Nexperia USA Inc. 74HC164PW,118

Overview

74HC164PW,118 from Nexperia is an 8-bit serial-in/parallel-out CMOS shift register with dual gated data inputs (DSA and DSB), asynchronous master reset (MR), and edge-triggered clock (CP) operating from 2.0 V to 6.0 V. It delivers eight buffered parallel outputs (Q0–Q7), supports -40 °C to +125 °C operation, and is used in LED matrix drivers, I/O expansion for microcontrollers, and serial-to-parallel data conversion in industrial control panels.

For engineers reviewing the 74HC164PW,118 datasheet, 74HC164PW,118 pinout, 74HC164PW,118 application, or 74HC164PW,118 equivalent, this device is selected for low-power, TTL-compatible serial interface extension where deterministic timing, noise immunity, and wide supply voltage tolerance are required - especially in space-constrained PCBs using TSSOP14 packaging.

Technical Context

The 74HC164PW,118 implements a synchronous 8-stage D-type flip-flop chain with gated serial input logic: either DSA or DSB can serve as active-HIGH enable for the other, enabling flexible data gating. Data shifts on LOW-to-HIGH CP transitions, and MR asynchronously clears all outputs to LOW independent of clock or data state.

Its input clamp diodes allow safe interfacing to voltages exceeding VCC when used with current-limiting resistors. The device complies with JEDEC JESD8C (2.7–3.6 V) and JESD7A (2.0–6.0 V), and exhibits latch-up immunity >100 mA per JESD78 Class II Level B.

Key Specifications

Pinout & Package

TSSOP14 package (SOT402-1): plastic thin shrink small outline, 14-lead, 4.4 mm body width, 0.65 mm pitch, exposed pad not electrically connected.

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 74HCT164PW,118, the HC variant offers lower input threshold sensitivity but wider VCC range; versus SN74HC595PWR, it trades latch functionality and 3-state control for smaller size and lower gate count - ideal for cost- and space-sensitive fixed-output applications.

Availability

74HC164PW,118 is available at Aetrix Electronics and suitable for LED display drivers, microcontroller I/O expansion, and industrial PLC output modules requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74HC164PW,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, discrete, and MOSFET solutions for industrial, automotive, and consumer markets.

The 74HC164 belongs to Nexperia's standard logic portfolio, designed specifically for robust, low-power serial interface bridging in space-constrained embedded systems where reliability across wide voltage and temperature ranges is critical.

FAQ

What is the maximum clock frequency supported by the 74HC164PW,118?

The 74HC164PW,118 supports up to 85 MHz maximum clock frequency at VCC = 6.0 V and CL = 50 pF, as specified in Table 7 of the Nexperia datasheet Rev. 11. At 4.5 V, fmax drops to 71 MHz (typ) and 55 MHz (min over temperature). This allows reliable operation in high-speed serial loading applications such as LED scanning at >1 kHz refresh rates.

Can DSA and DSB be used simultaneously for data input?

No - DSA and DSB are mutually gated: data enters only through the input whose companion is held HIGH. If both are HIGH, data appears at both inputs but only one path is enabled per cycle; if both are LOW, no data is loaded. This architecture prevents bus contention and eliminates need for external steering logic in multi-source configurations.

Is the TSSOP14 package of 74HC164PW,118 lead-free and RoHS compliant?

Yes - the 74HC164PW,118 uses a lead-free, halogen-free, and RoHS-compliant TSSOP14 package (SOT402-1) per Nexperia's product compliance documentation. The device meets JEDEC J-STD-020 moisture sensitivity level MSL3 and is qualified for reflow soldering per IPC/JEDEC J-STD-020D.2.

Does the 74HC164PW,118 include an output latch or storage register?

No - the 74HC164PW,118 is a pure shift register without a separate storage register or output latch. Outputs Q0–Q7 change synchronously with each clock edge during shifting. To hold stable parallel output, external latching or controlled clock gating (e.g., disabling CP after load) is required - unlike the SN74HC595 which integrates a transparent latch.