Nexperia USA Inc. 74LV595PW,112

Overview

74LV595PW,112 from Nexperia is an 8-bit serial-in/parallel-out or serial-out shift register with separate shift and storage clocks, 3-state parallel outputs, asynchronous master reset (MR), and serial output (Q7S) for cascading. It operates from 1.0 V to 3.6 V, supports -40 °C to +125 °C, and delivers bus-driver output capability (8 mA) for LED matrix control and I/O expansion in microcontroller systems.

For engineers reviewing the 74LV595PW,112 datasheet, 74LV595PW,112 pinout, 74LV595PW,112 application, or 74LV595PW,112 equivalent, key selection criteria include its dual-clock architecture (SHCP/STCP), 3-state output enable (OE) timing (14–39 ns enable/disable), propagation delay down to 15 ns at 3.3 V, and TSSOP16 package compatibility with high-density PCB layouts.

Technical Context

The device implements two synchronized but independent 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 separation of data loading and output latching. Its asynchronous MR input resets only the shift register without affecting stored data.

Output behavior is strictly controlled by OE: LOW enables all eight parallel outputs (Q0–Q7) and Q7S; HIGH forces all parallel outputs into high-impedance state while preserving internal register contents. Inputs include clamp diodes, allowing safe interfacing to voltages exceeding VCC when used with current-limiting resistors.

Key Specifications

Pinout & Package

TSSOP16 plastic thin shrink small outline package (SOT403-1), 16-pin, body width 4.4 mm, lead pitch 0.65 mm, designed for high-density surface-mount assembly and thermal performance up to 125 °C ambient.

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 74LV595PW,112 lacks AEC-Q100 certification but matches its electrical specs and timing at lower cost; versus 74HC595PW,118, it enables true low-voltage operation and faster throughput, making it superior for modern energy-efficient embedded designs.

Availability

74LV595PW,112 is available at Aetrix Electronics and suitable for LED display drivers, microcontroller I/O expansion, industrial sensor aggregation, and remote control holding registers requiring stable component supply across industrial temperature ranges.

Supply support for 74LV595PW,112 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) family, engineered for interoperability across 1.0–3.6 V supply domains and optimized for low-power, high-noise-immunity digital interfacing in space- and energy-constrained systems.

FAQ

Can 74LV595PW,112 operate reliably at 1.2 V supply?

Yes. The device is fully specified from 1.0 V to 3.6 V, with guaranteed functionality at 1.2 V across -40 °C to +125 °C. At this voltage, propagation delay increases to 95 ns (typical), and output drive reduces to ~1.5 mA, but all logic functions-including MR reset, SHCP/STCP edge detection, and OE-controlled 3-state-remain functional per datasheet Table 5 and Table 7.

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

At VCC = 3.3 V, the minimum pulse width for both SHCP and STCP is 20 ns (Table 7, tW). This ensures reliable register clocking without metastability. Pulse widths below this threshold risk incomplete state transitions or skipped clock edges, especially under worst-case process/voltage/temperature corners.

Does OE affect the Q7S serial output?

No. The Q7S output is driven directly from the shift register's stage-7 flip-flop and remains active regardless of OE state. Only the parallel outputs Q0–Q7 enter high-impedance when OE is HIGH. This allows uninterrupted daisy-chaining even while disabling local parallel outputs for bus sharing.

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

MR asynchronously clears only the shift register (stages 0–7); the storage register and its parallel outputs (Q0–Q7) retain their last latched values. This decoupling enables safe reset of incoming serial data flow without disrupting currently displayed or latched outputs - essential for glitch-free operation in display and control applications.