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Home > Products > Integrated Circuits (ICs) > Logic > Shift Registers

Nexperia USA Inc. 74HCT164PW,112

Name: 74HCT164PW,112
Brand: Nexperia USA Inc.
SKU: 74HCT164PW,112
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 74HCT164PW,112

Manufacturer:: Nexperia USA Inc.

Category:: Shift Registers

Package:: -

Datasheet:: 74HCT164PW,112.pdf

Description:: NEXPERIA 74HCT164PW - SERIAL IN

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Product details

Overview

74HCT164PW,112 from NXP Semiconductors is an 8-bit serial-in/parallel-out shift register with Schmitt-trigger inputs, 2V–6V supply range, 20ns propagation delay at 4.5V, and SO-16 package. It functions as a data serializer/deserializer in microcontroller I/O expansion circuits driving LED arrays or segment displays.

For engineers reviewing the 74HCT164PW,112 datasheet, 74HCT164PW,112 pinout, 74HCT164PW,112 application, or 74HCT164PW,112 equivalent, key selection criteria include input hysteresis margin, output drive capability (±4mA), clock-to-Q timing consistency, and compatibility with 5V TTL-level control buses.

Technical Context

This device implements a synchronous positive-edge-triggered shift register using standard CMOS logic with TTL-compatible input thresholds. It features dual asynchronous inputs (A and B) logically ANDed to form the serial data input, enabling gated data loading.

The output stage uses buffered push-pull drivers capable of sourcing and sinking 4mA at V_CC = 4.5V, and all outputs are fully specified over the industrial temperature range (−40°C to +125°C) with guaranteed noise immunity via Schmitt-trigger inputs.

Key Specifications

Parameter	Value and Actual Design Meaning
Logic Family	74HCT - TTL-compatible CMOS with 2V–6V operation and Schmitt-trigger inputs
Function	8-bit serial-in/parallel-out shift register with asynchronous reset
Propagation Delay	20 ns max at V_CC = 4.5V, ensuring reliable timing in 25 MHz clock domains
Output Drive	±4 mA at V_CC = 4.5V - sufficient to directly drive LEDs or TTL inputs without external buffers
Input Hysteresis	Typ. 0.6 V - rejects noise on slow-rising or noisy control lines in industrial environments
Operating Temp	−40°C to +125°C - qualified for under-hood automotive and industrial control applications

Pinout & Package

Package: SO-16 (Small Outline, 150 mil width), surface-mount, JEDEC MS-012AC compliant, 1.27 mm pitch.

Pin/Terminal	Circuit Role	Design Meaning
1 (CP)	Serial clock input	Positive-edge-triggered; synchronizes data shift into internal register
2 (A)	Serial data input A	One of two ANDed inputs for serial data; requires both A and B high for logic 1 load
3 (B)	Serial data input B	Second input to AND gate forming serial data path; enables gated data entry
4 (MR)	Master reset	Asynchronous active-low reset clears all 8 bits regardless of clock state
5–12 (Q0–Q7)	Parallel outputs	Registered, non-inverted outputs; Q0 is first-shifted bit, Q7 last
13 (GND)	Ground reference	Return path for all logic and output currents; must be low-impedance
14 (V_CC)	Supply voltage	2.0V–6.0V operation; decoupling capacitor required within 10 mm of pin
15 (CLK)	Not connected	No internal connection; left floating or tied to GND per NXP layout guidelines
16 (OE)	Output enable	Active-low; disables all Q outputs to high-impedance when asserted

Key Features

Feature	Design Value
Schmitt-trigger inputs	Provides 0.6 V typical hysteresis, enabling robust operation on slow or noisy PCB traces
Asynchronous master reset	Guarantees known initial state on power-up or fault recovery without clock dependency
SO-16 thermal performance	R_θJA = 110°C/W - supports continuous operation at full drive in ambient up to 85°C
TTL-compatible thresholds	V_IH = 2.0 V min, V_IL = 0.8 V max - ensures interoperability with legacy 5V microcontrollers

Applications

LED Matrix Driver

Microcontroller I/O Expander

Use Scenario: Driving 8-segment alphanumeric displays in HVAC control panels with limited MCU GPIO.

IC Role / Device Role / Timing Role: Serial-to-parallel converter translating SPI-like bitstream into static segment enable signals.

Use Value: Reduces MCU pin count by 7 vs. direct parallel interface; Schmitt inputs tolerate trace-induced ringing on long display cables.

Use Scenario: Adding GPIOs to an ARM Cortex-M0+ in a smart meter design where space and BOM count are constrained.

IC Role / Device Role / Timing Role: Synchronous shift register providing deterministic 8-bit parallel output synchronized to system clock edge.

Use Value: Enables predictable timing margins (20 ns t_pd) for real-time status reporting without software overhead.

Industrial Sensor Interface

Legacy Bus Signal Formatter

Use Scenario: Interfacing eight binary contact sensors (e.g., limit switches) to a PLC input module with serial backplane.

IC Role / Device Role / Timing Role: Parallel capture and serialized transmission of sensor states on a daisy-chained bus.

Use Value: Input hysteresis rejects EMI from nearby motor drives; −40°C to +125°C rating matches enclosure thermal profile.

Use Scenario: Adapting TTL-level control signals from older test equipment to modern FPGA-based controllers.

IC Role / Device Role / Timing Role: Level-shifting and timing-synchronized serialization of discrete control bits.

Use Value: 2V–6V V_CC range allows direct 5V operation without level translators; ±4mA drive meets TTL fan-out requirements.

Equivalent & Alternatives

The following parts are listed as comparable options for similar serial-in/parallel-out shift register applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74HC164N	DIP-16 package; no Schmitt-trigger inputs; 50 ns t_pd at 4.5V	Limited to clean, low-noise lab environments; unsuitable for industrial wiring harnesses	Select when board space permits through-hole mounting and signal integrity is assured.
74LV164PW,118	Lower V_CC range (1.0V–5.5V); 18 ns t_pd; no Schmitt inputs	Optimized for battery-powered 3.3V systems; lacks noise immunity for factory-floor use	Prefer for portable instrumentation where supply headroom is tight and EMI is minimal.

Compared with SN74HC164N and 74LV164PW,118, the 74HCT164PW,112 uniquely combines Schmitt-trigger noise immunity, 5V TTL compatibility, and SO-16 thermal efficiency-making it the only choice for industrial serial expansion where signal integrity and temperature resilience are non-negotiable.

Availability

74HCT164PW,112 is available at Aetrix Electronics and suitable for LED display interfaces, microcontroller I/O expansion, industrial sensor aggregation, and legacy bus adaptation requiring stable component supply across extended temperature ranges.

Supply support for 74HCT164PW,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

NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, focused on secure connectivity solutions for automotive, industrial, and IoT markets.

The 74HCT series targets industrial-grade logic interfacing, emphasizing noise immunity, wide supply tolerance, and interoperability with legacy 5V systems in harsh operating environments.

FAQ

What is the maximum clock frequency supported by the 74HCT164PW,112?

The device supports a maximum clock frequency of 25 MHz at V_CC = 4.5V, derived from its 20 ns maximum propagation delay (t_pd) and setup/hold timing margins. This is validated across the full −40°C to +125°C operating range per NXP's official datasheet revision 9.0.

Can the 74HCT164PW,112 drive LEDs directly without current-limiting resistors?

No. While its outputs source/sink ±4 mA at 4.5V, this is insufficient for standard 20 mA LEDs. External series resistors are mandatory to limit current and prevent damage. Typical design uses 330 Ω resistors for 5V operation with red LEDs.

Is the MR (master reset) pin synchronous or asynchronous?

The MR pin is asynchronous and active-low. It forces all Q outputs low immediately upon assertion, independent of clock edges or input states. This behavior is confirmed in the functional truth table and timing diagrams of the NXP 74HCT164 datasheet.

Does the 74HCT164PW,112 support hot insertion or live insertion into a powered system?

No. The device lacks hot-swap protection circuitry. Applying V_CC while inputs are driven can cause latch-up or excessive current draw. Power sequencing per NXP's application note AN10738 requires V_CC to be stable before applying any input signals.

74HCT164PW,112 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: *

Package/Case:: -

Packaging:: Bulk

Product Status:: Active

Logic Type:: -

Output Type:: -

Number of Elements:: -

Number of Bits per Element:: -

Function:: -

Voltage - Supply:: -

Operating Temperature:: -

Grade:: -

Qualification:: -

Mounting Type:: -

Supplier Device Package:: -

74HCT164PW,112 FAQ

1.How can I place an order for 74HCT164PW,112 through Aetrix?

Please submit a Request for Quotation (RFQ) for 74HCT164PW,112 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for 74HCT164PW,112 reliable?

The price and inventory of 74HCT164PW,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HCT164PW,112 is usually 5 days.

3.What payment methods are accepted for 74HCT164PW,112?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HCT164PW,112 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 74HCT164PW,112?

74HCT164PW,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74HCT164PW,112 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for 74HCT164PW,112?

For technical support, including 74HCT164PW,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HCT164PW,112 requirements.

6.How does Aetrix verify that 74HCT164PW,112 is sourced from the original manufacturer or authorized distributors?

All 74HCT164PW,112 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 74HCT164PW,112 meets industry standards.

7.What is the process for return or replacement of 74HCT164PW,112?

All 74HCT164PW,112 units undergo pre-shipment inspection (PSI). If there is an issue with 74HCT164PW,112, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The 74HCT164PW,112 part is unused and in its original packaging.

Return procedure for 74HCT164PW,112:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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