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Home > Products > Integrated Circuits (ICs) > Logic > Counters, Dividers

Nexperia USA Inc. 74HCT4020PW,112

Name: 74HCT4020PW,112
Brand: Nexperia USA Inc.
SKU: 74HCT4020PW,112
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 74HCT4020PW,112

Manufacturer:: Nexperia USA Inc.

Category:: Counters, Dividers

Package:: -

Datasheet:: 74HCT4020PW,112.pdf

Description:: NEXPERIA 74HCT4020PW - BINARY CO

Quantity:: RFQ Add To RFQ list

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Inventory:11,105

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Product details

Overview

74HCT4020PW,112 from NXP Semiconductors is a 14-stage binary ripple counter IC in TSSOP-16 package, operating at 4.5–5.5 V supply, with typical propagation delay of 25 ns at 5 V and CMOS input compatibility. It serves as a frequency divider in clock tree distribution for microcontroller peripheral timing and industrial control sequencers.

For engineers reviewing the 74HCT4020PW,112 datasheet, 74HCT4020PW,112 pinout, 74HCT4020PW,112 application, or 74HCT4020PW,112 equivalent, key selection criteria include supply voltage range, maximum clock frequency (up to 28 MHz), output drive capability (±4 mA), propagation delay consistency across stages, and TTL-compatible input thresholds.

Technical Context

This device implements asynchronous cascaded flip-flops with a single clock input (CP) and master reset (MR). All 14 Q outputs are buffered and available on dedicated pins, with no internal feedback or preset capability - strictly a divide-by-2¹⁴ (16,384) counter.

It uses silicon-gate CMOS technology for low static power consumption (max 1 µA at 25 °C) and high noise immunity (min 0.4 V_H, max 0.8 V_L input hysteresis), ensuring reliable operation in mixed-signal industrial environments with shared ground planes.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage	4.5 V to 5.5 V - ensures compatibility with standard 5 V logic systems and tolerance against rail droop in dense PCB layouts.
Max Clock Frequency	28 MHz at V_CC = 5 V - supports division of common MCU clock sources (e.g., 28 MHz → 1.71 kHz final output).
Propagation Delay	25 ns (typ) per stage at V_CC = 5 V - defines worst-case cumulative delay of 350 ns across all 14 stages for timing budgeting.
Output Drive	±4 mA at V_CC = 5 V - sufficient to directly drive one 74HCT input or small LED with series resistor.
Input Threshold	V_IH = 2.0 V min, V_IL = 0.8 V max - guarantees reliable recognition of TTL-level signals without level-shifting.
Quiescent Current	1 µA max at 25 °C - enables use in low-power standby modes without significant current draw.

Pinout & Package

TSSOP-16 (4.4 mm × 5.0 mm, 0.65 mm pitch), thermally enhanced plastic package with exposed pad not electrically connected. Pin 1 marked by dot or bevelled corner.

Pin/Terminal	Circuit Role	Design Meaning
1 (MR)	Master Reset	Active-low asynchronous reset - clears all 14 flip-flops to zero regardless of clock state.
2 (Q0)	Stage 0 Output	LSB output, toggles on every rising edge of CP - used for /2 division and test point monitoring.
3–9, 11–15 (Q1–Q13)	Binary Weighted Outputs	Q_n provides /2ⁿ⁺¹ divided clock - Q13 is MSB (/16384), critical for long-interval timing.
10 (GND)	Ground	Reference return path for all internal logic and output drivers - must be low-impedance connection.
16 (V_CC)	Supply	Positive supply rail - requires local 100 nF ceramic decoupling within 5 mm of pin.

Key Features

Feature	Design Value
14-bit binary ripple counter	Provides fixed integer division ratio (1:16384) without external feedback components or configuration registers.
TTL-compatible inputs	Accepts standard 5 V TTL logic levels while consuming CMOS-level static power - simplifies interface in legacy designs.
Buffered complementary outputs	All Q outputs are individually buffered - prevents loading effects when multiple downstream loads are connected.
Asynchronous master reset	Enables deterministic initialization before clock enable - essential for synchronized system startup sequences.

Applications

Industrial Timer Module

Microcontroller Peripheral Clock Divider

Use Scenario: Programmable 10-second interval timer in PLC I/O modules using external crystal oscillator and software-triggered reset.

IC Role / Device Role / Timing Role: Primary frequency divider generating precise low-frequency enable pulses for relay drivers and analog sampling windows.

Use Value: Eliminates need for firmware-based counting loops, reducing CPU load and improving timing repeatability across temperature.

Use Scenario: Deriving baud-rate clocks for UART peripherals from a 14.7456 MHz crystal in an 8-bit MCU design.

IC Role / Device Role / Timing Role: Hardware divider producing clean 900 Hz reference for 9600-baud serial communication.

Use Value: Avoids jitter introduced by software prescalers and ensures stable bit timing independent of interrupt latency.

LED Blink Sequencer

Power Supply Soft-Start Controller

Use Scenario: 16-step visual status indicator on HVAC control panel using Q0–Q3 to drive discrete LEDs via current-limiting resistors.

IC Role / Device Role / Timing Role: Synchronous LED sequencing engine with uniform step duration defined by input clock period.

Use Value: Provides deterministic, glitch-free LED transitions without requiring microcontroller GPIO resources or PWM peripherals.

Use Scenario: Delayed gate enable for DC-DC converter MOSFETs during system power-up, using Q13 output to trigger enable after 1.6 s.

IC Role / Device Role / Timing Role: Fixed-delay timing element controlling power sequencing order between rails.

Use Value: Guarantees safe ramp-up sequence without firmware dependency or external RC timing component drift.

Equivalent & Alternatives

The following parts are listed as comparable options for similar binary counter applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74HC4020N	DIP-16 package, higher propagation delay (30 ns typ), same logic function and electrical specs.	Preferred for through-hole prototyping or legacy board rework where TSSOP footprint is unavailable.	Select when manual soldering or socket-based testing is required; avoid for high-density surface-mount production.
74LV4020PW,118	Lower supply range (1.0–5.5 V), reduced drive strength (±2 mA), 3.3 V optimized but pinout identical.	Suitable for mixed-voltage systems where 3.3 V logic coexists with 5 V peripherals, but not drop-in for pure 5 V designs.	Choose only if system operates below 4.5 V or requires lower power; verify output swing compatibility with downstream loads.

Compared with SN74HC4020N, the 74HCT4020PW,112 offers superior speed and TSSOP space savings; versus 74LV4020PW,118, it delivers stronger drive and guaranteed 5 V TTL interoperability at the cost of higher static current.

Availability

74HCT4020PW,112 is available at Aetrix Electronics and suitable for industrial timer modules, microcontroller peripheral clock dividers, and LED blink sequencers requiring stable component supply and long-term manufacturability.

Supply support for 74HCT4020PW,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, specializing in secure connectivity solutions for automotive, industrial, and IoT applications.

The 74HCT4020PW,112 belongs to NXP's 74HCT logic family - designed specifically for TTL-to-CMOS interfacing in industrial control and instrumentation systems where robust noise immunity and 5 V compatibility are mandatory.

FAQ

Is the 74HCT4020PW,112 compatible with 3.3 V microcontroller outputs?

No - its input thresholds are optimized for 5 V TTL levels (V_IL ≤ 0.8 V, V_IH ≥ 2.0 V). A 3.3 V logic high may fall below the guaranteed V_IH margin, risking unreliable clock detection. Level translation is required for safe interfacing.

Can the 74HCT4020PW,112 be used as a standalone oscillator?

No - it lacks internal feedback or oscillation circuitry. It requires an external clock source applied to the CP pin. For self-contained timing, pair it with a crystal oscillator module or RC oscillator driver circuit.

What is the maximum fan-out for Q13 output?

At V_CC = 5 V, Q13 can drive up to one standard 74HCT input (20 µA load) or two 74HC inputs under room temperature conditions. Driving more loads requires buffering due to cumulative capacitive loading and propagation delay increase.

Does the master reset (MR) pin require a pull-up resistor?

Yes - MR is active-low and internally unconnected. A 10 kΩ pull-up to V_CC is recommended to ensure reliable deassertion during power-up and prevent unintended resets caused by floating input conditions.

74HCT4020PW,112 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: *

Package/Case:: -

Packaging:: Bulk

Product Status:: Active

Logic Type:: -

Direction:: -

Number of Elements:: -

Number of Bits per Element:: -

Reset:: -

Timing:: -

Count Rate:: -

Trigger Type:: -

Voltage - Supply:: -

Operating Temperature:: -

Grade:: -

Qualification:: -

Mounting Type:: -

Supplier Device Package:: -

74HCT4020PW,112 FAQ

1.How can I place an order for 74HCT4020PW,112 through Aetrix?

Please submit a Request for Quotation (RFQ) for 74HCT4020PW,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 74HCT4020PW,112 reliable?

The price and inventory of 74HCT4020PW,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HCT4020PW,112 is usually 5 days.

3.What payment methods are accepted for 74HCT4020PW,112?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HCT4020PW,112 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 74HCT4020PW,112?

74HCT4020PW,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74HCT4020PW,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 74HCT4020PW,112?

For technical support, including 74HCT4020PW,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HCT4020PW,112 requirements.

6.How does Aetrix verify that 74HCT4020PW,112 is sourced from the original manufacturer or authorized distributors?

All 74HCT4020PW,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 74HCT4020PW,112 meets industry standards.

7.What is the process for return or replacement of 74HCT4020PW,112?

All 74HCT4020PW,112 units undergo pre-shipment inspection (PSI). If there is an issue with 74HCT4020PW,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 74HCT4020PW,112 part is unused and in its original packaging.

Return procedure for 74HCT4020PW,112:

1.Submit a request within 90 days.

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

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