Nexperia USA Inc. 74HC4094PW,118

Overview

74HC4094PW,118 from Nexperia is an 8-bit serial-in/parallel-out shift-and-store bus register with separate shift and storage clocks, 3-state outputs, and dual serial outputs (QS1/QS2) for daisy-chaining. It operates from 2.0 V to 6.0 V, supports -40 °C to +125 °C ambient range, and delivers 39 ns typical propagation delay (CP to QPn at VCC = 4.5 V). It is used in LED matrix drivers and remote control holding registers where cascaded data distribution and output latching are required.

For engineers reviewing the 74HC4094PW,118 datasheet, 74HC4094PW,118 pinout, 74HC4094PW,118 application, or 74HC4094PW,118 equivalent, key selection criteria include its dual-edge-cascadable serial outputs (QS1 on CP↑, QS2 on CP↓), independent strobe-controlled storage register transfer, 3-state output enable timing (16–45 ns enable/disable), and TSSOP16 package compatibility with high-density PCB layouts.

Technical Context

The device implements two synchronized but independent 8-bit shift registers: a serial-shift register clocked on CP rising edges, and a parallel-storage register loaded on STR high. Data propagates through the shift register with 18–45 ns per stage (VCC = 4.5–6.0 V), then transfers atomically to the storage register upon STR assertion.

Output control is decoupled from register operation: OE enables/disables all eight QPn outputs without affecting internal state, while QS1 and QS2 provide phase-separated serial feedback-QS1 mirrors the 7th-stage output on CP↑, QS2 mirrors it on the subsequent CP↓-enabling robust inter-device synchronization across varying clock edge rates.

Key Specifications

Pinout & Package

TSSOP16 plastic thin shrink small outline package (SOT403-1); 16 leads; body width 4.4 mm; 0.65 mm pitch; exposed pad not present; RoHS compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 74HCT4094PW,118, the 74HC4094PW,118 provides broader supply voltage tolerance and lower ICC, while SN74HC595PWR sacrifices cascade timing flexibility for higher production volume and lower unit cost in non-critical timing applications.

Availability

74HC4094PW,118 is available at Aetrix Electronics and suitable for LED matrix drivers, remote control holding registers, and industrial I/O expanders requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74HC4094PW,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 efficiency, reliability, and sustainability.

This device belongs to Nexperia's 74HC logic family - engineered for low-power, wide-VCC operation in industrial, automotive, and consumer applications demanding robust timing and cascading capability.

FAQ

Can 74HC4094PW,118 operate reliably at 3.3 V?

Yes. The 74HC4094PW,118 is fully specified from 2.0 V to 6.0 V. At VCC = 3.3 V, VIH = 2.31 V (70% of VCC), VIL = 0.99 V (30% of VCC), and typical propagation delay is ~26 ns (CP to QPn), meeting standard 3.3 V CMOS interface requirements without level shifting.

What is the functional difference between QS1 and QS2?

QS1 outputs the Q6S signal (data from shift register stage 6) on the same CP rising edge that shifts data into stage 7. QS2 outputs the identical Q6S signal on the subsequent CP falling edge - enabling timing margin adjustment for cascaded devices depending on clock slew rate and PCB trace length.

Does OE affect internal register states during operation?

No. The OE input controls only the output drivers' impedance state. Internal shift and storage registers continue operating normally regardless of OE level - data shifting, strobing, and storage occur independently, ensuring deterministic behavior during output disable cycles.

Is the TSSOP16 package (SOT403-1) pin-compatible with SO16 or SSOP16 variants?

No. While all three packages have 16 pins and identical logic functionality, pin numbering and physical dimensions differ: TSSOP16 (SOT403-1) has 0.65 mm pitch and 4.4 mm body width; SO16 (SOT109-1) uses 1.27 mm pitch and 3.9 mm width; SSOP16 (SOT338-1) uses 0.65 mm pitch but 5.3 mm width - requiring distinct PCB footprints.