Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Integrated Circuits (ICs) > Logic > Gates and Inverters

onsemi 74ACT00SC

Name: 74ACT00SC
Brand: onsemi
SKU: 74ACT00SC
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: 74ACT00SC

Manufacturer:: onsemi

Category:: Gates and Inverters

Package:: -

Datasheet:: 74ACT00SC.pdf

Description:: IC GATE NAND

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:66,560

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

74ACT00SC from Fairchild Semiconductor is a quad 2-input NAND gate logic IC with TTL-compatible inputs, 5.5V supply operation, 4.0 ns typical propagation delay (tPHL at VCC = 5.0V), ±24 mA output drive capability, and SOIC-14 narrow-body packaging. It serves as a fundamental combinational logic element in digital control circuits, bus interface logic, and address decoding stages of industrial microcontroller systems.

For engineers reviewing the 74ACT00SC datasheet, pinout, applications, or equivalent options, key selection criteria include TTL input compatibility, guaranteed 4.5–5.5V operation, sub-10 ns AC timing across temperature, low ICC quiescent current (≤20 µA), and JEDEC MS-012 SOIC package footprint compatibility with legacy 74-series layouts.

Technical Context

The 74ACT00SC implements four independent 2-input NAND gates using advanced AC/ACT CMOS technology. Its TTL-compatible inputs accept VIH ≥ 2.0 V and VIL ≤ 0.8 V at VCC = 4.5–5.5 V, enabling direct interfacing with legacy TTL outputs without level-shifting.

Each gate delivers VOH ≥ 4.4 V (IOH = –24 mA) and VOL ≤ 0.44 V (IOL = 24 mA) under full-load conditions, with propagation delays tightly specified from –40°C to +85°C and characterized at CL = 50 pF. The device exhibits no internal latching or state retention-purely combinational behavior.

Key Specifications

Parameter	Value and Actual Design Meaning
Logic Function	Quad 2-input NAND - four independent gates, no shared resources or internal routing
Supply Voltage Range	4.5 V to 5.5 V - ensures compatibility with standard 5 V TTL/CMOS systems and rejects noise outside this band
Propagation Delay (tPHL)	4.0 ns typical at VCC = 5.0 V, CL = 50 pF - enables reliable operation in 100+ MHz clock-domain edge-sensitive logic
Output Drive	±24 mA per output - supports direct driving of multiple 74-series inputs or small LED loads without buffers
Input Compatibility	TTL-compatible - accepts standard TTL logic levels (VIH ≥ 2.0 V, VIL ≤ 0.8 V), eliminating need for external level translators
Quiescent ICC	≤20 µA at VCC = 5.5 V - minimizes static power in always-on control logic and battery-backed subsystems
Operating Temperature	–40°C to +85°C - qualified for industrial-grade embedded applications including motor controllers and PLC I/O modules

Pinout & Package

74ACT00SC uses a 14-lead Small Outline Integrated Circuit (SOIC) package per JEDEC MS-012, 0.150" narrow body, with 1.27 mm lead pitch and gull-wing terminations. Pin 1 is marked by a beveled corner or dot; the package is lead-free per J-STD-020B.

Pin/Terminal	Circuit Role	Design Meaning
1, 2, 4, 5, 8, 9, 11, 12	Input (A1/B1, A2/B2, A3/B3, A4/B4)	Four pairs of NAND inputs - each pair drives one gate; no internal cross-connection between gates
3, 6, 10, 13	Output (Y1, Y2, Y3, Y4)	Active-low open-drain–compatible CMOS outputs - fully rail-to-rail swing with load-dependent rise/fall times
7	GND	Ground reference for all logic thresholds and output drivers - must be low-impedance for noise immunity
14	VCC	Positive supply terminal - decoupling capacitor (0.1 µF ceramic) required within 10 mm for stable high-speed switching

Key Features

Feature	Design Value
TTL-compatible input thresholds	VIH ≥ 2.0 V and VIL ≤ 0.8 V at VCC = 4.5–5.5 V - enables plug-in replacement of 74LS00 in mixed-logic systems
High-output current drive	24 mA sink/source per output - eliminates need for external buffer stages when driving 10+ 74AC inputs or indicator LEDs
Low quiescent power	ICC ≤ 20 µA max - reduces standby power in always-on logic sections such as watchdog enable paths or reset supervisors
Industrial temperature range	–40°C to +85°C operation - supports deployment in uncontrolled ambient environments like factory-floor controllers
JEDEC-standard SOIC-14 footprint	M14A package (MS-012) - ensures mechanical and layout compatibility with existing 74-series PCB land patterns

Applications

Industrial Control Logic	Microcontroller Bus Interface
Use Scenario: Discrete logic for enabling/disabling peripheral modules (ADCs, DACs, UARTs) based on address decode signals in an 8-bit microcontroller system. IC Role / Device Role / Timing Role: Combinational NAND gate implementing active-low chip select generation with setup/hold timing margins verified at 8 MHz. Use Value: Eliminates FPGA or CPLD resource usage for simple gating functions while maintaining deterministic propagation delay (<9.5 ns max).	Use Scenario: Level translation and signal conditioning between a 5 V microcontroller and 3.3 V peripheral ICs requiring strict input voltage thresholds. IC Role / Device Role / Timing Role: Input-stage logic gate accepting TTL-level signals and delivering clean CMOS-compatible outputs with defined VOH/VOL. Use Value: Provides robust noise margin (≥1.2 V) and fast edge rates (125 mV/ns min) without external biasing or resistors.
Digital Power Sequencing	Legacy System Upgrades
Use Scenario: Generating synchronized enable signals for multiple DC-DC converters in a multi-rail power supply, triggered by a master reset line. IC Role / Device Role / Timing Role: Glue logic element combining reset and power-good signals to produce sequenced EN# pulses with precise timing windows. Use Value: Guarantees <10 ns inter-output skew and sub-100 ns total propagation, critical for avoiding brown-out during power-up.	Use Scenario: Replacing obsolete 74LS00 in field-repair scenarios where board rework is prohibited and pinout must match exactly. IC Role / Device Role / Timing Role: Drop-in functional replacement with identical pin assignment, same SOIC-14 footprint, and improved speed/power trade-off. Use Value: Delivers 2× faster propagation than 74LS00 while consuming <1% of its quiescent power, extending system MTBF.

Industrial Control Logic

Microcontroller Bus Interface

Use Scenario: Discrete logic for enabling/disabling peripheral modules (ADCs, DACs, UARTs) based on address decode signals in an 8-bit microcontroller system.

IC Role / Device Role / Timing Role: Combinational NAND gate implementing active-low chip select generation with setup/hold timing margins verified at 8 MHz.

Use Value: Eliminates FPGA or CPLD resource usage for simple gating functions while maintaining deterministic propagation delay (<9.5 ns max).

Use Scenario: Level translation and signal conditioning between a 5 V microcontroller and 3.3 V peripheral ICs requiring strict input voltage thresholds.

IC Role / Device Role / Timing Role: Input-stage logic gate accepting TTL-level signals and delivering clean CMOS-compatible outputs with defined VOH/VOL.

Use Value: Provides robust noise margin (≥1.2 V) and fast edge rates (125 mV/ns min) without external biasing or resistors.

Digital Power Sequencing

Legacy System Upgrades

Use Scenario: Generating synchronized enable signals for multiple DC-DC converters in a multi-rail power supply, triggered by a master reset line.

IC Role / Device Role / Timing Role: Glue logic element combining reset and power-good signals to produce sequenced EN# pulses with precise timing windows.

Use Value: Guarantees <10 ns inter-output skew and sub-100 ns total propagation, critical for avoiding brown-out during power-up.

Use Scenario: Replacing obsolete 74LS00 in field-repair scenarios where board rework is prohibited and pinout must match exactly.

IC Role / Device Role / Timing Role: Drop-in functional replacement with identical pin assignment, same SOIC-14 footprint, and improved speed/power trade-off.

Use Value: Delivers 2× faster propagation than 74LS00 while consuming <1% of its quiescent power, extending system MTBF.

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad NAND gate applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74ACT00DR	Same logic function, TTL-compatible inputs, identical AC/ACT specs; TI-manufactured, SOIC-14 (PW package), RoHS-compliant	No functional deviation; validated for same industrial temp range and 5 V supply use cases	Preferred for TI-design ecosystems or dual-sourcing requirements with identical electrical behavior
MC74ACT00DG	Onsemi variant; identical pinout and DC/AC specs; specified for –55°C to +125°C extended temp range	Supports military/aerospace applications where wider thermal range is mandatory	Select when operating beyond –40°C to +85°C, or when Onsemi supply chain alignment is required

Compared with 74ACT00SC, SN74ACT00DR offers identical performance in TI-aligned designs, while MC74ACT00DG extends operational temperature range to –55°C - making it suitable for harsh-environment deployments where thermal margin is critical.

Availability

74ACT00SC is available at Aetrix Electronics and suitable for industrial control logic, microcontroller bus interface, digital power sequencing, and legacy system upgrades requiring stable component supply and long-term obsolescence management.

Supply support for 74ACT00SC 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

Fairchild Semiconductor was a U.S.-based semiconductor company specializing in analog and discrete power products, acquired by ON Semiconductor in 2016. Its legacy logic portfolio remains widely deployed in industrial and automotive systems.

The 74ACT00SC belongs to Fairchild's ACT (Advanced CMOS TTL-compatible) logic family, designed for high-speed, low-power replacement of bipolar TTL in mixed-signal embedded systems requiring robust noise immunity and rail-to-rail output swing.

FAQ

What is the maximum supply voltage rating for the 74ACT00SC?

The 74ACT00SC has an absolute maximum supply voltage (VCC) rating of +7.0 V, but its recommended operating range is strictly 4.5 V to 5.5 V. Operating outside this range may cause undefined logic states, increased ICC, or accelerated parametric drift. The 74ACT00SC is not rated for 3.3 V operation - use 74AC00 variants instead.

Does the 74ACT00SC support direct connection to TTL outputs without level shifting?

Yes, the 74ACT00SC features TTL-compatible inputs with VIH ≥ 2.0 V and VIL ≤ 0.8 V at VCC = 4.5–5.5 V, allowing direct interface with standard 74LS, 74F, and other TTL-family outputs. This eliminates external resistors or translators in mixed-logic designs - a core design advantage of the 74ACT00SC.

What is the worst-case propagation delay for the 74ACT00SC over temperature?

The worst-case tPHL and tPLH for the 74ACT00SC are both 9.5 ns at VCC = 5.0 V, TA = –40°C to +85°C, and CL = 50 pF. This value is guaranteed across the full industrial temperature range and forms the basis for timing closure in synchronous logic designs using the 74ACT00SC.

Can the 74ACT00SC drive multiple 74AC inputs directly?

Yes, the 74ACT00SC can drive up to 10 standard 74AC inputs per output while maintaining valid VOH/VOL levels, due to its ±24 mA output drive strength and low output impedance. This capability is confirmed by IOL/IOH test conditions in the datasheet and eliminates need for fanout buffers in most glue-logic applications involving the 74ACT00SC.

Is the 74ACT00SC pin-compatible with the 74LS00?

Yes, the 74ACT00SC uses the same 14-pin SOIC (M14A) package and identical pinout as the 74LS00, including input/output assignments and power/ground locations. This allows direct PCB-level replacement in legacy designs - a documented feature of the 74ACT00SC for seamless TTL-to-CMOS migration.

74ACT00SC Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: *

Package/Case:: -

Packaging:: Bulk

Product Status:: Active

Logic Type:: -

Number of Circuits:: -

Number of Inputs:: -

Features:: -

Voltage - Supply:: -

Current - Quiescent (Max):: -

Current - Output High, Low:: -

Input Logic Level - Low:: -

Input Logic Level - High:: -

Max Propagation Delay @ V, Max CL:: -

Operating Temperature:: -

Grade:: -

Qualification:: -

Mounting Type:: -

Supplier Device Package:: -

74ACT00SC FAQ

1.How can I place an order for 74ACT00SC through Aetrix?

Please submit a Request for Quotation (RFQ) for 74ACT00SC 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 74ACT00SC reliable?

The price and inventory of 74ACT00SC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ACT00SC is usually 5 days.

3.What payment methods are accepted for 74ACT00SC?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74ACT00SC transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 74ACT00SC?

74ACT00SC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74ACT00SC 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 74ACT00SC?

For technical support, including 74ACT00SC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ACT00SC requirements.

6.How does Aetrix verify that 74ACT00SC is sourced from the original manufacturer or authorized distributors?

All 74ACT00SC 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 74ACT00SC meets industry standards.

7.What is the process for return or replacement of 74ACT00SC?

All 74ACT00SC units undergo pre-shipment inspection (PSI). If there is an issue with 74ACT00SC, 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 74ACT00SC part is unused and in its original packaging.

Return procedure for 74ACT00SC:

1.Submit a request within 90 days.

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

Tech Hub

2026-09-09 Counterfeit Electronic Components: How to Detect, Authenticate, and Test Suspect Parts

Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …

2026-09-08 Obsolete Electronic Components: How to Source and Evaluate Replacements

A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.

2026-09-07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained

TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.

2026-09-04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-02 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…