum number of 74HC595D,118 devices that can be cascaded?

There is no hard limit - cascading is enabled by Q7S-to-DS connection between devices. Practical limits arise from cumulative propagation delay (e.g., 10 devices add ~150 ns worst-case delay at 6 V) and signal integrity on long daisy-chain traces. For >5-stage chains, add series termination resistors (22–47 Ω) at each DS input.

Does OE affect the internal register states during high-impedance mode?

No. As explicitly stated in the datasheet, operation of OE does not affect the state of either the shift or storage registers. Outputs go high-impedance while Q0–Q7 retain their last latched values - allowing safe bus sharing without data loss or need for re-latching after OE deassertion.

Is the SO16 package RoHS-compliant and lead-free?

Yes. The 74HC595D,118 in SOT109-1 (SO16) package is manufactured per RoHS Directive 2011/65/EU and is lead-free, with matte tin (Sn) termination. Its MSL rating is Level 3 (floor life 168 hours at 30 °C/60% RH), and it complies with JEDEC J-STD-020D moisture sensitivity requirements.