Nexperia USA Inc. 74LV595DB,118

Overview

74LV595DB,118 from Nexperia is an 8-bit serial-in/parallel-out or serial-out shift register with separate shift and storage registers, 3-state outputs, asynchronous master reset (MR), and dual clocks (SHCP and STCP). It operates from 1.0 V to 3.6 V, supports -40 °C to +125 °C, and enables cascaded LED driver or GPIO expansion in microcontroller systems.

For engineers reviewing the 74LV595DB,118 datasheet, 74LV595DB,118 pinout, 74LV595DB,118 application, or 74LV595DB,118 equivalent, key selection criteria include its dual-clock architecture for independent shift/storage control, 3-state output enable (OE) for bus sharing, low-voltage CMOS compatibility down to 1.0 V, and SO16 package suitability for industrial PCB layouts requiring thermal robustness and signal integrity.

Technical Context

The device implements two synchronous 8-bit registers: a shift register clocked by SHCP (LOW-to-HIGH edge) and a storage register clocked by STCP (LOW-to-HIGH edge), enabling precise staging of serial data before parallel output latching. The MR input asynchronously clears only the shift register, preserving storage register contents until next STCP pulse.

Outputs Q0–Q7 are 3-state controlled by OE (active LOW); Q7S provides cascading capability. Input clamp diodes allow safe interfacing with voltages exceeding VCC when used with current-limiting resistors, supporting mixed-voltage system integration without level shifters.

Key Specifications

Pinout & Package

74LV595DB,118 is supplied in SO16 (SOT109-1) plastic small outline package: 16-pin, 3.9 mm body width, 1.27 mm lead pitch, surface-mount, JEDEC MS-012 compliant. Thermal resistance θJA = 80.6 K/W (SO16), suitable for convection-cooled industrial boards.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LV595AQPWRQ1, the 74LV595DB,118 lacks AEC-Q100 certification but offers identical industrial performance at lower cost; versus 74HC595PW,118, it delivers 4× faster timing, 8× lower static current, and built-in overvoltage tolerance - making it superior for modern ultra-low-power and mixed-voltage embedded systems.

Availability

74LV595DB,118 is available at Aetrix Electronics and suitable for industrial HMI panels, automotive cabin control modules, and IoT sensor gateways requiring stable component supply across extended temperature ranges and multi-year production cycles.

Supply support for 74LV595DB,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 focused on essential efficiency technologies, delivering high-performance logic, analog, and MOSFET solutions for automotive, industrial, and consumer markets.

The 74LV595 belongs to Nexperia's Low-Voltage Logic (LV) product line, engineered for energy-efficient digital interfacing in battery-powered and thermally constrained applications where 1.0–3.6 V operation and minimal ground bounce are critical.

FAQ

Can 74LV595DB,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 16 ns STCP-to-Qn propagation and 8 mA output drive at VCC = 1.2 V (per Table 6). Input thresholds scale with VCC, ensuring correct logic interpretation across the entire range without external biasing.

What is the maximum recommended clock frequency for SHCP and STCP?

At VCC = 3.3 V and CL = 15 pF, the maximum shift clock (SHCP) frequency is 77 MHz and storage clock (STCP) frequency is 70 MHz (Table 7). For robust operation with margin, design to ≤50 MHz with proper PCB layout, decoupling, and termination to avoid setup/hold violations.

How does the MR pin interact with the storage register during reset?

MR asynchronously resets only the 8-bit shift register to zero; the storage register and its parallel outputs (Q0–Q7) remain unchanged until the next STCP rising edge. This allows safe clearing of incoming data without disrupting currently active outputs - critical for glitch-free display or actuator control.

Is SO16 (SOT109-1) package suitable for reflow soldering in high-volume manufacturing?

Yes. The SO16 package is RoHS-compliant and qualified for standard lead-free reflow profiles (J-STD-020), with peak temperature tolerance up to 260 °C. Its 1.27 mm pitch and gull-wing leads ensure high first-pass yield in automated SMT lines, and thermal resistance (θJA = 80.6 K/W) supports operation at full rating in natural convection environments.