Nexperia USA Inc. 74LV595D,118

Overview

74LV595D,118 from Nexperia is an 8-bit serial-in/parallel-out or serial-out shift register with independent shift and storage registers, 3-state parallel outputs, asynchronous master reset (MR), and dual clock inputs (SHCP and STCP). It operates from 1.0 V to 3.6 V, supports -40 °C to +125 °C ambient range, and is used in LED matrix drivers, GPIO expansion for microcontrollers, and serial-to-parallel data conversion in industrial control panels.

For engineers reviewing the 74LV595D,118 datasheet, 74LV595D,118 pinout, 74LV595D,118 application, or 74LV595D,118 equivalent, this device delivers deterministic timing (t_pd ≤ 19 ns at V_CC = 3.3 V), bus-driver output capability (8 mA sink/source), and cascading support via Q7S serial output - critical for multi-stage display or I/O extension designs.

Technical Context

The 74LV595D implements a two-stage pipeline: an 8-bit shift register accepting serial data on DS with rising-edge-triggered SHCP, and a separate 8-bit storage register loaded on rising-edge STCP. MR asynchronously clears only the shift register, leaving stored data intact until next STCP pulse.

Its 3-state parallel outputs (Q0–Q7) are enabled by active-low OE, decoupling output state from register contents; Q7S provides cascaded serial output without requiring external latching. Input clamp diodes allow safe interfacing to voltages exceeding V_CC when used with current-limiting resistors.

Key Specifications

Pinout & Package

74LV595D,118 is housed in a 16-pin SO16 (SOT109-1) plastic small outline package, 3.9 mm body width, with gull-wing leads and standard JEDEC MS-012 footprint.

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 SN74LV595AQPWRQ1, the 74LV595D,118 lacks automotive qualification but offers identical electrical performance at lower cost; versus 74HC595N,652, it delivers faster timing, wider voltage flexibility, and superior input ruggedness - making it optimal for modern low-voltage industrial and IoT edge nodes.

Availability

74LV595D,118 is available at Aetrix Electronics and suitable for LED display drivers, microcontroller GPIO expansion, and industrial serial data buffering requiring stable component supply across extended temperature ranges.

Supply support for 74LV595D,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 solutions optimized for efficiency-critical applications.

The 74LV595 belongs to Nexperia's LV logic family, designed specifically for low-voltage, low-power, and high-noise-immunity operation in industrial automation, consumer electronics, and automotive subsystems.

FAQ

Can 74LV595D,118 operate reliably at 1.2 V supply?

Yes. The device is fully specified from 1.0 V to 3.6 V, with guaranteed functionality including VIH/VIL thresholds, t_pd, and output drive at 1.2 V. At this voltage, maximum operating frequency drops to ~10 MHz, and VOL rises to 0.3 V (IO = 100 μA), which remains compatible with downstream 1.2 V logic families.

What is the minimum pulse width required on SHCP and STCP inputs?

At V_CC = 3.3 V, the minimum pulse width (t_W) for both SHCP and STCP is 20 ns. This value scales inversely with supply voltage: 34 ns at 2.0 V, 25 ns at 2.7 V. Pulse widths below these limits may cause metastability or skipped clock edges.

How does the MR pin interact with the storage register during normal operation?

MR only resets the shift register - it has no effect on the storage register or parallel outputs. Data latched in Q0–Q7 remains unchanged until the next STCP rising edge, allowing safe clearing of incoming serial data without disrupting active outputs.

Is Q7S output synchronized to SHCP or STCP?

Q7S is strictly synchronized to SHCP: each rising edge shifts the entire register left, and the previous Q6 value appears at Q7S on the same edge. It is independent of STCP and OE - enabling real-time observation of shift register contents during cascading.